Abstract 1. AN AQUEOUS DISPERSION CONSISTING ESSENTIALLY OF A VINYLAMIDE POLYMER USEFUL AS A STRENGTHENING AGENT IN THE MANUFACTURE OF PAPER, CONSISTING ESSENTIALLY OF AT LEAST 60 WEIGHT PERCENT OF UNSUBSTITED ACRYLAMIDE LINKAGES AS DRY STRENGTHENING COMPONENTS AND AT LEAST 5 WEIGHT PERCENT OF HYDROPHOLIC VINYL LINKAGES AS COMPONENTS IMPROVING THE ADSORPTIVITY OF SAID POLYMER BY CELLULOSE FIBERS IN AQUEOUS SUSPENSION, THE RATIO BETWEEN ABOUT 60:40 AND AND HYDROPHOBIC LINKAGES BEING BETWEEN ABOUT 60:40 AND 95:5 BY WEIGHT AND BEING SUCH WITHIN SAID RANGE THAT THE POLYMER IS SUBSTANTIALLY AUTODISPERSIBLE IN WATER; SAID DISPERSION AR 10% BY WEIGHT POLYMER CONTENT, AT PH 7.0 AND AT 25* C. HAVING A VISCOSITY IN THE RANGE IF 250 TO 200,000 CENTIPOSES.
AN AQUEOUS DISPERSION CONSISTING ESSENTIALLY OF A VINYLAMIDE POLYMER USEFUL AS A STRENGTHENING AGENT IN THE MANUFACTURE OF PAPER, CONSISTING ESSENTIALLY OF AT LEAST 60 WEIGHT PERCENT OF UNSUBSTITED ACRYLAMIDE LINKAGES AS DRY STRENGTHENING COMPONENTS AND AT LEAST 5 WEIGHT PERCENT OF HYDROPHOLIC VINYL LINKAGES AS COMPONENTS IMPROVING THE ADSORPTIVITY OF SAID POLYMER BY CELLULOSE FIBERS IN AQUEOUS SUSPENSION, THE RATIO BETWEEN ABOUT 60:40 AND AND HYDROPHOBIC LINKAGES BEING BETWEEN ABOUT 60:40 AND 95:5 BY WEIGHT AND BEING SUCH WITHIN SAID RANGE THAT THE POLYMER IS SUBSTANTIALLY AUTODISPERSIBLE IN WATER; SAID DISPERSION AR 10% BY WEIGHT POLYMER CONTENT, AT PH 7.0 AND AT 25* C. HAVING A VISCOSITY IN THE RANGE IF 250 TO 200,000 CENTIPOSES.
Claim 2
Dependent Claim
116 words
AN AQUEOUS DISPERSION CONSISTING ESSENTIALLY OF A VINYLAMIDE POLYMER USEFUL AS A STRENGTHENING AGENT IN THE MANUFACTURE OF PAPER, CONSISTING ESSENTIALLY OF AT LEAST 60 WEIGHT PERCENT OF UNSUBSTITED ACRYLAMIDE LINKAGES AS DRY STRENGTHENING COMPONENTS AND AT LEAST 5 WEIGHT PERCENT OF HYDROPHOLIC VINYL LINKAGES AS COMPONENTS IMPROVING THE ADSORPTIVITY OF SAID POLYMER BY CELLULOSE FIBERS IN AQUEOUS SUSPENSION, THE RATIO BETWEEN ABOUT 60:40 AND AND HYDROPHOBIC LINKAGES BEING BETWEEN ABOUT 60:40 AND 95:5 BY WEIGHT AND BEING SUCH WITHIN SAID RANGE THAT THE POLYMER IS SUBSTANTIALLY AUTODISPERSIBLE IN WATER; SAID DISPERSION AR 10% BY WEIGHT POLYMER CONTENT, AT PH 7.0 AND AT 25* C. HAVING A VISCOSITY IN THE RANGE IF 250 TO 200,000 CENTIPOSES.