US3764587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic interpolymers for flexographic inks
Assignee: EIDP Inc
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Filing: 1971-04-02
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Granted: 1973-10-09
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Expires: 1991-04-02
Abstract
Abstract Acrylic interpolymers consisting essentially of, by weight, about 25 to 95 percent ethyl methacrylate, about 5 to 75 percent acrylic monomer selected from the group consisting of n-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl methacrylate and 2ethylhexyl acrylate, and about 0.5 to 10 percent ethylenically unsaturated acid selected from the group consisting of acrylic acid, methacrylic acid and itaconic acid, and having an inherent viscosity of about 0.2 to 0.35 are useful as improved binders for flexographic inks.
Inventors
- 👤 D Zunker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; C09D11/107; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1802; Y; Y10; Y10S; Y10S526/00; Y10S526/933
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
13 words
The composition of claim 1 in which the acrylic monomer is n-butyl methacrylate.
Claim 2
Dependent Claim
14 words
Th composition of claim 2 in which the ethylenically unsaturated acid is acrylic acid.
Claim 3
Dependent Claim
14 words
The composition of claim 3 in which the inherent viscosity is 0.22 to 0.3.
Claim 4
Dependent Claim
29 words
The composition of claim 1 which consists essentially of 45 to 75 percent ethyl methacrylate, 25 to 55 percent acrylic monomer and 1 to 5 percent ethylenically unsaturated acid.
Claim 5
Dependent Claim
13 words
The composition of claim 5 in which the acrylic monomer is n-butyl methacrylate.
Claim 6
Dependent Claim
14 words
The composition of claim 6 in which the ethylenically unsaturated acid is acrylic acid.
Claim 7
Dependent Claim
14 words
The composition of claim 7 in which the inherent viscosity is 0.22 to 0.3.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |