Process for the controlled hardening of unsaturated polyester re

Details Process for the controlled hardening of unsaturated polyester re Process for the controlled hardening of unsaturated polyester re

1979-02-27

1980-11-04

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

260 40R, 526319, 525383, 528272, 525328, 525329, 525384, C08F 1800, C08F11814

Patent

active

042321360

ABSTRACT:
The invention relates to a process for the controlled hardening of unsaturated polyester resins at temperatures of -5.degree. C. to +150.degree. C. using an organic peroxide initiator. According to the process of the invention an organic dyestuff of the general formula (I), ##STR1## wherein R.sup.1 stands for a group of the general formula (II), ##STR2## and in this formula R.sup.5 is a C.sub.1-4 alkyl group and n is an integer from 1 to 3,

REFERENCES:
patent: 3437716 (1969-04-01), Leebrick
patent: 3766111 (1973-10-01), Metzner et al.
patent: 4097467 (1978-06-01), Roskott et al.
Lubin, George, "Handbook of Fiberglass and Advanced Plastics Composites", Polymer Technology Series, p. 23.
"Encyclopedia of Polymer Science and Technology," vol. II, p. 129.

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