Elastomeric foam

Details Elastomeric foam Elastomeric foam

1982-06-25

1984-09-25

Anderson, Philip E.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 453, 264 50, 521126, 521154, B29D 2700

Patent

active

044736673

ABSTRACT:
A simplified method of manufacturing a silicon elastomeric foam comprises mechanically generating a stable froth of an aqueous silicone emulsion, while adding surfactant and thickener, then removing the water from the stable froth. The emulsion consists essentially of anionically stabilized hydroxyl endblocked polydiorganosiloxane, colloidal silica, an organic tin compound, and water, the emulsion having a pH in the range of 9 to 11.5 inclusive. The dried foam is an elastomeric, cellular structure possessing typical silicone elastomer heat stability.

REFERENCES:
patent: 2432353 (1947-12-01), Talalay
patent: 2760941 (1956-08-01), Iler
patent: 2891920 (1959-06-01), Hyde et al.
patent: 3294725 (1966-12-01), Findlay et al.
patent: 3311115 (1967-03-01), Mueller et al.
patent: 3491033 (1970-01-01), Dunn
patent: 4221688 (1980-09-01), Johnson et al.
patent: 4368279 (1983-01-01), Modic et al.
patent: 4391765 (1983-07-01), Lee et al.
Carl, "Neoprene Latex", E. I. DuPont, DeNemours and Co. (Inc.) 1962.

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