Plastisol compositions
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United States of America Patent
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Aug 11, 1992
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N/A
app pub date -
Sep 26, 1991
filing date -
Sep 26, 1991
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Expired
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Abstract
Free radical-curable compositions comprising a plastisol component and a copolymer containing free anhydride functionality and, optionally, other reactive diluents are provided. In particular, curable compositions employing a plastisol, preferably a polyvinyl chloride-containing plastisol, and a low molecular weight crosslinking copolymer component having free anhydride functionality and which is a partial esterification product of a terminally ethylenically unsaturated compound and a polymerizable maleic anhydride are provided. The compositions of the invention yield improved adhesives, sealants, coatings, and insulators for a wide variety of substrates and may be employed in a variety of coatings and castings. Processes for preparing cured plastisol compositions from the disclosed free radical-curable compositions are also provided.
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