Precoat resin dispersion for tufted carpets
AssigneeHercules Incorporated
InventorRaymond W. Goss
Life of this patent
Estimating the term…
Abstract
Disclosed is a precoat resin dispersion having a solids content from about 63% to about 69% comprising (1) at least one resin having a Ring and Ball softening point from about 60.degree. C. to about 100.degree. C. in an aqueous dispersion having a solids content from about 53% to about 58%; (2) at least one water-soluble polymer; (3) at least one cationic resin; and (4) water. The precoat resin dispersion is useful in the manufacture of tufted carpets, especially carpets manufactured with carboxylated latices as a backcoat.
Claims9
A precoat resin dispersion having a solids content from about 63% to about 69% comprising
- (a) from about 93% to about 99% by weight of at least one resin material selected from the group consisting of C.sub.5 -C.sub.9 hydrocarbon resins, C.sub.5 hydrocarbon resins polyterpene resins and esters of rosin having a Ring and Ball softening point of from about 60.degree. C. to about 100.degree. C. in an aqueous dispersion having a solids content from about 53% to about 58%;
- (b) from about 0.5% to about 5%, by weight of the total water content of (a), of at least one water-soluble polymer selected from the group consisting of polyacrylates and cellulose derivatives;
- (c) from about 0.1% to about 2.0% of at least one cationic polyamide-epichlorohydrin resin, by weight of the total solids of (a);
- and
- (d) optionally, sufficient water so that the solids content of the precoat resin dispersion is from about 63% to about 69%.
A precoat resin dispersion having a solids content from about 64% to about 67% comprising
- (a) from about 94% to about 97% by weight of at least one resin material selected from the group consisting of C.sub.5 -C.sub.9 hydrocarbon resins, C.sub.5 hydrocarbon resins, polyterpene resins and esters of rosin having a Ring and Ball softening point of from about 60.degree. C. to about 100.degree. C. in an aqueous dispersion having a solids content from about 54% to about 56%;
- (b) from about 1.5% to about 2.5%, by weight of the total water content of (a), of at least one water-soluble polymer selected from the group consisting of polyacrylates and cellulose derivatives;
- (c) from about 0.5% to about 1.5% of at least one cationic polyamide-epichlorohydrin resin, by weight of the total solids of (a);
- and
- (d) optionally, sufficient water so that the solids content of the precoat resin dispersion is from about 64% to about 67%.
Dependencies are inferred from the claim text.