Stable, phenolic modified hydrocarbon resins for leucopigments

Details Stable, phenolic modified hydrocarbon resins for leucopigments Stable, phenolic modified hydrocarbon resins for leucopigments

1983-11-15

1986-07-01

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525534, 528 59, 528 60, 528 65, 528 75, 528 85, C08G 6540, C08G 8300

Patent

active

045981388

ABSTRACT:
Stable phenolic-modified hydrocarbon resins with an OH number which is 4.5 or greater are resonably priced and toxicologically generally regarded as safe resins for the development of leucopigments, especially for the development of colors in pressure sensitive recording materials. The softening point may be varied by copolymerization with multivalent phenolic compounds and vinyl phenol within the range of 70.degree.-90.degree. C.

REFERENCES:
patent: 3004953 (1961-10-01), Sonnabend
patent: 3546173 (1970-12-01), Hunt
patent: 4307223 (1981-12-01), Shintani et al.
patent: 4357459 (1982-11-01), Runavot et al.
patent: 4360628 (1982-11-01), Runavot et al.
patent: 4471106 (1984-09-01), Luecke et al.

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