Addition curable silicone PSA with high lap shear strength

Details Addition curable silicone PSA with high lap shear strength Addition curable silicone PSA with high lap shear strength

1995-05-25

1996-11-19

Glass, Margaret W.

Stock material or miscellaneous articles

Composite

Of silicon containing

525478, B32B 906, C08F28312

Patent

active

055761100

ABSTRACT:
An addition curable silicone pressure sensitive adhesive composition having high lap shear strength particularly at elevated temperatures is described; containing (A) an aromatic soluble, MQ resin or resinous copolymer having R.sub.3 SiO.sub.1/2 and SiO.sub.4/2 ; (B) an alkenyl-containing polydiorganosiloxane having a viscosity of at least about 3,000 centipoise at 25.degree. C.; (C) a set of multi-functional silicones as crosslinkers; (D) from 0 to about 100 parts by weight of a reaction mixture containing from 60 to 100 parts by weight of Component (A) and from about 40 to 0 parts by weight of Component (B); (E) a hydrosilylation catalyst; and optionally (F) from 0 to about 40% by weight of an organic solvent.

REFERENCES:
patent: 3983298 (1976-09-01), Hahn et al.
patent: 4774297 (1988-09-01), Murakami et al.
patent: 4988779 (1991-01-01), Medford et al.
patent: 5169727 (1992-12-01), Boardman
patent: 5190827 (1993-03-01), Lin
patent: 5254644 (1993-10-01), Kobori et al.
patent: 5292586 (1994-03-01), Lin et al.

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