Patent US3620366A successfully refreshed from Google Patents.
US3620366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wallpaper
Assignee: Scott Bader Co Ltd
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Filing: 1969-12-18
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Granted: 1971-11-16
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Expires: 1989-12-18
Abstract
Abstract This invention provides a wallpaper having a decorative surface and coated on the back surface thereof with a coating of a permanently tacky pressure sensitive adhesive, the decorative surface being coated with a protective coating of a synthetic resin. The pressure-sensitive adhesive coating and the synthetic resin are so chosen that the protective coating of the synthetic resin on the decorative surface acts as a release coat for the adhesive.
Inventors
- 👤 Norman Parkinson
- 👤 Christine Mary Blakely
- 👤 Robert Francis Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/20; C; C09; C09J; C09J7/00; C09J7/20; C09J7/201; C09J7/21; C09J7/30; C09J7/38; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2425/00; C09J2425/005; C09J2433/00; C09J2433/005; C09J2483/00; C09J2483/005; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A roll of wallpaper according to claim 1, in which said synthetic resin material comprises the residue obtained by drying an emulsion of copolymers of vinylidene chloride and one or more acrylic esters, copolymers of styrene and one or more acrylic esters, plasticized polyvinyl acetate, vinyl acetate copolymers, acrylic ester polymers, acrylic ester copolymers, copolymers of styrene and butadiene, copolymers of styrene and acrylonitrile, or copolymers of styrene and methyl methacrylate.
Claim 2
Dependent Claim
43 words
A roll of wallpaper according to claim 1, in which said protective and release layer comprises a synthetic polymer or copolymer having a minimum film-forming temperature below about 20* C. in admixture with a release agent of natural waxes, synthetic waxes or silicones.
Claim 3
Dependent Claim
41 words
A roll of wallpaper according to claim 3, in which said protective and release layer comprises a copolymer of about 50 percent by weight of styrene and about 50 percent by weight of butyL acrylate in admixture with a silicone material.
Claim 4
Dependent Claim
96 words
A roll of wallpaper according to claim 1, in which said protective layer comprises a copolymer of between about 60 percent and about 75 percent by weight of vinylidene chloride and between about 40 percent and about 25 percent by weight of ethyl acrylate, and in which said permanently tacky pressure-sensitive adhesive comprises a copolymer of 2-ethylhexyl acrylate and methyl methacrylate containing at least 80 percent by weight of 2-ethyl hexyl acrylate, the weight of said adhesive on said opposite surface lying in the range of from about 14 to about 19 grams per square meter.
Claim 5
Dependent Claim
38 words
A roll of wallpaper according to claim 1, wherein said pressure-sensitive adhesive comprises the residue obtained by an emulsion of natural and synthetic rubbers, polyisobutylene, polyvinyl alkyl ethers, vinyl acetate copolymers, acrylic ester polymers or acrylic ester copolymers.
Claim 6
Dependent Claim
121 words
A roll of wallpaper according to claim 1, in which said protective coating comprises a first layer of a synthetic resin material on said paper substrate, said synthetic resin material being copolymers of vinylidene chloride and one or more acrylic esters, copolymers of styrene and one or more acrylic esters, plasticized polyvinyl acetate, vinyl acetate copolymers, acrylic ester polymers, acrylic ester copolymers, copolymers of styrene and butadiene, copolymers of styrene and acrylonitrile or copolymers of styrene and methyl methacrylate, and a second layer on said first layer of a release agent of natural waxes, synthetic waxes or silicones, the coating weight of said release agent lying in the range of between about 1 gram and about 5 grams per square meter.
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |