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US3887647A
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US
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Thermoplastic blended resinous composition containing polyphenylene ether
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1973-10-02
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Granted: 1975-06-03
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Expires: 1993-10-02
Abstract
Abstract A thermoplastic blended resinous composition having very superior moldability and workability, comprising 10 to 40 percent by weight of a polyphenylene ether, 10 to 30 percent by weight of high styrene rubber and 50 to 75 percent by weight of a rubbermodified chlorostyrene polymer, the total sum of the proportions of these constituents being 100 percent by weight.
Inventors
- 👤 Eiichi Yonemitsu
- 👤 Akitoshi Sugio
- 👤 Seiichi Kamiyama
- 👤 Masanobu Masu
- 👤 Masaharu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:10
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
A THERMOPLASTIC BLENDED RESINOUS COMPOSITION COMPRISING A. 10 TO 40 PERCENT BY WEIGHT OF A POLYPHENYLENE ETHER HAVING RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
23 words
A THERMOPLASTIC BLENDED RESINOUS COMPOSITION COMPRISING A. 10 TO 40 PERCENT BY WEIGHT OF A POLYPHENYLENE ETHER HAVING RECURRING UNITS OF THE FORMULA
Claim 3
Dependent Claim
23 words
A thermoplastic blended resinous composition comprising a. 10 to 40 percent by weight of a polyphenylene ether having recurring units of the formula
Claim 4
Dependent Claim
23 words
A thermoplastic blended resinous composition comprising a. 10 to 40 percent by weight of a polyphenylene ether having recurring units of the formula
Claim 5
Dependent Claim
46 words
The composition of claim 1 wherein said component (c) is a rubber-modified chlorostyrene polymer composed of units derived from a conjugated diene compound and units derived from a mixture of more than 50 percent by weight of chlorostyrene and the remainder being styrene or its derivative.
Claim 6
Dependent Claim
17 words
The composition of claim 1 which further contains a thermal stabilizer, a plasticizer and a flame retardant.
Claim 7
Dependent Claim
26 words
The composition of claim 1 which has non-inflammability corresponding to, or exceeding, the level of SE-1 in the combustion test in accordance with the UL-Subject-94 Standards.
Claim 8
Dependent Claim
25 words
The composition of claim 3 wherein said flame retardant is selected from the group consisting of decabromobiphenyl, pentabromophenol, pentabromotoluene, hexabromobenzene, decabromodiphenyl carbonate and tetrabromophthalic anhydride.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |