Patent US3177173A successfully refreshed from Google Patents.
US3177173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous latexes of heat-curable elastomers containing carboxylic acid groups
Assignee: Dow Chemical Co
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Filing: 1961-05-31
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Granted: 1965-04-06
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Harold E Filter
- 👤 Robert J Pueschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:07
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/06; C08L; C08L11/00; C08L11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A HEAT-CURABLE, FILM-FORMING COMPOSITION OF MATTER COMPRISING AN AQUEOUS LATEX OF AN INTERPOLYMER COMPOSED ESSENTIALLY OF (I) FROM ABOUT 80 TO ABOUT 99 PERCENT BY WEIGHT OF A NON-ACIDIC MONOMERIC MATERIAL COMPRISING AT LEAST 16 PERCENT BY WEIGHT OF AN OPEN-CHAIN ALIPHATIC CONJUGATED DIENE HAVING FROM 4 TO ABOUT 9 CARBON ATOMS WITH ANY REMAINDER OF SAID NON-ACIDIC MONOMERIC MATERIAL BEING OF A MONOVINYL AROMATIC MONOMER AND (II) FROM 20 TO 1 PERCENT BY WEIGHT OF A POLYMERIZABLE CARBOXYLIC MONOMER MIXTURE CONSISTING ESSENTIALLY OF (1) AN A,B-UNSATURATED MONOCARBOXYLIC ACID AND (2) AN A,B-UNSATURATED DICARBOXYLIC ACID, SAID CARBOXYLIC ACIDS BEING IN THE RATIO TO EACH OTHER OF FROM 0.5 TO 2 PARTS BY WEIGHT OF SAID DICARBOXYLIC ACID FOR EACH PART OF SAID MONOCARBOXYLIC ACID.
Claim 2
Dependent Claim
124 words
A HEAT-CURABLE, FILM-FORMING COMPOSITION OF MATTER COMPRISING AN AQUEOUS LATEX OF AN INTERPOLYMER COMPOSED ESSENTIALLY OF (I) FROM ABOUT 80 TO ABOUT 99 PERCENT BY WEIGHT OF A NON-ACIDIC MONOMERIC MATERIAL COMPRISING AT LEAST 16 PERCENT BY WEIGHT OF AN OPEN-CHAIN ALIPHATIC CONJUGATED DIENE HAVING FROM 4 TO ABOUT 9 CARBON ATOMS WITH ANY REMAINDER OF SAID NON-ACIDIC MONOMERIC MATERIAL BEING OF A MONOVINYL AROMATIC MONOMER AND (II) FROM 20 TO 1 PERCENT BY WEIGHT OF A POLYMERIZABLE CARBOXYLIC MONOMER MIXTURE CONSISTING ESSENTIALLY OF (1) AN A,B-UNSATURATED MONOCARBOXYLIC ACID AND (2) AN A,B-UNSATURATED DICARBOXYLIC ACID, SAID CARBOXYLIC ACIDS BEING IN THE RATIO TO EACH OTHER OF FROM 0.5 TO 2 PARTS BY WEIGHT OF SAID DICARBOXYLIC ACID FOR EACH PART OF SAID MONOCARBOXYLIC ACID.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |