Curable organopolysiloxane compositions comprising microencapsul

Details Curable organopolysiloxane compositions comprising microencapsul Curable organopolysiloxane compositions comprising microencapsul

1984-10-19

1986-08-05

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

524860, 528 17, 528 18, 528 25, 528901, C08G 7704

Patent

active

046044442

ABSTRACT:
Organopolysiloxane compositions readily cross-linked into elastomers, e.g., elastomeric seals, and advantageously formulated in either one- or two-component packages, are comprised of (A) a polyhydroxylated polysiloxane, (B) a polyacyloxysilane cross-linking agent and (C) a hardening accelerator therefor, said hardening accelerator being protectively microencapsulated within impermeable outer skin membranes adopted to be chemically or physically disrupted, e.g., by heat, irradiation or mechanical breaking, to permit the release of said accelerator (C) therefrom and consequent curing of the composition.

REFERENCES:
patent: 3133891 (1964-05-01), Ceyzeriat
patent: 4370160 (1983-01-01), Ziemelis
patent: 4461854 (1984-07-01), Smith
patent: 4508888 (1985-04-01), Letoffe et al.
patent: 4528354 (1985-07-01), McDougal
patent: 4532315 (1985-07-01), Letoffe et al.
Chemical Abstracts, 106014d, vol. 79, No. 18, (1973).
Chemical Abstracts, 106015e, vol. 79, No. 18, (1973).

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