Polyether urethane foam produced with cyano-ether polysiloxane-p

Details Polyether urethane foam produced with cyano-ether polysiloxane-p Polyether urethane foam produced with cyano-ether polysiloxane-p

1976-05-28

1977-11-15

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08G 1814, C08K 554

Patent

active

040584941

ABSTRACT:
Organosilicone compositions are provided which comprise polysiloxane-polyoxyalkylene copolymers containing monofunctional siloxy units (M.sub.o) and, for every two moles of M.sub.o, an average of between about 10 and about 200 difunctional dialkylsiloxy units, an average of between about 2 and about 100 silicon-bonded cyano-bearing ether groups (Q) having the formula, --(O).sub.q R'OR"CN, wherein q is zero or one, R' is bivalent alkylene of 3 to 8 carbon atoms and R" is bivalent alkylene of 2 to 4 carbon atoms, and an average of between about 2 and about 30 silicon-bonded, organic-capped polyoxyalkylene blocks (E), the polyoxyalkylene content of said copolymers being constituted of between about 20 and about 65 weight percent of oxyethylene units, said M.sub.o units having at least two alkyls bonded to the respective silicon atoms thereof, the remaining organic group of M.sub.o being alkyl, Q or E, said copolymers also containing difunctional monoalkylsiloxy units the remaining organic group bonded to the respective silicon atoms thereof being Q or E. The polymers of the invention are effective stabilizers of flexible polyether polyol-based polyurethane foam and offer particular advantage in the formation of flame-retarded foam.

REFERENCES:
patent: 3846462 (1974-11-01), Prokai et al.
patent: 3887500 (1975-06-01), Prokai et al.
patent: 3905924 (1975-09-01), Prokai
patent: 3935123 (1976-01-01), Prokai et al.
patent: 3966650 (1976-06-01), Prokai

Affiliated with

Also associated with

Rating

Polyether urethane foam produced with cyano-ether polysiloxane-p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyether urethane foam produced with cyano-ether polysiloxane-p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyether urethane foam produced with cyano-ether polysiloxane-p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1719226