Powdered binder for mold-making and a process for preparing a mo

Details Powdered binder for mold-making and a process for preparing a mo Powdered binder for mold-making and a process for preparing a mo

1983-06-30

1985-03-19

Lilling, Herbert J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524556, 524559, 5253278, B22C 100, B22C 300

Patent

active

045060410

ABSTRACT:
A binder of this invention is a powder which comprises an intimate mixture of a copolymer of maleic anhydride with an olefinically unsaturated compound selected from the group consisting of an aliphatic .alpha.-olefin having 2 to 8 carbon atoms, styrene and methyl vinyl ether, 0.2 to 2.0 equivalents of a caustic alkali per carboxyl equivalent of said copolymer, and if desired, 30 to 500 parts by weight of an alkaline earth metal hydroxide per 100 parts of the total weight of said copolymer and said caustic alkali, and if desired, up to 300 parts by weight of additive per 100 parts of the total weight of said copolymer and said caustic alkali. A process for preparing a mold according to this invention comprises mixing said powdered binder with refractory particles and a small amount of water under agitation, and forming the resulting mixture into a shaped product, whereafter the shaped product is hardened by blowing CO.sub.2 gas therethrough.

REFERENCES:
patent: 3073805 (1963-01-01), Reinhard
patent: 3178389 (1965-04-01), Hallenbeck
patent: 3267083 (1966-08-01), Imhof
patent: 3625854 (1971-12-01), Gower et al.
patent: 3682868 (1972-08-01), Wollner et al.
patent: 4071669 (1978-01-01), Tazuma et al.
patent: 4223109 (1980-09-01), Wolgemuth
patent: 4269256 (1981-05-01), Nakazawa et al.
patent: 4330459 (1982-05-01), Takahashi et al.
Derwent Abst. 78010 Y/44, (10-1975), J50126039.
Derwent Abst. 05216 J/49, (10-1982), J57174364.
Derwent Abst. 08992 A/05, (12-1977), J52150421.

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