EP0196569A1
Expired / Lapsed
EP
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Process for preparing polyalkylene oxide having unsaturated end groups
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1986-03-21
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Granted: —
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Expires: 2006-03-21
Abstract
Abstract Polypropylene oxide having unsaturated end groups is prepared by polymerizing alkylene oxide in the presence of a complex catalyst prepared by reacting an organoaluminum compound with a porphyrin compound and an active hydrogen-containing compound and converting at least one hydroxyl end groups into an unsaturated end group(s), the prepared polymer having a narrow distribution of molecular weight.
Inventors
- 👤 Shohei Inoue
- 👤 Takuzo Aida
- 👤 Michihide Honma
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3322; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12; C08G65/337
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
50 words
A process for preparing polyalkylene oxide having unsaturated end groups which comprises polymerizing alkylene oxide in the presence of a complex catalyst prepared by reacting an organoaluminum compound with a porphyrin compound and an active hydrogen-containing compound and converting at least one hydroxyl end groups into an unsaturated end group(s).
Claim 2
Dependent Claim
50 words
A process for preparing polyalkylene oxide having unsaturated end groups which comprises polymerizing alkylene oxide in the presence of a complex catalyst prepared by reacting an organoaluminum compound with a porphyrin compound and an active hydrogen-containing compound and converting at least one hydroxyl end groups into an unsaturated end group(s).
Claim 3
Dependent Claim
12 words
The process according to claim 1, wherein the porphyrin compound is tetraphenylporphyrin.
Claim 4
Dependent Claim
12 words
The process according to claim 1, wherein alkylene oxide is propylene oxide.
Claim 5
Dependent Claim
18 words
The process according to claim 1, wherein the active hydrogen-containing compound contains at least two active hydrogen atoms.
Claim 6
Dependent Claim
16 words
The process according to claim 1, wherein the active hydrogen-containing compound has an unsaturated end group.
References Cited (Backward Citations)
FR2232562A1
Cited
GB2004868A
Cited
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