| 发明名称 |
CURABLE FLUOROELASTOMER COMPOSITION |
| 摘要 |
Compositions comprising fluoroelastomers having copolymerized units of a cyano-containing cure site monomer are cured (i.e. crosslinked) with a fluoropolymer having pendant sulfonyl azide groups. The latter fluoropolymer comprises copolymerized units of a fluoroalkanesulfonyl azide of formula CF2═CF—(O)p—Rf—(CH2)n—SO2N3, wherein p=0 or 1; n=0-4; and Rf is a C1-C16 perfluoroalkyl or perfluoroalkoxy group. The crosslinks are tetrazole rings formed by the reaction of the pendant sulfonyl azide groups on the fluoropolymer with pendant cyano groups on the fluoroelastomer. |
| 申请公布号 |
US2016280902(A1) |
申请公布日期 |
2016.09.29 |
| 申请号 |
US201415035607 |
申请日期 |
2014.11.24 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
Hung Ming-Hong |
| 分类号 |
C08L27/22;C08L41/00 |
主分类号 |
C08L27/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A curable composition comprising:
A) a fluoroelastomer comprising copolymerized units of a cyano group-containing cure site monomer; and B) at least one fluoropolymer comprising copolymerized units of a fluoroalkanesulfonyl azide of formula CF2═CF—(O)p—Rf—(CH2)n—SO2N3, wherein p=0 or 1; n=0-4; and Rf is a C1-C16 perfluoroalkyl or perfluoroalkoxy group. |
| 地址 |
Wilmington DE US |
