US3224993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium dioxide pigment coated with polyvinyl alcohol
Assignee: British Titan Products Co Ltd
•
Filing: 1962-03-26
•
Granted: 1965-12-21
•
Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Wynne Reginald George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:40
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/3607; C09C1/3676; C08; C08K; C08K9/00; C08K9/08; C08L; C08L57/00; C01; C01P; C01P2004/00; C01P2004/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A LOW VISCOSITY, PIGMENTED SURFACE COATING COMPOSITION HAVING REDUCED TENDENCY TO FLOCCULATE COMPRISING AN AQUEOUS EMULSION OF AT LEAST ONE FILM-FORMING KPOLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS AND COPOLYMERS OF VINYL ACETATE, STYRENE, BUTADIENE, ACRYLIC ACID AND SUBSTITUTED ACRYLIC ACID IN WHICH THERE IS INCORPORATED PIGMENTARY TITANIUM DIOXIDE PARTICLES COATED WITH A NORMALLY SOLID POLYVINYL ALCOHOL POLYMER.
Claim 2
Dependent Claim
59 words
A LOW VISCOSITY, PIGMENTED SURFACE COATING COMPOSITION HAVING REDUCED TENDENCY TO FLOCCULATE COMPRISING AN AQUEOUS EMULSION OF AT LEAST ONE FILM-FORMING KPOLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS AND COPOLYMERS OF VINYL ACETATE, STYRENE, BUTADIENE, ACRYLIC ACID AND SUBSTITUTED ACRYLIC ACID IN WHICH THERE IS INCORPORATED PIGMENTARY TITANIUM DIOXIDE PARTICLES COATED WITH A NORMALLY SOLID POLYVINYL ALCOHOL POLYMER.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |