Abstract: The invention provides highly functional epoxy resins that may be used themselves in coating formulations and applications but which may be further functionalized via ring-opening reactions of the epoxy groups yielding derivative resins with other useful functionalities. The highly functional epoxy resins are synthesized from the epoxidation of vegetable or seed oil esters of polyols having 4 or more hydroxyl groups/molecule. In one embodiment, the polyol is sucrose and the vegetable or seed oil is selected from corn oil, castor oil, soybean oil, safflower oil, sunflower oil, linseed oil, tall oil fatty acid, tung oil, vernonia oil, and mixtures thereof. Methods of making of the epoxy resin and each of its derivative resins are disclosed as are coating compositions and coated objects using each of the resins.

Abstract: An epoxide agent for an epoxy resin system, the epoxide agent comprising at least one non-acid functional rosin moiety and at least one epoxide moiety. Another embodiment is a curing agent for an epoxy resin system comprising at least one non-acid functional rosin moiety and at least one moiety that is reactive with an epoxy.

Abstract: A catalyst for an organic reaction and a method of using a catalyst in an organic reaction are provided. The catalyst for an addition or condensation reaction includes a graphene oxide including an oxygen functional group, and the catalyst is configured to promote the addition or condensation reaction by bonding the oxygen functional group with an alkali metal ion or alkali earth metal ion during the addition or condensation reaction.

Abstract: A salt represented by the formula (I): wherein R1 and R2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, X1 represents a C1-C17 divalent saturated hydrocarbon group which can have one or more fluorine atoms and in which one or more —CH2— can be replaced by —O— or —CO—, R3 represents a group having a cyclic ether structure, and Z1+ represents an organic cation.

Abstract: A composition is provided that, when utilized in combination with warfarin, greatly improves the anticoagulant effects of warfarin in mammalian subjects. The composition is a compound having a naphthohydroquinone ring system substantially similar to the ring system of the reduced form of vitamin K1 and has the general formula: where R1 and R4 are hydrogen or acyl, R2 is a saturated or unsaturated alkyl group with up to 6 carbons, and R3 is a saturated or unsaturated alkyl group with up to 20 carbons, or R2 and R3 are part of a cyclic or polycyclic ring system.

Abstract: The present invention provides a salt represented by the formula (I): wherein Q1 and Q2 independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group, L1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO—, L2 represents a single bond or a C1-C6 alkanediyl group in which one or more —CH2— can be replaced by —O— or —CO—, Y represents a C3-C18 alicyclic hydrocarbon group which can have one or more substituents, and one or more —CH2— in the alicyclic hydrocarbon group can be replaced by —O—, —CO— or —SO2—, and Z+ represents an organic counter ion.

Abstract: Glycidyl 2-propylheptanoate, glycidyl 4-methyl-2-propylhexanoate or a mixture of these (referred to collectively for short as glycidyl ester).

Abstract: The purpose of the invention is to provide a polymerizable liquid crystal compound that has a liquid crystal phase with a wide temperature range, has an excellent compatibility with another polymerizable liquid crystal compound, has an excellent solubility in organic solvent and is polymerizable in air by heat or light. Means for Solving the Subject A polymerizable liquid crystal compound represented by formula (1) wherein A1 and A2 are a ring such as 1,4-cyclohexylene and 1,4-phenylene; Z1 to Z3 are a bonding group such as a single bond and —O—, m is an integer of 1 to 5; Q1 and/or Q2 are —O(C2H4O)n1(C3H6O)n2— or —O(C3H6O)n2(C2H4O)n1—, where n1 and n2 are integer of 0 to 5 and the sum of n1 and n2 is 2 to 5; one of Q1 and Q2 may be alkylene; P1 and P2 are a polymerizable group represented by any one of formula (2-1) to formula (2-3) and R is hydrogen, halogen or alkylene having 1 to 5 carbons.

Abstract: The present invention relates to a method for preparing polyols of formula (I?) R?1 being H or an alkyl group, R? being especially an alkyl group, A1, being an alkylene radical and R3, are being especially a group -A2-O—Y?, A2 being an alkylene radical and Y? being especially H, said method especially comprising a step of epoxidation of a compound of formula R?1 being H or an alkyl group, A1 being defined as above in formula (I?) and R4 being especially a group -A2-O—Y1?, A2 being defined as above in formula (I?) and Y?1 being especially H, in order to obtain a compound of formula A1 being defined as above, R??1 being H or an alkyl group and R5 being especially a group of formula -A2-O—Y2?, A2 being as defined above in formula (I?) and Y?2 being especially H,

Abstract: The present invention provides a salt represented by the formula (I): wherein Q1 and Q2 independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group, L1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO—, L2 represents a single bond or a C1-C6 alkanediyl group in which one or more —CH2— can be replaced by —O— or —CO—, Y represents a C3-C18 alicyclic hydrocarbon group which can have one or more substituents, and one or more —CH2— in the alicyclic hydrocarbon group can be replaced by —O—, —CO— or —SO2—, and Z+ represents an organic counter ion.

Abstract: A polyol includes the reaction product of an epoxidized oil and an organic acid. The epoxidized oil and the organic acid are reacted in the presence of a Lewis base catalyst including at least one of a phosphorous atom or a nitrogen atom. The polyol is formed by a method that includes the step of reacting the epoxidized oil with the organic acid in the presence of the Lewis base catalyst.

Abstract: The present invention relates to methods of producing modified fatty acids comprising a functional group which is a hydroxyl group, an epoxy group, an acetylenic group or a conjugated double bond. For example, seeds, seedoil and methods of making seedoil are provided wherein at least 23% (mol %) of the fatty acid content of the seed or seedoil comprises the functional group. Also provided are novel polypeptides, and polynucleotides thereof, which can be used to produce the modified fatty acids, particularly in transgenic plants and cells suitable for fermentation.

Abstract: [Summary] Not only to improve insulating properties, heat resistance, mechanically physical properties and the like of an insulating composition but also to lower viscosity of an insulating material (insulating polymer component) so as to improve a productivity thereby raising reliability of an insulating product. [Object] Upon using an insulating material including at least an insulating polymer component, this insulating material is heated to be three-dimensionally crosslinked thereby to obtain an insulating composition which is applied for an insulating constitution of a voltage equipment. The insulating polymer component is formed of a vegetable oil such as linseed oil or the like. The vegetable oil undergoes esterification thereby to obtain fatty acid which is epoxidized thereby obtaining epoxidized vegetable oil ester which is applied for.

Abstract: The present invention provides a resin composition for producing an optical component in which resin composition respective of a (meth)acrylic equivalent and a content of a repeating unit represented by the general formula (1) are adjusted to given ranges, an optical component which is made of the resin composition, and an image display device. The resin composition of the present invention for producing an optical component is arranged such that the resin composition contains at least one kind of compound whose molecule contains the repeating unit represented by the general formula (1) and at least one (meth)acryloyl group and the (meth)acrylic equivalent and the content of the repeating unit meet the given ranges.

Abstract: An unhindered polyol is used to react with an epoxidized soyate to make epoxidized soyate diester in the presence of a catalyst. The unhindered polyol can be 1,3-propanediol or any polyol having four or more carbon atoms with no two adjacent carbon atoms having hydroxyl functionality. Preferably, a combination of catalysts is used to promote the transesterification reaction of the epoxidized soyate with the unhindered polyol to yield a high percentage of epoxidized soyate diester with epoxy functionality retained. The primary catalyst is a metallic hydroxide, and the secondary catalyst is a titanate. Bioderived epoxidized soyate diester plasticizers useful for thermoplastics and thermosets result.

Abstract: A polyfunctional epoxy compound, represented by a formula (I), comprising a nucleophilic organic group A having a nucleophilic group other than an epoxy group, and an epoxy-containing group B having an epoxy group: A-R?B)n??(I) wherein R represents an organic group of (n+1) valence, and n represents 2 or 3.

Abstract: The present invention relates to structural, radically curable resin compositions suitable for (re)lining containing a. 30-70 wt. % of a resin characterized by (i) a molecular weight Mn between 500 and 3000 and (ii) an acid value between 0 and 30 mg KOH/g resin, and wherein at least 80 % of the total amount of resin is vinyl ester resin, b. 30-70 wt. % of at least one reactive diluent, characterized in that at least 25% of the reactive diluent is a difunctional diluent having a molecular weight Mn between 200 and 500 and the optional monofunctional diluent having a molecular weight Mn between 100 and 200, c. 0.00001-5 wt. % initiator, d. 0.00001-5 wt. % inhibitor further characterized in that the average molecular weight per reactive unsaturation (WPU) of the components (a) and (b) is equal or greater than 190 Dalton and that the amount of styrene in the resin composition is less than 5 wt. % (calculated as wt. % of the total weight of the components (a), (b), (c) and (d)).

Abstract: A process for preparing palm-based polyol monomer includes reacting unsaturated fatty acids or its corresponding triglycerides with polyhydric alcohol. In particular, one example uses oleic acid with about 70% purity as the starting material for preparing the polyol monomer. Moreover, another example uses refined, bleached, and deodorized (RBD) palm olein as an alternative to oleic acid as the starting material. The preparation of the polyol monomer involves the production of monoglyceride of unsaturated fatty acids, which was further epoxidized with peracid and finally ring opened with polyhydric alcohols. Such polyol monomer is used as a raw material for the production of various types of polyurethane products.

Abstract: The present invention provides an adamantyl group containing epoxy-modified (meth)acrylate and a resin composition containing it which are imparted by transparency, optical characteristics such as (durable) light resistance and the like, heat-resistance, and good mechanical properties. For example, they are an adamantyl group containing epoxy-modified (meth)acrylate having the following general formula (I) and a composition containing it. In the formula, R1 represents a hydrogen atom or a methyl group, and R2 represents a halogen atom or an aliphatic hydrocarbon group which may contain a hetero atom. Plural R2 may be the same or different, and m represents an integer of 0 to 4 and n represents an integer of 0 or more.

Abstract: The present invention discloses reworkable epoxy compositions suitable for encapsulation of and underfill for electronic components comprising (a) a curable epoxy component which is the reaction product of an epoxidized 1-alkenyl ether or 1-cycloalkenyl ether and a polycarboxylic acid, the reaction product being substantially free of unreacted acid or acid impurities; and (b) a curing agent for the epoxy component, wherein the reaction products of the epoxy composition are reworkable. The cured epoxy compositions of this invention contain thermally labile weak ?-alkoxy ester linkages which provide for the reworkable aspect of the invention.

Abstract: A toughener comprising a trithiocarbonate polymer having an epoxy end group is described which is utilized with various thermosettable polymers such as epoxy, polyurethane, and the like. A toughened composition is made by curing the thermosettable polymer and the toughener utilizing various curing agents.

Abstract: Water-compatible branched or unbranched epoxy compounds comprise a backbone having covalently attached two or more epoxy moieties and one or more of the same or different sulfonate or thiosulfate moieties.

Abstract: The invention relates to an improved method for producing epoxidated glyceride acetates. The inventive method involves transesterifying epoxy fatty acid esters with triacetin.

Abstract: This invention relates to thermosetting resin compositions useful for mounting onto a circuit board semiconductor devices, such as CSPs, BGAs, LGAs and the like, each of which having a semiconductor chip, such as LSI, on a carrier substrate. The compositions of this invention are reworkable when subjected to appropriate conditions.

Abstract: Unsaturated or polyunsaturated, conjugated or nonconjugated hydrocarbons are reacted with an oxidizing agent including hydroperoxides and monopersulfate compounds in the presence of phase-transfer catalysts. Suitable hydrocarbons include ricinic compounds such as castor oil and dehydrated castor oil. The phase-transfer catalysts include novel tungsten peroxo complexes, such as quaternary ammonium tetrakis (diperoxotungsto) phosphates, and crown ethers. Other additives utilized include pH buffers and alkaline compounds including alkali metal and alkaline earth metal carbonates, and solvents.

Abstract: Novel iridoid derivatives represented by general formula (I): and a vascularization inhibitor having for its active ingredient said derivative are disclosed. This vascularization inhibitor has remarkable vascularization inhibitory effects unaccompanied by serious adverse side effects, which is useful for the treatment and prevention of various diseases accompanied by abnormal acceleration of vascularization.

Abstract: The present invention relates to compounds that are inhibitors of interleukin-1.beta. converting enzyme that have the Formula I, II, or III. ##STR1## This invention also relates to a method of treatment of stroke, inflammatory diseases, septic shock reperfusion injury, Alzheimer's disease, and shigellosis, and to a pharmaceutically acceptable composition that contains a compound that is an inhibitor of interleukin-1.beta. converting enzyme.

Abstract: The invention relates to compounds having at least one vinyl ether group which also contain in the molecule at least one further functional group selected from acrylate, methacrylate, epoxy, alkenyl, cycloalkenyl and vinylaryl groups, to compositions, especially for stereolithography, comprising those vinyl ether compounds, and to a method of producing three-dimensional objects using those compositions.

Abstract: Compounds of the formula I are useful reactive liquid crystal compounds, and can be used in a polymerizable mesogenic mixture, which can be polymerized to an anisotropic polymer. They can be used for the preparation of linear or crosslinked polymers or polymer films for decorative pigments, cosmetics, security applications, active and passive optical elements such as polarizers or retardation films, color filters, scattering displays, adhesives or synthetic resins with anisotropic mechanical properties.

Abstract: An angiogenesis inhibitor comprising, as an active agent, Compound (I) represented by the formula below: ##STR1## where R.sub.1 is a lower alkyl group, an alkoxycarbonyl group or a carboxyl group; andR.sub.2, R.sub.3 and R.sub.4 maybe the same or different and represent a hydrogen atom, a hydroxyl group, a methoxy group or an acetoxy group.This compound has a remarkable angiogenesis inhibition activity, and an angiogenesis inhibitor useful for treatment of various diseases are provided.

Abstract: A process for the production of epoxide ring opening products having a defined residual epoxide oxygen content by reaction of epoxides with nucleophiles in the presence of medium-strength acids is provided. The products have a defined residual epoxide oxygen content of 10 to 80% by weight based on the epoxide. In the process, aliphatic epoxidized olefins or aliphatic epoxidized esters are reacted with nucleophiles in the presence of 1 to 4 g phosphoric acid, phosphorous acid, or hypophosphorous acid per mol epoxide and the ring opening product is directly obtained without neutralization of the catalyst acid.

Abstract: Fungicidal compounds of the formula (I): ##STR1## and stereoisomers thereof, wherein K is oxygen or sulphur; Z is optionally substituted aryl or optionally substituted heteroaryl; X is O, S(O).sub.n, NR.sup.4, CR.sup.1 R.sup.2 CHR.sup.5, CO, CR.sup.1 (OR.sup.2), C.dbd.CR.sup.1 R.sup.2, CHR.sup.1 CHR.sup.2, CR.sup.1 .dbd.CR.sup.2, CHR.sup.1 CR.sup.2 .dbd.CH, C.tbd.C, OCHR.sup.1, CHR.sup.1 O, OCHR.sup.1 O, S(O).sub.n CHR.sup.1 S(O).sub.n CHR.sup.1 O, CHR.sup.1 S(O).sub.n, CHR.sup.1 OSO.sub.2, NR.sup.4 CHR.sup.1, CHR.sup.1 NR.sup.4, CO.sub.2, O.sub.2 C, SO.sub.2 O, OSO.sub.2, CO.CO, COCHR.sup.1, COCHR.sup.1 O, CHR.sup.1 CO, CHOH.CHR.sup.1, CHR.sup.1.CHOH ##STR2## CONR.sup.4, OCONR.sup.4, NR.sup.4 CO, CSNR.sup.4, OCS.NR.sup.4, SCO.NR.sup.4, NR.sup.4 CO.sub.2, NR.sup.4 CS, NR.sup.4 CSO, NR.sup.4 COS, NR.sup.4 CONR.sup.4, S(O).sub.n NR.sup.4, NR.sup.4 S(O).sub.n, CS.sub.2, S.sub.2 C, CO.S, SCO, N.dbd.N, N.dbd.CR.sup.1, CR.sup.1 .dbd.N, CHR.sup.1 CHR.sup.2 CH(OH), CHR.sup.1 OCO, CHR.sup.1 SCO, CHR.sup.1 NR.sup.

Abstract: The invention relates to new, liquid crystalline di(alkoxyglycidyl) compounds of optionally ring substituted 1,4-dibenzoyloxybenzenes in which an alkoxy group consisting of 2 to 8 carbon atoms is incorporated between the glycidyl groups and the 1,4-dibenzoyloxybenzene, a synthesis of 4,4'-di(hexoxyglycidyl)-(1,4-dibenzoyloxybenzene), furthermore epoxy resin mixtures containing the new dialkoxyglycidyl compounds and the epoxy resin mixtures thereof in curable mixtures.

Abstract: The present invention relates to a novel and efficient process for the preparation of 8-hydroxybicyclo[7.3.1]tridec-4-ene-2,6-diyne ring system which is part of the aglycone of esperemicin and to novel cytotoxic antitumor agents having said bicyclic ring system. The present invention also provides a method for treating mammalian malignant tumors by administering to an animal in need of such treatment an antitumor effective amount of a compound of the present invention.

Abstract: The invention relates to new, liquid crystalline di(alkoxyglycidyl) compounds of optionally ring substituted 1,4-dibenzoyloxybenzenes in which an alkoxy group consisting of 2 to 8 carbon atoms is incorporated between the glycidyl groups and the 1,4-dibenzoyloxybenzene, a synthesis of 4,4'-di(hexoxyglycidyl)-(1,4-dibenzoyloxybenzene), furthermore epoxy resin mixtures containing the new dialkoxyglycidyl compounds and the epoxy resin mixtures thereof in curable mixtures.

Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.C*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystlaline S.sub.C* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.

Abstract: The present invention relates to a compound of the formula: ##STR1## wherein A is halogen, N(O)mR.sup.1 R.sup.2, N.sup..sym. R.sup.1 R.sup.2 R.sup.3 .multidot.X.sup..crclbar., S(O)nR.sup.1 or S.sup..sym. (O)mR.sup.1 R.sup.2 .multidot.X.sup..crclbar. where R.sup.1, R.sup.2 and R.sup.3 are each optionally substituted hydrocarbon or heterocyclic group, X.sup..crclbar. is a counter anion; m is an integer of 0 or 1; n is an integer of 0 to 2; R.sup.1 and R.sup.2 may form a nitrogen-containing or a sulfur-containing heterocyclic ring, which may further form a condensed ring, with the adjacent nitrogen atom or sulfur atom, and these nitrogen-containing or sulfur-containing heterocyclic rings may have substituents, Z is O or NR.sup.4 where R.sup.

Abstract: A retroviral protease inhibiting compound of the formulaA--X--Bor a pharmaceutically acceptable salt, prodrug or ester thereof, wherein X is a linking group; A is(1) substituted amino,(2) substituted carbonyl,(3) functionalized imino,(4) functionalized alkyl,(5) functionalized acyl,(6) functionalized heterocyclic or(7) functionalized (heterocyclic)alkyl; and B is(1) substituted carbonyl independently defined as herein,(2) substituted amino independently defined as herein,(3) functionalized imino independently defined as herein,(4) functionalized alkyl independently defined as herein,(5) functionalized acyl independently defined as herein,(6) functionalized heterocyclic independently defined as herein or(7) functionalized (heterocyclic)alkyl independently defined as herein.

Abstract: Adducts of the formula I ##STR1## are described in which R.sup.1 is an e-valent aliphatic radical after the removal of the functional groups, X is --O--or --NH--, R.sup.2 is a d+l-valent carbocyclic-aromatic radical, R.sup.3 is hydrogen or methyl, R.sup.4 is an aliphatic, aromatic, or araliphatic c+l-valent radical, Y is --O--, --S--or --NR.sup.5 --, R.sup.5 is hydrogen or ##STR2## b is an integer from 2 to 15, b is an integer from 1 to 25, c is 1, 2 or 3, d is 1, 2 or 3 and e is 2, 3 or 4.The adducts can be combined with latent curing agents and, if appropriate, other epoxy resins to give adhesives having good stability on storage and high flexibility.

Abstract: Herbicides of formula: ##STR1## in which: n=0,1, 2f=0,1A is chosen from the groups ##STR2## in which: Ar is chosen from the groups ##STR3## B is chosen from optionally substituted C.sub.1 -C.sub.10 alkyl and C.sub.3 -C.sub.

Abstract: A series of novel imidate insecticides distinguished by the general formula ##STR1## in which R.sub.1 is an optionally substituted aryl group in which the substituents are halo, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkylthio, C.sub.3 -C.sub.6 cycloalkyl, nitro, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.5 carboalkoxy, C.sub.1 -C.sub.4 alkylthio, cyano, C.sub.1 -C.sub.4 alkylsulfonyl, C.sub.1 -C.sub.4 haloalkylsulfonyl, C.sub.2 -C.sub.5 alkylcarbonyl, C.sub.2 -C.sub.4 alkyleneoxy, C.sub.1 -C.sub.2 perhaloalkyleneoxy, C.sub.1 -C.sub.4 alkylenedioxy, C.sub.1 -C.sub.3 halo-substituted alkylenedioxy, phenyl, mono-substituted phenyl, pyridyloxy, C.sub.2 -C.sub.4 alkylene, C.sub.2 -C.sub.4 alkenyl, C.sub.3 -haloalkenoxy, and/or amido;R.sub.2 is cyclopropyl or mono- or poly- halo- or methyl-substituted cyclopropyl; andR.sub.

Abstract: Ortho-substituted benzyl carboxylates of the formula ##STR1## where R.sup.1 is alkoxy, alkylthio, halogen or amino, R.sup.2 is alkoxycarbonyl, cyano or CONH.sub.2, R.sup.3 l is hydrogen, halogen, cyano, aryl, aryloxy, a saturated or unsaturated heterocyclic radical, cycloalkyl, or substituted cyclopropyl, X is alkylene, and n is 0 or 1, and fungicides containing these compounds.

Abstract: This invention relates to alkanoic acid compounds having phenyl and thio substituents which are useful as leukotriene antagonists and pharmaceutical compositions containing such compounds. This invention also relates to methods of treating diseases in which leukotrienes are a factor by administration of an effective amount of the above compounds or compositions.

Abstract: The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.These novel monoesters and diesters correspond to the following structural chemical formula (II): ##STR1## in which R.sup.1 and R.sup.2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having from 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R.sup.1 and R.sup.2 cannot be H or ethyl simultaneously. These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.

Abstract: Process for the production of modified triglycerides which contain epoxide groups, secondary hydroxyl groups and ether groups. The invention particularly relates to the production of reaction products of epoxidized triglycerides, for example epoxidized soy oil, with polyfunctional alcohols, for example glycols. The products so prepared are valuable starting materials, particularly for the production of alkyd resins.

Abstract: Room-temperature-curable, non-emissive, flame retardant coating compositions.

Abstract: Novel sulfonate derivatives represented by the formulaR.sub.1 SO.sub.3 CH.sub.2 CO(CH.sub.2).sub.n R.sub.2act to inhibit esterases and chymotripsin and are useful as antilipemic agents, anti-inflammatory agents, immunity controlling agents, etc.

Abstract: Esters of leukotriene A are conveniently prepared by reacting 9-oxo-5,6-trans-epoxynon-7(E)-enoates with 11-triphenylphosphoranylidene undec-6(Z),9(Z)-diene. Esters of leukotriene-A are useful intermediates in the synthesis of naturally occurring leukotrienes, which have been shown to be potent broncho-constricting substances. Novel intermediates to the esters of leukotriene A. 9-oxo-5,6-trans-epoxynon-7(E)-enoates and 7-oxo-5,6-trans-epoxyheptanoates, are disclosed.

Abstract: Reaction of a polyol, acid anhydride and diepoxide, preferably in a single step, yields a prepolymer composition containing a prepolymer containing terminal epoxy and non-terminal, secondary hydroxy groups. Reaction of this prepolymer with a polyisocyanate yields a poly(oxazolidone/urethane) thermoset composition which is essentially free of isocyanurate linkages. The thermoset contains oxazolidone linkages in the backbone of its recurring unit and urethane linkages which are present in a side chain of the unit.

Abstract: A polycarboxylic acid glycidyl ester represented by the formula ##STR1##