Process of producing cross-linked urethane-group comprising foam

Details Process of producing cross-linked urethane-group comprising foam Process of producing cross-linked urethane-group comprising foam

1976-07-13

1978-07-04

Jacobs, Lewis T.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521129, 521166, 521176, C08J 900

Patent

active

040987299

ABSTRACT:
In the disclosed process of producing resilient open-celled, cross-linked polyurethane foams, by foaming polyol, a polyisocyanate, catalyst and blowing agent, the foaming is effected in the presence of a cross-linker which is a saturated or unsaturated, aliphatic, cycloaliphatic, heteroaliphatic or arylaliphatic crystalline polyhydroxy compound having at least three hydroxy groups. The crystalline polyhydroxy compound is insoluble or only slightly soluble in the polyl to be foamed and melts within the temperature range of about 60 - 160.degree. C. The amount of crystalline polyhydroxy compound to be used corresponds to about 0.1 - 5.0 hydroxy equivalent weights per 1 hydroxy equivalent weight of the polyol to be foamed. Additionally, a compound that breaks down the association of water molecules can be added.

REFERENCES:
patent: 3586650 (1971-06-01), Gibbons et al.
patent: 3717597 (1973-02-01), Hesskamp et al.
patent: 3723365 (1973-03-01), Speranza et al.
patent: 3931066 (1976-01-01), Puig et al.
patent: 3956202 (1976-05-01), Iwasaki
Handbook of Chem. & Physics (47th ed.) (Chem. Rubber Co.) (Cleveland, O.) (1966) pp. C-74, C-399, C-449, & C-551.
Luck-Water, a Comprehensive Treatise (vol. 2), pp. 277-284 (Plenum) (N.Y.) (1973).
Luck-Tenside Detergents, 11, 145-155 (1974).
Wicke-Angewandte Chemie, 78, 1-19 (1966).
Deguchi et al.-J. Colloid Interface Sci., 50, 223-227 (1975).
Schwuger-Kolloid-Zeitschrift, 232, 775-781 (1968).
Corkill et al.-Trans. Faraday Soc. 63, 240-247 (1967).

Affiliated with

Also associated with

Rating

Process of producing cross-linked urethane-group comprising foam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of producing cross-linked urethane-group comprising foam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing cross-linked urethane-group comprising foam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-276885