Ingenia Polymers Corporation

Dupont Dow Elastomers Inc.

Wedtech, (usa) Inc.

Salvatore D'Uva

John Lefas

George Kalanzakis

Zach Charlton

Jianzhong Hu

Larry Spino

Steven Richard Oriani

Larry Angelo Spino

Clifford C Lee

Arthur Tinson

Donald T Beuke

Andrew R Feder

Viraj Pramod Trilokekar

George Kalantzakis

Art Tinson

Ed Hindy

Viraj Triokekar

Sushanta Dhar Roy

Viraj Trilokekar

Ananda M Chatterjee

Tania M LaFrance

High concentration pelletized additive concentration or polymer stabilization agent or blends, and their preparations, used in various polymerization processes to enhance stability.

High concentration pelletized additive concentrates for polymer

A purging compound for purging an extruder of polyamides or other polar thermoplastic resins for transitioning to the extrusion of a non-polar thermoplastic resin, includes a non-polar base polymer compounded with an ethylene-methacrylate copolymer, up to 15% of a mineral, and about 1% of a suitable antioxidant.

Compound for purging residual polyamides from an extruder

Ultra-fine sodium bicarbonate powder (mean particle size less than 5 microns) is produced by the mixing and reaction under agitation at control temperatures of solutions of ammonium bicarbonate and sodium chloride. Precipitated sodium bicarbonate is separated by filtration as a slurry which is dried to produce ultra-fine sodium bicarbonate. Ultra-fine sodium bicarbonate produced by this method also exhibits a narrow particle size distribution which is advantageous in blowing agents for thermoplastic resins, to produce a foamed resin with small cells of a narrow size distribution.

Foaming agents for thermoplastic resins and method of preparing same

A method is described for preparing liquid concentrates of additives for incorporation in polymers, particularly polymers prepared in solution or slurry phase polymerization media. Additive concentrates according to the invention are characterized by a finer dispersion than would result from the direct addition of particulate or granular additives to the same liquid solvent.

Liquid compositions of polymer additives and method for their preparation

The invention pertains to a process for producing a cross-linked polyolefin foam in a continuous process using standard processing equipment without using a moisture cross-linking step after processing. In this method, a vinyl functional silane compound is melt grafted onto a low density polyethylene in the presence of a free radical generator. The resulting silane grafted polyethylene resin is mixed and melted with a blowing agent in a continuous process in the presence of water to form a vinyl functional silane foam.

Cross-linked polyolefin foam

A process aid masterbatch comprising a) 0.05 to 25 weight percent fluoropolymer; b) 0.2 to 10 weight percent of an organic soap selected from the group consisting of carboxylic acids having from 6 to 34 carbon atoms; salts thereof; hydrocarbon sulfonates having from 6 to 34 carbon atoms; and salts thereof; c) at least 5 weight percent mineral particulate; and d) a non-fluorinated melt-processable polymer improves the extrusion processability of non-fluorinated melt-processable polymers.

Process aid masterbatch for melt processable polymers

Novel molding compositions consisting essentially of a mixture of a skin-forming component and a foam core-foaming component physically dry-blended together. The skin-forming component comprises two distinct phases blended together, a high zero-shear viscosity material and a low zero-shear viscosity material. The foam core-forming component preferably comprises a foamable polymeric material including a suitable blowing agent. In a preferred embodiment, the three materials are selected from suitable homopolymers and copolymers of ethylene.

Foamable compositions for rotational molding

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Brantford, Canada

Salvatore D'Uva