TH62162B - Compound of organic polysiloxane that can be cured at room temperature. - Google Patents

Abstract

DC60 RTV mixture, organopolysiloxane, containing (A) organopolysiloxane with at least two Si-OH radicals or organoxy radicals, and where Have a viscosity of at least 500 mPa-s at 25 ° C, (B) organosylane with at least 2 radical organotin, (c) organotin catalytic. And (D) organopolysiloxane containing Si-OH radical with a viscosity of up to 300 mPa-s at 25 ° C. It has longevity stability. And resistance to discoloration in Uncured condition It shows rubber elasticity and adhesion in the cured condition. RTV mixtures of organic polysiloxane containing (A) organopolysiloxane with Si-OH radicals. OR an organosylane with at least 2 radicals and a viscosity of at least 500 mPa-s at 25 ํ C, (B) organosilane with at least 2 radical organosilanes. Digal, (c) organotin catalits and (D) organopolysiloxane with Si-OH radical with viscosity up to 300 mPa-s at 25 ° C. It has a constant service life. And resistance to discoloration in Uncured condition And will show rubber elasticity and adhesion in the cured condition.

Claims (2)

1. A curable organopolysiloxane composition at room temperature containing (A) 100 parts by weight of organopolysiloxane with at least 2 radical Si-OH. Radicals, or radial organs, at least 2 radials in a molecule. and at a viscosity of at least 500mPa-s at 25 °C, (B) 0.5 to 20 parts by weight of organosilanes with at least 2 radical organosilanes in molecules or partially hydrolyze those molecules (C) 0.01 to 10 parts by weight of catalyst organotins, and (D) 1 to 30 parts by weight of the organo. Polysiloxane with radical-containing Si-OH Represented by the formula of the average element(1): (HO)a(R1O)bRcSiO(4-a-b-c)/2 (1), where the independent R and R1 groups are monovalent radial hydrocarbons. substituted or irreplaceable, subscripts a, b and c are digits that are 0.01<0.2,0(formula)b<0.4, 1.7 2. Mixture of claim 1 in which at least one organopolysiloxane (A) is >