Organomineral foamed materials and processes for their preparati

Details Organomineral foamed materials and processes for their preparati Organomineral foamed materials and processes for their preparati

1987-07-22

1990-04-24

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521155, 521168, 521173, 521174, C08G 7700

Patent

active

049201557

ABSTRACT:
The subject-matter of the invention are organomineral foamed materials and a process for their preparation by reacting polyisocyanate and water-glass without the use of a foaming agent. In the process according to the invention the foaming of the reaction mixture is achieved in controlled manner by means of the CO.sub.2 released in the reaction of isocyanate groups with water by the addition of a polysiloxane and polyether block copolymer.

REFERENCES:
patent: 3629308 (1971-12-01), Bailey et al.
patent: 4142030 (1979-02-01), Dieterich et al.
patent: 4146509 (1979-03-01), Markusch et al.
Kollmeir, H. J. et al., Goldschmidt Informiert No. 58 (1983) (A partial unverified translation is also included).

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