Polyurethane-forming binder compositions containing certain carb

Details Polyurethane-forming binder compositions containing certain carb Polyurethane-forming binder compositions containing certain carb

1986-08-25

1988-07-26

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523146, C08K 336, C08K 509

Patent

active

047601019

ABSTRACT:
Certain carboxylic acids are used in polyurethane-forming binder compositions to extend the bench life of such compositions. The binder compositions are particularly useful for preparing sand castings used for making foundry parts.

REFERENCES:
patent: 3431969 (1969-03-01), Robins
patent: 3485797 (1969-12-01), Robins
patent: 4179427 (1979-12-01), Gardikes
patent: 4452927 (1984-06-01), Matsushima et al.
patent: 4459374 (1984-07-01), Nishimura et al.
patent: 4546124 (1985-10-01), Laitar et al.
patent: 4602069 (1986-07-01), Dunnavant et al.
Frisch et al.; Polyurethanes, Chemistry & Technology, Part I, Chemistry; 1962; pp. 160-173, 189-190, 210-217.

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