US3793244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-retaining latexes of styrene-butadiene-itaconic acid terpolymers
Assignee: Individual
•
Filing: 1972-08-17
•
Granted: 1974-02-19
•
Expires: 1992-08-17
Abstract
Abstract 1. A LATEX OF STYRENE-BUTADIENE-ITACONIC ACID IS MADE TO BE WATER-RETAINING BY INTERPOLYMERIZING WHILE SUPPLYING ALL THE BUTADIENE GRADUALLY TO AN AQUEOUS PHASE CONTAINING ALL THE STYRENE AND ITACONIC ACID FROM THE START, IN THE PRESENCE OF SURFACTANT IN AMOUNT OF AT LEAST 5%, BASED ON WEIGHT OF TOTAL TERPOLYMER. PIGMENTED PAPER-COATING SLIPS HAVE EXCELLLENT MACHINABILITY WHEN PREPARED WITH A BINDER CONSISTING ESSENTIALLY OF THIS LATEX.
Inventors
- 👤 J Megee
- 👤 R Nickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:31
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A LATEX OF STYRENE-BUTADIENE-ITACONIC ACID IS MADE TO BE WATER-RETAINING BY INTERPOLYMERIZING WHILE SUPPLYING ALL THE BUTADIENE GRADUALLY TO AN AQUEOUS PHASE CONTAINING ALL THE STYRENE AND ITACONIC ACID FROM THE START, IN THE PRESENCE OF SURFACTANT IN AMOUNT OF AT LEAST 5%, BASED ON WEIGHT OF TOTAL TERPOLYMER. PIGMENTED PAPER-COATING SLIPS HAVE EXCELLLENT MACHINABILITY WHEN PREPARED WITH A BINDER CONSISTING ESSENTIALLY OF THIS LATEX.
Claim 2
Dependent Claim
65 words
A LATEX OF STYRENE-BUTADIENE-ITACONIC ACID IS MADE TO BE WATER-RETAINING BY INTERPOLYMERIZING WHILE SUPPLYING ALL THE BUTADIENE GRADUALLY TO AN AQUEOUS PHASE CONTAINING ALL THE STYRENE AND ITACONIC ACID FROM THE START, IN THE PRESENCE OF SURFACTANT IN AMOUNT OF AT LEAST 5%, BASED ON WEIGHT OF TOTAL TERPOLYMER. PIGMENTED PAPER-COATING SLIPS HAVE EXCELLLENT MACHINABILITY WHEN PREPARED WITH A BINDER CONSISTING ESSENTIALLY OF THIS LATEX.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |