Syndiotactic polypropylene wax, production process thereof, and

Details Syndiotactic polypropylene wax, production process thereof, and Syndiotactic polypropylene wax, production process thereof, and

1995-10-16

1997-08-19

Seidleck, James J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526348, 430 99, 430109, C08F11006

Patent

active

056589999

ABSTRACT:
Described herein are propylene waxes and a production process thereof. The waxes are each produced by polymerizing propylene in a reaction vessel while using a solid catalyst in the presence or absence of an organoaluminum compound. A hydrogen partial pressure of a gas phase in the reaction vessel, said gas phase being formed of the propylene and hydrogen, is maintained at 10% or higher. The solid catalyst is formed of a transition metal compound or a reaction product between the transition metal compound and an organometallic compound, an aluminoxane and a fine particulate carrier. Also described herein is a heating-roll fixing type toner composition composed essentially of a binder resin or a binder resin composition, a colorant and, as a releasing agent, the wax.

REFERENCES:
patent: Re31072 (1982-11-01), Jadwin et al.
patent: 4486524 (1984-12-01), Fujisaki et al.
patent: 4892851 (1990-01-01), Ewen et al.
patent: 4921771 (1990-05-01), Tomono et al.
patent: 4962262 (1990-10-01), Winter et al.
Derwent Publications Ltd., JPA-3000709, Jan. 7, 1991.
Derwent Publications Ltd., JPA-3066710, Mar. 22, 1991.

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