US2883355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous pigmented dispersion containing a butadiene-methyl methacrylate copolymer
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1954-10-04
•
Granted: 1959-04-21
•
Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Balfe Bernard James
- 👤 Edgerley Peter George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:13
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C09D133/12; C08; C08L; C08L89/00; C08L89/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PIGMENTED DISPERSION HAVING A CONTINUOUS AQUEOUS PHASE, AT LEAST ONE DISPERSED PIGMENT AND A DISPERSED COPOLYMER OF BUTADIENE-1,3 AND METHYL METHACRYLATE THE WEIGHT OF COPOLYMERISED METHYL METHACRYLATE UNITS IN THE COPOLYMER BEING FROM 60 TO 70% BY WEIGHT OF THE COPOLYMER AND THE RATIO OF COPOLYMERIC MATERIAL TO PIGMENT BEING FROM 1.0 PARTS TO 4.0 PARTS BY VOLUME OF COPOLYMER TO EACH PART BY VOLUME OF PIGMENT INCLUDING ANY PIGMENT EXTENDER.
Claim 2
Dependent Claim
72 words
A PIGMENTED DISPERSION HAVING A CONTINUOUS AQUEOUS PHASE, AT LEAST ONE DISPERSED PIGMENT AND A DISPERSED COPOLYMER OF BUTADIENE-1,3 AND METHYL METHACRYLATE THE WEIGHT OF COPOLYMERISED METHYL METHACRYLATE UNITS IN THE COPOLYMER BEING FROM 60 TO 70% BY WEIGHT OF THE COPOLYMER AND THE RATIO OF COPOLYMERIC MATERIAL TO PIGMENT BEING FROM 1.0 PARTS TO 4.0 PARTS BY VOLUME OF COPOLYMER TO EACH PART BY VOLUME OF PIGMENT INCLUDING ANY PIGMENT EXTENDER.
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |