Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1991-10-15
1997-11-18
Sergent, Rabon
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521115, 521124, 521126, 521127, 521128, 521129, 521131, 521163, 521164, 521166, 521170, 2521822, C08J 914, C08G 1816, C08G 1818, C08G 1832
Patent
active
056888341
ABSTRACT:
The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which result in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and at least one catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is less volatile than N,N-dimethylcyclohexylamine or the catalyst is a tertiary amine having at least one isocyanate-reactive functionality selected from the group consisting of --OH and --NH-- and the catalyst results in a decreased amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol and especially during use of the foam samples at a temperature of at least about 54.degree. C.
REFERENCES:
patent: 4386166 (1983-05-01), Peterson et al.
patent: 4945119 (1990-07-01), Smits et al.
patent: 4986930 (1991-01-01), Lund et al.
patent: 4992483 (1991-02-01), Sylvester
patent: 5034426 (1991-07-01), Casey et al.
patent: 5114980 (1992-05-01), Lii et al.
patent: 5137929 (1992-08-01), Demmin et al.
patent: 5216040 (1993-06-01), Kuroishi et al.
patent: 5395859 (1995-03-01), Demmin et al.
patent: 5561171 (1996-10-01), Demmin et al.
Demmin Timothy Rech
Parker Robert Christian
Allied-Signal Inc.
Brown Melanie L.
Friedenson Jay P.
Sergent Rabon
Szuch Colleen D.
LandOfFree
Catalysts 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 Catalysts 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 Catalysts which stabilize hydrohalocarbon blowing agent in polyu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1566104