Binder for dry toner

Details Binder for dry toner Binder for dry toner

1991-07-12

1993-08-31

Acquah, Samuel A.

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

Synthetic resins

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

525438, 525445, 525447, 525448, 430109, 430904, 430965, C08F 2010

Patent

active

052410196

ABSTRACT:
Herein disclosed is a binder for dry toners which comprises a copolymer resin obtained by reacting 10 to 50% by weight of a polyester resin which has free carboxyl groups, whose acid value ranges from 10 to 100 and whose number-average molecular weight ranges from 1,000 to 5,000 and 90 to 50% by weight of a mixture of a vinyl compound having a glycidyl group and the an another vinyl compound, wherein the amount of the vinyl compound having a glycidyl group corresponds to the number of the glycidyl groups equal to 0.25 to 1.5 time that of the carboxyl groups present in the polyester resin. The binder for dry toners is used in the electrophotography technique.

REFERENCES:
patent: 2297691 (1942-10-01), Carlson
patent: 4246332 (1981-01-01), Tanaka et al.
Patent Abstracts of Japan, vol. 6, No. 92 (P-119) (970) May 29, 1982; JPA 57-026855.
Patent Abstracts of Japan, vol. 12, No. 188 (P-711) (3035) Jun. 2, 1988; JPA 62-295068.
Patent Abstracts of Japan, vol. 6, No. 98 (C-106) (976) Jun. 8, 1982; JPA 57-030767.
Patent Abstracts of Japan, vol. 5, No. 8 (C-39) (680) Jan. 20, 1981; JPA 55-137170.

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