Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1996-11-25
1998-03-10
Niland, Patrick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
252182, 2521822, 25218221, 25218222, 25218229, 524107, 524109, 524114, 560331, C08K 300, C08K 320, C08L 7500, C07C24900
Patent
active
057262403
ABSTRACT:
This invention relates to mixtures of polymethylene poly(phenylisocyanate) blends with epoxides. The addition of the epoxide stabilizes the reactivity of the polyisocyanate blends such that it is no longer dependent on the acidity. It is now possible to form polyurethanes from these mixtures based on polymethylene poly(phenylisocyanate) blends wherein less catalyst is necessary.
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Cline Robert L.
Pantone Richard S.
Rosthauser James W.
Bayer Corporation
Brown N. Denise
Gil Joseph C.
Niland Patrick
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