Rohm and Haas Company

Scott Warren Reading

Eugene Patrick Dougherty

John Robert Patterson

Paul Ralph Van Rheenen

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

Compositions and processes for preparing extrudable powder blends containing at least one vinyl chloride resin and a cellulosic material are provided. More specifically, compositions and processes for preparing extrudable free-flowing powder blends containing PVC and wood flour (WF) are also provided for preparing foamed or nonfoamed extrudates. The processes provided herein incorporate components which may contain up to a total of 25 weight percent water. Processes for preparing foamed extrudates are also provided wherein a cooling fluid is used to increase the expansion ratio of the foam. Finally provided are composites having an extrudable thermoplastic substrate and at least one capstock layer disposed thereon containing a PVC/WF composition.

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Burlington, NJ, United States of America

Scott Warren Reading