Disintegration assistant for casting molds

Details Disintegration assistant for casting molds Disintegration assistant for casting molds

1985-02-28

1986-07-15

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523139, 523145, 523146, 523147, 524424, 524425, 524456, B22C 1122

Patent

active

046007334

ABSTRACT:
A disintegration assistant is added to a molding composition made up of foundry sand and a binder whose major part is a condensation-reactive compound or resin having methylol groups in a molecule. The molding composition is formed into a mold and a core by solidifying the resin so that individual grains of the foundry sand are bound each other. The disintegration assistant is mainly made of calcium hydroxide, calcium carbonate, barium hydroxide and/or barium carbonate, thereby promoting the heat deterioration of the resin to improve the disintegration characteristics of the mold and the core.

REFERENCES:
patent: 3645491 (1972-02-01), Brown et al.
patent: 4321186 (1982-03-01), Allison
patent: 4459376 (1984-07-01), Matsushima et al.
The Condensed Chemical Dictionary, 7th Edition; Reinhold Pub. Corp.; 1966; pp. 97, 98, 162, 165.
Patent Abstracts of Japan, vol. 8, No. 189, Aug., 1984; Japanese Application No. 59-78746.
Patent Abstracts of Japan, vol. 7, No. 163, Jul., 1983; Japanese Application No. 58-70939.

Affiliated with

Also associated with

Rating

Disintegration assistant for casting molds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disintegration assistant for casting molds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disintegration assistant for casting molds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1741405