Preparation of recyclate polyols, and the use thereof in the pre

Details Preparation of recyclate polyols, and the use thereof in the pre Preparation of recyclate polyols, and the use thereof in the pre

1993-10-07

1994-10-18

Welsh, Maurice J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525460, 528494, 25218224, 25218225, 25218226, 25218227, C08L 7504

Patent

active

053570065

ABSTRACT:
A process for the preparation of recyclate polyols obtained by glycolysis of polyurethanes and/or polyurea-polyurethanes comprises metering in monofunctional and/or difunctional glycidyl ethers over the entire course of the reaction; the low-amine recyclate polyols obtained in this way are used for the preparation of cellular or noncellular polyurethanes.

REFERENCES:
patent: 3109824 (1963-11-01), Heiss
patent: 3404103 (1968-10-01), Matsudaira et al.
patent: 3632530 (1972-01-01), Kinoshita
patent: 3983087 (1976-09-01), Tucker et al.
patent: 4014809 (1977-03-01), Kondo et al.
patent: 4511680 (1985-04-01), Niederdellmann et al.
Bruckner et al, Kunststoffe, vol. 81, 1991, pp. 751-759.

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