Polyoxymethylene/polyurethane compositions containing polycarbod

Details Polyoxymethylene/polyurethane compositions containing polycarbod Polyoxymethylene/polyurethane compositions containing polycarbod

1987-11-23

1989-07-04

Jacobs, Lewis T.

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

Synthetic resins

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

525907, C08L 7504

Patent

active

048451614

ABSTRACT:
Polyoxymethylene/thermoplastic polyurethane compositions having 5-40 weight percent polyurethane are modified by incorporating therein 0.05-1.0 weight percent of a polycarbodiimide (or a mixture of polycarbodiimides) having a molecular weight of about 1000 and containing units of the formula ##STR1## where n has an average value of about 3, to improve resistance to discoloration and decomposition.

REFERENCES:
patent: 3193522 (1965-07-01), Neumann
patent: 3711439 (1973-01-01), Loew
patent: 4277577 (1981-07-01), Burg et al.
patent: 4293469 (1981-10-01), Edelman

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