Patents Examined by Frances Tischler
-
Patent number: 11987906Abstract: A method of recycling a mixed textile, wherein the method comprises: i) supplying the mixed textile, wherein the mixed textile comprises cellulosic fibers and synthetic fibers, wherein the synthetic fibers comprise at least one synthetic plastic, ii) at least partially depleting the synthetic plastic from the cellulose, and iii) further processing the depleted mixed textile after depleting.Type: GrantFiled: January 14, 2019Date of Patent: May 21, 2024Assignee: LENZING AKTIENGESELLSCHAFTInventors: Christoph Klaus-Nietrost, Richard Herchl, Christian Weilach
-
Patent number: 11987672Abstract: An improved method forms and employs a wax to modify throughputs and melt flow in polymers. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a modified polymer.Type: GrantFiled: December 21, 2020Date of Patent: May 21, 2024Assignee: GreenMantra Recycling Technologies Ltd.Inventor: Domenic Di Mondo
-
Resorbable complex shape memory poly(propylene fumarate) star scaffolds for 4D printing applications
Patent number: 11987668Abstract: In one or more embodiments, the present invention provides am method of making a poly(propylene fumarate-co-succinate) (PPFS) copolymer containing a random incorporation of succinate groups and targetable reduction profiles without the need for three or more monomer units. To achieve this, a time-dependent sonication-promoted zinc/acetic acid reduction of the PPM unsaturated double bonds has been used to create a random PPMS copolymer which may be isomerized into the PPFS equivalent. By changing the sonication time as well as the ratios of acetic acid, zinc, and PPM unsaturated alkenes, partial reduction of the PPM alkenes has been shown to give PPMS products containing varying compositions of succinic and maleate units, which may then be isomerized to the PPFS product.Type: GrantFiled: July 15, 2021Date of Patent: May 21, 2024Assignee: The University of AkronInventors: Matthew Becker, Garrett Fredric Bass -
Patent number: 11981778Abstract: Provided is a method of recycling an additively manufactured object into a reusable thermoplastic polymer, which method in some embodiments may include: (a) providing at least one additively manufactured object produced by stereolithography from a dual cure resin, the object comprising (i) a light polymerized polymer, and (ii) a heat polymerized polymer intermixed with said light polymerized polymer; (b) comminuting the object to produce a particulate material therefrom; (c) contacting the particulate material to a polar, aprotic solvent for a time and at a temperature sufficient to extract the heat polymerized polymer from the particulate material into said solvent, leaving residual particulate material comprising said light polymerized polymer in solid form; (d) separating the residual particulate material from said solvent; and then (e) separating the heat polymerized polymer from said solvent to provide a reusable thermoplastic polymer material in solid form.Type: GrantFiled: January 13, 2021Date of Patent: May 14, 2024Assignee: Carbon, Inc.Inventors: Kai Chen, Benjamin Huan Yang
-
Patent number: 11970573Abstract: Bifuran-modified polyester, polyethylene-terephthalate-co (2,2?-bifuran-5,5?-dicarboxylate), prepared by esterifying or transesterifying a diacid component comprising from 2 to 10 mole percent 2,2?-bifuran-5,5?-dicarboxylate and a diol component with a catalyst compound comprising metal present in an amount of from about 10 to about 450 ppm and polycondensation to form the polyester wherein the polyester has an inherent viscosity of at least 0.5 g/dL, a glass transition temperature (Tg) of 82° C. or more, a semicrystalline melting peak (Tm) with ?Hf equal to or greater than 5 J/g on the second heating ramp, and melting temperature (Tm) between 229° C. and 246° C. Reinforced compositions and shaped articles comprising bifuran-modified polyethylene terephthalate and methods of their production are also disclosed.Type: GrantFiled: November 13, 2019Date of Patent: April 30, 2024Assignees: ExxonMobil Chemical Patents Inc., Virginia Tech Intellectual Properties, Inc.Inventors: Monica Lotz, S. Richard Turner, Hans Eliot Edling, Kapil Kandel, Michael Salciccioli, Stephen Cohn, Alan A. Galuska, Javier Guzman, Edward E. Paschke
-
Patent number: 11970592Abstract: The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer and a hard coating layer, and a flexible display panel including the same. Since the window cover film of the present invention has high surface hardness, flexibility, the excellent bending properties, the window cover film may be restored to the original form without permanent deformation and/or damage of the hard coating layer and the window cover film even though a predetermined deformation is repeated.Type: GrantFiled: September 28, 2020Date of Patent: April 30, 2024Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.Inventors: Jong Nam Ahn, Keon Hyeok Ko, Byoung Sun Ko, Hye Jin Kim, Je Seung Park, Jin Su Park, A Ran Hwang
-
Patent number: 11965069Abstract: A heat-shrinkable polyester film made of a polyester-forming resin composition includes a recycled material, and has an exothermic crystallization peak and an endothermic melting peak which are determined via differential scanning calorimetry, and which satisfy relationships of T2?T1?68° C. and T3?T2?78° C., where T1 represents an onset point of the exothermic crystallization peak, T2 represents an end point of the exothermic crystallization peak and an onset point of the endothermic melting peak, and T3 represents an end point of the endothermic melting peak. A method for manufacturing the heat-shrinkable polyester film is also disclosed.Type: GrantFiled: February 5, 2021Date of Patent: April 23, 2024Assignee: FAR EASTERN NEW CENTURY CORPORATIONInventors: Li-Ling Chang, Yow-An Leu, Ting-Yu Lin, Ching-Chun Tsai, Wen-Yi Chang
-
Patent number: 11958980Abstract: A chemically modified precipitated silica characterised by the presence of alkyl moieties chemically bound to the silica and a process for its manufacture.Type: GrantFiled: December 20, 2018Date of Patent: April 16, 2024Assignee: RHODIA OPERATIONSInventors: Emmanuelle Allain Najman, Pascaline Garbey, Cédric Feral-Martin, Laure Bertry, Laurent Guy, Thomas Chaussee, Stéphanie Croyeau
-
Patent number: 11958985Abstract: A heat sealable polyester film and a method for manufacturing the same are provided. The heat sealable polyester film is made from a recycled polyester material. The heat sealable polyester film includes a base layer and a heat sealable layer formed on at least one surface of the base layer. The heat sealable layer is formed from a first polyester composition. A main component of the first polyester composition is regenerated polyethylene terephthalate and the first polyester composition further includes at least one of 1,4-butanediol, isophthalic acid, neopentyl glycol, and polybutylene terephthalate. A heat sealing temperature of the heat sealable polyester film ranges from 120° C. to 230° C.Type: GrantFiled: March 15, 2021Date of Patent: April 16, 2024Assignee: NAN YA PLASTICS CORPORATIONInventors: Wen-Cheng Yang, Te-Chao Liao, Chia-Yen Hsiao, Ching-Yao Yuan
-
Patent number: 11945918Abstract: This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.Type: GrantFiled: December 28, 2021Date of Patent: April 2, 2024Assignee: Novoloop, Inc.Inventors: Jia Yun Yao, Yu Wen Wang, Tapaswy Muppaneni, Ruja Shrestha, Jennifer Le Roy, Garret D. Figuly
-
Patent number: 11939424Abstract: The present invention is a composition for liquid crystal polymer synthesis comprising an alicyclic dicarboxylic acid or its derivative (e.g., 1,4-cyclohexanedicarboxylic acid (CHDA)); an aromatic diol (e.g., hydroquinone (HQ)); an aromatic monocarboxylic acid having 7 to 10 carbon atoms and containing a hydroxyl group (e.g., 4-hydroxybenzoic acid, (HBA)); and an aromatic monocarboxylic acid having 11 to 20 carbon atoms and containing a hydroxyl group (e.g., 6-hydroxy-2-naphthalenecarboxylic acid (HNA)), and a liquid crystal polymer for electrical/electronic products, a polymer resin composition, and a molded product using the same.Type: GrantFiled: May 29, 2018Date of Patent: March 26, 2024Assignee: SK Chemicals Co., Ltd.Inventors: Kwang Sei Oh, Ji-Hoon Kim, Jong-In Lee, Sun-Hee Lee, Myung-Se Lee
-
Patent number: 11939473Abstract: A thermoplastic vulcanizate composition comprises: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane composition comprising a migratory siloxane polymer physically dispersed in a first thermoplastic material and (iv) a second polysiloxane composition comprising a non-migratory, siloxane polymer bonded to a second thermoplastic material.Type: GrantFiled: December 7, 2018Date of Patent: March 26, 2024Assignee: Celanese International CorporationInventors: Prashant Bhadane, Chad Michael Houghton, Oscar Oansuk Chung, Eric Paul Jourdain, Hang Dong
-
Patent number: 11939495Abstract: An oxygen-absorbing film having an oxygen-absorbing adhesive agent layer including a cured oxygen-absorbing adhesive agent resin composition, wherein the oxygen-absorbing adhesive agent layer has at least two glass transition temperatures, and wherein the lowest glass transition temperature among the glass transition temperatures is lower than 0° C. The cured oxygen-absorbing adhesive agent resin composition preferably includes: (A) an oxygen-absorbing polyester resin having a glass transition temperature of ?20 to 10° C. and (B) a saturated polyester resin having a glass transition temperature of ?10° C. or lower.Type: GrantFiled: August 6, 2020Date of Patent: March 26, 2024Assignee: Toyo Seikan Group Holdings, Ltd.Inventors: Yoichi Tadokoro, Yoichi Ishizaki, Yoshihiro Ohta
-
Patent number: 11939425Abstract: The present invention relates to a polyester resin. The polyester resin is useful for bottles, sheets, multilayer sheets, stretched films and fiber applications due to excellent heat resistance and transparency, and in particular, the polyester resin has little deterioration of physical properties such as yellowing, etc., during processing. A process for making the polyester resin includes an esterification reaction between a dicarboxylic acid that includes terephthalic acid and a diol that includes isosorbide in the presence of a catalyst, followed by a polycondensation reaction on a product of the esterification reaction. In some embodiments, an initial mixing ratio of the dicarboxylic acid and the diol is between 1:1.02 and 1:1.04.Type: GrantFiled: September 23, 2020Date of Patent: March 26, 2024Assignee: SK Chemicals Co., Ltd.Inventors: Yoo Jin Lee, Su-Min Lee, Sung-Gi Kim, Min-Young Han, Dong-jin Han
-
Patent number: 11932776Abstract: The present invention provides solvent-based compostable cold seal release lacquers for use in packaging structures. The lacquers of the invention comprise resins, such as polyamide resins, comprising greater than 90% biobased carbon, generally prepared from renewable sources, e.g., plants such as rice. The present invention also provides the use of the inventive compostable lacquers as cold seal release lacquers in cold seal packaging, along with eco-friendly packaging film, etc., and has the potential to make the cold seal packaging fully compostable.Type: GrantFiled: June 30, 2021Date of Patent: March 19, 2024Assignee: Sun Chemical CorporationInventors: Craig Boyd, Gina Chavez, Mackensey Fagan
-
Patent number: 11926700Abstract: Biorenewable polyesters and polyester copolymers derived from camphoric acid, aromatic dicarboxylic acid and aliphatic diols and methods of making those copolyesters and articles comprising copolyesters are disclosed. The disclosed biorenewable copolyesters may can have a Mn of from about 5,000 Da to about 500,000 Da. Also disclosed are preparation methods of various monomers e.g., cis-1,4-anhydroerythritol and bis(2-hydroxyethyl) camphorate. The disclosed biorenewable polyesters and polyester copolymers can be used for production of various articles utilizing a conventional polyesters or polyester copolymers, to replace, in part or in whole, a conventional non-biorenewable polyesters or polyester copolymers.Type: GrantFiled: December 27, 2022Date of Patent: March 12, 2024Assignee: University of Florida Research Foundation, Inc.Inventors: Stephen A. Miller, Olivier Nsengiyumva
-
Patent number: 11912862Abstract: Polyester resin compositions that are desirable for use in solvent-borne metal packaging and coil coating applications, the composition comprising: (a) a polyester comprising residues of: (i) terephthalic acid and isophthalic acid; and (ii) a blend of at least two glycols; wherein the amount of terephthalic acid is 15 mole percent to 20 mole percent and the amount of isophthalic acid is 80 to 85 mole percent wherein the total amount of terephthalic acid and isophthalic acid in the resin equals 100 mole percent; and (b) a non-aqueous solvent; wherein the composition remains clear at a temperature of 20-30° C. for at least 120 days.Type: GrantFiled: February 5, 2020Date of Patent: February 27, 2024Assignee: Eastman Chemical CompanyInventors: Katelyn Rose Houston, Jeremy Richard Lizotte, Jessica Nicole Aldred, John Thorton Maddox
-
Patent number: 11912819Abstract: Semicrystalline polyethylene-2,2?-bifuran-5,5?-dicarboxylate (PEBF) homopolyester or copolyester with up to 5 mole percent isophthalate or up to 2.7 mole percent terephthalate, based on the diacid component, or up to 2.5 mole percent 1,4-cyclohexanedimethanol (CHDM), based on the diol component, prepared by esterifying or transesterifying the diacid and the diol components with a catalyst including about 10 to about 50 ppm wt metal, and polycondensation, wherein the bifuran polyester has an intrinsic viscosity of at least 0.4 g/dL and a semicrystalline melting peak (Tm) with ?Hf equal to or greater than 5 J/g on the second heating ramp.Type: GrantFiled: November 13, 2019Date of Patent: February 27, 2024Assignees: ExxonMobil Chemical Patents, Inc., Virginia Tech Intellectual Properties, Inc.Inventors: Monica Lotz, Kapil Kandel, Michael Salciccioli, Stephen Cohn, Alan A. Galuska, Javier Guzman, S. Richard Turner, Hans Eliot Edling, Edward E. Paschke
-
Patent number: 11912837Abstract: The present disclosure provides a thin film including a first thermoplastic polyolefin (TPO) elastomer which is anhydride-grafted. The present disclosure further provides a method for manufacturing the thin film, a laminated material and a method for adhesion.Type: GrantFiled: August 2, 2021Date of Patent: February 27, 2024Assignee: SAN FANG CHEMICAL INDUSTRY CO., LTD.Inventors: Chih-Yi Lin, Kuo-Kuang Cheng, Chi-Chin Chiang, Wen-Hsin Tai, Ming-Chen Chang
-
Patent number: 11912827Abstract: A poly(imide-ester-amide) copolymer and an optical film are provided. The poly(imide-ester-amide) copolymer includes imide bonds, ester bonds, and amide bonds. A molar ratio of the imide bonds, the ester bonds, and the amide bonds is 40 to 80:10 to 30:5 to 30. The imide bonds are derived from an aromatic diamine monomer and a tetracarboxylic dianhydride monomer. The amide bonds are derived from an aromatic dicarboxylic acid dichloride monomer and an aromatic diamine monomer or is derived from the aromatic dicarboxylic acid dichloride monomer and an alkoxysilane containing an amine group or an isocyanate group.Type: GrantFiled: February 5, 2020Date of Patent: February 27, 2024Assignee: Daxin Materials CorporationInventors: Guan-Ping Chen, Min-Tzu Kao