US4801509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic resin coated paper
Assignee: Mitsubishi Paper Mills Ltd
•
Filing: 1986-07-03
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Granted: 1989-01-31
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Expires: 2006-07-03
Abstract
Abstract Disclosed is a photographic resin coated paper which is excellent in surface quality. This photographic resin coated paper comprises a paper or synthetic paper substrate having on at least one surface a layer of resin composition comprising a reisn and a titanium dioxide pigment which is prepared by the external seed method and milled by a fluid energy mill. The titanium dioxide pigment is preferably surface treated with an inorganic surface treating agent such as hydrous aluminum oxide. The resin is preferably a thermoplastic resin such as a polyolefin resin.
Inventors
- 👤 Akira Uno
- 👤 Touru Noda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; D21H19/44; D21H19/56; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
63 words
A photographic resin coated paper which comprises a paper or synthetic paper substrate at least one surface of which is coated with a resin composition comprising at least a titanium dioxide pigment and a resin, said titanium dioxide pigment being prepared by the external seed method, milled by a fluid energy mill and subjected to surface treatment with an inorganic surface treating agent.
Claim 2
Dependent Claim
63 words
A photographic resin coated paper which comprises a paper or synthetic paper substrate at least one surface of which is coated with a resin composition comprising at least a titanium dioxide pigment and a resin, said titanium dioxide pigment being prepared by the external seed method, milled by a fluid energy mill and subjected to surface treatment with an inorganic surface treating agent.
Claim 3
Dependent Claim
17 words
A resin coated paper according to claim 1 wherein the fluid energy mill is a steam mill.
Claim 4
Dependent Claim
18 words
A resin coated paper according to claim 2 wherein the inorganic surface treating agent is hydrous aluminum oxide.
Claim 5
Dependent Claim
30 words
A resin coated paper according to claim 2 wherein the inorganic surface treating agent comprises hydrous aluminum oxide and an inorganic surface treating agent other than the hydrous aluminum oxide.
Claim 6
Dependent Claim
28 words
A resin coated paper according to claim 2 wherein amount of the inorganic surface treating agent is 0.2-1.2% by weight (in terms of anhydride) of the titanium dioxide.
Claim 7
Dependent Claim
29 words
A resin coated paper according to claim 5 wherein the amount of the inorganic surface treating agent is 0.2-0.6% by weight (in terms of anhydride) of the titanium dioxide.
Claim 8
Dependent Claim
31 words
A resin coated paper according to claim 3 wherein amount of the hydrous aluminum oxide is 0.2-1.2% by weight (in terms of Al 2 O 3 ) of the titanium dioxide.
Claim 9
Dependent Claim
31 words
A resin coated paper according to claim 4 wherein amount of the hydrous aluminum oxide is 0.2-1.2% by weight (in terms of Al 2 O 3 ) of the titanium dioxide.
Claim 10
Dependent Claim
32 words
A resin coated paper according to claim 7 wherein the amount of the hydrous aluminum oxide is 0.2-0.6% by weight (in terms of Al 2 O 3 ) of the titanium dioxide.
Claim 11
Dependent Claim
32 words
A resin coated paper according to claim 8 wherein the amount of the hydrous aluminum oxide is 0.2-0.6% by weight (in terms of Al 2 O 3 ) of the titanium dioxide.
Claim 12
Dependent Claim
15 words
A resin coated paper according to claim 1 wherein the resin is a thermoplastic resin.
Claim 13
Dependent Claim
16 words
A resin coated paper according to claim 11 wherein the thermoplastic resin is a polyolefin resin.
Claim 14
Dependent Claim
16 words
A resin coated paper according to claim 12 wherein the polyolefin resin is a polyethylene resin.
Claim 15
Dependent Claim
28 words
A resin coated paper according to claim 1 wherein the amount of the titanium dioxide pigment contained in the resin layer is 5-40% by weight of the resin.
Claim 16
Dependent Claim
25 words
A resin coated paper according to claim 1 wherein the resin layer containing the titanium dioxide pigment contains a metallic salt of a fatty acid.
Claim 17
Dependent Claim
29 words
A resin coated paper according to claim 15 wherein the content of the metallic salt of a fatty acid is 0.01-5% by weight the resin composition containing titanium dioxide.
References Cited (Backward Citations)
JPS5687630A
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US4447524A
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JPS57120140A
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US4442200A
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US4389455A
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US4572893A
Cited
JPS59121329A
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GB2138964A
Cited
US4650747A
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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) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |