Water- and solvent-free release agent for polyurethane foaming

Details Water- and solvent-free release agent for polyurethane foaming Water- and solvent-free release agent for polyurethane foaming

1990-02-28

1993-06-08

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524267, 524322, 264 51, 106 3822, 106 3824, C08L 1900

Patent

active

052180247

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.

REFERENCES:
patent: 3981447 (1976-09-01), Bachofen et al.
patent: 4609511 (1986-09-01), Fischer et al.
patent: 4783296 (1988-11-01), Fischer et al.
patent: 4892585 (1990-01-01), Fischer et al.
patent: 4925882 (1990-05-01), Makus
patent: 4969952 (1990-11-01), Hattich et al.

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