US4069188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of butadiene and carboxylated styrene
Assignee: Rhone Poulenc Industries SA
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Filing: 1976-03-12
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Granted: 1978-01-17
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Expires: 1996-03-12
Abstract
Abstract A coated substrate for photogravure printing in which the substrate is coated with an aqueous latex containing as an essential film forming component particles of a copolymer of butadiene and carboxylated styrene having a particle size within the range of 0.08-0.14 microns and consisting essentially of 41-45% by weight butadiene, 45-57% by weight styrene and 2-10% by weight of at least one unsaturated carboxylic ethylenic acid.
Inventors
- 👤 Pierre Canard
- 👤 Albert Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:04
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; B; B41; B41M; B41M1/00; B41M1/26; B41M1/36; C; C08; C08L; C08L13/00; C08L13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
An aqueous composition suitable for coating paper and cardboard for photogravure printing comprising an aqueous latex containing as the essential film-forming ingredient a copolymer of butadiene and carboxylated styrene, consisting essentially of 41 to 45% by weight of butadiene, 45 to 57% by weight of styrene and 2 to 10% by weight of at least one unsaturated carboxylic ethylenic acid, the particles of which have a diameter in the range of 0.08 to 0.14 micron.
Claim 2
Dependent Claim
75 words
An aqueous composition suitable for coating paper and cardboard for photogravure printing comprising an aqueous latex containing as the essential film-forming ingredient a copolymer of butadiene and carboxylated styrene, consisting essentially of 41 to 45% by weight of butadiene, 45 to 57% by weight of styrene and 2 to 10% by weight of at least one unsaturated carboxylic ethylenic acid, the particles of which have a diameter in the range of 0.08 to 0.14 micron.
Claim 3
Dependent Claim
23 words
A composition according to claim 1 in which the quantity of carboxylic acid in the copolymer is from 3 to 6% by weight.
Claim 4
Dependent Claim
27 words
A composition according to claim 1 in which the carboxylic acid is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid and fumaric acid.
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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |