Moulding compositions containing a Novolak phenolic resin and an

Details Moulding compositions containing a Novolak phenolic resin and an Moulding compositions containing a Novolak phenolic resin and an

1976-12-15

1978-08-08

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 38, 528132, C08L 102

Patent

active

041056043

ABSTRACT:
A thermosetting molding composition comprising from 15 to 50 wt.% of Novolak phenolic resin; from 3 to 10 wt.% of hexamine; from 1 to 4 wt.% of a stabilizing-catalyzing mixture consisting of an amine chosen from polyamino aliphatic compounds and mono or polyamino aromatic compounds, and orthoboric or metaboric acid, wherein the ratio between said amino groups and the number of acid equivalents in said mixture is from 0.001:1 to 0.3:1; from 0.5 to 2 wt.% of alkaline earth metal oxide; and one or more inert fillers. This composition is particularly suitable for the production of molded articles by injection molding.

REFERENCES:
patent: RE29242 (1977-05-01), Schmoll
patent: 2319182 (1943-05-01), Van der Pyl
patent: 2326727 (1943-08-01), Schroy
patent: 2606888 (1952-08-01), Williams et al.
patent: 2606889 (1952-08-01), Ward et al.
patent: 2956033 (1960-10-01), Apel et al.
patent: 3200172 (1965-08-01), Renner
patent: 3326843 (1967-06-01), Barnett et al.
patent: 3471443 (1969-10-01), Bornstein
patent: 3476706 (1969-11-01), Bornstein

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