Polyurethane-forming foundry binders containing a polyether poly

Details Polyurethane-forming foundry binders containing a polyether poly Polyurethane-forming foundry binders containing a polyether poly

1990-04-24

1992-07-21

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523142, 524595, 525504, C08K 551

Patent

active

051323397

ABSTRACT:
Certain polyether polyols are used in polyurethane-forming binders to improve the shakeout of molds and cores, made by cold-box and no-bake processes. Such molds and cores are used to make metal castings, particularly from low melting metals such as aluminum.

REFERENCES:
patent: 3409579 (1968-11-01), Robins
patent: 3485797 (1969-12-01), Robins
patent: 3676392 (1972-07-01), Robins
patent: 3904559 (1975-09-01), Furness
patent: 4079031 (1978-03-01), Sardessai
patent: 4293480 (1981-10-01), Martin
patent: 4358570 (1982-11-01), Tobinaga

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