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US 6,365,667 B1Granted
Synthetic polymers having hydrogen bonding capability and containing aliphatic hydrocarbon moieties
AssigneeKimberly-Clark Worldwide, Inc.
InventorsThomas Gerard Shannon, Daniel Arthur Clarahan, Mike Thomas Goulet, Wen Zyo Schroeder
Life of this patent
Estimating the term…
Abstract
Synthetic polymers having hydrogen bonding capability and one or more aliphatic hydrocarbon moieties are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two different molecules. The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and polyacrylic acids.
Claims46
A paper sheet comprising a synthetic polymer having hydrogen bonding capability and containing one or more aliphatic hydrocarbon moieties, said polymer having the following structure:
- where:
- a, b, d>0;
- c≧0;
- w≧1;
- Q1=a monomer unit or a block or graft copolymer containing a pendant group capable of forming hydrogen or covalent bonds with cellulose;
- Q2=a monomer unit or a block or graft copolymer containing a C8 or higher linear or branched, saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon moiety,
- Q3=a monomer unit or a block or graft copolymer containing a charge functionality;
- and
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety, which is desirable for making the material into a form suitable for papermaking.
6 more elements
A paper sheet comprising a synthetic polymer having hydrogen bonding capability and containing one or more aliphatic hydrocarbon moieties, said polymer having the following structure:
- where:
- w≧1;
- R1,R1′,R2, R3=H or C1-4 alkyl;
- a, b, d>0;
- c≧0;
- R0=a group capable of forming hydrogen or covalent bonds with cellulose;
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety;
- A1=—H, —COOH;
- R4=a Z1—R6—Y radical,
- where:
- Z1=any radical capable of bonding the R6 group to the polymer;
- R6=any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon;
- Y=—H, —N+R7R8R9, or —NR7R8, where R7, R8, R9 are same or different and are H or C1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where:
- at least one of R6, R7, R8, R9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher;
- R5=Z1—R10—W,
- where:
- Z1=any radical capable of bonding the R10 group to the polymer;
- R10=any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons;
- and
- W=—N+R11,R12,R13 , where R11, R12, R13 are C1-4 alkyl groups.
17 more elements
A paper sheet comprising a synthetic polymer having hydrogen bonding capability and containing one or more aliphatic hydrocarbon moieties, said polymer having the following structure:
- where:
- w≧1;
- R1,R1′,R2, R3=H or C1-4 alkyl;
- a, b>0;
- c,d≧0 such that c+d>0;
- R0=a group capable of forming hydrogen or covalent bonds with cellulose;
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety;
- A1=—H, —COOH;
- R4=a Z1—R6—Y radical,
- where:
- Z1=any radical capable of bonding the R6 group to the polymer;
- R6=any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon;
- Y=—H, —N+R7R8R9, or —NR7R8, where R7, R8, R9 are same or different and are H or C1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where:
- at least one of R6, R7, R8, R9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher.
11 more elements
A method of making a paper sheet comprising the steps of:
- (a) forming an aqueous suspension of papermaking fibers;
- (b) depositing the aqueous suspension of papermaking fibers onto a forming fabric to form a web;
- and (c) dewatering and drying the web to form a paper sheet, wherein a synthetic polymer is added to the aqueous suspension of fibers and/or the web, said polymer having the following structure:
- where:
- a, b, d>0;
- c≧0;
- w≧1;
- Q1=a monomer unit or a block or graft copolymer containing a pendant group capable of forming hydrogen or covalent bonds with cellulose;
- Q2=a monomer unit or a block or graft copolymer containing a C8 or higher linear or branched, saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon moiety;
- Q3=a monomer unit or a block or graft copolymer containing a charge functionality;
- and
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety, which is desirable for making the material into a form suitable for papermaking.
9 more elements
A method of making a paper sheet comprising the steps of:
- (a) forming an aqueous suspension of papermaking fibers;
- (b) depositing the aqueous suspension of papermaking fibers onto a forming fabric to form a web;
- and (c) dewatering and drying the web to form a paper sheet, wherein a synthetic polymer is added to the aqueous suspension of fibers and/or the web, said polymer having the following structure:
- where:
- w≧1;
- R1,R1′,R2, R3=H or C1-4 alkyl;
- a, b, d>0;
- c≧0;
- R0=a group capable of forming hydrogen or covalent bonds with cellulose;
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety;
- A1=—H, —COOH;
- R4=a Z1—R6—Y radical,
- where:
- Z1=any radical capable of bonding the R6 group to the polymer;
- R6=any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon;
- Y=—H, —N+R7R8R9, or —NR7R8, where R7, R8, R9 are same or different and are H or C1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where:
- at least one of R6, R7, R8, R9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher;
- R5=Z1—R10—W,
- where:
- Z1=any radical capable of bonding the R10 group to the polymer;
- R10=any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons;
- and
- W=—N+R11,R12,R13, where R11, R12, R13 are C1-4 alkyl groups.
20 more elements
A method of making a paper sheet comprising the steps of:
- (a) forming an aqueous suspension of papermaking fibers;
- (b) depositing the aqueous suspension of papermaking fibers onto a forming fabric to form a web;
- and (c) dewatering and drying the web to form a paper sheet, wherein a synthetic polymer is added to the aqueous suspension of fibers and/or the web, said polymer having the following structure:
- where:
- w≧1;
- R1,R1′,R2, R3=H or C1-4 alkyl;
- a, b>0;
- c,d≧0 such that c+d>0;
- R0=a group capable of forming hydrogen or covalent bonds with cellulose;
- Q4=a monomer unit or a block or graft copolymer containing a hydrophilic moiety;
- A1=—H, —COOH;
- R4=a Z1—R6—Y radical,
- where:
- Z1=any radical capable of bonding the R6 group to the polymer;
- R6=any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon;
- Y=—H, —N+R7R8R9, or —NR7R8, where R7, R8, R9 are same or different and are H or C1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where:
- at least one of R6, R7, R8, R9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher.
14 more elements
Dependencies are inferred from the claim text.