Paul D Graham

US Patent:

40695174, Jan 24, 1978

Filed:

May 29, 1973

Appl. No.:

5/364801

Inventors:

Paul R. Graham - Ballwin MO

Assignee:

Monsanto Company - St. Louis MO

International Classification:

A61F 124
A61F 122

US Classification:

3 14

Abstract:

Vinyl halide polymers containing migration-resistant polyester plasticizers are used in food and drink wrapping and containers and medical tubing and in medical devices for collecting, storing and administering body fluids.

US Patent:

44746946, Oct 2, 1984

Filed:

Nov 8, 1982

Appl. No.:

6/440111

Inventors:

Charles E. Coco - St. Louis MO
Paul M. Graham - Ballwin MO
Thomas L. Krinski - Granite City IL

Assignee:

Ralston Purina Company - St. Louis MO

International Classification:

C07G 700

US Classification:

2601235

Abstract:

A modified vegetable protein adhesive binder and a process for producing the same is disclosed wherein an alkaline protein dispersion is formed of the protein material and said dispersion is treated with a reducing agent in an amount sufficient to react with the disulfide bonds of the protein material in said dispersion. Initial treatment of the protein material with a reducing agent is followed by reaction of the treated dispersion with a carboxylic acid anhydride such as dicarboxylic acid anhydride, preferably phthalic anhydride in an amount sufficient to modify the protein material such that resultant alkali dispersions of the modified unhydrolyzed protein material have a relatively high viscosity but when used in paper coating compositions containing pigment and other materials such as latex produce relatively low and desirable coating viscosities. Improvements in pick strength, gloss, water holding and ink receptivity of coatings produced with the modified binder of the present invention is achieved.

US Patent:

44215649, Dec 20, 1983

Filed:

Apr 14, 1982

Appl. No.:

6/368190

Inventors:

Paul M. Graham - Ballwin MO
Thomas L. Krinski - Granite City IL

Assignee:

Ralston Purina Company - St. Louis MO

International Classification:

C08L 8900
A23J 112

US Classification:

106154R

Abstract:

A method of producing a paper coating composition containing a soy protein adhesive binder which is thermally sensitive or coagulates with heating is described wherein a soy protein isolate is solubilized to form a proteinaceous adhesive binder, said binder is mixed with a mineral pigment to provide a slurry having a solids level of at least about 36% by weight of the slurry, followed by control of the pH of the slurry to between about 5. 7 to 6. 2 and the addition of a salt selected from the group consisting of Zinc Acetate and Zinc Formate in amounts effective to cause heat coagulation of said slurry upon heating thereof. The coating is particularly used in cast coating processes, involving the application of heat to achieve uniform smoothness of the applied coating on paper.