Addition products prepared from mercapto-functional polyhydric a

Details Addition products prepared from mercapto-functional polyhydric a Addition products prepared from mercapto-functional polyhydric a

1986-01-03

1987-03-24

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

528 28, 556419, 556422, C07F 708, C07F 718

Patent

active

046526641

ABSTRACT:
Disclosed is a free-radical addition product of a mercapto-functional polyhydric alcohol and a vinyl-type silane having at least one hydrolyzable group directly attached to a silicon atom, the addition product prepared by reacting the mercapto-functional polyhydric alcohol and the vinyl-type silane in the presence of a free radical initiator. The addition product contains at least two hydroxyl groups bonded to carbon atoms and at least one silicon atom bonded to at least one hydrolyzable group.
The resulting polyhydroxyl-functional addition products can be chain extended using organic polyisocyanates to produce isocyanate-terminated compounds which also contain silicon atoms directly bonded to hydrolyzable groups along the molecule chains.

REFERENCES:
patent: 3654332 (1972-04-01), Berger
patent: 3686326 (1972-08-01), Oswald et al.
patent: 4033934 (1977-07-01), Berger
patent: 4269991 (1981-05-01), Homan et al.
patent: 4278585 (1981-07-01), Stacy et al.
patent: 4384132 (1983-05-01), Schwarz et al.

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