Cobaltic accelerators with group II metal oxides and hydroxides

Details Cobaltic accelerators with group II metal oxides and hydroxides Cobaltic accelerators with group II metal oxides and hydroxides

1975-06-03

1977-09-13

Hunt, Brooks H.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

260 75NB, 260 75UA, 260863, 423138, C08G 6312

Patent

active

040480860

ABSTRACT:
This invention relates to an accelerator composition particularly adapted for providing extended shelf life to sheet and bulk molding compound while providing for accelerated cure rates at molding temperatures. The accelerator composition comprises in combination:
A cobaltic promotor selected from the group consisting of cobaltic halides, cobaltic salts of monocarboxylic acids having from 2 to 20 carbon atoms, cobaltic sulfate, and cobaltic beta-diketones; and
From about 1 to 4,500 parts, per part of cobaltic metal in said cobaltic promoter, of a coupler selected from the group consisting of oxides and hydroxides of calcium and magnesium.

REFERENCES:
patent: 2897181 (1959-07-01), Windemuth
patent: 3449276 (1969-10-01), Rabenold
patent: 3584076 (1971-06-01), Chetakian
27TH Annual Technical Conference, The Soc. of the Plastic Industries, sec. 12-D, pp. 1-10.

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