Tung Phuoc Ma, 37Bronx, NY

5635279, Jun 3, 1997

Aug 15, 1994

8/290645

Tung C. Ma - Fort Lee NJ
Arnold L. Berzins - Westwood NJ
Charles J. Davis - Goshen NY
Bruce T. Watson - Shreveport LA

International Paper Company - Purchase NY

B32B 100
B05D 136

428174

Paperboard having a water-repellant coating which includes a polymer matrix/wax/pigment mixture and is applied to the paperboard as an aqueous formulation. The polymer matrix includes polymer chains which are ionically cross-linked through pendant carboxylic acid groups to provide, together with the wax and pigment components, a substantially continuous, water-repellant film which more readily breaks down under the alkaline conditions of repulping. The coated board also exhibits low slip and resistance to blocking, and is particularly well-suited in corrugated box constructions used in shipping containers for perishable food items such as meats, poultry, fishery products, fruits and vegetables. The pigmented or unpigmented coating formulations are also used as an overcoat over preprinted paperboard surfaces to simultaneously provide scuff and water resistance.

5626945, May 6, 1997

Sep 28, 1993

8/128582

Arnold L. Berzins - Westwood NJ
Tung C. Ma - Fort Lee NJ
Charles J. Davis - Goshen NY

International Paper Company - Purchase NY

B32B 906

428174

The specification discloses paperboard having a water-repellant coating which includes a polymer matrix/wax mixture and is applied to the paperboard as an aqueous formulation. The polymer matrix includes polymer chains which are ionically cross-linked through pendant carboxylic acid groups to provide, together with the wax, a substantially continuous, water-repellant film which more readily breaks down under the alkaline conditions of repulping. The coated board also exhibits improved release characteristics and resistance to blocking, and is particularly well-suited in corrugated box constructions used in shipping containers for perishable food items such as meats, poultry, fishery products, fruits and vegetables.

6066379, May 23, 2000

Jun 2, 1997

8/867251

Tung Chan Ma - Fort Lee NJ
Arnold L. Berzins - Westwood NJ
Charles J. Davis - Goshen NY
Bruce T. Watson - Shreveport LA

International Paper Company - Purchase NY

B32B 100
B32B 300

428 53

Paperboard having a water-repellant coating which includes a polymer matrix/wax/pigment mixture and is applied to the paperboard as an aqueous formulation. The polymer matrix includes polymer chains which are ionically cross-linked through pendant carboxylic acid groups to provide, together with the wax and pigment components, a substantially continuous, water-repellant film which more readily breaks down under the alkaline conditions of repulping. The coated board also exhibits low slip and resistance to blocking, and is particularly well-suited in corrugated box constructions used in shipping containers for perishable food items such as meats, poultry, fishery products, fruits and vegetables. The pigmented or unpigmented coating formulations are also used as an overcoat over preprinted paperboard surfaces to simultaneously provide scuff and water resistance.