US3264244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid low molecular weight vinyl toluene polymers
Assignee: Imperial Chemical Industries Ltd
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Filing: 1963-06-03
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Granted: 1966-08-02
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Ambler Arnold Edwin
- 👤 Topham Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:37
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/12; Y; Y10; Y10S; Y10S526/00; Y10S526/909
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
NORMALLY SOLID POLYMERS HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE 1000 TO 3200 AND BEING ESSENTIALLY THE PRODUCT OBTAINED BY THE FREE RADICAL EMULSION POLYMERIZATION OF MONOMERIC MATERIAL SELECED FROM THE GROUP CONSISTING OF META-VINYLTOLUENES, PARAVINYLTOLUENES AND MIXTURES THEREOF.
Claim 2
Dependent Claim
41 words
NORMALLY SOLID POLYMERS HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE 1000 TO 3200 AND BEING ESSENTIALLY THE PRODUCT OBTAINED BY THE FREE RADICAL EMULSION POLYMERIZATION OF MONOMERIC MATERIAL SELECED FROM THE GROUP CONSISTING OF META-VINYLTOLUENES, PARAVINYLTOLUENES AND MIXTURES THEREOF.
Claim 3
Dependent Claim
76 words
NORMALLY SOLID POLYMERS HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE 1000 TO 32000 AND BEING ESSENTIALLY THE PRODUCT OBTAINED BY FREE RADICAL EMULSION POLYMERIZING A FIRST MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTNG OF META-VINYLTOLUENES, PARA-VINYLTOLUENES AND MIXTURES THEREOF AND MIXTURES OF THE FIRST MONOMERIC MATERIAL WITH UP TO 10% OF A SECOND MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF STYRENE, HALOGENOSTYRENES, ALKOXYSTYRENES, ALKYL METHABUTADIENE, METHACRYLONITRILE, ALKYLACRYLATES, ALKYL METHACRYLATES, ALKYL FUMARATES AND METHYLVINYLKETONE.
Claim 4
Dependent Claim
76 words
NORMALLY SOLID POLYMERS HAVING A NUMBER AVERAGE MOLECULAR WEIGHT IN THE RANGE 1000 TO 32000 AND BEING ESSENTIALLY THE PRODUCT OBTAINED BY FREE RADICAL EMULSION POLYMERIZING A FIRST MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTNG OF META-VINYLTOLUENES, PARA-VINYLTOLUENES AND MIXTURES THEREOF AND MIXTURES OF THE FIRST MONOMERIC MATERIAL WITH UP TO 10% OF A SECOND MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF STYRENE, HALOGENOSTYRENES, ALKOXYSTYRENES, ALKYL METHABUTADIENE, METHACRYLONITRILE, ALKYLACRYLATES, ALKYL METHACRYLATES, ALKYL FUMARATES AND METHYLVINYLKETONE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |