Cartridge cases from fibrous nitrocellulose and alkaline catalyzed phenolic resin
First Claim
10. A PROCESS FOR PREPARING RIGID, SHAPED, FELTED, FIBROUS COMBUSTIBLE PRODUCT HAVING HIGH TENSILE STRENGTH COMPRISING THE STEPS OF 8A) TREATING A HOMOGENEOUS AQUEOUS MIXTURE CONSISTING ESSENTIALLY OF AN AQUEOUS SUSPENSION OF 1 TO ABOUT 5 PARTS OF NITROCELLULOSE AND ABOUT 1 TO 2 PARTS OF CELLULOSE FIBERS, AND 1 PART OF RESIN BINDER CONSISTING ESSENTIALLY OF AN ALKALINE REACTION PRODUCT OF PHENOL AND FORMALDEHYDE CONTROLLED TO YIELD A RESIN WITH A VISCOSITY IN THE RANGE FROM ABOUT 200 TO 400 CPS. AND ABOUT 250-400% WATER TOLERANCE AT ABOUT 5060% SOLIDS CONTENT, WITH AN AMOUNT OF HALOGEN SALT OF A TRIVALENT METAL SUFFICIENT TO PRECIPITATE SAID RESIN BINDER, (B) REMOVING EXCESS WATER FFROM SAID MIXTURE TO DEPOSIT A FIBROUS MASS, (C) SHAPING SAID MASS, AND (D) HEATING SAID MASS AT 120-180*F. UNTIL DRY.
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Accused Products
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11 Claims
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10. A PROCESS FOR PREPARING RIGID, SHAPED, FELTED, FIBROUS COMBUSTIBLE PRODUCT HAVING HIGH TENSILE STRENGTH COMPRISING THE STEPS OF 8A) TREATING A HOMOGENEOUS AQUEOUS MIXTURE CONSISTING ESSENTIALLY OF AN AQUEOUS SUSPENSION OF 1 TO ABOUT 5 PARTS OF NITROCELLULOSE AND ABOUT 1 TO 2 PARTS OF CELLULOSE FIBERS, AND 1 PART OF RESIN BINDER CONSISTING ESSENTIALLY OF AN ALKALINE REACTION PRODUCT OF PHENOL AND FORMALDEHYDE CONTROLLED TO YIELD A RESIN WITH A VISCOSITY IN THE RANGE FROM ABOUT 200 TO 400 CPS. AND ABOUT 250-400% WATER TOLERANCE AT ABOUT 5060% SOLIDS CONTENT, WITH AN AMOUNT OF HALOGEN SALT OF A TRIVALENT METAL SUFFICIENT TO PRECIPITATE SAID RESIN BINDER, (B) REMOVING EXCESS WATER FFROM SAID MIXTURE TO DEPOSIT A FIBROUS MASS, (C) SHAPING SAID MASS, AND (D) HEATING SAID MASS AT 120-180*F. UNTIL DRY.
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11. THE METHOD OF MAKING A RIGID COMBUSTIBLE PRODUCT COMPRISING HOMOGENEOUSLY MIXING NITROCELLULOSE FIBERS, CELLULOSE FIBERS, WATER DISPERSED PHENOL-FORMALDEHYDE RESIN, PRECIPITANT FOR SAID RESIN, AND WATER;
- REMOVING A MAJOR AMOUNT OF THE WATER TO LEAVE A WET FIBROUS MASS;
MOLDING SAID MASS;
AND HEATING SAID MASS TO A TEMPERATURE IN THE RANGE OF ABOUT 120-180*F. UNTIL DRY.
- REMOVING A MAJOR AMOUNT OF THE WATER TO LEAVE A WET FIBROUS MASS;
Specification