US4431769A
Expired / Lapsed
US
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Binder composition for paper-coating materials
Assignee: Resonac Holdings Corp
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Filing: 1981-12-10
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Granted: 1984-02-14
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Expires: 2001-12-10
Abstract
Abstract A binder composition for paper-coating materials having excellent binder performance is disclosed, which comprises an aqueous solution of one or more water-soluble copolymers of (A) 50 to 95 wt % of acryl- or methacrylamide and (B) 5 to 50 wt % of at least one acrylic- or methacrylic acid derivative such as alkyl or hydroxyalkyl esters, N-methylolamides and nitriles.
Inventors
- 👤 Eiichi Yoshida
- 👤 Susumu Tago
- 👤 Kunio Imamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:37
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/337; B41M5/3372; C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F220/56; D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; B41M5/40; B41M5/42; B41M5/44
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
195 words
A binder composition for paper-coating materials, comprising an aqueous solution of one or more copolymers of (A) 50 to 95 wt% of acryl- or methacrylamide and (B) 5 to 50 wt% of at least one acrylic- or methacrylic acid derivative represented by the formulae (I), (II) and (III): ##STR26## wherein R 1 and R 2 each represents a hydrogen atom and methyl group; R 3 represents a C 1-4 alkyl group; a C 1-4 hydroxyalkyl group having 1 to 3 hydroxy group one of which may be replaced by a halogen atom or may form an ether bond with a C 1-4 alkyl group or a C 1-4 hydroxyalkyl group; or a cyclic ether by dehydration with an adjacent hydroxy group; --CH 2 CH 2 O) n R 4 ; --CH 2 CH 2 N(R 5 ,R 6 ) and --CH 2 CH 2 .sup.⊕ N(R 5 ,R 6 ,R 7 )Z.sup.⊖ ; R 4 represents a hydrogen atom or a methyl group; R 5 , R 6 and R 7 each represents a C 1-2 alkyl group; Z represents hydroxy ion or a halogen ion; and n is an integer of 2 to 25.
Claim 2
Dependent Claim
195 words
A binder composition for paper-coating materials, comprising an aqueous solution of one or more copolymers of (A) 50 to 95 wt% of acryl- or methacrylamide and (B) 5 to 50 wt% of at least one acrylic- or methacrylic acid derivative represented by the formulae (I), (II) and (III): ##STR26## wherein R 1 and R 2 each represents a hydrogen atom and methyl group; R 3 represents a C 1-4 alkyl group; a C 1-4 hydroxyalkyl group having 1 to 3 hydroxy group one of which may be replaced by a halogen atom or may form an ether bond with a C 1-4 alkyl group or a C 1-4 hydroxyalkyl group; or a cyclic ether by dehydration with an adjacent hydroxy group; --CH 2 CH 2 O) n R 4 ; --CH 2 CH 2 N(R 5 ,R 6 ) and --CH 2 CH 2 .sup.⊕ N(R 5 ,R 6 ,R 7 )Z.sup.⊖ ; R 4 represents a hydrogen atom or a methyl group; R 5 , R 6 and R 7 each represents a C 1-2 alkyl group; Z represents hydroxy ion or a halogen ion; and n is an integer of 2 to 25.
Claim 3
Dependent Claim
23 words
A binder composition as in claim 1, wherein the concentration of said copolymer in the aqueous solution is from 1 to 20 wt%.
Claim 4
Dependent Claim
49 words
A binder composition as in claim 1 or 2, wherein said acrylic- or methacrylic acid derivative (B) is represented by CH 2 ═CR 1 --COOR 8 , wherein R 1 represents hydrogen atom and methyl group and R 8 represents a C 1-4 hydroxyalkyl group having one hydroxy group.
Claim 5
Dependent Claim
71 words
A binder composition as in claim 1 or 2, wherein said acrylic- or methacrylic acid derivative (B) is a mixture of two monomers represented by CH 2 ═CR 1 --COOR 8 and CH 2 ═CR 1 --COOR 9 , respectively, wherein R 1 represents hydrogen atom or a methyl group, R 8 represents a C 1-4 hydroxyalkyl group having one hydroxy group and R 9 represents a C 1-4 alkyl group.
Claim 6
Dependent Claim
27 words
A binder composition as in claim 1 or 2, wherein said copolymer is a copolymer of acryl- or methacrylamide, N-methylol acryl- or methacrylamide and acrylo- or methacrylonitrile.
Claim 7
Dependent Claim
95 words
A binder composition as in claim 1 or 2, wherein said aqueous solution contains two copolymers, one being a copolymer of acryl- or methacrylamide and an acrylic- or methacrylic acid derivative represented by CH 2 ═CR 1 --COOR 8 and the other being a copolymer of acryl- or methacrylamide and an acrylic- or methacrylic acid derivative represented by CH 2 ═CR 1 --COOR 9 , wherein R 1 represents hydrogen atom and methyl group, R 8 represents a C 1-4 hydroxyalkyl group having one hydroxy group and R 9 represents a C 1-4 alkyl group.
Claim 8
Dependent Claim
33 words
A coating composition for heat-sensitive paper which comprises a leuco dye as a color former, a phenol compound or an organic acid as a color developer and a binder composition of claim 1.
Claim 9
Dependent Claim
35 words
A binder composition as in claim 1, wherein said one or more copolymers of (A) and (B) comprises copolymers of 70 to 90 wt. % of (A) and 10 to 30 wt. % of (B).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |