Acetoxysiloxane adhesion promoter and primer composition

Details Acetoxysiloxane adhesion promoter and primer composition Acetoxysiloxane adhesion promoter and primer composition

1974-12-16

1976-06-01

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106287SB, 260 336SB, 260 338SB, 260 465G, 260 465UA, C08K 507

Patent

active

039608000

ABSTRACT:
Reaction products, containing at least one vinyl group, which are obtained by mixing under anhydrous conditions ##EQU1## where u is 0 to 15, v is 0 to 7 and u + v is 1 to 15 and ##EQU2## where m is 0 to 5, and R.sup.1 is methyl, ethyl, or vinyl are adhesion promoters which are useful in primer compositions. The primer compositions are organic solvent solutions with 50 to 99.9 weight percent organic solvent, with the balance being made up of 5 to 100 weight percent of the adhesion promoter, 0 to 50 weight percent of an alkylsilicate and 0 to 50 weight percent of an organotitanate. An example of a primer composition would be a solution of 90.0 weight percent inhibited 1,1,1-trichloroethane with 10.0 weight percent of equal weight amounts of an adhesion promoter where u has an average value of 2, v has an average value 1, and m has an average value of about 0.7, ethylpoly-silicate and bis(acetylacetonyl)diisopropyltitanate. The primer compositions are useful in adhering room temperature vulcanizable silicone elastomers to substrates such as aluminum.

REFERENCES:
patent: 3061575 (1962-10-01), Russell
patent: 3240731 (1966-03-01), Nitzsche et al.
patent: 3719635 (1973-03-01), Clark et al.
patent: 3873334 (1975-03-01), Lee

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