US4197129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic support having improved adhesivness to material to be bonded thereto
Assignee: Konica Minolta Inc
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Filing: 1976-06-17
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Granted: 1980-04-08
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Expires: 1996-06-17
Abstract
Abstract A hydrophobic plastic support which has a layer thereon comprising a copolymer, said copolymer consisting essentially of an acrylic monomer selected from alkyl esters of acrylic acid and alkyl esters of methacrylic acid, and an ethylenically unsaturated monomer having a group of the formula -COXROH wherein X stands for an oxygen atom or <IMAGE> in which R' stands for a hydrogen atom, a substituted or unsubstituted alkyl group or a hydroxy group, and R stands for a substituted or unsubstituted alkylene group.
Inventors
- 👤 Yasuji Muroi
- 👤 Hideyasu Ohta
- 👤 Masaru Kanbe
- 👤 Jun Shirasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; C08J7/043; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; Y; Y10; Y10S; Y10S430/00; Y10S430/138
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A hydrophobic plastic support which has a layer thereon comprising a copolymer, and a photographic gelatin layer on said layer, said copolymer comprising (1) more than 50% by weight of an acrylic monomer selected from alkyl esters of acrylic acid and alkyl esters of methacrylic acid, and (2) 0.5 to 25% by weight of an ethylenically unsaturated monomer having a group of the formula --COXROH wherein X represents an oxygen atom or ##STR3## in which R' represents a hydrogen atom, a substituted or unsubstituted alkyl group or a hydroxy group, and R represents a substituted or unsubstituted alkylene group.
Claim 2
Dependent Claim
99 words
A hydrophobic plastic support which has a layer thereon comprising a copolymer, and a photographic gelatin layer on said layer, said copolymer comprising (1) more than 50% by weight of an acrylic monomer selected from alkyl esters of acrylic acid and alkyl esters of methacrylic acid, and (2) 0.5 to 25% by weight of an ethylenically unsaturated monomer having a group of the formula --COXROH wherein X represents an oxygen atom or ##STR3## in which R' represents a hydrogen atom, a substituted or unsubstituted alkyl group or a hydroxy group, and R represents a substituted or unsubstituted alkylene group.
Claim 3
Dependent Claim
49 words
The hydrophobic plastic support according to claim 1 wherein said copolymer further comprises 0 to 40% by weight of another monomer selected from the group consisting of styrene, acrylonitrile, α-methylstyrene, p-chlorostyrene, p-chloro-α-methylstyrene, acrylic acid, methacrylic acid, itaconic acid, maleic acid, acrylamide, vinyl acetate, methyl vinyl ether, butadiene and isoprene.
Claim 4
Dependent Claim
36 words
The hydrophobic plastic support according to claim 1 wherein said acrylic monomer is selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate and butyl methacrylate.
Claim 5
Dependent Claim
20 words
The hydrophobic plastic support according to claim 1 wherein said copolymer has a molecular weight of from 3000 to 150000.
Claim 6
Dependent Claim
26 words
The hydrophobic plastic support according to claim 1 wherein said support is selected from the group consisting of polyolefin, polystyrene, polyamide, polyester, polycarbonate and cellulose derivatives.
Claim 7
Dependent Claim
39 words
A method for adhering a photographic gelatin layer to a hydrophobic plastic support comprising applying to the support a layer comprising the copolymer of claim 1 and applying thereafter the photographic gelatin layer to the layer of the copolymer.
Claim 8
Dependent Claim
41 words
The method according to claim 1 further comprising pretreating the support by the method selected from a group consisting of corona discharge, ultraviolet radiation or flame treatment prior to the step of applying the layer comprising the copolymer to the support.
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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) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |