Featured patents

Ethylene-Based Polymer Composition
US 08829115 B2, Sept. 9, 2014, Solid polymer derived from ethylene or propylene, Theresa J. Hermel-Davidock et al. / Dow Global Technologies LLC (Midland, US)
An ethylene-based polymer composition characterized by a bimodal or multimodal…

Method for Producing Polyarylene Sulfide, and Polyarylene Sulfide
US 08785571 B2, July 22, 2014, Solid polymer derived from alkali metal sulfide and halogenated aromatic reactant, e.g., polyarylene sulfide, etc., Shunsuke Horiuchi et al. / Toray Industries, Inc. JP
A method of producing a polyarylene sulfide (c) comprising heating a cyclic…

Meta-Stable State Nitrogen-Containing Polymer
US 08772412 B2, July 8, 2014, Polymer derived from monomer containing nitrogen atom as part of a heterocyclic ring, Li-Duan Tsai et al. / Industrial Technology Research Institute (Hsinchu, TW)
A meta-stable state nitrogen-containing polymer comprising a reaction product…

Multi-Arm Star Ethylene Polymers and Process for Making
US 08598270 B2, Dec. 3, 2013, Mixing of solid graft or graft-type copolymer derived from ethylenic reactants only with other solid polymer derived from ethylenic reactants only; or treating said mixture with chemical treating agent; or processes of forming or reacting; or the resultant product of any of the above operations, Andy H. Tsou et al. / ExxonMobil Research and Engineering Company (Annandale, US)
A multi-arm star ethylene polymer, comprising an ethylene/maleic anhydride…

Blends of Anionic Copolymers Suitable for Surface Size and Methods of Making the Same
US 08557925 B2, Oct. 15, 2013, Solid polymer derived from an aromatic hydrocarbon reactant, James W. Johnston et al. / Georgia-Pacific Chemicals LLC (Atlanta, US)
A sizing composition comprising a blend of an anionic styrene-maleic acid…

Amphiphilic Block Copolymer Formulations
US 08541511 B2, Sept. 24, 2013, Metal hydroxide, Jean-Pierre Disson et al. / Arkema Inc. (King of Prussia, US)
A process for forming a partially neutralized amphiphilic multiblock copolymer…

Crosslinked Polymers Containing Biomass Derived Materials
US 08519058 B2, Aug. 27, 2013, Polymer derived from monomer containing nitrogen other than: unsubstituted ammonium, acrylonitrile, acrylamide, methylolacrylamide and the corresponding methacryl materials, Henry Keith Chenault et al. / E I du Pont de Nemours and Company (Wilmington, US)
A crosslinked polymer comprising:…

Tacky Resin Composition and Pressure-Sensitive Adhesive Film or Sheet
US 08497321 B2, July 30, 2013, Mixture contains solid polymer derived from reactant containing chalcogen, Hisao Gonohe et al. / Du Pont-Mitsui Polychemicals Co., Ltd. (Tokyo, JP)
A tacky resin composition consisting of:…

Thermoplastic Molding Compositions With Improved Optical Properties
US 08501868 B2, Aug. 6, 2013, Substrate polymer derived from hydrocarbon containing plural unsaturation, Michel Pepers et al. / Styrolution GmbH (Frankfurt, DE)
A thermoplastic molding composition comprising a mixture…

Process Technology for Recovering Brominated Styrenic Polymers From Reaction Mixtures in Which They Are Formed And/Or Converting Such Mixtures Into Pellets or Into Granules or Pastilles
US 08450429 B2, May 28, 2013, Polymer derived from aromatic hydrocarbon monomer, e.g., styrene, etc., Ronny W. Lin et al. / Ablemarle Corporation (Richmond, US)
A process for producing pelletized brominated styrenic polymer, which process…

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