Process for the preparation of optionally cellular polyurethane

Details Process for the preparation of optionally cellular polyurethane Process for the preparation of optionally cellular polyurethane

1985-02-13

1986-06-17

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

4283188, 521172, 521173, 528 83, C08G 1814, C08G 1830

Patent

active

045957053

ABSTRACT:
The invention relates to a one-shot process for the preparation of cellular or noncellular polyurethane polyurea parts having a modulus of flexural elasticity greater than 600 N/mm.sup.2 and densities of from 0.8 to 1.2 g/cm.sup.3 using the reaction injection molding technique, by reacting organic polyisocyanates, a polyol component, aromatic diamines, additional chain extenders and/or cross-linking agents in the presence of catalysts and optionally blowing agents, auxiliaries and/or additives, wherein the polyol component is a mixture containing

REFERENCES:
patent: 3794621 (1974-02-01), Meckel et al.
patent: 4218543 (1980-08-01), Weber et al.
patent: 4246363 (1981-01-01), Turner et al.
patent: 4341875 (1982-07-01), Visger et al.
patent: 4444910 (1984-04-01), Rice et al.
patent: 4508774 (1985-04-01), Grabhoefer et al.

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