US3234155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazoline-internal epoxy compound reaction products as stabilizers and plasticizers for polyvinyl chloride polymers and copolymers
Assignee: WR Grace and Co
•
Filing: 1960-10-11
•
Granted: 1966-02-08
•
Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth C Dearborn
- 👤 Philip K Isaacs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:59
CPC Classifications
C; C08; C08K; C08K13/00; C08K13/02; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/16; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/5073; C08K5/00; C08K5/04; C08K5/15; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L63/00; C08L91/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
A CURABLE COMPOSITION COMPRISING (1) A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND 50% TO 97% OF VINYL CHLORIDE COPOLYMERIZED WITH 3% TO 50% OF ANOTHER POLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSSITING OF VINYL ESTERS, VINYLIDENE CHLORIDE AND DIBUTYL MALEATE, AND (2) THE PRODUCT DERIVED BY REACTING AT A TEMPERATURE BETWEEN ABOUT 100*C. AND 190*C.: (I) 50% TO 95% OF AN EPOXY COMPOUND WHICH IS DEVOID OF TERMINAL EPOXY GROUPS; AND (II) 5% TO 50% OF AN IMIDAZOLINE OF A MOLECULAR WEIGHT NOT EXCEEDING 1000 AND HAVING THE FORMULA
Claim 2
Dependent Claim
94 words
A CURABLE COMPOSITION COMPRISING (1) A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND 50% TO 97% OF VINYL CHLORIDE COPOLYMERIZED WITH 3% TO 50% OF ANOTHER POLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSSITING OF VINYL ESTERS, VINYLIDENE CHLORIDE AND DIBUTYL MALEATE, AND (2) THE PRODUCT DERIVED BY REACTING AT A TEMPERATURE BETWEEN ABOUT 100*C. AND 190*C.: (I) 50% TO 95% OF AN EPOXY COMPOUND WHICH IS DEVOID OF TERMINAL EPOXY GROUPS; AND (II) 5% TO 50% OF AN IMIDAZOLINE OF A MOLECULAR WEIGHT NOT EXCEEDING 1000 AND HAVING THE FORMULA
Claim 3
Dependent Claim
24 words
A POLYMER OBTAINED BY CURNG THE COMPOSITION OF CLAIM 1 BY HEATING AT A TEMPERATURE BETWEEN 140*C. AND 240*C. FOR 1 TO 10 MINUTES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |