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US 6,599,393 B1Granted
Soft absorbent tissue containing hydrophilically-modified amino-functional 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 polydimethylsiloxane. The hydrophilically-modified amino-functional polydimethylsiloxane structure has one or more pendant groups containing ethylene oxide moieties.
Claims35
A tissue containing a hydrophilically-modified amino-functional polysiloxane having the following general structure:
- wherein
- R1 is a C1 to C8 straight chain, branched, cyclic alkyl radical;
- R2, R3, and R4 are independently a C2 to C10 straight chain, branched, cyclic, unsubstituted or substituted alkylene diradical;
- m=1 to 10,000;
- n=20 to 100,000;
- r=1 to10,000;
- s=O to 10,000;
- t=0 or 1;
- “A” is independently a N R5 R4 or (N R7 R8 R9)* X− radical;
- R5 and R6 are independently a radical of hydrogen, C1 to C8 alkyl, CO R15, COO R15, CONR15 R17, COR16—COR17 or —R18—COOR17;
- R7, and R5 are independently a C1 to C6 alkyl radical;
- R9 is a C1 to C30 straight chain, branched, substituted or unsubstituted alkyl radical, or a SO2PhR10 where Ph is a phenyl group;
- R10 is a C1 to C30 straight chain, branched, substituted or unsubstituted alkyl radical;
- “X” is a halide a sulfate or other counter ion;
- R15 and R17 are independently a C1 to C30 straight chain, branched, substituted or unsubstituted alkyl radical;
- R16, R15 are independently a C1 to C8 ethylene diradical;
- and
- “B” is a hydrogen, an amino acid or an aminoacid derivative, a C1 to C6 straight chain, branched, cyclic alkyl radical or independently a radical of “A”.
15 more elements
Dependencies are inferred from the claim text.