Photo curable polyester with benzoyl oxime carbonate, photo redu

Details Photo curable polyester with benzoyl oxime carbonate, photo redu Photo curable polyester with benzoyl oxime carbonate, photo redu

1981-05-21

1982-10-12

Briggs, Sr., Wilbert J.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415918, 20415923, 20415924, 430285, 430339, 430915, 430919, 525 21, 525 25, 524110, 524240, C08F 246, C08L 6706

Patent

active

043537871

ABSTRACT:
A photo-initiator system of a polyester resin is disclosed which consists of an oxime carbonate of a vicinal diketone (I), a photo-reducible dye (II) and an amine (III). This system is capable of polymerizing and curing unsaturated polyester resins by irradiation with visible light to provide coatings, adhesives, castings and fibre reinforced composites.
The formulae of the ingredients of the system are ##STR1## where R' and R" are independently alkyl, aryl or aralkyl (R' preferably being CH.sub.3 and R" C.sub.2 H.sub.5) ##STR2## wherein X=Br or I on at least 2 positions

REFERENCES:
Delzenne, et al., "Photopolymerization of Acrylamide . . . ", Journal of Polymer Science, 58, pp. 347-355 (1960).
Toppet et al., "Photosensitized Polymerization of Acrylic . . . ", Journal of Polymer Science, A2, pp. 1539-1548 (1964).

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