Aqueous release agent for the production of polyurethane molding

Details Aqueous release agent for the production of polyurethane molding Aqueous release agent for the production of polyurethane molding

1992-10-26

1994-06-07

Michl, Paul R.

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...

524269, 524318, 524322, 524276, 264300, 264338, C08L 2904, B28B 736

Patent

active

053190157

ABSTRACT:
An aqueous release agent for the production of polyurethane moldings and more particularly of polyurethane foam moldings, is provided, which in combination with a release substance contain one or more specific polyvinyl alcohols. As such release substance the release agent preferably contains at least in part one or more unsaturated oligomeric or polymeric hydrocarbons with a molecular weight of at least 500 and iodine numbers of at least 60 optionally in the presence of foam stabilizers suitable for polyurethane systems.

REFERENCES:
patent: 2277259 (1940-03-01), Schnabel et al.
patent: 3213051 (1965-10-01), Pink
patent: 3442845 (1969-05-01), Columbus et al.
patent: 3540580 (1990-11-01), Columbus et al.
patent: 3996181 (1976-12-01), Hayashi et al.

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