Additives which stabilize hydrohalocarbon blowing agent in polyu

Details Additives which stabilize hydrohalocarbon blowing agent in polyu Additives which stabilize hydrohalocarbon blowing agent in polyu

1991-06-21

1992-08-11

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521107, 521117, 521121, 521122, 521128, 521130, 521131, 521132, 252 68, 25218224, 25218226, 25218227, C08G 1814

Patent

active

051379295

ABSTRACT:
The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of additives which decrease the formation of haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, catalyst, surfactant, and at least one additive wherein the additive is capable of decreasing the amount of decomposition of said dehydrohalocarbon blowing agent to haloalkenes during polymerization of the polyisocyanate and the polyol.
Depending upon the polyol and polyisocyanate used and the quantity of polyisocyanate used, the compositions may be used in pour-in-place molded foams; rigid urethane spray foams; rigid high and low density foams for slabstock, froth foams, and molded foams; rigid laminated boardstock; or specialty foams.

REFERENCES:
patent: 4861926 (1989-08-01), Servais

Affiliated with

Also associated with

Rating

Additives which stabilize hydrohalocarbon blowing agent in polyu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additives which stabilize hydrohalocarbon blowing agent in polyu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additives which stabilize hydrohalocarbon blowing agent in polyu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-346806