Process for the preparation of cellular or noncellular plastics

Details Process for the preparation of cellular or noncellular plastics Process for the preparation of cellular or noncellular plastics

1986-01-23

1987-03-10

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 82, 521133, 528 44, 528 48, 528 59, 528 67, 528 76, 528 77, 528483, C08G 1814

Patent

active

046491627

ABSTRACT:
The invention relates to a process for the preparation of cellular or noncellular plastics, preferably polyurethane coatings, by reacting at least two components with one another, preferably organic polyisocyanates and polyhydroxyl compounds, by feeding the components into a mixing zone separately, and mixing them together and then discharging the reaction mixture from the mixing zone, while adding air heated to a temperature of 100.degree. to 1200.degree. C. to the reaction mixture as it emerges from the mixing zone.

REFERENCES:
patent: 3755212 (1973-08-01), Dunlap et al.
patent: 3821130 (1974-06-01), Barron et al.
patent: 4546118 (1985-10-01), Simpson et al.

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