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    • 10. 发明授权
    • Primer composition
    • 底漆组成
    • US4968727A
    • 1990-11-06
    • US461856
    • 1990-01-08
    • Junichiro WatanabeMakoto Sawada
    • Junichiro WatanabeMakoto Sawada
    • C08K3/36C08K5/17C08K5/544C08L83/04C08L83/08C09D5/00C09D183/08C09J5/00C09J5/02C09J183/00C09J183/08
    • C09D183/08
    • A primer composition which is particularly effective to strongly bond fluorosilicone rubbers to metal, plastics, fibers, and the like, comprising(A) 100 parts by weight of a polyorganosiloxane represented by formula (I): ##EQU1## wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, 10 to 50 mol % of the hydrocarbon groups of R.sup.1 being perfluoroalkyl and 0.01 to 1.0 mol % of the hydrocarbon groups of R.sup.1 being vinyl, and a is a number of from 1.98 to 2.01, and which has a viscosity as measured at 25.degree. C. of 1,000,000 cSt or more;(B) 5 to 100 parts by weight of a silica filler;(C) 0.5 to 50 parts by weight of a compound represented by formula (II): ##STR1## wherein X represents an organosilicon-containing group or a hydrocarbon-containing group, R represents methyl or hydrogen, and n is an integer of 1 or larger; and(D) an organic solvent.
    • 特别有效地将氟硅氧烷橡胶与金属,塑料,纤维等紧密结合的底漆组合物,其包含(A)100重量份由式(I)表示的聚有机硅氧烷:其中R 1表示 取代或未取代的一价烃基,R 1的烃基为10〜50摩尔%为全氟烷基,0.01〜1.0摩尔%的R 1为烃基为乙烯基,a为1.98〜2.01, 在25℃下测得的粘度为1,000,000cSt以上; (B)5〜100重量份二氧化硅填料; (C)0.5〜50重量份由式(II)表示的化合物:其中X表示含有机硅基团或含烃基团,R表示甲基或氢原子,n表示 1或更大的整数; 和(D)有机溶剂。