Patent US3766189A successfully refreshed from Google Patents.
US3766189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant latex containing chlorinated paraffin wax
Assignee: BASF SE
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Filing: 1972-10-05
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Granted: 1973-10-16
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Expires: 1992-10-05
Abstract
Abstract A FIRE RETARDANT POLYMER COMPOSITION IN LATEX FORM HAS BEEN PREPARED BY ADDING 5 TO 55% BY WEIGHT BASED ON TOTAL MONOMERS OF A 30-70% CHLORINATED PARAFFIN WAX AND 0.05 TO 1.0% BY WEIGHT BASED ON TOTAL MONOMERS OF A PROTECTIVE COLLOID TO A MONOMER MIXTURE COMPRISING 50-90% OF AN ARYL VINYL MONOMER, 10-50% BY WEIGHT OF A CONJUGATED DIOLEFIN, AND 0.5-10% BY WEIGHT OF AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID OR ITS AMIDE, AND POLYMERIZING THE MIXTURE IN AQUEOUS ACIDIC EMULSION.
Inventors
- 👤 E Blackford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:55
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C09; C09K; C09K21/00; C09K21/14; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 0
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |