US3039991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of flame-resistant styrene polymer in the presence of a chlorinated ethylenically unsaturated compound and a brominated ester of phosphoric acid
Assignee: Expanded Rubber Co Ltd
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Filing: 1959-10-28
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Granted: 1962-06-19
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Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Cooper Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:19
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F257/00; C08F257/02; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; Y; Y10; Y10S; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE PRODUCTION OF A FLAME-RESISTANT POLYMERIC MATERIAL, WHICH COMPRISES POLYMERISING IN THE PRESENCE OF A POLYMERISATION CATALYST A LIQUID MIXTURE CONTAINING: (A) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND PARTIALLY POLYMERISED STYRENE AND METHYL SUBSTITUTED STYRENES AND COPOLYMERS OF STYRENE WITH ACRYLONITRILE AND METHYL METHACRYLATE; (B) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND PARTIALLY POLYMERISED VINYLIDENE CHLORIDE, MONOMERIC AND PARTIALLY POLYMERISED VINYL CHLORIDE AND CHLOROPRENE; (C) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BROMINATED ALKYL AND ARYL ESTERS OF PHOSPHORIC ACID.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE PRODUCTION OF A FLAME-RESISTANT POLYMERIC MATERIAL, WHICH COMPRISES POLYMERISING IN THE PRESENCE OF A POLYMERISATION CATALYST A LIQUID MIXTURE CONTAINING: (A) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND PARTIALLY POLYMERISED STYRENE AND METHYL SUBSTITUTED STYRENES AND COPOLYMERS OF STYRENE WITH ACRYLONITRILE AND METHYL METHACRYLATE; (B) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND PARTIALLY POLYMERISED VINYLIDENE CHLORIDE, MONOMERIC AND PARTIALLY POLYMERISED VINYL CHLORIDE AND CHLOROPRENE; (C) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF BROMINATED ALKYL AND ARYL ESTERS OF PHOSPHORIC ACID.
References Cited (Backward Citations)
US2660543A
Cited
US2536988A
Cited
US2676927A
Cited
US2717216A
Cited
US2909501A
Cited
FR1168662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |