Robert J Thiessen

US Patent:

43406599, Jul 20, 1982

Filed:

Jun 29, 1979

Appl. No.:

6/053168

Inventors:

Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

B05D 512

US Classification:

430 64

Abstract:

An electrostatic master having improved water, cockle and pick resistance for lithographic printing, and method for making the same, comprising a base, a barrier coat applied to said base, and a photoconductive layer containing a photoconductive material and binder applied to said barrier coat. The barrier coat preferably comprises a copolymer of at least 60% ethylenically unsaturated polymerizable monomer having non-polar functionality and about 3 to about 40% of a polymerizable olefinically unsaturated monomer having polar functionality. The barrier coat preferably contains about 2. 5 to about 50% plastic particles based on the weight of the barrier coat. The barrier coat achieves improved water resistance at low coat weights, and thus can be applied without substantial change in conductivity.

US Patent:

42725690, Jun 9, 1981

Filed:

Jun 1, 1979

Appl. No.:

6/044664

Inventors:

Michael J. Shaw - Kalamazoo MI
Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

B05D 310

US Classification:

427336

Abstract:

The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

US Patent:

43046266, Dec 8, 1981

Filed:

Jun 1, 1979

Appl. No.:

6/044662

Inventors:

Michael J. Shaw - Kalamazoo MI
Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

D21D 300

US Classification:

162168R

Abstract:

The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

US Patent:

42936292, Oct 6, 1981

Filed:

Oct 12, 1979

Appl. No.:

6/084409

Inventors:

Michael J. Shaw - Paw Paw MI
Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

G03F 702
B41M 500
B41N 100

US Classification:

430 64

Abstract:

The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

US Patent:

43418392, Jul 27, 1982

Filed:

Dec 17, 1980

Appl. No.:

6/217523

Inventors:

Michael J. Shaw - Paw Paw MI
Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

B32B 2106

US Classification:

428342

Abstract:

The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance. The present invention is particularly directed to a novel water and/or solvent resistant coated paper product wherein the coating comprises a binder and filler, a sufficient amount of the filler comprising plastic particles in a coalesced state to provide a thin, substantially continuous plastic film, the binder being hydrophobic.

US Patent:

43894763, Jun 21, 1983

Filed:

Oct 27, 1981

Appl. No.:

6/315287

Inventors:

Robert J. Thiessen - Richland MI

Assignee:

Allied Paper Incorporated - Kalamazoo MI

International Classification:

G03C 500

US Classification:

430 64

Abstract:

A method for the preparation of electrostatic masters, and product prepared thereby, said masters having improved water and pick resistance for lithographic printing. The method comprises applying a barrier coat formulation to a substrate wherein the formulation contains an aqueous dispersion of a copolymer of at least about 60% ethylenically unsaturated polymerizable monomer having non-polar functionality and about 3 to about 40% of a polymerizable olefinically unsaturated monomer having polar functionality.