Catalyst for increasing the tensile strength and core hardness o

Details Catalyst for increasing the tensile strength and core hardness o Catalyst for increasing the tensile strength and core hardness o

1978-03-28

1980-07-29

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252426, 252428, 260 318M, 260 318T, C08G 206, C08K 511

Patent

active

042150124

ABSTRACT:
The tensile strength and core hardness of a sand mold or core is increased by incorporating into a mixture of a thermosetting acid-hardenable resin and sand, a dialkyl ester of the formula:

REFERENCES:
patent: 1720051 (1929-07-01), Norton
patent: 2321766 (1943-06-01), Murdock
patent: 2912406 (1959-11-01), Less et al.
patent: 3008205 (1961-11-01), Blaies, Jr.
patent: 3306864 (1967-02-01), Lang et al.
patent: 3637577 (1972-01-01), Guyer et al.
patent: 4070327 (1978-01-01), Junger et al.

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