Patent US4966804A successfully refreshed from Google Patents.
US4966804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed material imparted with improved water-proofness
Assignee: Shin-Etsu Polymer Co Ltd
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Filing: 1988-11-03
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Granted: 1990-10-30
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Expires: 2008-11-03
Abstract
Abstract The invention provides a means to prepare a highly water-resistant printed material by the ink-jet printing method despite the water-solubility of the dye in the aqueous ink used in the ink-jet printing method. The inventive method comprises: overcoating the surface of the sheet material, which has a water-absorptive surface layer with receptivity of the aqueous ink and printed by the ink-jet printing method, with a curable polyisocyanate compound and bringing the overcoating layer under a condition capable of curing the polyisocyanate compound.
Inventors
- 👤 Masamitsu Hasegawa
- 👤 Satoshi Tamura
- 👤 Isao Sugiyama
- 👤 Takashi Wakashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:52
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M7/00; B41M7/0027; B41M5/5218; B41M7/009; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/25; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31551
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A water-resistant printed material which comprises: (a) a base sheet material of which at least the surface layer has no or little capacity for absorption of water; (b) a coating layer on one of the surfaces of the base sheet material made from a coating composition comprising a water-absorptive resinous polymer; (c) a water-soluble coloring material deposited in dots to form a patterned image in the coating layer of the base sheet material, the dots of the water-soluble coloring material being formed by the ink-jet printing method using an aqueous ink containing the water-soluble coloring material; and (d) an overcoating layer made from a cured polyisocyanate compound.
Claim 2
Dependent Claim
107 words
A water-resistant printed material which comprises: (a) a base sheet material of which at least the surface layer has no or little capacity for absorption of water; (b) a coating layer on one of the surfaces of the base sheet material made from a coating composition comprising a water-absorptive resinous polymer; (c) a water-soluble coloring material deposited in dots to form a patterned image in the coating layer of the base sheet material, the dots of the water-soluble coloring material being formed by the ink-jet printing method using an aqueous ink containing the water-soluble coloring material; and (d) an overcoating layer made from a cured polyisocyanate compound.
Claim 3
Dependent Claim
26 words
The water-resistant printed material as claimed in claim 1 in which the coating composition comprising a highly water-absorptive resinous polymer further comprises an inorganic porous powder.
Claim 4
Dependent Claim
28 words
The water-resistant printed material as claimed in claim 1 in which the overcoating layer has a coating amount in the range from 5 to 40 g/m 2 .
Claim 5
Dependent Claim
32 words
The water-resistant printed material as claimed in claim 1 which further comprises an overlay sheet of a plastic resin bonded to the surface of the overcoating layer of a cured polyisocyanate compound.
Claim 6
Dependent Claim
29 words
The water-resistant printed material as claimed in claim 4 in which the overlay sheet is bonded to the overcoating layer of a cured polyisocyanate compound which a pressure-sensitive adhesive.
Claim 7
Dependent Claim
30 words
The water-resistant printed material as claimed in claim 4 in which the overlay sheet is bonded to the overcoating layer of a cured polyisocyanate compound by thermal adhesion under pressure.
Claim 8
Dependent Claim
26 words
The water-resistant printed material as claimed in claim 1 in which the water-absorptive resinous polymer is a poly(acrylic acid) in the form of a sodium salt.
Claim 9
Dependent Claim
20 words
The water-resistant printed material as claimed in claim 1 in which the polyisocyanate compound is hexamethylene diisocyanate or xylylene diisocyanate.
References Cited (Backward Citations)
US4522881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |