Compounded latex saturants for porous backings

Details Compounded latex saturants for porous backings Compounded latex saturants for porous backings

C - Chemistry, Metallurgy

08

L

C08L 21/00 (2006.01) C09J 7/02 (2006.01) C09J 7/04 (2006.01) D21H 17/37 (2006.01) D21H 17/62 (2006.01)

Patent

CA 2119600

Abstract The present invention is directed to a novel latex saturant for porous backings and porous sheets, especially for paper backings used in pressure sensitive adhesive tapes. The saturant includes a latex an elastomer base compounded with both tackifying resin and filler. The elastomer base may be either an acrylate or a rubber, such as carboxylated styrene-butadiene rubber. Paper incorporating the saturant of the invention provides a backing that retains flexibility, tensile and elongation, and gives an improved drape or hand. Pressure sensitive adhesive tapes which employ the compounded saturated backing show good adhesion with aging.

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