US4442200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of photographic resin-coated paper
Assignee: Fujifilm Holdings Corp
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Filing: 1982-07-16
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Granted: 1984-04-10
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Expires: 2002-07-16
Abstract
Abstract A process for the preparation of a photographic resin-coated paper which comprises coating paper sheet with polyolefin resin of melt index in the range of 1.0-40 g./10 min. containing titanium dioxide powder coated with an alcohol having 2-18 carbon atoms and 2-4 hydroxyl groups.
Inventors
- 👤 Yasuzi Asao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:48
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A process for the preparation of a photographic resin-coated paper which comprises coating a paper sheet with polyolefin resin of melt index in the range of 1.0-40 g./10 min. containing titanium dioxide powder coated with an alcohol having 2-18 carbon atoms and 3 methylol groups.
Claim 2
Dependent Claim
45 words
A process for the preparation of a photographic resin-coated paper which comprises coating a paper sheet with polyolefin resin of melt index in the range of 1.0-40 g./10 min. containing titanium dioxide powder coated with an alcohol having 2-18 carbon atoms and 3 methylol groups.
Claim 3
Dependent Claim
22 words
The process as claimed in claim 1, in which the melt index of polyolefin resin is in the range of 5.0-30 g./min.
Claim 4
Dependent Claim
15 words
The process as claimed in claim 1, in which the alcohol contains 2-6 carbon atoms.
Claim 5
Dependent Claim
15 words
The process as claimed in claim 1, in which the alcohol contains 4-5 carbon atoms.
Claim 6
Dependent Claim
13 words
The process as claimed in claim 1, in which the alcohol is trimethylolethane.
Claim 7
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 8
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 9
Dependent Claim
15 words
The process as claimed in claim 1, in which the polyolefin resin is polyethylene resin.
Claim 10
Independent Claim
81 words
A method for suppressing occurrence of die lip scoreline on polyolefin resin film extruded from die onto paper sheet in a process for the preparation of a photographic resin-coated paper comprising coating the paper sheet with the polyolefin resin containing titanium dioxide powder through extrusion coating procedure, which comprises employment of the titanium dioxide powder coated with an alcohol having 2-8 carbon atoms and 3 methylol groups and the polyolefin resin of melt index in the range of 1.0-40 g./10 min.
Claim 11
Independent Claim
81 words
A method for suppressing occurrence of die lip scoreline on polyolefin resin film extruded from die onto paper sheet in a process for the preparation of a photographic resin-coated paper comprising coating the paper sheet with the polyolefin resin containing titanium dioxide powder through extrusion coating procedure, which comprises employment of the titanium dioxide powder coated with an alcohol having 2-8 carbon atoms and 3 methylol groups and the polyolefin resin of melt index in the range of 1.0-40 g./10 min.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |