Shipping flexible polyurethane foam product

Details Shipping flexible polyurethane foam product Shipping flexible polyurethane foam product

1984-02-15

1985-06-25

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

53121, 53523, 53527, 264321, 521115, 528 53, B29D 2700

Patent

active

045253161

ABSTRACT:
A method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst and water to provide a foam product, (b) conditioning the foam product to develop substantially full cure, (c) applying a force to compress the product to a fraction of its original size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature prior to compressing the foam product while ensuring the substantial restitution of the foamed product when the compression force is removed which improvement comprises employing as the catalyst in the flexible polyurethane foam composition a polyurethane catalyst which is N-alkyl morpholine or N-(dialkylaminoalky) morpholine.

REFERENCES:
patent: 3202998 (1965-08-01), Hoffman
patent: 3741416 (1973-06-01), Bilbow
patent: 4065910 (1978-01-01), Eiselt
patent: 4194069 (1980-03-01), Speranza et al.
patent: 4326042 (1982-04-01), Zimmerman

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