Featured patents

Process for Making Polyethylene Terephthalate
US 08859713 B2, Oct. 14, 2014, Material contains a Group IIB metal atom (Zn, Cd, Hg), Mummaneni Venkateswara Rao et al. / Saudi Basic Industries Corporation (Riyadh, SA)
A process for making polyethylene terephthalate (PET) from ethylene glycol (EG),…

Preparation of Polyamides
US 08772438 B2, July 8, 2014, From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid, Charles Richard Langrick et al. / Invista North America S.är.l. (Wilmington, US)
A process for making a polyamide polymer, said process comprising:…

High Purity Diphenyl Sulfone, Preparation and Use Thereof for the Preparation of a Poly(aryletherketone)
US 08710171 B2, April 29, 2014, From ketone-containing phenolic reactant or with ketone-containing reactant, Chantal Louis et al. / Solvay Advanced Polymers, L.L.C. (Alpharetta, US)
A method for the preparation of a poly(aryletherketone) by aromatic nucleophilic…

Method for Producing Polyester
US 08680229 B2, March 25, 2014, From di- or higher ester of a polycarboxylic acid as sole reactant, or from a polycarboxylic acid or derivative with a compound containing two or more hydroxyl groups or salts thereof, Naoya Maeda et al. / Mitsubishi Chemical Corporation (Tokyo, JP)
A method for producing a polyester, comprising:…

Non-Painting and High-Gloss Polycarbonate Resin Composition
US 08669342 B2, March 11, 2014, With reactant having halo-C(=O)-halo, halo-C(=O)-O-, or -O-C(=O)-O- group, Min Han Kwak et al. / Hyundai Motor Company (Seoul, KR)
A polycarbonate resin composition comprising:…

Polymer, and Composition and Film Including the Same
US 08586689 B2, Nov. 19, 2013, Organic Si-free reactant is a carboxylic acid or derivative, Yoo Seong Yang et al. / Samsung Electronics Co., Ltd. KR
A polymer comprising a structural unit represented by the following Chemical…

Photosensitive Composition, Photosensitive Film, Photosensitive Laminate, Method of Forming a Permanent Pattern, and Printed Board
US 08557948 B2, Oct. 15, 2013, Phenolic reactant contains a carboxylic acid or carboxylic acid derivative thereof, Hideki Tomizawa et al. / FUJIFILM Corporation (Tokyo, JP)
A photosensitive composition, at least containing:…

Processes for Producing Polycarbonate and Molded Polycarbonate Articles
US 08546515 B2, Oct. 1, 2013, Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group, Minako Akita et al. / Mitsubishi Chemical Corporation (Tokyo, JP)
A process for producing a polycarbonate, the process comprising reacting one…

Process for Producing Polycarbonates and a Coordination Complex Used Therefor
US 08530615 B2, Sept. 10, 2013, With reactant which is devoid of a heterocyclic ring containing oxygen, selenium or tellurium atoms as ring members, S. Sujith et al. / SK Innovation Co., Ltd. (Seoul, KR)
A process for producing a polycarbonate comprising subjecting an epoxide…

Branched Biodegradable Polymers, a Macromonomer, Processes for the Preparation of Same, and Their Use
US 08492505 B2, July 23, 2013, Material contains a Group IVA metal atom (Ge, Sn, Pb), Pieter Jelle Dijkstra et al. / University of Twente (Enschede, NL)
A process for the preparation of branched biodegradable polymers comprising…

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