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US3637565A
Expired / Lapsed
US
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Latex compositions having improved adhesion
Assignee: Dow Chemical Co
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Filing: 1964-11-30
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Granted: 1972-01-25
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Expires: 1984-11-30
Abstract
Abstract STABLE, CATIONIC LATICES ARE PREPARED BY EMULSION POLYMERIZATION AT A PH VALUE OF BELOW 7 OF (1) (A) A PRIMARY OR SECONDARY AMINO ALCOHOL ESTER OF AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID OR (B) A PRIMARY OR SECONDARY AMINO ALCOHOL HALF ESTER OF AN A,B-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID WITH (2) AT LEAST ONE OTHER POLYMERIZABLE ETHYLENICALLY UNSATURATED SUBSTANTIALLY WATER-INSOLUBLE MONOMER. TO THESE CATIONIC LATICES MAY BE ADDED A NON-IONIC SURFACTANT AND A BASE-ACTING MATERIAL TO RAISE THE PH TO A VALUE GREATER THAN 8 TO OBTAIN ANIONIC LATICES WHICH HAVE DESIRABLE ADHESIVE PROPERTIES AND ARE COMPATIBLE WITH CONVENTIONAL PAINT FORMULATING INGREDIENTS.
Inventors
- 👤 David P Sheetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:47
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/28; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08J; C08J3/00; C08J3/02; C08J3/03; Y; Y10; Y10S; Y10S526/00; Y10S526/923
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |