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US 6,582,558 B1Granted
Soft absorbent tissue containing hydrophilic polysiloxanes
AssigneeKimberly-Clark Worldwide, Inc.
InventorKou-Chang Liu
Life of this patent
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Abstract
A tissue product having improved hand feel and good wettability is produced by printing onto one or both sides of the tissue an aqueous emulsion containing a hydrophilically-modified amino-functional polysiloxane.
Claims34
A tissue having a Wet Out Time of about 10 seconds or less and containing at least about 2 dry weight percent of a hydrophilically-modified amino-functional polysiloxane having the following structure:
- wherein:
- m=1-10,000;
- n=10-100,000;
- “X” is selected from the group consisting of hydroxy;
- C1-C20 alkoxy, C1-C24 alkyl radical, which can be straight chain, branched or cyclic, unsubstituted or substituted;
- R1=a C1-C6 alkyl radical, which can be straight chain, branched or cyclic;
- and
- wherein
- t=0 or 1;
- w=0 or 1;
- R2=a C2-C10 alkylene diradical, which can be straight chain or branched, substituted or unsubstituted;
- R3=a C2-C10 alkylene diradical, which can be straight chain or branched, substituted or unsubstituted;
- R4=hydrogen or a C1-C10 alkyl radical, which can be straight chain, branched or cyclic, substituted or unsubstituted or a —COR6COOL, or —COR6COOR7 radical;
- R5=a hydrogen, a C1-C10 alkyl radical, which can be straight chain or branched, substituted or unsubstituted or a —COR6COOL, or —COR6COOR7 radical, or a “Y”;
- such that when t=1, “Y”=a —COR6COOL radical or a —COR6—COOR7 radical;
- such that when t=0, “Y”=a COR6CO diradical, a COR6 diradical, or a —CONR7R6CO diradical,
- wherein
- R6 is a C2-C8 alkylene diradical, substituted or unsubstituted;
- R7 is a hydrogen, C1-C30 alkyl radical, substituted or unsubstituted;
- and
- L=a hydrogen, sodium, potassium, calcium or other ion;
- such that when X=G, Y can also be a COR8,
- wherein R8 is a C1-C30 alkyl radical, substituted or unsubstituted.
20 more elements
Dependencies are inferred from the claim text.