Bell + Howell Company

Avery Dennison Corporation

Daniel R Logue

Terry G Anderson

Eng-Pi Chang

Carol A Caldwell

Roger H Mann

Edward I Sun

Richard A Huskey

Gary A Avalon

Piet T Van Emmerik

A release liner providing a release surface which comprises a first olefin polymer film formed having dispersed therein by high shear mixing a release substance which is polyethyleneimine octadecyl carbamide, polyvinyl octadecyl carbamate or a mixture thereof, coextruded or cocast onto a film formed from a second olefin polymer. The release liner has particular utility in diaper tape application.

Release films formed by coextrusion

An improved photoconductive surface coating is provided having panchromatic sensitivity and increased resistance against spectral response shift upon reuse of the photoconductive layer. The surface coating comprises zinc oxide particles, a minor amount of a group IIB selenide or telluride and a binder in substantially uniform mixture. The selenide or telluride is present either as discrete particles or chemically deposited on the zinc oxide particles. In the latter instance, the resulting particles exhibit bi-chargeability and substantially increased light sensitivity. The selenide or telluride can be deposited chemically in accordance with one embodiment by dispersing zinc oxide particles in a medium such as water and precipitating the selenide or telluride, preferably in situ, on the surfaces of the particles.

Method of making improved photoconductive particles

An improved photoconductive surface coating is provided having panchromatic sensitivity and increased resistance against spectral response shift upon reuse of the photoconductive layer. The surface coating comprises zinc oxide particles, a minor amount of a group IIB selenide or telluride and a binder in substantially uniform mixture. The selenide or telluride is chemically deposited on the zinc oxide particles. The resulting particles exhibit bi-chargeability and substantially increased light sensitivity. The selenide or telluride can be deposited chemically in accordance with one embodiment by dispersing zinc oxide particles in a medium such an water and precipitating the selenide or telluride, preferably in situ, on the surface of the particles.

Photoconductive particles of zinc oxide

Growing community of inventors

Upland, CA, United States of America

Daniel R Logue