Toner resin

Details Toner resin Toner resin

1995-07-24

1997-10-07

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 2010

Patent

active

056749627

ABSTRACT:
A toner resin, comprising a styrene component, an acrylic acid ester component or methacrylic acid ester component or both, and a divinyl monomer component, the resin having a glass transition temperature of 50.degree. to 68.degree. C., a value of tan .delta., which is the ratio of the dynamic loss to the dynamic elastic modulus, of 0.3 to 0.7 as measured at 200.degree. C., a gel fraction of 55 to 83%, and a softening point at which the resin has a melting viscosity of 100,000 poises is 200.degree. to 410.degree. C. A toner having an excellent fixing property, non-offsetting property, and blocking resistance, and able to be used with a high-temperature high-speed copying machine is formed from this toner resin.

REFERENCES:
patent: 4481274 (1984-11-01), Mitsuhashi et al.
patent: 4565766 (1986-01-01), Mitsuhashi et al.
CA 98 (8):633 05, JP 5782847 May 1982.

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