发明名称 |
Thermally reversible copolymers and process for the preparation thereof |
摘要 |
The invention disclosed herein provides a novel thermally reversible copolymer having up to about 11 percent by weight of an N-(alkoxymethyl)acrylamide, a diene-containing synthetic rubber and a metal. The thermally reversible copolymer can be blended with conventional styrene-butadiene rubbers to improve the green strength thereof. Also disclosed herein is a process for improving the green strength of styrene-butadiene rubber which includes the steps of charging a reaction vessel with water, an emulsifier, an initiator, an N-(alkoxymethyl)acrylamide monomer and a vinyl monomer where one is desired, purging the vessel with an inert gas, charging a diene monomer and an activator to the reaction vessel, polymerizing the monomers to form a copolymer latex, coagulating the latex with an aqueous metal salt to form a thermally reversible polymer and compounding the thermally reversible polymer with styrene-butadiene rubber.
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申请公布号 |
US4366291(A) |
申请公布日期 |
1982.12.28 |
申请号 |
US19810303214 |
申请日期 |
1981.09.18 |
申请人 |
THE FIRESTONE TIRE & RUBBER COMPANY |
发明人 |
GUNESIN, BINNUR;HAMED, GARY R.;KANG, JUNG W.;SCHULZ, DONALD N. |
分类号 |
C08F8/42;C08L9/06;C08L25/10;(IPC1-7):C08L33/24 |
主分类号 |
C08F8/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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