Patent US5387501A successfully refreshed from Google Patents.
US5387501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for photographic material
Assignee: Konica Minolta Inc
•
Filing: 1994-04-07
•
Granted: 1995-02-07
•
Expires: 2014-04-07
Abstract
Abstract Disclosed is a support for a photographic material which comprises a multilayer film in which a layer of a copolymerized polyester is laminated on at least one surface of a polyester layer, wherein the copolymerized polyester contains an aromatic dicarboxylic acid having a metal sulfonate group as a copolymer component in an amount of 2 to 7 mole % based on all ester bond units and further a polyalkylene glycol as a copolymer component in an amount of 3 to 10% by weight based on the total weight of a polyester which is a reaction product.
Inventors
- 👤 Takatoshi Yajima
- 👤 Kenji Nakanishi
- 👤 Hiromitsu Araki
- 👤 Hideyuki Kobayashi
- 👤 Yoshioki Okubo
- 👤 Tetsutaro Hashimura
- 👤 Hiroshi Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:32
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/36; G; G03; G03C; G03C1/00; G03C1/76; G03C1/795; G03C1/7954; B32B2250/00; B32B2250/24; B32B2250/244; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/518; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; G03C7/00; G03C7/30; G03C7/3022; G03C2007/3027; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31794; Y10T428/31797
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
269 words
A support for a photographic material which comprises a multilayer film in which a layer of a copolymerized polyester is laminated on at least one surface of a polyester layer, wherein said polyester is obtained by reacting a first aromatic dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and 2,6-naphthalenedicarboxylic acid, with a glycol selected from the group consisting of ethylene glycol, propylene glycol, butanediol, neopentyl glycol, 1,4-cyclohexanedimethanol, diethylene glycol and p-xylene glycol, wherein said copolymerized polyester comprises: a) said first aromatic dicarboxylic acid, b) said glycol, c) a second aromatic dicarboxylic acid selected from the group consisting of terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic, ##STR4## wherein X represents ##STR5## R and R 1 each represent --CH 2 ) n -- where n represents an integer of 1 to 20; M represents sodium, potassium or lithium, wherein said terephthalic acid, said isophthalic acid or said 2,6-naphthalenedicarboxylic acid has a metal sulfonate group, and an amount of said second aromatic dicarboxylic acid is 2 to 7 mole % based on all ester bond units of said copolymerized polyester, and further d) a polyalkylene glycol selected from the group consisting of a polyethylene glycol, a polypropylene glycol and a polytetramethylene glycol, in an amount of 3 to 10% by weight based on the total weight of said copolymerized polyester, wherein each of said first and second aromatic dibasic acids, said glycol, said polyethylene glycol and said polytetramethylene glycol may have a substituent, wherein a ratio of the total copolymerized polyester layer thickness d 2 to the total polyester layer thickness d 1 is 0.7≦d 2 /d 1 ≦3.
Claim 2
Dependent Claim
269 words
A support for a photographic material which comprises a multilayer film in which a layer of a copolymerized polyester is laminated on at least one surface of a polyester layer, wherein said polyester is obtained by reacting a first aromatic dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and 2,6-naphthalenedicarboxylic acid, with a glycol selected from the group consisting of ethylene glycol, propylene glycol, butanediol, neopentyl glycol, 1,4-cyclohexanedimethanol, diethylene glycol and p-xylene glycol, wherein said copolymerized polyester comprises: a) said first aromatic dicarboxylic acid, b) said glycol, c) a second aromatic dicarboxylic acid selected from the group consisting of terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic, ##STR4## wherein X represents ##STR5## R and R 1 each represent --CH 2 ) n -- where n represents an integer of 1 to 20; M represents sodium, potassium or lithium, wherein said terephthalic acid, said isophthalic acid or said 2,6-naphthalenedicarboxylic acid has a metal sulfonate group, and an amount of said second aromatic dicarboxylic acid is 2 to 7 mole % based on all ester bond units of said copolymerized polyester, and further d) a polyalkylene glycol selected from the group consisting of a polyethylene glycol, a polypropylene glycol and a polytetramethylene glycol, in an amount of 3 to 10% by weight based on the total weight of said copolymerized polyester, wherein each of said first and second aromatic dibasic acids, said glycol, said polyethylene glycol and said polytetramethylene glycol may have a substituent, wherein a ratio of the total copolymerized polyester layer thickness d 2 to the total polyester layer thickness d 1 is 0.7≦d 2 /d 1 ≦3.
Claim 3
Dependent Claim
43 words
The support of claim 1 wherein the ratio of the total copolymerized polyester layer thickness d 2 to the total polyester layer thickness d 1 is 1≦d 2 /d 1 ≦2, and the thickness of one polyester layer is 40 μm or less.
Claim 4
Dependent Claim
13 words
The support of claim 1 wherein the support comprises two or three layers.
Claim 5
Dependent Claim
28 words
The support of claim 1 wherein the support comprises three layers, and the inner layer is the polyester layer and the outer layers are the copolymerized polyester layers.
Claim 6
Dependent Claim
28 words
The support of claim 1 wherein the support comprises three layers, and the inner layer is the copolymerized polyester layer and the outer layers are the polyester layers.
Claim 7
Dependent Claim
46 words
The support of claim 1 wherein the aromatic dicarboxylic acid having a metal sulfonate group is 5-sodium sulfoisophthalic acid, 2-sodium sulfoisophthalic acid, 4-sodium sulfoisophthalic acid, 4-sodium sulfo-2,6-naphthalenedicarboxylic acid, an ester-forming derivative thereof or a compound in which each of these sodiums is substituted by another metal.
Claim 8
Dependent Claim
27 words
The support of claim 1 wherein the polyalkylene glycol is polyethylene glycol, polytetramethylene glycol or propylene glycol having a number average molecular weight of 300 to 20,000.
Claim 9
Dependent Claim
48 words
The support of claim 1 wherein a laminated film is stretched at a temperature range of glass transition temperature (Tg) to Tg+100° C. in biaxial directions at a stretching ratio of 2.5 to 6.0-fold, respectively, and then heatset at a temperature range of 150° C. to 240° C.
Claim 10
Dependent Claim
14 words
The support of claim 1 which has a thickness of 40 to 120 μm.
Claim 11
Dependent Claim
17 words
The support of claim 1 wherein said polyester is polyethylene terephthalate comprising terephthalic acid and ethylene glycol.
Claim 12
Dependent Claim
19 words
The support of claim 1 wherein said copolymerized polyester contains a copolymerized polyethylene terephthalate as a main constitutional component.
Claim 13
Dependent Claim
12 words
The support of claim 1 wherein the polyalkylene glycol is polyethylene glycol.
Claim 14
Dependent Claim
12 words
The support of claim 1 wherein the polyalkylene glycol is polypropylene glycol.
Claim 15
Dependent Claim
12 words
The support of claim 1 wherein the polyalkylene glycol is polytetramethylene glycol.
References Cited (Backward Citations)
US4304851A
Cited
US4307174A
Cited
US4828927A
Cited
EP0275801A1
Cited
US4883706A
Cited
US5071736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |