Patent US4328283A successfully refreshed from Google Patents.
US4328283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic polyester supports subjected to subbing treatment
Assignee: Konica Minolta Inc
•
Filing: 1979-11-13
•
Granted: 1982-05-04
•
Expires: 1999-11-13
Abstract
Abstract A photographic polyester support having an adjacent subbing layer which comprises a copolymer of (1) glycidyl acrylate and/or glycidyl methacrylate and (2) hydroxylalkyl acrylate with the alkyl groups of 2-4 carbon atoms and/or hydroxyalkyl methacrylate wherein 0-67 wt % of a copolymerizable vinyl monomer may be present and the method of subbing said support with an aqueous composition of the acrylate copolymer.
Inventors
- 👤 Takanori Nakadate
- 👤 Naoto Abe
- 👤 Kenichi Kitahara
- 👤 Hironobu Nakao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:25
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
50 words
A photographic polyester support having an adjacent sub layer containing a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 2
Dependent Claim
50 words
A photographic polyester support having an adjacent sub layer containing a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 3
Dependent Claim
49 words
A photographic polyester support according to claim 1 wherein the copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 4-40 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 4
Dependent Claim
49 words
A photographic polyester support according to claim 1 wherein the copolymer consisting essentially of (1) 35-65 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 5
Dependent Claim
49 words
A photographic polyester support according to claim 3 wherein the copolymer consisting essentially of (1) 35-65 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 4-40 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 6
Dependent Claim
65 words
A photographic polyester support having an adjacent sub layer containing a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer, wherein said copolymer has a glass transition point ranging from -30° C. to 40° C.
Claim 7
Dependent Claim
65 words
A photographic polyester support having an adjacent sub layer containing a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxyalkyl methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer, wherein said copolymer has a glass transition point ranging from -30° C. to 40° C.
Claim 8
Independent Claim
63 words
A method for subbing a photographic polyester support comprising coating an aqueous copolymer composition onto said support, wherein the aqueous copolymer composition contains a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxy methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 9
Independent Claim
63 words
A method for subbing a photographic polyester support comprising coating an aqueous copolymer composition onto said support, wherein the aqueous copolymer composition contains a copolymer consisting essentially of (1) 30-70 wt% glycidyl acrylate and/or glycidyl methacrylate monomer, (2) 3-45 wt% hydroxyalkyl acrylate having an alkyl group of 2 to 4 carbon atoms and/or hydroxy methacrylate monomer, and (3) 0-67 wt% copolymerizable vinyl monomer.
Claim 10
Dependent Claim
17 words
A method according to claim 6 wherein the aqueous copolymer composition contains further a surface active agent.
Claim 11
Dependent Claim
16 words
A method according to claim 6, wherein the photographic polyester support is a polyethylene terephthalate film.
Claim 12
Dependent Claim
18 words
A method according to claim 8 wherein the photographic polyester support is a biaxially stretched polyethylene terephthalate film.
References Cited (Backward Citations)
US3539476A
Cited
US3711284A
Cited
US4197129A
Cited
US4021245A
Cited
GB1463943A
Cited
US4128426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |