Use of organosiloxane compositions as foam stabilizers in flexib

Details Use of organosiloxane compositions as foam stabilizers in flexib Use of organosiloxane compositions as foam stabilizers in flexib

1980-09-29

1982-05-25

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252312, 252356, 521111, B01F 1754

Patent

active

043315550

ABSTRACT:
A process for manufacturing low density flexible polyester polyurethane foam utilizing as a foam stabilizer selected low molecular weight (e.g., 400 to 1500) organosiloxane compositions containing monomeric units A, B and C wherein A is a monofunctional trimethylsiloxy unit [(CH.sub.3).sub.3 SiO.sub.1/2 ], B is a difunctional dimethylsiloxy unit [(CH.sub.3).sub.2 SiO.sub.2/2 ] and C is a difunctional organomethylsiloxy unit [R(CH.sub.3)SiO.sub.2/2 ] where R is a cyano-, ether-, hydroxy-or phenyl-organo modifying moiety, and in which the unit ratio of B to C in each organosiloxane composition is from 1 to 4 inclusive; solutions of such organosiloxane compositions; and the foams derived from such process.

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patent: 3954824 (1976-05-01), Prokai et al.
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