Rohm and Haas Company

Xun Tang

William Christopher Finch

Ralph Craig Even

Dennis Paul Lorah

Alvin Michael Maurice

Michael DeWayne Kelly

Robert Victor Slone

Hal Conley Morris

Albert Benner Brown

Barry Weinstein

Karl Allen Bromm

Linda Katherine Molnar

Xianliang Wu

Griffin M Gappert

James T Connaughton, I

Stephen A Crescimanno

James T Connaughton I

James Timothy Connaughton

Kelly Michael Dewayne Dewayne

Hal C Harris

Roger Hsin

The present invention provides flexible binder compositions comprising one or more polycarboxy emulsion copolymer has a measured Tg of 40&#xb0; C. or less, such as from &#x2212;45&#xb0; C. to 25&#xb0; C., and a polyol crosslinker. In one embodiment, the binder compositions comprising the polycarboxy emulsion copolymer can be used in making pultruded composites, such as sheets, for example, flexible gypsum board facing sheets, and flexible non-woven articles such as, for example, carpet backing.

Article comprising a flexible material of a non-woven, the flexible material treated with polycarboxy emulsion copolymer binder compositions

A binder composition comprising an emulsion copolymer, and a polyol crosslinker.

Binder composition

A composition that includes a polycarboxy oligomer or co-oligomer and a polyol.

Curable composition

A curable composition including a compound, containing as polymerized units, carboxylic acid groups, anhydride groups, or salts thereof, and a styrene, &#x3b1;-methyl styrene, butyl (meth)acrylate, methyl methacrylate, ethyl (meth)acrylate, mono-alkyl (meth)acrylamide, or di-alkyl (meth)acrylamide ethylenically unsaturated monomer having a solubility in water of less than 2 g/100 g water at 25&#xb0; C.; wherein the compound is either admixed with or copolymerized with a hydroxyl group-containing compound; the curable composition contains from about 3 to about 25 weight percent, based on the total weight of polymerized monomers in the curable composition, of the ethylenically unsaturated monomer; the ratio of the number of equivalents of the carboxylic acid groups, anhydride groups, or salts thereof to the number of equivalents of the hydroxyl groups is from about 1/0.01 to about &#x2153;, is provided. Also provided is a method for treating a substrate with the curable composition, articles prepared by the method of the invention.

Curable composition and use thereof

An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20&deg; C. to 80&deg; C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer, a method for providing a coated substrate wherein the coating contains the emulsion polymer having a Tg from &minus;20&deg; C. to 80&deg; C., and a method for improving the scrub resistance of a coating by including the emulsion polymer having a Tg from &minus;20&deg; C. to 80&deg; C. are also provided.

Coating composition

An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20&deg; C. to 80&deg; C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer is also provided.

A method for providing improved compaction, green density, green strength and surface finish properties in simulated stone and mineral-like materials from ceramic green bodies, based on addition of selected polymer additives during ceramic processing, is disclosed. Polymer additives having weight-average molecular weights from 30,000 to 1,000,000, glass transition temperatures from &minus;50 to &plus;90&deg; C., and low hygroscopicity are particularly useful in providing enhanced properties of ceramic products involving processing of large-size granule intermediates.

Method for preparing ceramic compositions

A polymeric binder for ceramic materials is provided. The polymeric binder has a temperature range for pyrolysis which is broader than that for polymeric binders conventionally used in ceramic materials. The broader pyrolysis range provides for gradual removal of the binder when a ceramic part containing the binder is heated. Gradual removal of the binder minimizes the formation of voids and cracking in the ceramic part. Voids or cracking can lead to defects in the part, and destruction of the part may occur during removal if a polymeric binder used in the part is rapidly decomposed into gases. Therefore the polymeric binder of the present invention provides for ceramic parts with fewer defects and less chance of destruction than occurs with polymeric binders conventionally used in ceramic parts.

Polymeric binder

Binders for ceramic products are provided which are crosslinkable and impart improved tensile strength to ceramic green bodies. The binders are particularly useful in tape-casting processes for the manufacture of thin ceramic sheets which are used as substrates for electronic packaging.

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Dresher, PA, United States of America

Xun Tang