JAMES A KREJCI
Pharmacy at Court St, Medina, OH

5562997, Oct 8, 1996

Jul 21, 1995

8/505437

James J. Krejci - Medina OH
John M. Heberger - Greer SC
Cathy R. Moore - Anderson SC
Robin M. Donald - Greer SC

Hoechst Celanese Corporation - Somerville NJ

B32B 2706

428480

The present invention discloses a subbing coating composition for polyester films comprising: I - a polymer A having attached to its backbone - carboxyl groups and/or - groups which form carboxyl groups upon hydrolysis and - a polymer B having attached to its backbone --SO. sub. 3 X and/or --PO. sub. 3 XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen or II - a polymer A' having attached to its backbone - carboxyl groups and/or groups which form carboxyl groups upon hydrolysis, and - --SO. sub. 3 X and/or --PO. sub. 3 XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen and III - an organic compound C having at least two free hydroxy groups, wherein the coating composition does not comprise addition polymerizable compounds.

5545713, Aug 13, 1996

Feb 28, 1995

8/396081

James J. Krejci - Medina OH
John M. Heberger - Greer SC

Hoechst Celanese Corporation - Somerville NJ

C08G 6368, C08G 7500

528295

A polyester film coated with a novel primer coating and overcoated with one or more gelatin-aziridine coatings makes an excellent photographic film. The primer coating has about 85-90% by weight of a water-dispersible copolyester and about 1-15% by weight of an anionic surfactant. The water-dispersible copolyester contains about 80-98 mol % of at least one dicarboxylic acid or its ester equivalent; about 1-20 mol % of a sulfomonomer containing a sulfonate group attached to a dicarboxylic nucleus; and about 100 mol % of at least one glycol having 2-11 carbon atoms. The gelatin-aziridine coating contains about 0. 5 to 100% by weight of aziridine, based on the weight of the gelatin. The gelatin-aziridine coating is sufficient to provide adhesion to or serve as a photographic gelatin coating and the aziridine being sufficient to bond the gelatin to the primed film. The gelatin-aziridine coating may constitute a single uniformly blended layer, or separate layers of gelatin and of aziridine with each layer diffused into the other. A process for producing a film useful as a photographic substrate is also disclosed.

5496647, Mar 5, 1996

Jun 1, 1994

8/252150

James J. Krejci - Medina OH
John M. Heberger - Greer SC

Hoechst Celanese Corporation - Somerville NJ

B32B 2736

428480

A polyester film coated with a novel primer coating and overcoated with one or more gelatin-aziridine coatings makes an excellent photographic film as well as for other suitable purposes like reprographic film, x-ray film, etc. The primer coating has about 85-90% by weight of a water-dispersible copolyester and about 1-15% by weight of an anionic surfactant. The water-dispersible copolyester contains about 80-98 mol % of at least one dicarboxylic acid or its ester equivalent; about 1-20 mol % of a sulfomonomer containing a sulfonate group attached to a dicarboxylic nucleus; and about 100 mol % of at least one glycol having 2-11 carbon atoms. The gelatin-aziridine coating contains about 0. 5 to 100% by weight of aziridine, based on the weight of the gelatin. The gelatin-aziridine coating is sufficient to provide adhesion to or serve as a photographic gelatin coating and the aziridine being sufficient to bond the gelatin to the primed film.

5607777, Mar 4, 1997

Jun 7, 1995

8/475239

James J. Krejci - Medina OH
John M. Heberger - Greer SC
Cathy R. Moore - Anderson SC
Robin M. Donald - Greer SC

Hoechst Celanese Corporation - Somerville NJ

B32B 2706, G03C 176, C09K 300

428480

The present invention discloses a subbing coating composition for polyester films comprising: I polymer A having attached to its backbone carboxyl groups and/or groups which form carboxyl groups upon hydrolysis and a polymer B having attached to its backbone --SO. sub. 3 X and/or --PO. sub. 3 XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen or II a polymer A' having attached to its backbone carboxyl groups and/or groups which form carboxyl groups upon hydrolysis, and --SO. sub. 3 X and/or --PO. sub. 3 XY groups, wherein X and Y are identical or different and denote an alkali metal, ammonium or hydrogen and III an organic compound C having at least two free hydroxy groups, wherein the coating composition does not comprise addition polymerizable compounds.