公开(公告)号：WO2008106189A1

公开(公告)日：2008-09-04

申请号：PCT/US2008/002631

申请日：2008-02-27

Applicant: DUPONT PERFORMANCE ELASTOMERS L.L.C. ,  BAUERLE, John, G. ,  BISH, Christopher, J. ,  DOBEL, Theresa, M. ,  TANG, Phan, L.

Inventor： BAUERLE, John, G. ,  BISH, Christopher, J. ,  DOBEL, Theresa, M. ,  TANG, Phan, L.

IPC: C08F214/26 ,  C08L27/18 ,  C08K5/13

CPC classification number: C08F214/26 ,  C08K5/0025 ,  C08K5/13

Abstract: Compositions of fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, a first cure site selected from the group consisting of i) trifluoroethylene, ii) 3,3,3-trifluoropropene-1, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene, and a second cure site selected from the group consisting of i) copolymerized units of a brominated cure site monomer, ii) copolymerized units of an iodinated cure site monomer, iii) copolymerized units of a chlorinated cure site monomer, iv) brominated endgroups, v) iodinated endgroups and vi) a combination of any of i) - v) are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance, and excellent adhesion to metal substrates. Optionally, the fluoroelastomers may be dual cured by both a polyhydroxy system and an organic peroxide system.

Abstract translation: 包含四氟乙烯，丙烯的共聚单元的含氟弹性体的组合物，选自i）三氟乙烯，ii）3,3,3-三氟丙烯-1，iii）1,2,3,3,3-五氟丙烯的第一固化位点 ，iv）1,1,3,3,3-五氟丙烯和v）2,3,3,3-四氟丙烯，和第二固化位点，其选自i）溴化固化部位单体的共聚单元， ii）碘化固化部位单体的共聚单元，iii）氯化固化部位单体的共聚单元，iv）溴化端基，v）碘化端基和vi）i）-v）任意一种的组合可以用多羟基固化 系统。 所得到的固化物具有优异的耐碱性流体，优异的拉伸性能和耐压缩变形性以及对金属基材的优异粘附性的组合。 任选地，含氟弹性体可以通过多羟基体系和有机过氧化物体系双重固化。