CELL STABILIZER FOR VINYL RESIN FOAMS

Production of cellular vinyl foams having desirably low density, good physical characteristics, fine uniform cell structure and the capability for production with short cycle times is achieved by incorporating a new cell stabilizer additive in a foamable precursor composition, such as a plastisol co...

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Bibliographic Details
Main Authors SCHWARTZ, NELSON N, HUNTZINGER, ELWOOD E
Format Patent
LanguageEnglish
Published 16.03.1976
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:Production of cellular vinyl foams having desirably low density, good physical characteristics, fine uniform cell structure and the capability for production with short cycle times is achieved by incorporating a new cell stabilizer additive in a foamable precursor composition, such as a plastisol comprising a vinyl resin, plasticizer and blowing agent. The cell stabilizer additive is one or more of the copolymers obtained by the copolymerization of (A) a monomeric C2 to C6 methacrylate and (B) a nitrogen-containing, ethylenically unsaturated monomer in an amount providing nitrogen in the copolymerizate in the range of 0.1 to 10 percent by weight.
Bibliography:Application Number: CA19720160155