Water- and solvent-free release agent for polyurethane foaming
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Feb 28, 1990
filing date -
Mar 7, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A water- and solvent-free release agent for use in the production of articles of polyurethane foam contains one or more polyenes as the main constituent and also in addition if required a consistency adjuster, an antioxidant, accelerators and/or stabilizers. To apply water- and solvent-free release agents to the surfaces of polyurethane-foam moulding dies the misting or atomization of the release agent is effected with a device with an electrostatic charge, by which the release agent particles are given an electrostatic charge when passing through the exit nozzle.
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