Multifunctional metallic coagents
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United States of America Patent
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May 20, 2003
Grant Date -
N/A
app pub date -
Nov 14, 2001
filing date -
Oct 23, 2001
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Expired
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Abstract
This invention provides the multifunctional coagents of the metallic salt of unsaturated carboxylic acid that obtained by the reaction from two mols of mono-basic acid and two mols of di-basic acid as an unsaturated carboxylic acid, and three mols of divalent metal oxide. For making these multifunctional coagents of metallic salt of unsaturated carboxylic acid, one kind or two kinds of mono-basic acid can be used among acrylic acid and methacrylic acid as an unsaturated carboxylic acid. As a di-basic acid, only one kind can be used among maleic acid and fumaric acid. And, as a metal complex for making this multifunctional metallic coagents, the divalent metal oxide such as zinc oxide, magnesium oxide and calcium oxide that can be used. One kind or two and over kinds of metal oxide can be used. This multifunctional metallic salts of unsaturated carboxylic acid crosslinking a rubber with an assistance of peroxide as an initiator in the process of react, that generates the crosslink bond in the formation of an ionic bond that giving a good heat stability and can slip along the hydrocarbon chain that having the superior tensile and tear strength to the cured rubber.
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