Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1992-11-18
1993-06-22
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
25218224, 570179, C08J 914
Patent
active
052216977
ABSTRACT:
Storage-stable 141b prepared by contacting 141b with alumina at temperatures of about 0-100 degrees Centigrade, compositions containing the thus treated 141b, and uses thereof for the production of polyurethane and polyisocyanurate foams.
REFERENCES:
patent: 3696156 (1972-10-01), Weeks
patent: 4948479 (1990-08-01), Brooks et al.
patent: 4950816 (1990-08-01), Tung et al.
patent: 5135680 (1992-08-01), Crooker et al.
Crooker Richard M.
Elsheikh Maher Y.
Elf Atochem North America Inc.
Foelak Morton
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