US4389455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic resin coated paper
Assignee: Fujifilm Holdings Corp
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Filing: 1981-08-21
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Granted: 1983-06-21
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Expires: 2001-08-21
Abstract
Abstract A photographic resin coated paper having improved resolving power of print images is disclosed. The paper is comprised of a base paper sheet having coated thereon polyolefin resin containing particles of titanium oxide pigment. The surface of the pigment particles are coated with a polyhydric alcohol containing from 2 to 4 hydroxyl groups. The polyolefin resin is coated on the paper by extrusion coating.
Inventors
- 👤 Yasuzi Asao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:07
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
56 words
A photographic printing paper, comprising: a base paper sheet; and a coating on said base paper sheet, wherein said coating is comprised of a polyolefin resin containing particles of titanium oxide pigment wherein surfaces of said particles are coated with a polyhydric alcohol selected from the group consisting of dihydric alcohols, trihydric alcohols, or tetrahydric alcohols.
Claim 2
Dependent Claim
56 words
A photographic printing paper, comprising: a base paper sheet; and a coating on said base paper sheet, wherein said coating is comprised of a polyolefin resin containing particles of titanium oxide pigment wherein surfaces of said particles are coated with a polyhydric alcohol selected from the group consisting of dihydric alcohols, trihydric alcohols, or tetrahydric alcohols.
Claim 3
Dependent Claim
23 words
A photographic printing paper as claimed in claim 1, wherein said polyhydric alcohols contain from 2 to 18 carbon atoms in a molecule.
Claim 4
Dependent Claim
29 words
A photographic paper as claimed in claim 1, wherein said polyhydric alcohols contain from 2 to 4 methylol groups and from 2 to 6 carbon atoms in a molecule.
Claim 5
Dependent Claim
26 words
A photographic paper as claimed in claim 1, wherein said polyhydric alcohols contain 3 methylol groups and from 4 to 5 carbon atoms in a molecule.
Claim 6
Dependent Claim
38 words
A photographic paper as claimed in any of claim 1, 2, 3 or 4, wherein said polyhydric alcohol is contained in an amount of 0.01 to 10% by weight based on the weight of said titanium oxide pigment.
Claim 7
Dependent Claim
37 words
A photographic paper as claimed in any of claim 1, 2, 3 or 4 wherein said polyhydric alcohol is contained in an amount of 0.1 to 1.5% by weight based on the weight of said polyolefin resin.
Claim 8
Dependent Claim
37 words
A photographic paper as claimed in any of claim 1, 2, 3 or 4, wherein said titanium oxide is contained in an amount of 1 to 40% by weight based on the weight of said polyolefin resin.
Claim 9
Dependent Claim
35 words
A photographic paper as claimed in claim 1, 2, 3 or 4, wherein said titanium oxide is contained in an amount of 5 to 20% by weight based on the weight of said polyolefin resin.
Claim 10
Dependent Claim
19 words
A photographic paper as claimed in claim 8, wherein said coating has a thickness of about 5 to 200μ.
References Cited (Backward Citations)
US4188220A
Cited
US4145480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |