Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1993-03-01
1993-11-23
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521127, 521129, 521131, 521174, 521917, 521 78, 521 79, C08J 914
Patent
active
052644642
ABSTRACT:
The present invention relates to an improved process for producing, by means of a portable foaming apparatus having a static mixer, a polyurethane foam by reacting a reaction mixture comprised of a polyol, an organic isocyanate, a foaming/frothing agent, and a reaction catalyst, the improvement comprising employing monochlorodifluoromethane as the sole blowing/frothing agent in said reaction in order to produce a CFC-free essentially closed-cell rigid or semi-rigid polyurethane foam. Also claimed is the foam produced by the above process.
REFERENCES:
patent: 3286992 (1966-11-01), Armeniades
patent: 3541023 (1970-11-01), Cole, III
patent: 3769232 (1973-10-01), Houldridge
patent: 3882052 (1975-05-01), Raynor et al.
patent: 3920587 (1975-11-01), Watkinson
patent: 4048100 (1977-09-01), Gurgiolo et al.
patent: 4163086 (1979-07-01), Narayan
patent: 4205136 (1980-05-01), Ohashi
patent: 4218543 (1980-08-01), Webber
patent: 4285027 (1982-11-01), Brasington et al.
patent: 4407982 (1983-10-01), Elgie
patent: 4546122 (1985-10-01), Radovich et al.
patent: 4621105 (1986-11-01), Slatton et al.
patent: 4636529 (1987-01-01), Crooker
patent: 4713399 (1987-12-01), Webb et al.
patent: 4722942 (1988-02-01), Nichols
patent: 4742087 (1988-05-01), Kluth
patent: 4927863 (1990-05-01), Bartlett
patent: 4972003 (1990-11-01), Grumbauer et al.
patent: 4981879 (1991-01-01), Snider
patent: 5032623 (1991-07-01), Keske et al.
Petroskey Wade T.
Wishneski Todd W.
BASF Corporation
Carmen Dennis V.
Foelak Morton
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