Process for stabilization of ultraviolet light curable unsaturat

Details Process for stabilization of ultraviolet light curable unsaturat Process for stabilization of ultraviolet light curable unsaturat

1973-06-18

1976-07-13

Tillman, Murray

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415919, 260 40R, 260 457R, 260866, C08G 6302, C08K 6706, C08K 504, C08F 800

Patent

active

039692060

ABSTRACT:
A process for stabilizing an ultraviolet light curable unsaturated polyester resin mixture containing a benzoin compound as a photosensitizer is disclosed. A stabilizing amount of a compound of the formula ##SPC1##
Wherein A is a methyl group, B is a hydrogen atom or A and B together represent a substituted or non-substituted benzo group is added to the mixture which can also contain a filler, a quaternary ammonium compound and a copper or iron compound soluble in the unsaturated polyester resin. The composition and cured product are also disclosed.

REFERENCES:
patent: 2610168 (1952-09-01), Anderson
patent: 2951758 (1960-09-01), Notley
patent: 3607693 (1971-09-01), Heine et al.
patent: 3627657 (1971-12-01), Nistri et al.
Noyes Data Corporation, Polymer Additives: Guidebook and Directory, (1972), p. 192.

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