US4476153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of photographic resin-coated paper
Assignee: Fujifilm Holdings Corp
•
Filing: 1982-09-17
•
Granted: 1984-10-09
•
Expires: 2002-09-17
Abstract
Abstract A process for the preparation of a photographic resin-coated paper which comprises subjecting a paper sheet to corona discharge treatment or flame treatment, and then coating the so treated paper sheet with polyolefin resin containing titanium dioxide powder coated with an alcohol having 2-18 carbon atoms and 2-4 hydroxyl groups.
Inventors
- 👤 Masataka Kiritani
- 👤 Yasuzi Asao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:50
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
48 words
A process for the preparation of a photographic resin-coated paper which comprises subjecting paper sheet to corona discharge treatment and then coating the so treated paper sheet with polyolefin resin containing titanium dioxide powder coated with an alcohol selected from the group consisting of trimethylolethane, trimethylolpropane and 2,4-dihydroxy-2-methylpentane.
Claim 2
Dependent Claim
48 words
A process for the preparation of a photographic resin-coated paper which comprises subjecting paper sheet to corona discharge treatment and then coating the so treated paper sheet with polyolefin resin containing titanium dioxide powder coated with an alcohol selected from the group consisting of trimethylolethane, trimethylolpropane and 2,4-dihydroxy-2-methylpentane.
Claim 3
Dependent Claim
35 words
The process as claimed in claim 1, in which the alcohol is coated over the titanium dioxide powder in the amount of about 0.01 to about 10 percent by weight of the titanium dioxide powder.
Claim 4
Dependent Claim
35 words
The process as claimed in claim 1, in which the alcohol is coated over the titanium dioxide powder in the amount of about 0.1 to about 1.5 percent by weight of the titanium dioxide powder.
Claim 5
Dependent Claim
25 words
The process as claimed in claim 1, in which the titanium dioxide powder is coated with inorganic material in advance of coating with the alcohol.
Claim 6
Dependent Claim
16 words
The process as claimed in claim 4, in which the inorganic material is silica or alumina.
Claim 7
Dependent Claim
15 words
The process as claimed in claim 1, in which the polyolefin resin is polyethylene resin.
References Cited (Backward Citations)
US3502298A
Cited
US3640788A
Cited
US3411908A
Cited
JPS49107381A
Cited
US4188220A
Cited
DE2515823A1
Cited
DE2734090A1
Cited
JPS55113039A
Cited
JPS55113040A
Cited
US4352861A
Cited
US4389455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |