US4571379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic polyester supports with copolymer subbing layer
Assignee: Konica Minolta Inc
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Filing: 1985-02-13
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Granted: 1986-02-18
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Expires: 2005-02-13
Abstract
Abstract Photographic support having coated over a polyester support as a subbing layer a specific aqueous copolymer composition, said subbing layer being formed by coating aqueous composition containing copolymer substantially composed of a specific combination of three or four monomer components. Said photographic support has firm adhesive property, good flatness and other advantages.
Inventors
- 👤 Toshiaki Yamazaki
- 👤 Takanori Nakadate
- 👤 Kenichi Kitahara
- 👤 Noboru Fujimori
- 👤 Morio Kobayashi
- 👤 Ryuji Shimosaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:40
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
213 words
A support for use in a light-sensitive photographic material which comprises a subbing layer on at least one side of a polyester substrate, said subbing layer being formed by coating an aqueous composition containing a copolymer consisting essentially of 3to 45% by weight of a monomer of formula (I) based on the weight of said copolymer ##STR5## wherein R 1 is an alkylene group having 2 to 4 carbon atoms and R 2 is a hydrogen atom or a methyl group; 10to 45% by weight of a monomer of formula (II) based on the weight of said copolymer ##STR6## wherein R 3 is a straight chain alkyl group having 2 to 8 carbon atoms; and 10to 70% by weight based on the weight of said copolymer of at least one monomer selected from the group consisting of (i) a monomer of formula (III) ##STR7## and (ii) a monomer of formula (IV) ##STR8## wherein R 4 is a hydrogen atom or a methyl group and R 5 is a straight or branched chain alkyl group having 2 to 8 carbon atoms, provided that when R 4 is a hydrogen atom, R 5 is said branched chain alkyl group and, when R 4 is a methyl group, R 5 is said straight chain alkyl group.
Claim 2
Dependent Claim
213 words
A support for use in a light-sensitive photographic material which comprises a subbing layer on at least one side of a polyester substrate, said subbing layer being formed by coating an aqueous composition containing a copolymer consisting essentially of 3to 45% by weight of a monomer of formula (I) based on the weight of said copolymer ##STR5## wherein R 1 is an alkylene group having 2 to 4 carbon atoms and R 2 is a hydrogen atom or a methyl group; 10to 45% by weight of a monomer of formula (II) based on the weight of said copolymer ##STR6## wherein R 3 is a straight chain alkyl group having 2 to 8 carbon atoms; and 10to 70% by weight based on the weight of said copolymer of at least one monomer selected from the group consisting of (i) a monomer of formula (III) ##STR7## and (ii) a monomer of formula (IV) ##STR8## wherein R 4 is a hydrogen atom or a methyl group and R 5 is a straight or branched chain alkyl group having 2 to 8 carbon atoms, provided that when R 4 is a hydrogen atom, R 5 is said branched chain alkyl group and, when R 4 is a methyl group, R 5 is said straight chain alkyl group.
Claim 3
Dependent Claim
17 words
The support of claim 1, wherein said copolymer consists essentially of said monomers (I), (II) and (III).
Claim 4
Dependent Claim
17 words
The support of claim 1, wherein said copolymer consists essentially of said monomers (I), (II) and (IV).
Claim 5
Dependent Claim
18 words
The support of claim 1, wherein said copolymer consists essentially of said monomers (I), (II), (III) and (IV).
Claim 6
Dependent Claim
42 words
The support of claim 1, wherein said monomer (III) is present in an amount of 5 to 45% by weight and said monomer (IV) is present in an amount of 5 to 50% by weight based on the weight of said copolymer.
Claim 7
Dependent Claim
70 words
The support of claim 1, wherein said monomer (I) is present in an amount of 10 to 35% by weight, said monomer (II) is present in an amount of 15 to 40% by weight, said monomer (III) is present in an amount of 10 to 30% by weight and said monomer (IV) is present in an amount of 10 to 30% by weight based on the weight of said copolymer.
Claim 8
Dependent Claim
27 words
The support of claim 2 wherein said monomer (I) is present in an amount of 10 to 35% by weight based on the weight of said copolymer.
Claim 9
Dependent Claim
27 words
The support of claim 7, wherein said monomer (III) is present in an amount of 10 to 30% by weight based on the weight of said copolymer.
Claim 10
Dependent Claim
27 words
The support of claim 3, wherein said monomer (I) is present in an amount of 10 to 35% by weight based on the weight of said copolymer.
Claim 11
Dependent Claim
27 words
The support of claim 9, wherein said monomer (IV) is present in an amount of 10 to 30% by weight based on the weight of said copolymer.
References Cited (Backward Citations)
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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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |