Material Contains A Group Ivb Metal Atom (ti, Zr, Hf) Patents (Class 528/279)
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Patent number: 12234357Abstract: Copolymer blends comprising a first copolymer and a second copolymer, wherein the first and second copolymers each independently comprise units of A and B as defined herein.Type: GrantFiled: August 16, 2019Date of Patent: February 25, 2025Assignee: BIOME BIOPLASTICS LIMITEDInventors: Paul Robert Mines, Paul William Law, Thomas James Farmer, James William Comerford, Krisztina Kovacs-Schreiner
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Patent number: 11767427Abstract: The present invention provides a polycarbonate alloy including the following components in parts by weight: 50 parts to 80 parts of a polycarbonate; 1 part to 50 parts of a crystalline polyester; 0.01 part to 4 parts of a maleic anhydride polymer; and 0.01 part to 4 parts of a metal phosphate. The polycarbonate alloy of the present invention has advantages of good alloy stability, and a continuous and uniform distribution of the crystalline polyester in the alloy.Type: GrantFiled: January 10, 2019Date of Patent: September 26, 2023Assignee: KINGFA SCI. & TECH. CO., LTD.Inventors: Peitao Wang, Yin Cen, Xianbo Huang, Nanbiao Ye, Junwei Ai, Jun Wu, Xiangmao Dong, Chao Ding
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Patent number: 11390774Abstract: A curable coating composition includes: (a) a polymer including at least two active methylene functional groups; (b) a polyisocyanate crosslinker; and (c) a transition metal catalyst. Substrates at least partially coated with these coating compositions are further disclosed. Methods for preparing the coating are further disclosed. Multi-layer coatings including these coating compositions are further disclosed.Type: GrantFiled: September 9, 2016Date of Patent: July 19, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Jonathan P. Breon, Jun Deng, Linlin Li, John E. Schwendeman, Edward R. Millero, Jr.
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Patent number: 11192977Abstract: The present invention relates to poly(alkylene terephthalate) polyesters having long poly-methylene segments and their use in a wide variety of applications. Particularly, said PAT polyesters are used in biotechnological or biomedical applications, wherein the extent of cell adhesion, cell growth or cell interaction, in particular endothelial cells, depends on the odd or even number of carbon atoms in the aliphatic segments. Also provided are methods for the preparation of poly(alkylene terephthalates) (PAT) having long poly-methylene segments, wherein the bifunctional monomers, in particular terephthalic acid (or a derivative thereof) and an aliphatic diol, are dissolved in a solvent and the polycondensation reaction takes place in solution.Type: GrantFiled: March 23, 2017Date of Patent: December 7, 2021Assignee: UNIVERSITEIT GENTInventors: Elena Diana Giol, Peter Dubruel, Sandra Van Vlierberghe
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Patent number: 11186680Abstract: A method for preparing a biodegradable polyester elastomer includes a following steps comprising: dissolving a predetermined amount of titanium dioxide in an aqueous mixture of sulphuric acid, DI water, and ethanol to form a first solution; refluxing the first solution in a silicone oil bath and a stirring speed of 300-450 rpm at a temperature of 90-100° C. to form a second solution; preparing a solid superacid catalyst by drying, grinding and calcining sulfated titania and using this catalyst to produce a biodegradable polyester elastomer.Type: GrantFiled: April 24, 2020Date of Patent: November 30, 2021Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Jane Wang, Ken-Sen Chou, Sung-Nien Hsu
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Patent number: 11059837Abstract: A catalyst for preparing polyester resins from monobasic or polybasic acids and polyhydric alcohols, comprising a Magnesium compound which has a bonding portion represented by formula —Mg—O—(CR12)a-Q, wherein Q is a Nitrogen or Sulfur and a is an integer from 1 to 4, is disclosed. Catalyst may further comprise Titanium compounds, for example titanium alkoxide, wherein titanium diisopropoxy bistriethanolaminate is particularly preferable from the viewpoint of reactivity and coloring property. Catalyst is capable of shortening production time for polyester resins.Type: GrantFiled: June 20, 2017Date of Patent: July 13, 2021Assignee: NITTO KASEI CO., LTD.Inventors: Hiroyuki Kaneshiro, Mika Araki
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Patent number: 10815334Abstract: There is provided a polyester resin including a 2,5-furandicarboxylic acid unit and a cyclohexanedimethanol unit in a main chain, in which the polyester resin is high in molecular weight, has heat resistance and hydrolysis resistance, and is excellent in mechanical properties and melt heat stability. There is also provided a method for producing a polyester resin having the above characteristics. A polyester resin including a 2,5-furandicarboxylic acid unit and a 1,4-cyclohexanedimethanol unit as main constituent components, wherein the following (I) and (II) are satisfied: (I) the reduced viscosity (?sp/c) is 0.7 dL/g or more; and (II) the sum of a cyclovinylidene terminal and a methylcyclohexene terminal is 80 ?eq/g or less.Type: GrantFiled: March 5, 2018Date of Patent: October 27, 2020Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Rie Shirahama, Tatsuya Hitomi, Atsushi Kasai
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Patent number: 10329444Abstract: A conductive ink may include a nickel component, a polycarboxylic acid component, and a polyol component, the polycarboxylic acid component and the polyol component being reactable to form a polyester component. The polyester component may be formed in situ in the conductive ink from a polyol component and a polycarboxylic acid component. The conductive ink may include a carbon component. The conductive ink may include an additive component. The conductive ink may include nickel flakes, graphene flakes, glutaric acid, and ethylene glycol. The conductive ink may be printed (e.g., screen printed) on a substrate and cured to form a conductive film. A conductive film may include a nickel component and a polyester component.Type: GrantFiled: December 27, 2013Date of Patent: June 25, 2019Assignee: Printed Energy Pty LtdInventors: Vera N. Lockett, Alexandra E. Hartman, John G. Gustafson, Mark D. Lowenthal, William J. Ray
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Patent number: 10081701Abstract: An aspect of the present invention relates to a composition, which is a composition for a magnetic recording medium and comprises an isocyanate compound in the form of an adduct of a polyhydroxyl compound having one or more aromatic carbon rings and three or more hydroxyl groups per molecule with a polyisocyanate having two or more isocyanate groups per molecule.Type: GrantFiled: August 29, 2014Date of Patent: September 25, 2018Assignee: FUJIFILM CorporationInventors: Toshihide Aoshima, Kazutoshi Katayama
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Patent number: 9983496Abstract: Methacrylate resins of at least one bio-based methacrylate monomer, where the monomer includes a rosin or isosorbide moiety obtained from natural sources, can be used in toner, carrier coating or both.Type: GrantFiled: December 1, 2016Date of Patent: May 29, 2018Assignee: Xerox CorporationInventors: Richard P. N. Veregin, Guerino G. Sacripante
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Patent number: 9546189Abstract: A surface modified lithium titanate and preparation method thereof is provided. In the surface modified lithium titanate, the deactivating groups distributed on the surface of the lithium titanate are —O—P—RR?R?, —O—P—(OR)R?R?, —O—P—(OR)(OR?)R?, and —O—P—(OR)(OR?)(OR?), where R, R? and R? are identical or different C1˜C8 alkyl or alkenyl groups. The deactivating groups are bonded to the lithium titanate via a bond or a bridge. The exemplary surface modified lithium titanate can effectively lower its catalytic activity, reduce the gassing of lithium ion batteries, and therefore improve the high temperature storage and high temperature cycle performance of lithium titanate batteries. The exemplary preparation method is simple, has great repeatability, a low cost, low pollution to the environment, and is suitable for industrial production.Type: GrantFiled: November 5, 2013Date of Patent: January 17, 2017Assignee: NINGDE AMPEREX TECHNOLOGY LTD.Inventors: Chuanmiao Yan, Kaifu Zhong
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Patent number: 9527954Abstract: A process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone, and having a number average molecular weight of at least 25,000, includes a transesterification step, a polycondensation step, a drying and/or crystallizing step, and a step where the polymer is subjected to post condensation conditions, and to a polyester-containing bottle or film or fiber-containing woven or non-woven object made from melt-processing poly(ethylene-2,5-furandicarboxylate), where the poly(ethylene-2,5-furandicarboxylate) is obtainable by the process of the invention.Type: GrantFiled: October 24, 2012Date of Patent: December 27, 2016Assignee: Furanix Technologies B.V.Inventors: Laszlo Sipos, Gerardus Johannes Maria Gruter, Jeffrey John Kolstad, Matheus Adrianus Dam
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Patent number: 9409852Abstract: The invention provides a compound of the formula: wherein Ar is selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; Ar? is selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; R is an alkylene radical having 2-20 carbon atoms; and n=1-20. The compounds of the invention are used with polymer resins to enhance their gas barrier properties.Type: GrantFiled: September 27, 2013Date of Patent: August 9, 2016Assignee: ETHOX CHEMICALS, LLCInventor: James T Tanner
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Patent number: 9394631Abstract: A core-sheath composite fiber includes a core component including an easily alkaline elutable polyester with a main repeating unit constructed of ethylene terephthalate containing 2.0 to 5.5 mol % of an isophthalic acid component containing a metal sulfonate group relative to a total acid component and 3.0 to 6.0 mol % of an adipic acid component relative to the total acid component, and a sheath component including a polyamide.Type: GrantFiled: August 27, 2012Date of Patent: July 19, 2016Assignee: Toray Industries, Inc.Inventors: Junichi Mizota, Takashi Ida, Hidetoshi Takanaga
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Patent number: 9315653Abstract: A polyester resin composition including: a polyester resin; a titanium compound derived from a catalyst; and a phosphorous compound, wherein formula (1): 0.10<Ti/P<0.20 is satisfied wherein Ti/P represents a mass content ratio of titanium element to phosphorus element in the polyester resin composition, and formula (2): 0.0090<?IV?0.0185 (dL/g/hr) is satisfied wherein ?IV represents an increase in an intrinsic viscosity of the polyester resin composition per hour under conditions of 225° C. and 50 Pa.Type: GrantFiled: March 24, 2014Date of Patent: April 19, 2016Assignee: FUJIFILM CorporationInventor: Ryuta Takegami
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Patent number: 9260802Abstract: A method for forming a biodegradable aliphatic polyester suitable for use in fibers is provided. In one embodiment, for example, an aliphatic polyester is melt blended with an alcohol to initiate an alcoholysis reaction that results in a polyester having one or more hydroxyalkyl or alkyl terminal groups. By selectively controlling the alcoholysis conditions (e.g., alcohol and polymer concentrations, catalysts, temperature, etc.), a modified aliphatic polyester may be achieved that has a molecular weight lower than the starting aliphatic polyester. Such lower molecular weight polymers also have the combination of a higher melt flow index and lower apparent viscosity, which is useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.Type: GrantFiled: August 28, 2013Date of Patent: February 16, 2016Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Aimin He, James H. Wang
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Patent number: 9249319Abstract: The present invention relates to a liquid additive for etching silicon nitride and silicon oxide layers, a metal ink including the same for forming silicon solar cell electrodes and a method for manufacturing silicon solar cell electrodes. More particularly, it relates to a liquid additive including metal nitrate, metal acetate, or hydrates thereof and a metal ink for forming silicon solar cell electrodes, mixed with the liquid additive and a metal. Further, it relates to a method for manufacturing silicon solar cell electrodes comprising a one-step non-contact printing for etching of a silicon nitride layer or silicon oxide layer and forming electrodes.Type: GrantFiled: June 27, 2011Date of Patent: February 2, 2016Assignee: Korea University Research and Business FoundationInventors: Joo-Youl Huh, Hyun-Gang Kim, Bo-Mook Chung, Sung-Bin Cho
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Patent number: 9200110Abstract: The present invention is directed to a heat-resistant polyester blow-molded article made of a polyester resin composition containing 0.035 to 1.75 equivalent/ton of a hindered phenol structural unit and containing at least one selected from the group consisting of antimony compounds as a polymerization catalyst, the cyclic trimer content thereof being less than or equal to 0.5% by mass, the acetaldehyde content thereof being less than or equal to 50 ppm and the intrinsic viscosity thereof being 0.68 to 0.90 dL/g. The present invention enables efficient production of a molded article excellent in transparency and heat-resistant dimensional stability, in particular a heat-resistant blow-molded article. Moreover, according to the present invention, there are provided a polyester resin composition which is excellent in long-term continuous moldability and hardly stains a mold and a molded article prepared therewith, and a method for molding a polyester blow-molded article using the polyester resin composition.Type: GrantFiled: April 5, 2013Date of Patent: December 1, 2015Assignee: TOYOBO CO., LTD.Inventors: Keiichiro Togawa, Hiroshi Shibano
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Patent number: 9187595Abstract: There is provided a method of preparation for a biodegradable co-polyester, the method including: forming an oligomer through a primary esterification reaction between a hydroxy group of an aliphatic dihydroxy compound and a carboxylic group of an aliphatic dicarboxylic acid compound; performing a secondary esterification reaction between the formed oligomer and an aromatic dicarboxylic acid compound; and performing a polycondensation reaction in a vacuum, in which sequentially divided addition of the aromatic dicarboxylic acid compound is performed and the weight ratio of the aromatic dicarboxylic acid compound with respect to the oligomer for each time of the sequentially divided addition is from 2:8 to 5:5. The method efficiently increases a solubility of aromatic dicarboxylic acid, thereby increasing a reaction rate and reducing a side reaction.Type: GrantFiled: May 13, 2013Date of Patent: November 17, 2015Assignee: SAMSUNG FINE CHEMICALS CO., LTDInventors: Jong Pil Chun, Ye Jin Kim, Ki Chull Yun, Min Kyoung Kim
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Patent number: 9175127Abstract: The present invention relates to a method for producing an aliphatic polyester having an increased molecular weight comprising the steps of: (i) introducing into a mixing tank equipped with an inlet for injecting a diisocyanate an aliphatic polyester prepolymer which has a number average molecular weight of 5000 or higher and has terminal hydroxyl groups and in which at least one acid component is a succinic acid compound, wherein the aliphatic polyester prepolymer is introduced above the position of the inlet and wherein the aliphatic polyester prepolymer is melted at a temperature not lower than a melting point of the prepolymer and is in a liquid state, (ii) injecting a diisocyanate into the aliphatic polyester prepolymer, wherein the amount of diisocyanate is equivalent to between one tenth and two times the amount of the hydroxyl groups in the aliphatic polyester prepolymer; and (iii) reacting the aliphatic polyester prepolymer with the diisocyanate.Type: GrantFiled: October 17, 2012Date of Patent: November 3, 2015Assignee: SHOWA DENKO K.K.Inventors: Yasushi Ichikawa, Hideharu Kimura, Akira Ishii
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Patent number: 9109110Abstract: A process of preparing a modified polyalkylene terephthalate by melt polycondensation comprising reacting an alkylene diol and polyethylene terephthalate, wherein polymerization occurs in the presence of a catalyst complex formed by reaction of tetra(alkyl) titanate and a compound selected from phosphorus-containing compounds, nitrogen-containing compounds, boron-containing compounds, and combinations thereof.Type: GrantFiled: July 25, 2013Date of Patent: August 18, 2015Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Husnu Alp Alidedeoglu, Ganesh Kannan, Tianhua Ding, Tukaram Gunale
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Patent number: 9080091Abstract: It is provided that a polyester composition for electrical/electronic part-sealing material having melt fluidity, initial peel strength, and initial dielectric breakdown strength that are required for electrical/electronic part-sealing material while also having excellent heat resistance, resistance to thermal aging, and durability with respect to hot-cold cycling. A polyester resin composition for electrical/electronic part-sealing material, comprising, as a main component, a copolymer polyester elastomer containing 50 weight % or more and 70 weight % or lower of an aliphatic polycarbonate segment and having 6 equivalents/106 g or more and 50 equivalents/106 g or lower of terminal vinyl groups.Type: GrantFiled: February 21, 2012Date of Patent: July 14, 2015Assignee: TOYOBO CO., LTD.Inventors: Junko Sakai, Kenji Shiga
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Patent number: 9045594Abstract: A method for preparing high shrinkage PTT copolyester, includes adding starting raw materials into a reaction kettle and adding an esterification catalyst to carry out esterification reaction at 220° C.-260° C. under 0.05-0.30 MPa and completing the reaction when there being no water produced; and adding polymerization catalyst into the reaction system and carrying out the polymerization reaction at 240° C.-280° C. to get polytrimethylene terephthalate. The starting raw materials consists of 1,3-propylene glycol, terephtalic acid, a third monomer, a forth monomer and a fifth monomer. Polytrimethylene terephthalate prepared by the invention shows good spinning behaviour, of which the crystallization speed is noticeably lower than that of conventional polytrimethylene terephthalate, thus, fibers made of them has high boiling water shrinkage rate and ideal shrink property.Type: GrantFiled: February 23, 2011Date of Patent: June 2, 2015Assignee: Jiangsu Zhonglu Technology Development Co., LtdInventor: Shuchang Bian
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Publication number: 20150141584Abstract: The present invention generally concerns polyester compounds derived from renewable monomer materials and manufacturing process thereof. The invention further pertains to polyester blends presenting improved maximum elongation characteristic.Type: ApplicationFiled: December 28, 2012Publication date: May 21, 2015Applicant: Natura Cosméticos S.A.Inventors: Christopher Saywell, Shaomin Mai, Clarissa Capelas Romeu, Julio Cesar Legramanti Neves
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Publication number: 20150079867Abstract: This invention relates to a polyester characterised by noteworthy workability properties even when mixed with other polymers and being capable of being converted into products such as for example films, fibres, non-woven fabrics, sheets, moulded, thermoformed, blow-moulded and expanded articles, characterised by great toughness and high elongation at failure values. This invention also relates to processes for production of the said polyesters.Type: ApplicationFiled: April 11, 2013Publication date: March 19, 2015Applicant: Novamont S.p.A.Inventors: Tiziana Milizia, Roberto Vallero
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Publication number: 20150073117Abstract: Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions through an in situ phosphorus containing titanium based catalyst and articles made from the compositions.Type: ApplicationFiled: November 11, 2014Publication date: March 12, 2015Inventors: Husnu Alp ALIDEDEOGLU, Hareesh Shamroa DESHPANDE, Belinda DUCKWORTH, Tukaram GUNALE, Darshan JAYANNA, Ganesh KANNAN
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Publication number: 20150065678Abstract: The present invention relates to a method for the production of aliphatic polyesters in a two-step method. There are thereby added, in a first step, to a precondensate of an aliphatic dicarboxylic acid or to a mixture of aliphatic dicarboxylic acids and an aliphatic dialcohol or to a mixture of aliphatic dialcohols, further monomeric components, i.e. further aliphatic dicarboxylic acids and also a further aliphatic dialcohol, a polyester prepolymer being obtained. In a further step, polycondensation of the prepolymer obtained in the first step is effected.Type: ApplicationFiled: December 10, 2012Publication date: March 5, 2015Applicant: UHDE INVENTA-FISCHER GMBHInventors: Christopher Hess, Hans Staudenmayer
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Patent number: 8969506Abstract: An amorphous copolyester comprising the reaction product of: (a) a monomer of formula I wherein R1, R2, R3, and R5 are each independently hydrogen or a C1-3 alkyl group, a is 0-1, b is 0-4, c is 0-4 and d is 0-3, and each R4 is independently hydrogen or a C1-3 alkyl group; (b) a virgin monomer selected from terephthalic acid, a di(C1-3 alkyl) terephthalate, and combinations thereof, and (c) 1,4-cyclohexane dimethanol; wherein the residue of monomer (a) is present in an amount from 7 to less than 12 mole % of the copolyester based on moles of repeat units in the polyester; and the copolyester has a glass transition temperature of at least 107° C., an intrinsic viscosity of at least 0.7 dl/g, and a molded sample has a Notched Izod value of at least 290 J/m determined in accordance with ASTM D256.Type: GrantFiled: February 15, 2012Date of Patent: March 3, 2015Assignee: Saudi Basic Industries CorporationInventors: Navinchandra S. Asthana, Ganesh Kannan
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Publication number: 20150057424Abstract: The present invention relates to copolymers, in particular poly(butylenesuccinate-co-furanoate) (PBSF) copolymers, which have advantageous mechanical properties, and also to polymeric compositions comprising them. It also relates to a process for preparing these polymers.Type: ApplicationFiled: March 29, 2013Publication date: February 26, 2015Inventors: Nicolas Jacquel, Rene Saint-Loup, Francoise Fenouillot-Rimlinger, Jean-Pierre Pascault, Alain Rousseau
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Publication number: 20150057425Abstract: The present invention relates to a process for recovering succinic acid in crystal form from a fermentation broth comprising succinic acid, comprising the steps of a) bringing the fermentation broth to a pH of between 1 and 4, b) crystallizing the succinic acid from the fermentation broth to form succinic acid crystals, c) dissolving the succinic acid crystals at a temperature of between 30 and 90 degrees Celsius to form an aqueous solution comprising dissolved succinic acid, d) crystallizing the succinic acid from the solution to recover succinic acid in crystal form. The invention further relates to succinic acid in crystal form, comprising a sugar content of 1 to 100 ppm and a nitrogen content of 1 to 80 ppm.Type: ApplicationFiled: October 30, 2014Publication date: February 26, 2015Inventors: Maarten Job VAN DE GRAAF, Fredoen VALIANPOER, Guillaume FIEY, Loic DELATTRE, Elisabeth Agnes Michele SCHULTEN
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Patent number: 8962789Abstract: A method is disclosed herein for the preparation of modified poly (1,3-propanediol terephthalate). The method comprises adding linear polyester with average molecular weight of 800˜3000 and polyethylene glycol with average molecular weight of 200˜2000 into polymerization monomers before polymerization reaction, wherein the linear polyester is a polymer obtained by reaction of C3 ˜C10 straight chain aliphatic dicarboxylic acid or 1,4-cyclohexane diformic acid with C2 ˜C10 straight chain aliphatic diol or 1,4-cyclohexane diformic acid; the linear polyester is 0.5%˜6% of the mass of polymerization monomers; the polyethylene glycol is 0.5%˜8.5% of the mass of polymerization monomers.Type: GrantFiled: February 24, 2011Date of Patent: February 24, 2015Assignee: Jiangsu Zhonglu Technology Development Co., LtdInventor: Shuchang Bian
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Publication number: 20150051366Abstract: Disclosed herein are a novel complex metal oxide catalyst, and a method of preparing polyester using the same. The metal-bound compound of the present invention has a higher catalytic activity as compared to an antimony catalyst and existing titanium catalysts to be easily synthesized and stabilized, have a sufficient polymerization activity even with a small amount, and be used as an environmentally friendly catalyst for polyester polymerization. In addition, when preparing polyester by using the complex metal oxide of the present invention, since catalytic activity caused by phosphorus (P) which is a thermal stabilizer used to decrease pyrolysis at the time of hot-melting and molding is not deteriorated, an excessive amount of phosphorus may be used as compared to the related art, such that pyrolysis less occurs, whereby the yellowing phenomenon may be decreased and high viscosity may be maintained.Type: ApplicationFiled: April 10, 2013Publication date: February 19, 2015Inventors: Young Keun Yang, Seung Woong Yoon, Yong Taek Hwang, Kyung Ho Lim, Jong Ho Bae
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Publication number: 20150045530Abstract: A catalyst solution for polyester production includes a titanium compound (A) and an organic solvent (B), wherein particle diameter of particles included in the solution, which is measured by dynamic light scattering method and is subsequently determined by cumulant analysis method, is not greater than 200 nm.Type: ApplicationFiled: May 15, 2012Publication date: February 12, 2015Applicant: Toray Industries, Inc.Inventors: Masataka Makino, Yusuke Tojo, Sadanori Kumazawa
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Patent number: 8945695Abstract: PET resins containing a small amount of a blue dye and/or further containing inorganic particles of Fe3O4 or BaSO4 are synthesized in the presence of an inorganic Ti—Mg catalyst employed as a polycondensation catalyst and a phosphorus stabilizer during a polycondensation process, and the resultant PET resins are free of yellowish appearance and reduced regenerated acetaldehyde and cyclic oligomers after processed so that PET bottle preforms if made of the PET resins can facilitate reduction in aging time thereby to improve the product yield of the bottle preforms and to save the stock space for storing the bottle preforms.Type: GrantFiled: August 8, 2008Date of Patent: February 3, 2015Assignee: Nan Ya Plastics CorporationInventor: Zo-Chun Jen
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Patent number: 8946345Abstract: Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions through an in situ phosphorus containing titanium based catalyst and articles made from the compositions.Type: GrantFiled: March 29, 2012Date of Patent: February 3, 2015Assignee: Saudi Basic Industries CorporationInventors: Husnu Alp Alidedeoglu, Hareesh Shamroa Deshpande, Belinda Duckworth, Tukaram Gunale, Darshan Jayanna, Ganesh Kannan
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Publication number: 20150018512Abstract: Polyester-co-carbonate polyols and methods for producing the same are provided. The method comprises reacting one or more alcohols having an OH functionality of two or more with one or more organic diacids to form a reaction mixture, adding a first amount of dialkyl carbonate to the reaction mixture to remove water remaining from the reaction mixture by azeotropic drying, adding a transesterification catalyst to the dialkyl carbonate containing reaction mixture and adding a second amount of dialkyl carbonate to the catalyst containing reaction mixture.Type: ApplicationFiled: February 4, 2013Publication date: January 15, 2015Inventors: William H. Heath, Harpreet Singh, Amarnath Singh, Jorge Jimenez, Qiuyun Xu
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Patent number: 8933162Abstract: Biodegradable compositions containing an aliphatic-aromatic copolyester. Methods of making the compositions and articles made from the compositions.Type: GrantFiled: March 28, 2012Date of Patent: January 13, 2015Assignee: Saudi Basic Industries CorporationInventors: Husnu Alp Alidedeoglu, Ganesh Kannan
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Patent number: 8921509Abstract: Provided is a composition with partially aromatic polyester polymers having an It.V. of at least 0.50 dL/g, produced in an ester exchange melt phase process, having from zero or greater than zero to less than 5 ppm titanium, from zero or greater than zero to less then 10 ppm germanium, and from zero or greater than zero to less than 20 ppm manganese.Type: GrantFiled: June 18, 2012Date of Patent: December 30, 2014Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Zhufang Liu, Jeff Scott Howell
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Publication number: 20140378644Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) directly from monomer via heterogeneous catalysis, rather than by depolymerizing a polyester. For example, in an exemplary embodiment, cyclic poly(butylene terephthalate) (cPBT) is produced by reacting butanediol (BDO) and dimethylterephthalate (DMT) in an organic solvent—for example, ortho-dichlorobenzene (oDCB). The mixture flows over (or otherwise contacts) the catalyst-coated fiberglass or silica gel, e.g., which is packed in a column or bed. MPO is produced in the reaction mixture, while residual linears and catalyst residue remain in the column/bed.Type: ApplicationFiled: September 4, 2014Publication date: December 25, 2014Inventors: Jimmy Lynn Webb, James Mihalich
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Publication number: 20140364580Abstract: The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:01-1000. The invention also provides a production method of poly-?- caprolactone or polyactide, wherein an ?-caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly-?-caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly-?- caprolactone or polylactide with a high efficiency.Type: ApplicationFiled: September 11, 2012Publication date: December 11, 2014Applicant: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Dongmei Cui, Xinli Liu, Bo Liu, Shihui Li, Dongtao Liu, Chunji Wu
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Patent number: 8901271Abstract: The invention relates to a process for making polyethylene terephthalate (PET) from ethylene glycol (EG), purified terephthalic acid (PTA) and optionally up to 6 mol % comonomer, using a mixed metal catalyst system and comprising the steps of a) esterifying EG and PTA to form diethyleneglycol terephthalate and oligomers (DGT), and b) melt-phase polycondensing DGT to form PET and EG, wherein the catalyst system substantially consists of 70-160 ppm of Sb-compound, 20-70 ppm of Zn-compound, and 0.5-20 ppm of Ti-glycolate as active components (ppm metal based on PET). With this process that applies reduced amount of metal catalyst components PET can be obtained with high productivity, which polyester shows favorable color and optical clarity, also if recycling of EG is applied within the process.Type: GrantFiled: August 17, 2010Date of Patent: December 2, 2014Assignee: Saudi Basic Industries CorporationInventors: Munif Al-Munif, Mummaneni Venkateswara Rao, Zahir Bashir, Suresh Padmanabhan
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Patent number: 8901272Abstract: A polyester polymer comprising alkylene arylate units, said polymer having an It.V. of at least 0.72 dl/g, a vinyl ends concentration of at least 0.8 microequivalents per gram, an AA generation rate of less than 20 ppm are prepared by addition of a catalyst deactivator either late in the polycondensation or upon remelting of a solid polyester polymer.Type: GrantFiled: February 2, 2007Date of Patent: December 2, 2014Assignee: Grupo Petrotemex, S.A. de C.V.Inventor: Mary Therese Jernigan
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Patent number: 8901273Abstract: An amorphous copolyester comprising the reaction product of (a) a monomer of formula I wherein R1, R2, R3, and R5 are each independently a C1-3 alkyl group, a is 0-1, b is 0-4, c is 0-4 and d is 0-3, and each R4 is independently hydrogen or a C1-3 alkyl group; (b) a terephthalyl component selected from terephthalic acid, a di(C1-3 alkyl) terephthalate, and combinations thereof, derived from a terephthalyl-containing polyester; and (c) 1,4-cyclohexane dimethanol; wherein the monomer (a) units are present in an amount from 7 to less than 12 mole % of the copolyester based on the total moles of repeat units in the copolyester; and the copolyester has a glass transition temperature of at least 107° C., an intrinsic viscosity of at least 0.7 dl/g, and a molded sample has a Notched Izod value of at least 290 J/m determined in accordance with ASTM D256.Type: GrantFiled: February 15, 2012Date of Patent: December 2, 2014Assignee: Saudi Basic Industries CorporationInventors: Navinchandra S. Asthana, Ganesh Kannan
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Patent number: 8901029Abstract: The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, the polycondensation catalyst being obtained by hydrolyzing a water soluble titanium compound in the absence of a water soluble alkali in an aqueous slurry in which particles of a solid base are dispersed thereby to form on the surface of the particles of the solid base a coat layer of titanic acid in a content of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base. The invention further provides a method for producing the polycondensation catalyst, and polyester obtained using the polycondensation catalyst.Type: GrantFiled: September 10, 2010Date of Patent: December 2, 2014Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Keiichi Tabata, Akihiro Kamon, Jun Naito, Keiichi Ikegawa
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Patent number: 8889819Abstract: A method for producing a polyester resin composition includes conducting polyconensation via esterification or transesterification, wherein an alkali metal phosphate in an amount of 1.3 mol/ton to 3.0 mol/ton and phosphoric acid in an amount of 0.4 to 1.5 times (by mole) that of the alkali metal phosphate are added at a stage between the point of time when the esterication or transesterification has been substantially completed and the point of time when the intrinsic viscosity reaches 0.4. A polyester resin composition obtained by the process exhibits excellent long-term hydrolysis resistance and excellent mechanical characteristics.Type: GrantFiled: March 1, 2010Date of Patent: November 18, 2014Assignee: Toray Industries, Inc.Inventors: Hiroji Kojima, Jun Sakamoto, Mayumi Sunako
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Patent number: 8889820Abstract: An amorphous copolyester comprising the reaction product of (a) a monomer of formula I wherein R1, R2, R3, and R5 are each independently a C1-3 alkyl group, a is 0-1, b is 0-4, c is 0-4 and d is 0-3, and each R4 is independently hydrogen or a C1-3 alkyl group; (b) a terephthalyl component selected from terephthalic acid, a di(C1-3 alkyl) terephthalate, and combinations thereof, derived from a terephthalyl-containing polyester; and (c) 1,4-cyclohexane dimethanol; wherein the monomer (a) units are present in an amount from 7 to less than 12 mole % of the copolyester based on the total moles of repeat units in the copolyester; and the copolyester has a glass transition temperature of at least 107° C., an intrinsic viscosity of at least 0.7 dl/g, and a molded sample has a Notched Izod value of at least 290 J/m determined in accordance with ASTM D256.Type: GrantFiled: February 15, 2012Date of Patent: November 18, 2014Assignee: Saudi Basic Industries CorporationInventors: Navinchandra S. Asthana, Ganesh Kannan
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Patent number: 8846561Abstract: The present invention relates to a catalytically active composition that can be used for the production of polyesters. According to the invention, good polyester products can be obtained in this way without having to use antimony components.Type: GrantFiled: May 3, 2007Date of Patent: September 30, 2014Assignee: Lurgi Zimmer GmbHInventors: Brigitta Otto, Eckhard Seidel
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CATALYST FOR SYNTHESIZING POLYESTER RESIN AND METHOD OF MANUFACTURING POLYESTER RESIN USING THE SAME
Publication number: 20140288261Abstract: A catalyst used to manufacture a biodegradable polyester resin, in particular, an organic titanium catalyst which does not contain a heavy-metal component, and a method of manufacturing a polyester resin using the same. Accordingly, the method of manufacturing a polyester resin can be useful in attaining desired physical properties without using a catalyst harmful to environments and a human body. The biodegradable resin, which can be safely used in the field of applications in which the use of harmful components is a sensitive issue without using the components harmful to environments and a human body during the manufacture of a resin, can be prepared.Type: ApplicationFiled: February 4, 2013Publication date: September 25, 2014Inventors: Gyung Don Kang, Ki Chul Yoon, Ji Soo Ahn, Chung Il Lee, Ye Jin Kim, Sung Bae Park, Se Hoon Kim -
Patent number: 8816041Abstract: Provided are a polyester polymerization catalyst with which the generation of foreign materials caused by the catalyst or mold pollution at the time of molding are reduced and polyesters having remarkably superior thermal stability and color tone can be obtained. Provided is a polyester polymerization catalyst produced by the reaction of a titanium compound and a mannitol in a molar ratio of titanium atom to mannitol of from 1:1 to 1:3. A method for producing a polyester employs the polyester polymerization catalyst.Type: GrantFiled: August 18, 2009Date of Patent: August 26, 2014Assignee: Toray Industries, Inc.Inventors: Yoichiro Tanaka, Eri Hatano, Keisuke Honda
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Patent number: 8791225Abstract: A method for making polyethylene terephthalate resin in which a titanium-nitride polycondensation catalyst is introduced during the initial stages of esterification or transesterification. The titanium-nitride polycondensation catalyst may be added to a mixture containing a terephthalate component and a diol component during the formation of a polyethylene terephthalate precursor. Subsequent polycondensation of the polyethylene terephthalate precursor forms a polyethylene terephthalate polymer.Type: GrantFiled: June 5, 2009Date of Patent: July 29, 2014Assignee: DAK Americas Mississippi Inc.Inventor: Carl Steven Nichols