发明名称 |
PERFLUOROELASTOMER COMPOSITIONS AND METHODS OF PREPARING SAME |
摘要 |
The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative. One fluorine-containing elastomer composition herein, having a short crosslinking time, has perfluoroelastomers (A) having a tetrafluoroethylene unit, a perfluoralkylvinyl ether unit (a) and a monomer unit (b) having at least one kind selected from the group consisting of a nitrile group, a carboxyl group and an alkoxycarbonyl group, wherein the composition has two or more kinds of perfluoroelastomers (A) having differing contents of perfluoroalkylvinyl ether unit (a). |
申请公布号 |
KR20100016566(A) |
申请公布日期 |
2010.02.12 |
申请号 |
KR20097023825 |
申请日期 |
2008.04.16 |
申请人 |
GREENE, TWEED OF DELAWARE, INC.;DAIKIN INDUSTRIES, LTD. |
发明人 |
NOGUCHI TSUYOSHI;LUO JIAZHONG;MORIKAWA TATSUYA;KOMORI HIROKAZU;YAMATO TAKAFUMI;KOH MEITEN |
分类号 |
C08F214/18;C08F14/18;C08L27/12 |
主分类号 |
C08F214/18 |
代理机构 |
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代理人 |
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主权项 |
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