Richard W Greene

US Patent:

42018340, May 6, 1980

Filed:

Dec 5, 1978

Appl. No.:

5/966694

Inventors:

Martin J. Hannon - Martinsville NJ
Richard K. Greene - Summit NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B32B 516

US Classification:

428407

Abstract:

A non-tacky powder composition useful for coating applications is disclosed. A method of preparing the non-tacky powder composition is also disclosed. This powder composition comprises tacky powder particles and, adhering to the tacky surface of these tacky powder particles in a non-continuous layer, smaller solid particles which are hard and non-tacky. The tacky powder particles comprise a melt blend mixture of a thermoplastic elastomer and a specifically defined melt flow modifier. The smaller solid particles which are hard and non-tacky comprise a specifically defined melt flow modifier which has a glass transistion temperature greater than about 20. degree. C. The final powder composition is non-tacky and is particularly useful in coating glass containers. A process for coating substrates such as a glass container with this composition, as well as the coated glass container, is also disclosed.

US Patent:

41710568, Oct 16, 1979

Filed:

Oct 25, 1977

Appl. No.:

5/844820

Inventors:

Martin J. Hannon - Martinsville NJ
Alex S. Forschirm - Parsippany NJ
Richard K. Greene - Summit NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B65D 1116
B05D 302
B05D 136

US Classification:

215 12R

Abstract:

A coated bottle comprising a bottle having an inner and an outer coating is disclosed. The inner coating applied to the external surface thereof is prepared from non-tacky composite powder particles which are made up of powder particles which have surface deposited thereon comparatively smaller solid particles which are hard and non-tacky. The tacky powder particles comprise a mixture of a thermoplatic elastomer, a specifically defined melt flow modifier, and an adhesion promoter. The smaller, hard particles comprise a specifically defined melt flow modifier which has a glass transition temperature of at least about 20. degree. C. The first coating is applied to the bottle, preferably by electrostatic spraying techniques, and the bottle with the particles is baked to form a smooth coating. An outer coating comprising certain particularly defined synthetic resins, particularly acrylic polymers, is then applied and the coated bottle is again baked until a smooth second coat is formed. The coated bottle is fragment retentive and this coating is not substantially removed or destroyed during the cleaning and sterilization procedures commonly employed by carbonated beverage bottling companies.

US Patent:

42600669, Apr 7, 1981

Filed:

Sep 27, 1979

Appl. No.:

6/079636

Inventors:

Martin J. Hannon - Martinsville NJ
Richard K. Greene - Summit NJ

Assignee:

Celanese Corporation - New York NY

International Classification:

B65D 1116
B05D 302
B05D 136

US Classification:

215 12R

Abstract:

A non-tacky powder composition useful for coating applications is disclosed. A method of preparing the non-tacky powder composition is also disclosed. This powder composition comprises tacky powder particles and, adhering to the tacky surface of these tacky powder particles in a non-continuous layer, smaller solid particles which are hard and non-tacky. The tacky powder particles comprise a melt blend mixture of a thermoplastic elastomer and a specifically defined melt flow modifier. The smaller solid particles which are hard and non-tacky comprise a specifically defined melt flow modifier which has a glass transition temperature greater than about 20. degree. C. The final powder composition is non-tacky and is particularly useful in coating glass containers. A process for coating substrates such as a glass container with this composition, as well as the coated glass container, is also disclosed.