Absorbent pad
AssigneeColgate-Palmolive Company
InventorHamzeh Karami
Life of this patent
Estimating the term…
Abstract
An absorbent pad such as a disposable diaper, sanitary napkin, bandage or the like for use in contact with the skin for absorbing body fluids and having a mass of material including a solid, finely-divided mixture of a hydrolyzed starch polyacrylonitrile graft copolymer in acidic form comprised of 0.6 to 2 parts by weight of hydrolyzed grafted polyacrylonitrile in acidic form per part by weight of starch and a non-irritating and non-toxic water-soluble basic material, the relative proportion of base to copolymer being from 1:4 to 1:1 by weight.
Claims7
An absorbent pad for use in contact with the skin comprising a water pervious facing layer for contacting the skin, a water-impervious backing sheet bonded to the facing layer around its periphery to form a container, and disposed within said container an absorbent mass comprising a solid finely-divided mixture of (1) a completely hydrolyzed starch-polyacrylonitrile graft copolymer in acidic form containing 0.6 to 2 parts by weight of grafted hydrolyzed polyacrylonitrile per part by weight of starch and (2) a non-irritating and non-toxic water-soluble basic material, the relative proportion of base to copolymer being from 1:4 to 1:1 by weight.
Dependencies are inferred from the claim text.