Organosiloxane gel-forming compositions and use thereof

Details Organosiloxane gel-forming compositions and use thereof Organosiloxane gel-forming compositions and use thereof

1991-03-07

1992-09-08

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 32, C08G 7706

Patent

active

051459337

ABSTRACT:
Non-friable siloxane gels which can be used for gel dressings and in medical prostheses are made from compositions comprising (A) alkenyl-containing polydiorganosiloxanes; (B) hydrosilicon compounds having at least 3 Si-H groups; (C) SiH end-blocked polydiorganosiloxanes and (D) a catalyst. These compositions cure rapidly at room temperature having a ratio (RHAlk) of SiH:Si-Alkenyl of from 3:1 to 20:1, the percentage of silicon-bonded H atoms provided by (C) not being less than 81.36-(3.6.times.RHAlk) and having a value of from 10% to 90%.

REFERENCES:
patent: 3663973 (1972-05-01), Spence
patent: 4535141 (1985-08-01), Kroupa
patent: 4703070 (1987-10-01), Locko et al.

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