Charles L Smart

US Patent:

41721730, Oct 23, 1979

Filed:

Jun 30, 1976

Appl. No.:

5/701320

Inventors:

Louis E. Trapasso - Watchung NJ
Charles L. Smart - Millington NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B32B 2704
C08J 518
D04H 504

US Classification:

428288

Abstract:

Non-woven fabric binders of ethylene-vinyl ester copolymers containing effective amounts of an alkyl polyether.

US Patent:

RE299332, Mar 13, 1979

Filed:

Jan 16, 1978

Appl. No.:

5/869472

Inventors:

Henry H. George - Berkeley Heights NJ
Sol J. Barer - Clark NJ
Charles L. Smart - Millington NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

A61K 3174
A61K 3178
A61K 3117

US Classification:

424 78

Abstract:

Delayed and sustained urea release compositions comprising association products with acrylic acid polymers, for ruminant feed supplementation.

US Patent:

40354792, Jul 12, 1977

Filed:

Nov 14, 1975

Appl. No.:

5/631806

Inventors:

Henry H. George - Berkeley Heights NJ
Sol J. Barer - Clark NJ
Charles L. Smart - Berkeley Heights NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

A61K 3174
A61K 3178
A61K 3117

US Classification:

424 78

Abstract:

Delayed and sustained urea release compositions comprising association products with acrylic acid polymers, for ruminant feed supplementation.

US Patent:

41116844, Sep 5, 1978

Filed:

Apr 28, 1977

Appl. No.:

5/791823

Inventors:

Norman W. Thomas - Warren NJ
Frank S. Model - Basking Ridge NJ
Charles L. Smart - Millington NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

A01N 924
A01N 920

US Classification:

71115

Abstract:

A water-leachable herbicide occupies the voids, or channels, of a particulate, substantially water-impermeable porous cellulose ester carrier which provides controlled release of the herbicide into soil. The herbicide-filled cellulose ester composition can be prepared by the method which comprises: (a) dissolving cellulose ester in a solvent; (b) combining the cellulose ester solution with a sufficient amount of a liquid which is a non-solvent for cellulose ester, but miscible with the cellulose solvent, under vigorous agitation to provide a homogeneous liquid containing porous cellulose ester particles having voids, or channels, communicating with the exterior surface thereof; (c) contacting the cellulose ester particles with a water-leachable herbicide dissolved in a liquid which is a non-solvent for cellulose ester whereby the voids, or channels, of the cellulose ester particles become partially or substantially completely occupied with at least part of the herbicide solution; and (d) drying the cellulose ester particles. The herbicidal composition can also be prepared by the leaching and pulverizing method fully disclosed in the description of the preferred embodiments herein.