Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1995-09-13
1996-06-11
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521155, 528 25, 528 27, 528 29, C08G 1861
Patent
active
055256406
ABSTRACT:
It has now been found that the use of inert gases as an auxiliary blowing agent in flexible polyurethane foams places unexpected requirements on the composition of the silicone surfactants used in such foams. Typical silicone polyalkylene oxide polyether copolymer comb-type surfactants containing greater than about 37% ethylene oxide in the pendant polyether chains cause large cells when added inert gas is used as the blowing agent.
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Gerkin Richard M.
Harakal Mark E.
Lawler Lee F.
Miller Glenn A.
Foelak Morton
OSi Specialties Inc.
Reiskind Andrew S.
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