US2702285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable copolymer latex and paint comprising same
Assignee: Bridgestone Firestone Inc
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Filing: 1954-08-19
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Granted: 1955-02-15
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Expires: 1974-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Bebb
- 👤 John H Musch
- 👤 James M Willis
- 👤 Verle A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A FREEZE STABLE WATER DISPERSION PAINT CONSISTING ESSENTIALLY OF A STABLE LATEX OF AN AQUEOUS EMULSION COPOLYMER OF 61 TO 73% BY WEIGHT OF STYRENE AND CORRESPONDINGLY 39 TO 27% 1,3-BUTADIENE OF A SOLUBLE SALT OF PRESENCE OF ABOUT 1.0 TO 2.0 PARTS OF A SOLUBLE SALT OF PERSULFURIC ACID AND 0.02 TO 2.5 PARTS INITIAL CHARGE OF AN ANIONIC EMULSIFYING AGENT, PER 100 PARTS BY WEIGHT OF MONOMERS, AT A PH IN THE RANGE OF 7.0 TO 12.0, AND WATER-DISPOSED PAINT PIGMENT ADMIXED WITH THE LATEX, SAID PAINT PIGMENT BEING WATER-DISPERSED BY A PIGMENT DISPERSING AGENT AND SAID DISPERSION PAINT CONTAINING A RELATIVELY SMALL QUANTITY OF MORE THAN ONE ADDITIONAL STABILIZING EMULSIFYING AGENT ADDED TO SAID LATEX AFTER 50% POLYMERIZATION CONVERSION AND BEFORE ADMIXING WITH SAID WATER-DISPERSED PAINT PIGMENT, THE ADDITIONAL EMULSIFYING AGENTS BEING SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC EMULSIFIERS.
Claim 2
Dependent Claim
145 words
A FREEZE STABLE WATER DISPERSION PAINT CONSISTING ESSENTIALLY OF A STABLE LATEX OF AN AQUEOUS EMULSION COPOLYMER OF 61 TO 73% BY WEIGHT OF STYRENE AND CORRESPONDINGLY 39 TO 27% 1,3-BUTADIENE OF A SOLUBLE SALT OF PRESENCE OF ABOUT 1.0 TO 2.0 PARTS OF A SOLUBLE SALT OF PERSULFURIC ACID AND 0.02 TO 2.5 PARTS INITIAL CHARGE OF AN ANIONIC EMULSIFYING AGENT, PER 100 PARTS BY WEIGHT OF MONOMERS, AT A PH IN THE RANGE OF 7.0 TO 12.0, AND WATER-DISPOSED PAINT PIGMENT ADMIXED WITH THE LATEX, SAID PAINT PIGMENT BEING WATER-DISPERSED BY A PIGMENT DISPERSING AGENT AND SAID DISPERSION PAINT CONTAINING A RELATIVELY SMALL QUANTITY OF MORE THAN ONE ADDITIONAL STABILIZING EMULSIFYING AGENT ADDED TO SAID LATEX AFTER 50% POLYMERIZATION CONVERSION AND BEFORE ADMIXING WITH SAID WATER-DISPERSED PAINT PIGMENT, THE ADDITIONAL EMULSIFYING AGENTS BEING SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC EMULSIFIERS.
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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |