US3301822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process comprising reacting copolymers with an aldehyde and alkylene oxide
Assignee: Reichhold Chemicals Inc
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Filing: 1964-12-14
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Granted: 1967-01-31
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Dalibor Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:02
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; C08F22/00; C08F8/00; C08F8/14; C08F8/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A PROCESS FOR PREPARING COPOLYMERS BY REACTING A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS, VINYL MONOMERS AND MONOEPOXIDES WHICH COMPRISES (A) POLYMERIZING (A) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID ANHYDRIDES AND CARBOXYLIC ACID, (B) AT LEAST ONE (C) AT LEAST ONE A,B-ETHYLENICALLY UNSATURATED AROMATIC COMPOUND SELECTED FROM A GROUP CONSISTING OF STYRENE, VINYL TOLUENE, ALPHA METHYLSTYRENE, AND HALOGENATED STYRENES, (D) AT LEAST ONE A,B-ETYLENICALLY UNSATURATED ALKYLCARBOXYLIC ACID ESTER, IN THE PRESENCE OF A POLYMERIZATION ACCELERATOR AND SOLVENT BY APPLYING HEAT, AND (B) THEREAFTER SIMULTANEOUSLY REACTING THE COPOLYMERS BY HEATING THEM AT A TEMPERATURE OF FROM 70 TO 90* C. WITH (1) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF FORMALDEHYDE AND SUBSTANCES THAT GIVE OFF FORMALDEHYDE SELECTED FROM A GROUP CONSISTING OF PARAFORMALDEHYDE, TRIOXANE AND HEXAMETHYLENETETRAAMINE, AND (2) AT LEAST ONE EPOXIDE SELECTED FROM A GROUP CONSISTING OF ETHYLENEOXIDE AND PROPYLENEOXIDE IN THE PRESENSE OF A TERTIARY AMINE SELECTED FROM A GROUP CONSISTING OF TRIMETHYLAMINE, TRIETHYLAMINE, TRIETHANOLAMINE AND ETHYLDIETHANOLAMINE, COMPONENTS (A), (B), (C) AND (D) BEING USED IN SUBSTANTIAL LY THE FOLLOWING PROPORTIONS BY WEIGHT:
Claim 2
Dependent Claim
180 words
A PROCESS FOR PREPARING COPOLYMERS BY REACTING A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS, VINYL MONOMERS AND MONOEPOXIDES WHICH COMPRISES (A) POLYMERIZING (A) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID ANHYDRIDES AND CARBOXYLIC ACID, (B) AT LEAST ONE (C) AT LEAST ONE A,B-ETHYLENICALLY UNSATURATED AROMATIC COMPOUND SELECTED FROM A GROUP CONSISTING OF STYRENE, VINYL TOLUENE, ALPHA METHYLSTYRENE, AND HALOGENATED STYRENES, (D) AT LEAST ONE A,B-ETYLENICALLY UNSATURATED ALKYLCARBOXYLIC ACID ESTER, IN THE PRESENCE OF A POLYMERIZATION ACCELERATOR AND SOLVENT BY APPLYING HEAT, AND (B) THEREAFTER SIMULTANEOUSLY REACTING THE COPOLYMERS BY HEATING THEM AT A TEMPERATURE OF FROM 70 TO 90* C. WITH (1) AT LEAST ONE MEMBER OF A GROUP CONSISTING OF FORMALDEHYDE AND SUBSTANCES THAT GIVE OFF FORMALDEHYDE SELECTED FROM A GROUP CONSISTING OF PARAFORMALDEHYDE, TRIOXANE AND HEXAMETHYLENETETRAAMINE, AND (2) AT LEAST ONE EPOXIDE SELECTED FROM A GROUP CONSISTING OF ETHYLENEOXIDE AND PROPYLENEOXIDE IN THE PRESENSE OF A TERTIARY AMINE SELECTED FROM A GROUP CONSISTING OF TRIMETHYLAMINE, TRIETHYLAMINE, TRIETHANOLAMINE AND ETHYLDIETHANOLAMINE, COMPONENTS (A), (B), (C) AND (D) BEING USED IN SUBSTANTIAL LY THE FOLLOWING PROPORTIONS BY WEIGHT:
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |