Copolymer blend for toner receiver

Details Copolymer blend for toner receiver Copolymer blend for toner receiver

1995-12-13

1998-05-05

Krass, Frederick

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428514, 525212, 525217, 525221, 525222, 525223, 525241, C03G 1314

Patent

active

057471452

ABSTRACT:
The composition of the present invention is a miscible blend comprising a first addition copolymer and a second addition copolymer, each having a weight-average molecular weight of about 30,000 to 100,000 and a number-average molecular weight of about 5,000 to 50,000, and each comprising repeating units of (1) at least one of an aromatic vinyl monomer of the structure, ##STR1## where Ar is phenylene or naphthylene and R.sup.1 and R.sup.2 are H or lower alkyl; and (2) at least one of (a) an acrylic ester of the structure ##STR2## where R.sup.3 is linear or branched C.sub.1 -C.sub.10 alkyl and R.sub.4 is H or lower alkyl, or (b) a divinyl compound of the structure ##STR3## where R.sup.5 and R.sup.6 are H, Cl, or CH.sub.3. The polymer composition comprises a miscible blend of the above-described first and second addition copolymers. The first addition copolymer further comprises repeating units of an acidic vinyl monomer, and the second addition copolymer further comprises repeating units of a basic vinyl monomer. Also in accordance with the present invention, an electrophotographic toner receiver for thermally assisted transfer comprises a substrate having a layer of a thermoplastic polymer composition on the surface thereof. The polymer composition comprises a miscible blend of the above-described first and second addition copolymers. Further in accordance with the invention, a method comprises the non-electrostatically transferring of small toner particles from the surface of a photoconductive element to the described toner receiver.

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