Rohm and Haas Company

Dow Global Technolgoies LLC

Arkema Inc.

Adam Wade Freeman

Ann Elizabeth Evans

Wei-Wen Tsai

Joseph Martin Rokowski

James J Henry

Hongwei Shen

Robert Baumann

Stephen Crescimanno

David A Seiler

Marc Schmitz

Audrey Brenda Liss

Philip M Imbesi

Victoria Anne Demarest

Sipei Zhang

Victoria A Demarest

The invention relates to a heterogeneous, co-continuous copolymer composition of vinylidene fluoride and at least one other comonomer. Preferred comonomers are hexafluoropropylene and perfluoroalkylvinyl ether. The co-continuous morphology is provide by first forming a first phase polymer, then adding one or more comonomers before half of the original monomer stream has been added, and at an effective level to cause phase separation of the copolymer. The co-continuous morphology provides a means for incorporating a high level of comonomer into the copolymer with little or no adverse effect on the melting temperature. The morphology also provides the copolymer composition with a unique combination of properties, including a high melting point, good flexibility and good low temperature impact resistance. The unique properties of the polymer make it useful in end-use application where those properties provide performance advantages, such as in the wire and cable market, and in oil and gas applications.

Heterogeneous, co-continuous copolymers of vinylidene fluoride

The present invention provides substantially nonionic brush polymers having pendant polyether groups, preferably poly(alkylene glycol) groups, which polymers are useful as synthetic polymer substitutes for cellulose ethers in mortars and hydraulic binders. The brush polymers are preferably crosslinked, such as with ethylene glycol di(meth)acrylates.

Synthetic polymer rheology modifier and water retention agent replacement for cellulose ether in cement compositions

The present invention provides aqueous coating compositions comprising one or more emulsion copolymer made from itaconic acid, a sulfonic acid or sulfonate ester monomer and an additional acid monomer which is a carboxylic acid and having a glass transition temperature of from &#x2212;45&#xb0; C. to &#x2212;10&#xb0; C., and one or more pigment, opacifier, filler, extender, or mixture of any of these at a % PVC of from 20 to 55, preferably 30 to 50, wherein coatings made from the coating compositions provide improved resistance to water swelling and dirt pickup resistance. The improvements are observed regardless of whether the compositions contain or are substantially free of zinc or divalent metal ions, or salts or compounds containing them. The present invention also provides roofing substrates coated with the aqueous compositions.

Itaconic acid polymers for improved dirt and water resistance for elastomeric wall and roof coatings

The present invention provides filled aqueous caulk and sealant compositions made from high solids aqueous binders chosen from copolymers having a mixture of backbone acid and hydroxyl groups that are copolymerized from 0.5 to 7.5 wt. %, based on total monomer weight, of an hydroxyl group containing monomer, and mixed backbone acid copolymers that are copolymerized from methacrylic acid (MAA) with a second acid monomer having a lower pKa than the pKa of MAA. Preferred, compositions comprise one or more organosilane exhibit the adhesion and joint movement capability required by ASTM C-920-08, as well as good weatherability and aged wet adhesion to glass, even at a filler to binder ratio of 0.2:1 to 4:1.

Plasticizer free caulks and sealants having improved aged wet adhesion

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Chalfont, PA, United States of America

Adam Wade Freeman