Rohm and Haas Company

Other

Paul Ralph Van Rheenen

Willie Lau

Karl Allen Bromm

Michael T Petr

Veera Nelliappan

David Michael Fasano

Steven James Broadwater

Jack C Thibeault

David A Larson

Seth T Stewart

Ling Li

Eric Gustave Lundquist

Kim Sang Ho

Michael DeWayne Kelly

Chuen-Shyong Chou

Thomas Glenn Madle

Scott Warren Reading

Brian H Clare

Mark C Bricker

Sekhar Sunduram

Steven P Broadwater

Veera D Nelliappan

Scott W Reading

Steven Broadwater

Seth S Stewart

A processing aid for foam molding comprising a copolymer obtained by the polymerization of from 50% to 100% by weight total of one or more monomers selected from the group consisting of ethyl methacrylate and propyl methacrylate, and 0 to 50% by weight of other copolymerizable monomers, the copolymer having the following properties: (a) a reduced viscosity measured according to ASTM D2857 at 1 mg/mL in chloroform at 25&#xb0; C. of greater than 8 dL/g and (b) a Tg equal to or less than 77&#xb0; C. is provided.

Processing aid for foam molding, a vinyl chloride resin-based foam molding composition comprising the same and a foam molded product

A processing aid for foam molding comprising a copolymer obtained by the polymerization of 30 to 90% by weight of methyl methacrylate, 10 to 70% by weight total of one or more monomers selected from the group consisting of butyl methacrylate (BMA), pentyl methacrylate (PMA) and hexyl methacrylate (HMA), and 0 to 20% by weight of other copolymerizable monomers, the copolymer having a reduced viscosity measured according to ASTM D2857 at 1 mg/mL in chloroform at 25&#xb0; C. of greater than 8 dL/g is provided.

A multi-stage emulsion processing aid polymer comprising one or more functionalized ethylenically unsaturated monomer into the emulsion polymerization reactor, wherein the functionality is selected from the group consisting of &#x3b2;-keto esters, &#x3b2;-keto amides, &#x3b2;-diketones, cyanoacetic esters, malonates, nitroalkanes, &#x3b2;-nitro esters, sulfonazides, thiols, thiol-s-triazines, and amine, where the functionality is incorporated into polymers by polymerizing, ethylenically unsaturated monomers containing these functionalities or by post functionalization of a polymer with additional reactions after polymerization in one of the first or second stages. Foamable halogenated polymers comprising the multi-stage emulsion processing aid polymer is also provided. Also provided are methods for making the multi-stage emulsion processing aid polymer and foamable halogenated polymers.

Processing aids and polymer formulations containing the same and method for producing the same

The present invention provides vinyl halide polymer thermoplastic polymer compositions comprising a multi-stage, or, preferably, two-stage acrylic copolymer polymeric additive having (A) a high Tg, high molecular weight first stage polymer that is free of, in copolymerized form, vinyl aromatic monomers, and having (B) a low Tg, low molecular weight second stage polymer of copolymerized vinyl aromatic containing monomers, wherein the multi-stage acrylic copolymer can be isolated by coagulation and drying and provides compositions having both melt strength and lubrication in thermoplastic processing.

Thermoplastic compositions containing multi-stage copolymers as melt strength process aids with lubrication properties

A base resin including from 30 to 70 percent by weight impact modified acrylic resin having a Tg from 60 to 150&#xb0; C.; from 70 to 30 percent by weight polyvinylchloride (PVC), wherein the weight percentages of the impact modified acrylic resin and the polyvinylchloride are based on the combined weight of the impact modified acrylic resin and the polyvinylchloride; from 0.25 to 4 weight percent of anti-melding additive based on the total base resin weight; and from 0.5 weight percent to 25 weight percent colorant based on total base resin weight is provided. Also provided are capstock compositions including one or more base resins, a process for making a capstock, and capstock produced thereby.

Polymer composition, capstock comprising the same and a process to make such capstock

A thermoplastic composition comprising the melt blending product of one or more thermoplastic polymers; and from 2 to 20 PHR, of one or more gloss reducing additives wherein each gloss reducing additive comprises a (meth)acrylate copolymer having a glass transition temperature of greater than or equal to 40&#xb0; C. and 0.001 to 0.04 PHM derived from one or more crosslinking monomers and/or graft-linking agents having two or more ethylenically unsaturated radicals capable of free-radical polymerization, wherein a test specimen produced from the thermoplastic composition has roughness according to DIN 4768 of Ra greater than or equal to 0.6 microns, Rz greater than or equal to 6 microns, Rmax greater than or equal to 7 microns, and a gloss less than 65, 75 degree angle, is provided. Methods for producing the thermoplastic compositions, methods for producing articles from the thermoplastic compositions and such articles are also provided.

Thermoplastic composition, method of producing the same, and articles made therefrom

A halogenated polymer containing a functionalized polymer and optionally a blowing agent.

Polymer composition

The present invention relates to an acrylic foam composition comprising an acrylic polymer and an acrylic processing aid which exhibits increased flexibility characteristics over other types of foam compositions.

Flexible acrylic foam composition

The present invention relates to: a method of preparing a capstock layer that includes a comb copolymer; a method of preparing a multi-layered polymeric composite, at least one layer of which is a capstock layer; and a multi-layered composite formed by the method of preparing a multi-layered polymeric composite.

Method for preparing a multi-layered polymeric composite and a multi-layered composite produced thereby

A coating composition including a polyaniline particle and a binder is provided. The polyaniline particle contains a core polymer particle with strong acid groups and an attached polyaniline polymer, and has a particle diameter in a select range. Coatings prepared from the coating composition may be employed to provide corrosion resistance to metal substrates. A process for preparing the polyaniline particle and an article including a coating prepared from the coating composition are also provided.

Polyaniline coating composition

An aqueous coating composition comprising a comb copolymer is disclosed. A method of forming a coating from the aqueous coating composition, and a coating formed by that method are also disclosed, as is a method of forming the comb copolymer. The comb copolymer is characterized in that aqueous dispersions of the comb copolymer have a Hard/Soft Balance Advantage value of at least 25%. The aqueous coating composition is capable of producing coatings having an excellent balance of hard and soft properties.

Aqueous dispersions of comb copolymers and coatings produced therefrom

An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.

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Warminster, PA, United States of America

Paul Ralph Van Rheenen