Patent US4772512A successfully refreshed from Google Patents.
US4772512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite film for bar code labels
Assignee: Kiso Chemical Co Ltd
•
Filing: 1987-02-12
•
Granted: 1988-09-20
•
Expires: 2007-02-12
Abstract
Abstract A composite film for bar code labels comprising first and second heat-resisting non-water-absorbing synthetic resin films. On the first film of the composite film bar code can be reproduced by means of a high speed dry process electrostatic copier.
Inventors
- 👤 Kazumasa Nagafuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:47
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/28; B32B27/281; B32B27/34; B32B27/36; B32B27/365; G; G09; G09F; G09F3/00; G09F3/02; G09F3/0297; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/70; B32B2307/726; B32B2317/00; B32B2317/18; B32B2367/00; B32B2369/00; B32B2377/00; B32B2379/00; B32B2379/08; B32B2519/00; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1462; Y10T428/25; Y10T428/259; Y10T428/28; Y10T428/2835; Y10T428/2839
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A composite film for bar code labels comprising a first heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a synthetic resin paint coating the front surface of the first film, the paint being easily adhered to by toner, fine particles of silica fixed on the front surface of the first film, a heat-resistant adhesive coating the back surface of the first film, a second heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a release agent coating the front surface of the second film and contacting the heat-resistant adhesive releasably adhering the first film to the second film, and an antistatic agent coating the back surface of the second film, and fine particles of silica fixed on the back surface of the second film.
Claim 2
Dependent Claim
133 words
A composite film for bar code labels comprising a first heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a synthetic resin paint coating the front surface of the first film, the paint being easily adhered to by toner, fine particles of silica fixed on the front surface of the first film, a heat-resistant adhesive coating the back surface of the first film, a second heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a release agent coating the front surface of the second film and contacting the heat-resistant adhesive releasably adhering the first film to the second film, and an antistatic agent coating the back surface of the second film, and fine particles of silica fixed on the back surface of the second film.
Claim 3
Dependent Claim
29 words
The composite film for bar code labels of claim 1, the first and second synthetic resin films being polyester film, polyimido film, polycarbonate film, cellulose-ester film, or polyamide film.
Claim 4
Dependent Claim
40 words
The composite film for bar code lables of claim 1, the synthetic resin paint being polyolefine resin paint or polyacrylic acid resin paint which has been dissolved in an organic solvent, the organic solvent being alcohol, ketones, or chloronized hydrocarbons.
Claim 5
Dependent Claim
17 words
The composite film for bar code labels of claim 1, the heat-resistant adhesive being an acrylic resin.
Claim 6
Dependent Claim
17 words
The composite film for bar code labels of claim 1, the release agent being a silicone resin.
Claim 7
Dependent Claim
30 words
The composite film for bar code labels of claim 1, the antistatic agent being an anionic surface agent, a cationic surface agent, an amphoteric surface agent or nonionic surface agent.
Claim 8
Dependent Claim
22 words
The composite film for bar code labels of claim 1, the fine particles of silica being 0.007 to 0.016 microns in size.
Claim 9
Dependent Claim
229 words
A composite film for bar code labels comprising a first heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a synthetic resin paint coating the front surface of the first film, the paint being easily adhered to by toner, fine particles of silica fixed on the front surface of the first film, a heat-resistant adhesive coating the back surface of the first film, a second heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a release agent coating the front surface of the second film and contacting the heat-resistant adhesive releasably adhering the first film to the second film, and an antistatic agent coating the back surface of the second film, and fine particles of silica fixed on the back surface of the second film, the first and second synthetic resin films being polyester film, polyimido film, polycarbonate film, cellulose-ester film, or polyamide film, the synthetic resin paint being polyolefine resin paint or polyacrylic acid resin paint which has been dissolved in an organic solvent, the organic solvent being alcohol, ketones, or chloronized hydrocarbons, the heat-resistant adhesive being an acrylic resin, the release agent being a silicone resin, the antistatic agent being an anionic surface agent, a cationic surface agent, an amphoteric surface agent or nonionic surface agent, and the fine particles of silica being 0.007 to 0.016 microns in size.
Claim 10
Dependent Claim
229 words
A composite film for bar code labels comprising a first heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a synthetic resin paint coating the front surface of the first film, the paint being easily adhered to by toner, fine particles of silica fixed on the front surface of the first film, a heat-resistant adhesive coating the back surface of the first film, a second heat-resistant non-water-absorbing synthetic resin film having a front surface and a back surface, a release agent coating the front surface of the second film and contacting the heat-resistant adhesive releasably adhering the first film to the second film, and an antistatic agent coating the back surface of the second film, and fine particles of silica fixed on the back surface of the second film, the first and second synthetic resin films being polyester film, polyimido film, polycarbonate film, cellulose-ester film, or polyamide film, the synthetic resin paint being polyolefine resin paint or polyacrylic acid resin paint which has been dissolved in an organic solvent, the organic solvent being alcohol, ketones, or chloronized hydrocarbons, the heat-resistant adhesive being an acrylic resin, the release agent being a silicone resin, the antistatic agent being an anionic surface agent, a cationic surface agent, an amphoteric surface agent or nonionic surface agent, and the fine particles of silica being 0.007 to 0.016 microns in size.
References Cited (Backward Citations)
US3519525A
Cited
DE1930517A1
Cited
US4074000A
Cited
US4428134A
Cited
US4517044A
Cited
US4526405A
Cited
US4585254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |