US4547405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink jet transparency
Assignee: Polaroid Corp
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Filing: 1984-12-13
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Granted: 1985-10-15
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Expires: 2004-12-13
Abstract
Abstract An ink jet recording sheet comprising a transparent support carrying a layer comprising 5-100% by weight of a coalesced block copolymer latex of polyvinyl alcohol with polyvinyl (benzyl ammonium chloride) and 0-95% by weight of a water-soluble polymer selected from the group consisting of polyvinyl alcohol, polyvinyl pyrrolidone and copolymers thereof.
Inventors
- 👤 Stanley F. Bedell
- 👤 Michael S. Viola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/502; B41M5/508; B41M5/5245; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/252; Y10T428/259; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
49 words
An ink jet recording sheet comprising a transparent support carrying a layer comprising 5-100% of a coalesced block copolymer latex of polyvinyl alcohol and polyvinyl (benzyl ammonium chloride) and 0-95% by weight of a water-soluble polymer selected from the group consisting of polyvinyl alcohol, and polyvinylpyrrolidone and copolymers thereof.
Claim 2
Dependent Claim
49 words
An ink jet recording sheet comprising a transparent support carrying a layer comprising 5-100% of a coalesced block copolymer latex of polyvinyl alcohol and polyvinyl (benzyl ammonium chloride) and 0-95% by weight of a water-soluble polymer selected from the group consisting of polyvinyl alcohol, and polyvinylpyrrolidone and copolymers thereof.
Claim 3
Dependent Claim
19 words
The product of claim 1 wherein said layer comprises 75% of said block copolymer and 25% of polyvinyl alcohol.
Claim 4
Dependent Claim
17 words
The product of claim 1 wherein said polyvinyl (benzyl ammonium chloride) is polyvinyl (benzyl triethyl ammonium chloride).
Claim 5
Dependent Claim
17 words
The product of claim 1 wherein said polyvinyl (benzyl ammonium chloride) is polyvinyl (benzyl N-methyl imidazolium chloride).
Claim 6
Dependent Claim
15 words
The product of claim 1 wherein said polyvinyl (benzyl ammonium chloride) is polyvinyl (benzyl-α-picolinium chloride).
Claim 7
Dependent Claim
17 words
The product of claim 1 wherein said polyvinyl (benzyl ammonium chloride) is polyvinyl (benzyl N-methyl morpholinium chloride).
Claim 8
Dependent Claim
17 words
The product of claim 1 wherein said polyvinyl (benzyl ammonium chloride) is polyvinyl (benzyl tributyl ammonium chloride).
Claim 9
Dependent Claim
23 words
The product of claim 1 wherein said layer includes up to 0.3% by weight of particulate material less than 25 micrometers in size.
Claim 10
Dependent Claim
11 words
The product of claim 8 wherein said particulate material is silica.
Claim 11
Dependent Claim
12 words
The product of claim 8 wherein said particulate material is glass beads.
Claim 12
Dependent Claim
11 words
The product of claim 1 wherein said support is polyethylene terephthalate.
Claim 13
Independent Claim
72 words
The method of ink jet printing which comprises contacting a recording sheet with at least one stream of droplets generated from an ink jet printer, wherein said recording sheet comprises a transparent support carrying a layer comprising 5-100% of a coalesced block copolymer latex of polyvinyl alcohol and polyvinyl (benzyl ammonium chloride) and 0-95% of a water-soluble polymer selected from the group consisting of polyvinyl alcohol and polyvinyl pyrrolidone and copolymers thereof.
Claim 14
Independent Claim
72 words
The method of ink jet printing which comprises contacting a recording sheet with at least one stream of droplets generated from an ink jet printer, wherein said recording sheet comprises a transparent support carrying a layer comprising 5-100% of a coalesced block copolymer latex of polyvinyl alcohol and polyvinyl (benzyl ammonium chloride) and 0-95% of a water-soluble polymer selected from the group consisting of polyvinyl alcohol and polyvinyl pyrrolidone and copolymers thereof.
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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |