Cycloaliphatic Ring-containing Reactant (other Than Aryl) Patents (Class 528/307)
  • Patent number: 10624632
    Abstract: A novel high tensile strength semi-absorbable composite suture with minimized non-absorbable mass. The suture has a core made from a bioabsorbable polymer. The core is covered by a braided sheath. The braided sheath is made from an absorbable yarn and a bioabsorbable yarn. The bioabsorbable yarn is made from a least one filament of a bioabsorbable polymer. The nonabsorbable yarn is made from at least one filament of ultra high molecular weight polyethylene.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 21, 2020
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Ilya Koyfman, Terry E. Lawler, Robert C. Di Luccio, Dennis D. Jamiolkowski
  • Patent number: 10557978
    Abstract: The present invention provides, as a composition containing a smectic liquid crystal compound which can be used for production of a homogeneous optical film at a temperature around room temperature, a composition containing a smectic liquid crystal compound having a 1,4-cyclohexyl group, which smectic liquid crystal compound having the 1,4-cyclohexyl group contains (i) 100 parts by mass of a smectic liquid crystal compound having a trans-1,4-cyclohexyl group and (ii) 0.1 parts by mass to 10 parts by mass of a smectic liquid crystal compound having a cis-1,4-cyclohexyl group.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: February 11, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Nobuyuki Hatanaka, Haruki Okawa
  • Patent number: 10439086
    Abstract: A photovoltaic cell comprising a transparent front-plane, an opaque back-plane and an encapsulant resin wherein said back-plane comprises a polyester film comprising a base layer (B) comprising a crystallizable polyester and a heat-sealable layer (A) comprising an amorphous copolyester wherein: (i) said amorphous copolyester is derived from an aliphatic diol and a cycloaliphatic diol and at least one aromatic dicarboxylic acid (ii) said polyester film is disposed in the photovoltaic cell such that layer (A) is in contact with the encapsulant resin.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 8, 2019
    Assignee: DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP
    Inventors: Emily Parnham, Simon V. Mortlock, Allan Lovatt, Julian N. Robinson, Maurice Kieran Looney, Paul James Oliver
  • Patent number: 10329235
    Abstract: This invention relates to the continuous production of 1,4-cyclohexane dimethanol (CHDM) and optionally and additionally of 1,4-cyclohexane dicarboxylic acid (CHDA) directly using terephthalic acid (TPA) as the raw material. More specifically, this invention relates to a method and system for continuous production of CHDM and CHDA that features direct use of TPA as feedstock, promotes efficient use of solvent and energy, and provides products with the desired high trans isomer content, by exploiting unexpected features of the thermodynamic phase behavior and the reaction mechanisms.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: June 25, 2019
    Assignee: ClearWaterBay CHDM Technology Limited
    Inventors: Ketan D. Samant, Drow Lionel O'Young, Yik Chung Chan
  • Patent number: 10174157
    Abstract: Disclosed are biodegradable aliphatic-aromatic polyesters obtained from aliphatic dicarboxylic acids, polyfunctional aromatic acids and diols, wherein the polyfunctional aromatic acids are constituted by mixtures of acids of renewable and synthetic origin its esters. In particular, the polyfunctional aromatic acids comprise at least one phthatic diacid and at least one heterocyclic aromatic diacid of renewable origin, which can be 2,5-furandicarboxylic acid and its esters. Also, provided are mixtures of the polyesters with other biodegradable polymers both of natural and synthetic origin.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: January 8, 2019
    Assignee: NOVAMONT S.P.A.
    Inventors: Catia Bastioli, Giampietro Borsotti, Luigi Capuzzi, Gian Tomaso Masala, Tiziana Milizia, Roberto Vallero
  • Patent number: 9169348
    Abstract: This invention relates to a baby bottle made from a polyester composition comprising a polyester further comprising 80 to 100 mole % terephthalic acid residues, 0 to 20 other diacid residues, 30 to 40 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 60 to 70 mole % 1,4-cyclohexanedimethanol residues, wherein the total diol residues equal 100 mole % and the total diacid residues equal 100 mole %. These baby bottles are unique in that they provide an alternative to baby bottles made from polycarbonate and they provide good heat resistance, good toughness, and good chemical resistance.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: October 27, 2015
    Assignee: EASTMAN CHEMICAL COMPANY
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, David Scott Porter, Gary Wayne Connell, Michael James Keegan
  • Publication number: 20150105532
    Abstract: Provided is a method of depolymerizing polyesters from post-consumer products, such as beverage bottles, to produce a high purity reaction product. For the depolymerization reaction, the polyesters are reacted with an alcohol having 2 to 5 carbons and an amine organocatalyst at a temperature of about 150° C. to about 250° C. In one application, the use an organocatalyst with a boiling point significantly lower than the boiling point of the reactant alcohol allows for the ready recycling of the amine organocatalyst. In another application, performing the depolymerization reaction under pressure at a temperature above that of the alcohol allows for accelerated depolymerization rates and the recovery of the organocatalyst with no further heat input.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: International Business Machines Corporation
    Inventors: Robert D. Allen, Krishna M. Bajjuri, James L. Hedrick, Gregory Breyta, Carl E. Larson
  • Patent number: 8992805
    Abstract: A liquid crystal polyester resin composition of the present invention comprises: 100 parts by mass of a liquid crystal polyester; and 50 to 150 parts by mass of titanium oxide, wherein the liquid crystal polyester comprises 2 to 30 mole % of a repeating structural unit represented by the following formula (1), and 40 to 80 mole % of a repeating structural unit represented by the following formula (2).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 31, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Kiichiro Nishimura, Lu Shi, Satoshi Murouchi
  • Patent number: 8969506
    Abstract: 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: Grant
    Filed: February 15, 2012
    Date of Patent: March 3, 2015
    Assignee: Saudi Basic Industries Corporation
    Inventors: Navinchandra S. Asthana, Ganesh Kannan
  • Patent number: 8946335
    Abstract: A thermoplastic resin composition according to the present invention contains an inorganic filler and a thermoplastic resin whose main chain contains a repeating unit represented by the general formula (1): -M-Sp- . . . ??(1) wherein M represents a mesogenic group; and Sp represents a spacer.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: February 3, 2015
    Assignee: Kaneka Corporation
    Inventors: Shusuke Yoshihara, Kazuaki Matsumoto
  • Patent number: 8907130
    Abstract: The invention relates to novel ?-hydroxyalkylamides, to a method for their production and to the use thereof.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 9, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Patent number: 8901273
    Abstract: 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: Grant
    Filed: February 15, 2012
    Date of Patent: December 2, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Navinchandra S. Asthana, Ganesh Kannan
  • Publication number: 20140349038
    Abstract: The invention relates to a special layer construction and a special film of plastic for the production of such a layer construction which is suitable for printing by means of dye diffusion thermal transfer printing, a process for the production thereof and a security and/or valuable document comprising such a layer construction.
    Type: Application
    Filed: January 16, 2013
    Publication date: November 27, 2014
    Inventors: Heinz Pudleiner, Klaus Meyer, Georgios Tziovaras, Mehmet-Cengiz Yesildag, Chung Leung Wong
  • Patent number: 8895654
    Abstract: Described as one aspect of the invention are polyester compositions comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 80 to about 100 mole % of terephthalic acid residues; (ii) about 0 to about 20 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and (b) a glycol component comprising: (i) about 1 to about 49 mole % spiro-glycol residues; and (ii) about 51 to about 99 mole % at least one glycol chosen from at least one of 1,4-cyclohexanedimethanol residues and 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 25, 2014
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Gary Wayne Connell
  • Patent number: 8889820
    Abstract: 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: Grant
    Filed: February 15, 2012
    Date of Patent: November 18, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Navinchandra S. Asthana, Ganesh Kannan
  • Patent number: 8883897
    Abstract: This invention relates to the new functional norbornanyl ester derivative and/or polymer compositions which are easily obtainable by reacting the Diels-Alder adduct of appropriate dienes and dienophiles with carboxylic acids. In particular, this invention relates to a new process for making cyclic chemical raw materials suitable for production coating, ink, adhesive, plasticizer, thermoplastic or thermosetting plastic and functional polymers.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 11, 2014
    Assignee: New Functional Polymers LLC
    Inventor: Hui Yu
  • Publication number: 20140309366
    Abstract: The present invention relates to a method for preparation a glycolide polyester by ring opening polymerization characterized in that glycolide monomer with optional co-monomer(s) of cyclic ester(s) is/are subjected to ring opening polymerization in the presence of a dispersion stabilizer and a catalyst, said catalyst being selected for precipitating glycolide homopolymer or copolymer from solvent, said solvent being selected so that the glycolide monomer and the optional co-monomer(s), the dispersion stabilizer and the catalyst are soluble therein but said glycolide homopolymer or copolymer is non-soluble. The present invention further relates to an in situ ring opening polymerizing process product, and to use of said glycolide polyester, and to further processing of said glycolide polyester.
    Type: Application
    Filed: May 23, 2012
    Publication date: October 16, 2014
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Jun SHAN, Mika HÄRKÖNEN, Jarmo ROPPONEN, Ali HARLIN, Harri HEIKKINEN, Virpi RÄMÖ, Thomas GÄDDA, Leena NURMI, Pia WILLBERG-KEYRILÄINEN
  • Publication number: 20140296407
    Abstract: Disclosed are aliphatic polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol and solvent borne, thermosetting coating compositions prepared therefrom. The aliphatic polyesters exhibit good hardness and flexibility when formulated into thermosetting coatings compositions.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Stacey James Marsh, Angela Hartley Honeycutt
  • Patent number: 8822629
    Abstract: The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerization with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: September 2, 2014
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Dong-June Hwang, Jae-Bong Lim, Seung-Do Leem, Tae-Young Kim, Sung-su Bae
  • Publication number: 20140221599
    Abstract: Provided is a molded body for dental use, said molded body being made from a polyester resin which as a material for esthetic dentures exhibits excellent fracture resistance and moderate bendability, and which ensures excellent polishability during denture fabrication, and has an alkali resistance which prevents a denture from fracturing due to denture cleaning. This molded body for dental use is made from a polyester resin which is composed of a dicarboxylic acid component containing a terephthalic acid residue, and a glycol component containing a 2,2,4,4-tetramethyl-1,3-cyclobutanediol residue and a 1,4-cyclohexanedimethanol residue, wherein the proportions of the terephthalic acid residue, 2,2,4,4-tetramethyl-1,3-cyclobutanediol residue and 1,4-cyclohexanedimethanol residue in the polyester resin are 30 to 70 mol %, 5 to 25 mol %, and 25 to 50 mol %, respectively.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 7, 2014
    Applicant: Nissin Dental Products Inc.
    Inventors: Munemitsu Hishimoto, Yoko Kato
  • Publication number: 20140197580
    Abstract: The invention relates to a method for producing a bio-PET polymer comprising the following steps: Step A) providing at least one diacid compound, comprising a terephtalate compound; Step B) providing at least one diol compound, comprising monoethylene glycol; wherein—at least one of the terephtalate compound and/or the monoethylene glycol is obtained from at least one bio-based material, and—at least one of the diacid compound and/or the diol compound further comprises at least one crystallization retarding compound; and Step C) copolymerizing a mixture of the diacid compound and the diol compound to obtain a bio-PET polymer comprising diacid units and diol units, comprising up to 7.5 mol % of unit(s) corresponding to the at least one crystallization retarding compound, based on the total number of moles of diacid units contained in the bio-PET.
    Type: Application
    Filed: September 7, 2012
    Publication date: July 17, 2014
    Inventor: Francoise Poulat
  • Publication number: 20140193619
    Abstract: The invention relates to multilayer materials for producing packaging comprising at least two films and also a layer which is printed with a packaging printing ink, said packaging printing ink comprising a certain hyperbranched polyester containing functional groups. The invention further relates to a packaging printing ink which comprises a certain hyperbranched polyester containing functional groups, and to the use of said printing ink for producing multilayer materials.
    Type: Application
    Filed: April 13, 2012
    Publication date: July 10, 2014
    Inventors: Bernd Bruchmann, Monika Haberecht, Chien Lu Hsu, John Campbell, James W. Taylor
  • Patent number: 8754173
    Abstract: The present invention relates to a process for the continuous production of polymer mixtures comprising: a) from 10 to 80% by weight of a biodegradable polyester (Q) composed of aliphatic or aliphatic and aromatic dicarboxylic acids and of aliphatic dihydroxy compounds, and b) from 20 to 90% by weight of one or more polymers (T) selected from the group consisting of: polylactic acid, polycaprolactone, polypropylene carbonate, polyglycolide, aliphatic polyester, cellulose acetate, and polyhydroxyalkanoate, where i) a mixture composed of the aliphatic dihydroxy compounds, of the aliphatic and aromatic dicarboxylic acids and, if appropriate, of further comonomers (component C) is mixed, without addition of any catalyst, to give a paste or, as an alternative, the liquid esters of the dicarboxylic acids are fed into the system, as also are the dihydroxy compound and, if appropriate, further comonomers, without addition of any catalyst, and in a first stage this mixture, together with the entire amount or with a
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 17, 2014
    Assignee: BASF SE
    Inventors: Robert Loos, Uwe Witt, Motonori Yamamoto, Günther Mair, Andreas Garbe
  • Publication number: 20140163195
    Abstract: Bio-based terephthalic acid (bio-TPA), bio-based dimethyl terephthalate (bio-DMT), and bio-based polyesters, which are produced from a biomass containing a terpene or terpenoid, such as limonene are described, as well as the process of making these products. The bio-based polyesters include poly(alkylene terephthalate)s such as bio-based poly(ethylene terephthalate) (bio-PET), bio-based poly(trimethylene terephthalate) (bio-PTT), bio-based poly(butylene terephthalate) (bio-PBT), and bio-based poly(cyclohexylene dimethyl terephthalate) (bio-PCT).
    Type: Application
    Filed: December 26, 2013
    Publication date: June 12, 2014
    Inventors: Corrado Berti, Enrico Binassi, Martino Colonna, Maurizio Fiorini, Ganesh Kannan, Sreepadaraj Karanam, Marzia Mazzacurati, Ihab Odeh
  • Publication number: 20140141372
    Abstract: A photosensitive polymer includes a repeating unit represented by Formula 1 and the photosensitive polymer has a weight average molecule weight of from about 3,000 to about 50,000:
    Type: Application
    Filed: March 12, 2013
    Publication date: May 22, 2014
    Inventor: Sang-Jun Choi
  • Patent number: 8716429
    Abstract: In a curable coil coating composition comprising a mixture of: (a) a curable polyester that is a liquid at room temperature, (b) a cross-linking agent; and (c) a solvent; the improvement comprising preparing the polyester from a composition comprising a mixture of 1,3- and 1,4-cyclohexane dimethanol wherein the molar ratio of the 1,3 isomer to the 1,4 isomer is from about 60:40 to about 5:95. Cured coil coatings prepared from these compositions exhibit an excellent combination of flexibility and hardness.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 6, 2014
    Inventors: Gary E. Spilman, Scott J. Bis, Paul J. Popa
  • Patent number: 8674054
    Abstract: A polyester resin having a diol unit containing a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit containing a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %: wherein A represents an aromatic ring selected from the group consisting of benzene, naphthalene, anthracene, phenanthrene and pyrene; R1 represents a C1 to C12 alkyl group, a substituted or unsubstituted C6 to C12 aryl group or a halogen atom; n represents an integer of 0 to 4; and when plural R1s are present, R1s may be the same as or different from each other.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: March 18, 2014
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takuya Minezaki, Takeshi Hirokane, Dai Oguro
  • Publication number: 20140065385
    Abstract: The invention relates to multilayer materials for producing packaging comprising at least two films and also a layer which is printed with a packaging printing ink, said packaging printing ink comprising a certain hyperbranched polyester containing functional groups. The invention further relates to a packaging printing ink which comprises a certain hyperbranched polyester containing functional groups, and to the use of said printing ink for producing multilayer materials.
    Type: Application
    Filed: April 13, 2012
    Publication date: March 6, 2014
    Inventors: Bernd Bruchmann, Monika Haberecht, Chien Lu Hsu, James W. Taylor, John Campbell
  • Patent number: 8633296
    Abstract: A composite hydrogel comprises an amphiphilic triblock copolymer (ABA) and a loaded micelle bound by noncovalent interactions. The loaded micelle comprises a biologically active substance and an amphiphilic diblock copolymer (CD). The A blocks comprise a steroidal repeat unit (repeat unit 1) having both a backbone carbonate and a side chain bearing a steroid functional group. Each of the A blocks has a degree of polymerization of about 0.5 to about 4.0. The B block comprises a first poly(alkylene oxide) backbone. The C block comprises a second poly(alkylene oxide) backbone. The D block comprises a steroidal repeat unit (repeat unit 2) having both a backbone carbonate group and a side chain comprising a steroid functional group. The composite hydrogel is capable of controlled release of the biologically active substance.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 21, 2014
    Assignees: International Business Machines Corporation, Agency for Science, Technology and Research
    Inventors: Daniel J. Coady, Richard A. DiPietro, Amanda C. Engler, James L. Hedrick, Ashlynn L. Lee, Shrinivas Venkataraman, Yi Yan Yang
  • Publication number: 20140018512
    Abstract: A reactant composition includes: a diol component; a diacid-derived component; and a modifier represented by the following formula (I): wherein R1, R2, and R3 independently represent H or a methyl group, and at least one of R1, R2, and R3 is a methyl group. A polyester made from the reactant composition is also disclosed.
    Type: Application
    Filed: May 30, 2013
    Publication date: January 16, 2014
    Applicant: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Roy Wu, Yi-Hsuan Tang, Hsin-Yi Chou
  • Publication number: 20140018497
    Abstract: The present invention relates to a copolymer polyester resin and a molded product using the same and more specifically to a copolymer polyester resin that contains 10˜80 mol % of 1,4-cyclohexane dimethanol, 0.1˜30 mol % of a cyclohexane dimethanol compound expressed as HOH2C—[C6H12]m—[C6H12]—CH2OH (where m is an integer from 1˜10), and ethylene glycol as the remainder so that the sum of the entire diol composition may be 100 mol % based on an aromatic dicarboxylic acid. The copolymer polyester of the present invention enables superior products to be provided that reduce cycle time and enhance product processability during mold processing using a heat-shrinking label by complementing low temperature shrinkage properties that may be exhibited by the polyester resin of the prior art copolymerized with 1,4-cyclohexane dimethanol.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: SK Chemicals Co., Ltd.
    Inventors: Myoung Ruoul Lee, Jong Ryang Kim, Nam Jung Kim
  • Patent number: 8614280
    Abstract: A process for the continuous production of a biodegradable polyester, where a mixture of aliphatic dihydroxy compounds, aliphatic and aromatic dicarboxylic acids or their liquid esters, and, optionally, further comonomers is mixed, without addition of a catalyst, to give a paste, and i) this mixture with at least a portion of the catalyst, is continuously esterified or, transesterified; ii) the transesterification or, esterification product obtained in i) is continuously precondensed with any remaining amount of catalyst to an intrinsic viscosity of from 20 to 70 cm3/g; iii) the product obtainable from ii) is continuously polycondensed to an intrinsic viscosity of from 60 to 170 cm3/g, and iv) the product obtainable from iii) is reacted continuously with a chain extender in a polyaddition reaction to an intrinsic viscosity of from 150 to 320 cm3/g. The invention further relates to biodegradable polyesters obtained by this process.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: December 24, 2013
    Assignee: BASF SE
    Inventors: Uwe Witt, Motonori Yamamoto
  • Patent number: 8603634
    Abstract: This invention relates to poly(ester amide)s (PEAs) comprising inactivated terminal amino and carboxyl groups, methods of synthesizing the inactivated PEAs and uses for them in the treatment of vascular diseases.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: December 10, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Jessica Renee DesNoyer, Stephen Dirk Pacetti, Vidya Nayak, Lothar Kleiner
  • Publication number: 20130324688
    Abstract: The preparation of cyclohexadienes from one or more plant oils is disclosed. The cyclohexadiene can be used to form polymers or derivatized to form other monomers that can be used to form polymeric materials.
    Type: Application
    Filed: April 9, 2013
    Publication date: December 5, 2013
    Inventor: Robert T. MATHERS
  • Patent number: 8586652
    Abstract: This invention relates to certain poly(1,4-cyclohexylenedimethylene terephthalate) copolyesters which are useful for the preparation of clear and tough thick wall molded parts, produced at good cycle times. The copolyesters can be molded into desired shapes such as cosmetic jars, fragrance caps, tool handles, and toothbrushes. These molded articles can have thick or thin walls and may be molded in a two shot molding process. The copolyesters also have good flow and reduced cycle times.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: November 19, 2013
    Assignee: Eastman Chemical Company
    Inventors: Alisa Annette Williams, Mark Allan Treece, Ludovic Claude Robert Gardet, Gary Michael Stack
  • Patent number: 8586701
    Abstract: Disclosed is a process for the preparation of high molecular weight, thermoplastic copolyesters by reacting a diester composition comprising a dialkyl ester of terephthalic acid with a diol composition comprising a first diol component comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol and a second diol component comprising 1,4-cyclohexanedimethanol. The diester composition can be reacted with the first diol component to produce a polyester oligomer that can be reacted further with the second diol component to produce a modified polyester oligomer. The modified polyester oligomer can then be heated to form a copolyester. The process reduces the precipitation of poly(1,4-cyclohexylene dimethylene) terephthalate in the reaction mixture.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 19, 2013
    Assignee: Eastman Chemical Company
    Inventors: Benjamin Fredrick Barton, Damon Bryan Shackelford
  • Publication number: 20130303692
    Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising 80 to 100 mole % terephthalic acid residues; optionally, 0 to 20 mole % aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 20 to 30 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 70 to 80 mole % 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
    Type: Application
    Filed: July 12, 2013
    Publication date: November 14, 2013
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephens McWilliams, David Scott Porter, Gary Wayne Connell, Ted Calvin Germroth, Benjamin Fredrick Barton, Damon Bryan Shackelford
  • Patent number: 8557951
    Abstract: The present invention relates to a copolymer polyester resin and a molded product using the same and more specifically to a copolymer polyester resin that contains 10˜80 mol % of 1,4-cyclohexane dimethanol, 0.1˜30 mol % of a cyclohexane dimethanol compound expressed as HOH2C—[C6H12]m—[C6H12]—CH2OH (where m is an integer from 1˜10), and ethylene glycol as the remainder so that the sum of the entire diol composition may be 100 mol % based on an aromatic dicarboxylic acid. The copolymer polyester of the present invention enables superior products to be provided that reduce cycle time and enhance product processability during mold processing using a heat-shrinking label by complementing low temperature shrinkage properties that may be exhibited by the polyester resin of the prior art copolymerized with 1,4-cyclohexane dimethanol.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 15, 2013
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Myoung Ruoul Lee, Jong Ryang Kim, Nam Jung Kim
  • Patent number: 8524837
    Abstract: The invention relates to heat-curing powder-lacquer compositions exhibiting a matte surface after curing of the coating, as well as to a simple method for production of the same.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 3, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20130225762
    Abstract: Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol, wherein the inherent viscosity and the Tg of the polyester provides for certain polyester properties. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 29, 2013
    Applicant: Eastman Chemical Company
    Inventor: Eastman Chemical Company
  • Patent number: 8507638
    Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and cyclohexanedimethanol residues. The polyesters have a desirable combination of inherent viscosity and glass transition temperature (“Tg”). The polyesters can have an inherent viscosity from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C. and a Tg of 85 to 115° C. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: August 13, 2013
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephen McWilliams, David Scott Porter, Gary Wayne Connell, Ted Calvin Germroth, Benjamin Fredrick Barton, Damon Bryan Shackelford
  • Patent number: 8501287
    Abstract: The invention is generally directed to baby bottles and other articles produced by blow molding from polymeric materials having glass transition temperatures ranging from 100° C. to 130° C., as well as to processes for producing them. These articles can be exposed to boiling water and can be produced by using a suitable combination of a stretch ratio of less than 3 and a preform temperature at least 20° C. greater than the glass transition temperature (Tg) of the polymeric material.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: August 6, 2013
    Assignee: Eastman Chemical Company
    Inventors: Thomas Joseph Pecorini, Spencer Allen Gilliam, Alan Keith Phillips, Robert Ellis McCrary
  • Patent number: 8497343
    Abstract: A polyarylate composition comprising: structural units derived at least one substituted or unsubstituted diacid, at least one aromatic dihydroxy compound, and an unsaturated compound. The composition possesses good optical properties, flow, stability and mechanical property. Also disclosed is a process to prepare these compositions and articles therefrom.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: July 30, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Abbas Alli Ghudubhai Shaikh, Govind Subbanna Wagle, Ramesh Rajeswaran, Ganesh Kannan, Kyle Patrick Starkey, Michael Stephen Donovan
  • Patent number: 8465842
    Abstract: The present invention relates to a biaxial oriented polyester film and process for preparing the same, the said film is having an average ellipticity of not more than 0.6, Poisson ratio of not more than 0.7 (at elongation greater than 25%) all along the width of web and residual enthalpy in the range of 12% to 20%, a continuous reduction in residual film area up to an elongation of 100%.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: June 18, 2013
    Assignee: Polyplex Corporation Limited
    Inventors: Bidhan Krushna Mohanty, Krishna Reddy
  • Patent number: 8466133
    Abstract: The present invention provides compositions and methods relating to polylactides which may be used for drug delivery (e.g., parenteral delivery), wherein an organic solvent is not required.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: June 18, 2013
    Assignee: University of Geneva
    Inventors: Michael Moller, Thomas Trimaille, Robert Gurny
  • Patent number: 8430948
    Abstract: The present invention relates to a condensation and washing device with which in particular the process vapors which occur during the production of polylactide can be processed and cleaned. Furthermore, the present invention relates to a polymerization device for the production of polylactide and also to a method for processing process vapors which occur during the production of polylactide; possibilities for use of both the condensation and washing devices and of the method are likewise mentioned.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: April 30, 2013
    Assignee: Uhde Inventa-Fischer GmbH
    Inventors: Rainer Hagen, Udo Muhlbauer
  • Publication number: 20130095270
    Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 1,4-cyclohexanedimethanol. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 18, 2013
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventor: EASTMAN CHEMICAL COMPANY
  • Patent number: 8420769
    Abstract: Provide are a novel polyester resin that can be used for producing a molded article excellent in impact resistance, and a method of producing the polyester resin. The polyester resin has structural units represented by the following general formulae (1) and (2), and contains the structural unit represented by the general formula (2) at a content of 50.1 mol % or more to 99.9 mol % or less with respect to the total of the structural units represented by the general formulae (1) and (2). The method of producing a polyester resin, includes copolymerizing a furandicarboxylic acid or an ester thereof with ethylene glycol and diethylene glycol. In the formula, R1 represents an aromatic hydrocarbon group which may be substituted, or an aliphatic hydrocarbon group which may be substituted.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: April 16, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Eritate
  • Patent number: 8415450
    Abstract: Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-l,3-cyclobutanediol, and 1,4-cyclohexanedimethanol, wherein the inherent viscosity of said polyester is from 0.55 to 0.68 dL/g as determined in 60/40(wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; wherein said polyester has a Tg from 110 to 160° C.; wherein the polyester composition comprises no polycarbonate; wherein the melt viscosity of the polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.; and wherein the polyester has a notched Izod impact strength, of at least 7.5 ft-lb/in.ch at 23° C. according to ASTM D256 with a 10-mil notch in a ? inch thick bar. The polyesters may be manufactured into articles of manufacture as fibers, films, bottles or sheets.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: April 9, 2013
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephens McWilliams, David Scott Porter, Gary Wayne Connell
  • Publication number: 20130084312
    Abstract: Biocompatible polymeric nanoparticles for delivery of bioactive agents, and methods for preparing the particles, are described. Polyoxalate nanoparticles of the subject technology show desired particle sizes suitable for use in drug delivery and a substantially uniform or narrow particle size distribution. The polyoxalate nanoparticles can contain water-soluble, poorly water-soluble, or water-insoluble drugs. The nanoparticles are nontoxic and are generally safe for use in humans. After being administered into the body, the nanoparticles with a high content of a bioactive agent entrapped therein can safely deliver the agent to target sites and stably release the drug at a controlled rate.
    Type: Application
    Filed: June 12, 2012
    Publication date: April 4, 2013
    Applicant: ROSE PHARMACEUTICALS, LLC
    Inventors: Gregory A. CAPUTO, Yaquan SUN, Lei YU, Sireesh APPAJOSYULA