Vulcanizable polymeric compositions containing a zinc dimethacrylate adjuvant and method for preparing the adjuvant
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United States of America Patent
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Dec 15, 1987
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N/A
app pub date -
Apr 17, 1986
filing date -
Sep 21, 1982
priority date (Note) -
Expired
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Abstract
Vulcanizable polymeric compositions comprising certain rubbery polymers or polymer blends, a zinc dimethacrylate adjuvant having a surface area of from about 3.7 to about 5.4 m.sup.2 /g or more and a peroxide curing agent are provided. Polymeric compositions which contain 25 parts by weight or more of the zinc dimethacrylate adjuvant per 100 parts by weight of rubbery polymer in the absence of reinforcing fillers exhibit excellent strength and hysteresis characteristcs when cured. The surface area of the zinc dimethacrylate adjuvant along with its method of preparation are extremely important factors in the excellent properties obtained when polymeric compositions containing the adjuvant are cured.
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