US3072591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed esters of a trimethylolalkane and vinyl chloride resin plasticized therewith
Assignee: Thompson Chemical Co
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Filing: 1958-11-14
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Granted: 1963-01-08
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Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Fath Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN AROMATIC-ALIPHATIC CARBOXYLIC ACID MIXED ESTER OF A TRIMETHYLOALKANE WHEREIN AT LEAST 1 METHYLOL GROUP IS ESTERIFIED WITH AN AROMATIC MONOCARBOXLIC ACID SELECTED FROM THE GROUP CONSISTING OF BENZOIC, ALKYLBENZOIC, BENZOLYBENZOIC AND NAPHTHOIC ACID, AND EACH OF THE REMAINING METHYLOL GROUPS IS ESTERIFIED WITH THE SAME SATURATED ALIPHATIC MONOCARBOXYLIC ACID HAVING A CARBON CONTENT OF AT LEAST 6 CARBON ATOMS, SAID ESTER POSSESSING LOW VOLATILITY, GOOD HEAT AGING PROPERTIES, AND COMPATIBILITY WITH VINYL CHLORIDE POLYMERS.
Claim 2
Dependent Claim
116 words
A VINYL CHLORIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE WITH A MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, HAVING INCORPORATED THEREIN AS A PLASTICIZER FROM ABOUT 3% TO ABOUT 200% BY WEIGHT OF AN AROMATIC-ALIPHATIC CARBOXYLIC ACID MIXED ESTER OF A TRIMETHYLOLAKANE WHEREIN AT LEAST 1 METHYLOL GROUP IS ESTERIFIED WITH AN AROMATIC MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF BENZOIC, ALKYLBENZOIC, BENZOLYBENZOIC AND NAPHTHOIC ACID, AND EACH OF THE REMAINING METHYLOL GROUPS IS ESTERIFIED WITH THE SAME SATURATED ALIPHATIC MONOCARBOXYLIC ACID HAVING A CARBON CONTENT OF AT LEAST 6 CARBON ATOMS, SAID ESTER POSSESSING LOW VOLATILITY, GOOD HEAT AGING PROPERTIES, AND COMPATIBILITY WITH VINYL CHLORIDE POLYMERS.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |