Photocurable composition

Details Photocurable composition Photocurable composition

1979-07-02

1981-07-21

Briggs, Sr., Wilbert J.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415915, 20415916, 20415918, 20415919, 20415924, 260 459R, C08F 400, C08F 250

Patent

active

042797209

ABSTRACT:
The use of photo-initiators of the formula I ##STR1## in which Ar is a C.sub.6 -C.sub.14 -aryl radical which is unsubstituted or mono-, di- or tri-substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, phenoxy, C.sub.1 -C.sub.4 -alkylthio, phenylthio or halogen, and R is C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or alkaryl, C.sub.7 -C.sub.11 -aralkyl or C.sub.3 -C.sub.6 -alkoxyalkyl, in combination with light stabilizers from the category of the polyalkylpiperidine derivatives in the photopolymerization of ethylenically unsaturated compounds results in polymers with high stability to light and a low degree of yellowing.

REFERENCES:
patent: 3639321 (1972-02-01), Fuhr et al.
patent: 3640928 (1972-02-01), Murayama et al.
patent: 3684765 (1972-08-01), Matsui et al.
patent: 3993655 (1976-11-01), Rasberger et al.
patent: 4024296 (1977-05-01), Gruber
patent: 4024297 (1977-05-01), Gruber
patent: 4038164 (1977-07-01), Via
patent: 4046737 (1977-09-01), Holt et al.
patent: 4056507 (1977-11-01), Ramey et al.
patent: 4201642 (1980-05-01), Nowak
Chem. Abstracts 83-60490h (1975).
Chem. Abstracts 88-74945a (1978).
Chem. Abstracts 87-118757b (1977).
Chem.Abstracts 87-54073r (1977).

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