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    • 4. 发明授权
    • Fluoroelastomeric compositions
    • 氟弹性组合物
    • US5902857A
    • 1999-05-11
    • US733938
    • 1996-10-18
    • Ivan WlassicsVito TortelliWalter NavarriniMargherita Albano
    • Ivan WlassicsVito TortelliWalter NavarriniMargherita Albano
    • C09K3/10C08F8/00C08K5/00C08K5/01C08K5/02C08K5/04C08K5/14C08K5/49C08K5/54C08K5/56C08K5/57C08L27/12
    • C08K5/54C08K5/0025C08K5/14C08K5/57
    • Curing systems for fluoroelastomers curable by peroxidic route which comprise bromine, optionally iodine, the bromine always being higher than iodine, comprising as essential elements:(I) a curing agent comprising a bis-olefin having general formula: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, equal to or different from each other, are H or alkyl C.sub.1 -C.sub.5 ; Z is a linear or branched alkylenic or cycloalkylenic radical C.sub.1 -C.sub.18, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylenic radical.(II) a metallorganic hydride of formula: ##STR2## wherein: M is selected from Sn, Si, Ge, Pb; x is an integer from 1 to 3; y, z are zero or integers from 1 to 3, with the proviso y+z=4-x; w is an integer from 1 to 3; the R groups, equal to or different from each other, are selected from: alkyls C.sub.1 -C.sub.4, aryls C.sub.6 -C.sub.12, arylalkyls and alkylaryls C.sub.7 -C.sub.14, optionally containing nitrile and/or hydroxyl groups.
    • 包含溴,任选碘,总是高于碘的溴可以固化的含氟弹性体的固化体系包含作为必需元素:(I)包含具有以下通式的双烯烃的固化剂:其中:R1,R2,R3 相同或不同的R 4,R 5,R 6为H或C 1 -C 5烷基; Z是任选含有氧原子的直链或支链亚烷基或环烷基C1-C18,或(全)氟聚氧亚烷基。 (II)下式的金属有机氢化物:其中:M选自Sn,Si,Ge,Pb; x是1至3的整数; y,z为零或1至3的整数,条件是y + z = 4-x; w为1〜3的整数; R基彼此相同或不同,选自烷基C1-C4,芳基C6-C12,芳基烷基和烷基芳基C7-C14,任选地含有腈和/或羟基。
    • 9. 发明授权
    • Peroxide curable fluoroelastomers
    • 过氧化物固化的含氟弹性体
    • US06323283B1
    • 2001-11-27
    • US09334562
    • 1999-06-21
    • Marco ApostoloMargherita Albano
    • Marco ApostoloMargherita Albano
    • C08L2712
    • C08L27/12C08L27/16C08L2205/02C08L2666/04
    • Curable fluoroelastomers formed from the following fluoroelastomer mixtures: a) from 20 to 70% by weight of a fluorolastomer having the Mooney viscosity value, ML (1+10) at 121° C., of greater than 60 points and containing from 0.01 to 3% by weight of iodine; b) from 0 to 70% by weight of a fluoroelastomer having the Mooney viscosity value, ML (1+10) at 121° C., in the range of 20-60 points and containing from 0.2 to 5% by weight of iodine; c) from 5 to 60% by weight of a fluoroelastomer having the Mooney viscosity value, ML (1+10) at 121° C., in the range of 1-20 points and containing an iodine percentage by weight greater than 0.3; said Mooney viscosity ML (1+10) at 121° C. determined according to the ASTM D 1646 method; where said fluoroelastomers comprise monomeric units derived from a bis-olefin.
    • 由以下含氟弹性体混合物形成的可固化的含氟弹性体:a)20至70重量%的具有门尼粘度值(121℃下的ML(1 + 10))大于60分,含有0.01至3 重量百分比的碘; b)0至70重量%的具有门尼粘度值,121℃下的ML(1 + 10),20-60点范围内且含有0.2至5的含氟弹性体 重量%的碘; c)5至60重量%的具有门尼粘度值,121℃下的ML(1 + 10)的含氟弹性体,在1-20分的范围内,并且含有碘百分比为 重量大于0.3; 根据ASTM D1646方法测定121℃下的门尼粘度ML(1 + 10);其中所述含氟弹性体包含衍生自双烯烃的单体单元。