Fluoropolyether adhesive composition

Details Fluoropolyether adhesive composition Fluoropolyether adhesive composition

2008-04-10

2010-12-21

Peng, Kuo-Liang (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C428S448000

Reexamination Certificate

active

07855256

ABSTRACT:
An adhesive composition comprising the following components:(A) a linear polyfluoro compound having at least two SiH bonds per molecule and a perfluoropolyether residue in a main chain of the linear polyfluoro compound (A);(B) an organohydrogensiloxane having a fluorinated group and at least two hydrogen atoms each bonded to a silicon atom per molecule;(C) a compound of a platinum group metal;(D) hydrophobic silica powder;(E) an alkoxysilane represented by the following formula (1)in-line-formulae description="In-line Formulae" end="lead"?(RO)3—Si-T  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein R is a monovalent hydrocarbon group,T is a group represented by the formula, —OR1or —CHR2—COOR3, wherein R1is a monovalent hydrocarbon group, which may be the same with or different from R, R2is a hydrogen atom or a methyl group and R3is a monovalent hydrocarbon group; and(F) an organosiloxane having at least one SiH bond and at least one group selected from the group consisting of an epoxy group and a trialkoxysilyl group. The composition has no quality variation from lot to lot and gives a cured product having good resistance to solvents and heat, and durability.

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