| PATENT NUMBER | This data is not available for free |
| PATENT GRANT DATE | April 2, 2002 |
| PATENT 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 |
| PATENT INVENTORS | This data is not available for free |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT FILE DATE | August 21, 2000 |
| PATENT PARENT CASE TEXT | This data is not available for free |
| PATENT CLAIMS |
We claim: 1. 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: ##STR25## where: a, b, d>0; c.gtoreq.0; w.gtoreq.1; Q.sub.1 =a monomer unit or a block or graft copolymer containing a pendant group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.2 =a monomer unit or a block or graft copolymer containing a C.sub.8 or higher linear or branched, saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon moiety, Q.sub.3 =a monomer unit or a block or graft copolymer containing a charge functionality; and Q.sub.4 =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. 2. The paper sheet of claim 1 wherein the pendant group on Q.sub.1 capable of forming hydrogen or covalent bonds is selected from the group consisting of --CONH.sub.2, --COOH, --COO.sup.- M.sup.+, --OH, --CONHCHOHCHO and mixtures thereof, wherein M+ is a counter ion. 3. The paper sheet of claim 1 wherein Q.sub.2 is of the form --Z.sub.1 --Q.sub.2 --Z.sub.1 '-- where Z.sub.1, Z.sub.1 ' are bridging radicals, which can be the same or different. 4. The paper sheet of claim 1 wherein Q.sub.4 is of the form --Z.sub.2 --Q.sub.4 --Z.sub.2 '-- where Z.sub.2, Z.sub.2 ' are bridging radicals, which can be the same or different. 5. The paper sheet of claim 1 wherein Q.sub.4 is a radical of the form --CHR.sub.1 CR.sub.30 R.sub.1 '-- wherein R.sub.30 is an aliphatic polyether derivative of the formula --[(CR.sub.2 R.sub.2).sub.x O].sub.y --R.sub.3 where: R.sub.1, R.sub.1 ' is --H, C.sub.1-4 alkyl; R.sub.2, R.sub.2 ' is --H or --CH.sub.3 ; x.gtoreq.2; y.gtoreq.2; and R.sub.3 is a terminal group selected from the group consisting of --CH.sub.3, --H, --C.sub.2 H.sub.5, and --NH.sub.2. 6. The paper sheet of claim 1 wherein Q.sub.3 is ##STR26## 7. The paper sheet of claim 1 wherein Q.sub.3 is a radical of the form --CHR.sub.1 CR.sub.20 R.sub.1 '-- wherein R.sub.20 =a pendant group of the form Z.sub.1 --R.sub.10 --W where Z.sub.1 is a radical capable of bonding the R.sub.10 group to the polymer; R.sub.1 and R.sub.1 ' are --H or a C.sub.1-4 alkyl group; R.sub.10 =any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons; and W=--N+R.sub.11,R.sub.12,R.sub.13 where R.sub.11, R.sub.12, R.sub.13 is a C.sub.1-4 alkyl group. 8. The paper sheet of claim 7 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONH--, --O--, --S--, and --OSO.sub.2 O--. 9. The paper sheet of claim 7 wherein R.sub.10 is --(CH.sub.2 CH.sub.2)-- or --C(CH.sub.3).sub.2 CH.sub.2 CH.sub.2 --. 10. The paper sheet of claim 1 wherein "c" is 0. 11. The paper sheet of claim 1 wherein the pendant group on Q.sub.1 capable of forming hydrogen bonds is --CONH.sub.2. 12. The paper sheet of claim 1 wherein the pendant group on Q.sub.1 capable of forming covalent bonds is --CONHCHOHCHO. 13. The paper sheet of claim 1 wherein Q.sub.1 has --ONH.sub.2 and --CONHCHOHCHO pendant groups. 14. 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: ##STR27## where: w.gtoreq.1; R.sub.1,R.sub.1 ',R.sub.2, R.sub.3 =H or C.sub.1-4 alkyl; a, b, d>0; c.gtoreq.0; R.sub.0 =a group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.4 =a monomer unit or a block or graft copolymer containing a hydrophilic moiety; A.sub.1 =--H, --COOH; R.sub.4 =a Z.sub.1 --R.sub.6 --Y radical, where: Z.sub.1 =any radical capable of bonding the R.sub.6 group to the polymer; R.sub.6 =any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon; Y=--H, --N.sup.+ R.sub.7 R.sub.8 R.sub.9, or --NR.sub.7 R.sub.8, where R.sub.7, R.sub.8, R.sub.9 are same or different and are H or C.sub.1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where: at least one of R.sub.6, R.sub.7, R.sub.8, R.sub.9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher; R.sub.5 =Z.sub.1 --R.sub.10 --W, where: Z.sub.1 =any radical capable of bonding the R.sub.10 group to the polymer; R.sub.10 =any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons; and W=--N.sup.+ R.sub.11,R.sub.12,R.sub.13 , where R.sub.11, R.sub.12, R.sub.13 are C.sub.1-4 alkyl groups. 15. The paper sheet of claim 14 wherein R.sub.0 is selected from the group consisting of --CONH.sub.2, --COOH, --COO.sup.- M.sup.+, --OH, --CONHCHOHCHO, and mixtures thereof, wherein M.sup.+ is a counter ion. 16. The paper sheet of claim 14 wherein Q.sub.4 is of the form --Z.sub.2 --Q.sub.4 --Z.sub.2 -- where Z.sub.2, Z.sub.2 ' are bridging radicals, which can be the same or different. 17. The paper sheet of claim 14 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONR'--, --O--, --S--, --OSO.sub.2 O--, --CONHCO--, and --CONHCHOHCHOO--, and where R' is H or C.sub.1-4 alkyl. 18. The paper sheet of claim 14 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONH--, --O--, --S--, and --OSO.sub.2 O--. 19. The paper sheet of claim 14 wherein R.sub.10 is --(CH.sub.2 CH.sub.2)-- or --C(CH.sub.3).sub.2 CH.sub.2 CH.sub.2 --. 20. The paper sheet of claim 14 wherein A.sub.1 is --H and R.sub.0 is --CONH.sub.2. 21. The paper sheet of claim 14 wherein A.sub.1 is --H and R.sub.0 is --CONHCHOHCHO. 22. The paper sheet of claim 14 wherein R.sub.0 consists of both --CONH.sub.2 and --CONHCHOHCHO groups. 23. 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: ##STR28## where: w.gtoreq.1; R.sub.1,R.sub.1 ',R.sub.2, R.sub.3 =H or C.sub.1-4 alkyl; a, b>0; c,d.gtoreq.0 such that c+d>0; R.sub.0 =a group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.4 =a monomer unit or a block or graft copolymer containing a hydrophilic moiety; A.sub.1 =--H, --COOH; R.sub.4 =a Z.sub.1 --R.sub.6 --Y radical, where: Z.sub.1 =any radical capable of bonding the R.sub.6 group to the polymer; R.sub.6 =any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon; Y=--H, --N.sup.+ R.sub.7 R.sub.8 R.sub.9, or --NR.sub.7 R.sub.8, where R.sub.7, R.sub.8, R.sub.9 are same or different and are H or C.sub.1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where: at least one of R.sub.6, R.sub.7, R.sub.8, R.sub.9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher. 24. 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: ##STR29## where: a, b, d>0; c.gtoreq.0; w.gtoreq.1; Q.sub.1 =a monomer unit or a block or graft copolymer containing a pendant group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.2 =a monomer unit or a block or graft copolymer containing a C.sub.8 or higher linear or branched, saturated or unsaturated, substituted or unsubstituted aliphatic hydrocarbon moiety; Q.sub.3 =a monomer unit or a block or graft copolymer containing a charge functionality; and Q.sub.4 =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. 25. The method of claim 24 wherein the pendant group on Q.sub.1 capable of forming hydrogen or covalent bonds is selected from the group consisting of --CONH.sub.2, --COOH, --COO.sup.- M.sup.+, --OH, --CONHCHOHCHO and mixtures thereof, wherein M+ is a counter ion. 26. The method of claim 24 wherein Q.sub.2 is of the form --Z.sub.1 --Q.sub.2 --Z.sub.1 '-- where Z.sub.1, Z.sub.1 ' are bridging radicals, which can be the same or different. 27. The method of claim 24 wherein Q.sub.4 is of the form --Z.sub.2 --Q.sub.4 --Z.sub.2 '-- where Z.sub.2, Z.sub.2 ' are bridging radicals, which can be the same or different. 28. The method of claim 24 wherein Q.sub.4 is a radical of the form --CHR.sub.1 CR.sub.30 R.sub.1 '-- wherein R.sub.30 is an aliphatic polyether derivative of the formula --[(CR.sub.2 R.sub.2).sub.x O].sub.y --R.sub.3 where: R.sub.1, R.sub.1 ' is --H, C.sub.1-4 alkyl; R.sub.2, R.sub.2 ' is --H or --CH.sub.3 ; x.gtoreq.2; y.gtoreq.2; and R.sub.3 is a terminal group selected from the group consisting of --CH.sub.3, --H, --C.sub.2 H.sub.5, and --NH.sub.2. 29. The method of claim 24 wherein Q.sub.3 is ##STR30## 30. The method of claim 24 wherein Q.sub.3 is a radical of the form --CHR.sub.1 CR.sub.20 R.sub.1 '-- wherein R.sub.20 =a pendant group of the form Z.sub.1 --R.sub.10 --W, where Z.sub.1 is a radical capable of bonding the R.sub.10 group to the polymer; R.sub.1 and R.sub.1 ' are --H or a C.sub.1-4 alkyl group; R.sub.10 =any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons; and W=--N.sup.+ R.sub.11,R.sub.12,R.sub.13 where R.sub.11, R.sub.12, R.sub.13 is a C.sub.1-4 alkyl group. 31. The method of claim 30 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONH--, --O--, --S--, and --OSO.sub.2 O--. 32. The method of claim 30 wherein R.sub.10 is --(CH.sub.2 CH.sub.2)-- or --C(CH.sub.3).sub.2 CH.sub.2 CH.sub.2 --. 33. The method of claim 24 wherein "c" is 0. 34. The method of claim 24 wherein the pendant group on Q.sub.1 capable of forming hydrogen bonds is --CONH.sub.2. 35. The method of claim 24 wherein the pendant group on Q.sub.1 capable of forming covalent bonds is --CONHCHOHCHO. 36. The method of claim 24 wherein Q.sub.1 has --CONH.sub.2 and --CONHCHOHCHO pendant groups. 37. 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: ##STR31## where: w.gtoreq.1; R.sub.1,R.sub.1 ',R.sub.2, R.sub.3 =H or C.sub.1-4 alkyl; a, b, d>0; c.gtoreq.0; R.sub.0 =a group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.4 =a monomer unit or a block or graft copolymer containing a hydrophilic moiety; A.sub.1 =--H, --COOH; R.sub.4 =a Z.sub.1 --R.sub.6 --Y radical, where: Z.sub.1 =any radical capable of bonding the R.sub.6 group to the polymer; R.sub.6 =any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon; Y=--H, --N.sup.+ R.sub.7 R.sub.8 R.sub.9, or --NR.sub.7 R.sub.8, where R.sub.7, R.sub.8, R.sub.9 are same or different and are H or C.sub.1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where: at least one of R.sub.6, R.sub.7, R.sub.8, R.sub.9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher; R.sub.5 =Z.sub.1 --R.sub.10 --W, where: Z.sub.1 =any radical capable of bonding the R.sub.10 group to the polymer; R.sub.10 =any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons; and W=--N.sup.+ R.sub.11,R.sub.12,R.sub.13, where R.sub.11, R.sub.12, R.sub.13 are C.sub.1-4 alkyl groups. 38. The method of claim 37 wherein R.sub.0 is selected from the group consisting of --CONH.sub.2, --COOH, --COO.sup.- M.sup.+, --OH, --CONHCHOHCHO, and mixtures thereof, wherein M.sup.+ is a counter ion. 39. The method of claim 37 wherein Q.sub.4 is of the form --Z.sub.2 --Q.sub.4 --Z.sub.2 '-- where Z.sub.2, Z.sub.2 ' are bridging radicals, which can be the same or different. 40. The method of claim 37 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONR'--, --O--, --S--, --OSO.sub.2 O--, --CONHCO--, and --CONHCHOHCHOO--, and where R' is H or C.sub.1-4 alkyl. 41. The method of claim 37 wherein Z.sub.1 is selected from the group consisting of aryl, --CH.sub.2 --, --COO--, --CONH--, --O--, --S--, and --OSO.sub.2 O--. 42. The method of claim 37 wherein R.sub.10 is --(CH.sub.2 CH.sub.2)-- or --C(CH.sub.3).sub.2 CH.sub.2 CH.sub.2 13. 43. The method of claim 37 wherein A.sub.1 is --H and R.sub.0 is --CONH.sub.2. 44. The method of claim 37 wherein A.sub.1 is --H and R.sub.0 is --CONHCHOHCHO. 45. The method of claim 37 wherein R.sub.0 consists of both --CONH.sub.2 and --CONHCHOHCHO groups. 46. 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: ##STR32## where: w.gtoreq.1; R.sub.1,R.sub.1 ',R.sub.2, R.sub.3 =H or C.sub.1-4 alkyl; a, b>0; c,d.gtoreq.0 such that c+d>0; R.sub.0 =a group capable of forming hydrogen or covalent bonds with cellulose; Q.sub.4 =a monomer unit or a block or graft copolymer containing a hydrophilic moiety; A.sub.1 =--H, --COOH; R.sub.4 =a Z.sub.1 --R.sub.6 --Y radical, where: Z.sub.1 =any radical capable of bonding the R.sub.6 group to the polymer; R.sub.6 =any linear or branched, saturated or unsaturated, substituted or non-substituted aliphatic hydrocarbon; Y=--H, --N.sup.+ R.sub.7 R.sub.8 R.sub.9, or --NR.sub.7 R.sub.8, where R.sub.7, R.sub.8, R.sub.9 are same or different and are H or C.sub.1-30 linear or branched, saturated or unsaturated aliphatic hydrocarbons and where: at least one of R.sub.6, R.sub.7, R.sub.8, R.sub.9 must be a linear or branched, substituted or non-substituted, aliphatic hydrocarbon having a carbon chain length of 8 or higher. -------------------------------------------------------------------------------- |
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