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Patent US4567242A successfully refreshed from Google Patents.
US4567242A
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Flame retarder for organic high molecular compounds prepared from polycondensates of halogenated phenols
Assignee: DKS Co Ltd
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Filing: 1983-03-30
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Granted: 1986-01-28
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Expires: 2003-03-30
Abstract
Abstract Compounds useful as flame retarders for organic high molecular compounds are obtained by reacting a polycondensate of a halogenated phenol, e.g. a tribromophenol polycondensate, with a metal compound or organic compound having at least two functional groups capable of reacting with the terminal hydroxyl group of the polycondensate, e.g. an alkaline earth metal halide, an alkyl dihalide or an acyl dihalide.
Inventors
- 👤 Setsuo Nishibori
- 👤 Hirohito Komori
- 👤 Syuji Saeki
- 👤 Hiromitsu Kinoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:54
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/06; C09K21/08; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G79/00; C08G79/02; C08G79/04; C08G85/00; C08K; C08K5/00; C08K5/04; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A flame retarder for organic high molecular compounds which comprises a compound prepared by reacting a polycondensate of a halogenated phenol with a member selected from the group consisting of a metal compound and an organic compound, said metal compound and organic compound having at least two functional groups capable of reacting with the terminal hydroxyl group of said polycondensate.
Claim 2
Dependent Claim
60 words
A flame retarder for organic high molecular compounds which comprises a compound prepared by reacting a polycondensate of a halogenated phenol with a member selected from the group consisting of a metal compound and an organic compound, said metal compound and organic compound having at least two functional groups capable of reacting with the terminal hydroxyl group of said polycondensate.
Claim 3
Dependent Claim
31 words
The flame retarder of claim 1, wherein said halogenated phenol is a member selected from the group consisting of monobromophenol, dibromophenol, tribromophenol, tetrabromophenol, pentabromophenol, dibromocresol, monochlorophenol, dichlorophenol, trichlorophenol, tetrachlorophenol and pentachlorophenol.
Claim 4
Dependent Claim
32 words
The flame retarder of claim 1, wherein said metal compound is a member selected from the group consisting of magnesium halides, aluminum halides, calcium halides, antomony halides, tin halides and barium halides.
Claim 5
Dependent Claim
45 words
A flame retarder for organic high molecular compounds which comprises a compound prepared by reacting a polycondensate of a halogenated phenol with an organic compound selected from the group consisting of alkyl dihalides, acyl dihalides, haloacyl dihalides, phosphoro dihalodate, cyanuric halides and a polyepoxy compound.
Claim 6
Dependent Claim
45 words
A flame retarder for organic high molecular compounds which comprises a compound prepared by reacting a polycondensate of a halogenated phenol with an organic compound selected from the group consisting of alkyl dihalides, acyl dihalides, haloacyl dihalides, phosphoro dihalodate, cyanuric halides and a polyepoxy compound.
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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |