UV and moisture-curable organopolysiloxane compositions, cured p

Details UV and moisture-curable organopolysiloxane compositions, cured p UV and moisture-curable organopolysiloxane compositions, cured p

1993-08-27

1995-01-03

Berman, Susan W.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 12, 522 39, 522 40, 522 43, 522 44, 522 45, 522 46, 522 68, 522 99, 522 17, 522 83, 528 32, 526302, 526279, C08F 250, C08G 7718, C08G 7720

Patent

active

053787340

ABSTRACT:
A UV and moisture-curable organopolysiloxane composition comprising (i) an organopolysiloxane terminated with a radical of formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom or monovalent hydrocarbon radical, each of R.sup.2 and R.sup.3 is a divalent hydrocarbon radical which may contain a NH bond or ether bond, each of R.sup.4 and R.sup.5 is a monovalent hydrocarbon radical which may contain an ether bond, and a is equal to 0 or 1, (ii) a photo-polymerization initiator, and (iii) a curing catalyst. The composition readily cures either upon exposure to UV radiation or upon contact with moisture and from the surface to the deep interior within a short time, yielding cured products having satisfactory physical properties.

REFERENCES:
patent: 4064027 (1977-12-01), Gant et al.
patent: 4267297 (1981-05-01), Hanada et al.
patent: 4579636 (1986-04-01), Inoue et al.
patent: 4675346 (1987-06-01), Lin et al.
patent: 5091483 (1992-02-01), Mazurek et al.
patent: 5246979 (1993-09-01), Lutz et al.

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