US4514555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of high molecular weight organoaluminum _polymers
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1984-03-05
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Granted: 1985-04-30
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Expires: 2004-03-05
Abstract
Abstract A process for producing a high molecular weight organoaluminum polymer by using an organoaluminum compound, water and an organic acid. The organoaluminum polymer obtained herein is suitable for preparing fibers.
Inventors
- 👤 Isoji Taniguchi
- 👤 Yoshiharu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:27
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/10; C07; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
118 words
A process for producing a high molecular weight organoaluminum polymer comprising reacting an organoaluminum compound with water, the improvement wherein the reactants are (1) water, (2) an organoaluminum compound represented by the general formula (I): ##STR6## wherein X, Y and Z are each a hydrogen atom, an alkyl group, an alkoxyl group, or an acyloxyl group, provided that when any one of X, Y and Z is an acyloxyl group, at least one of the others is an acyloxyl group and (3) an organic acid in an amount such that the total amount of the organic acid and the acyloxyl group contained in the organoaluminum compound is from 1.1 to 11 moles per mole of the organoaluminum compound.
Claim 2
Dependent Claim
118 words
A process for producing a high molecular weight organoaluminum polymer comprising reacting an organoaluminum compound with water, the improvement wherein the reactants are (1) water, (2) an organoaluminum compound represented by the general formula (I): ##STR6## wherein X, Y and Z are each a hydrogen atom, an alkyl group, an alkoxyl group, or an acyloxyl group, provided that when any one of X, Y and Z is an acyloxyl group, at least one of the others is an acyloxyl group and (3) an organic acid in an amount such that the total amount of the organic acid and the acyloxyl group contained in the organoaluminum compound is from 1.1 to 11 moles per mole of the organoaluminum compound.
Claim 3
Dependent Claim
23 words
The process as claimed in claim 1, wherein the molar ratio of the water to the organoaluminum compound is from 1:1 to 3:5:1.
Claim 4
Dependent Claim
22 words
The process as claimed in claim 1, wherein the organic acid is added during the reaction of the organoaluminum compound and water.
Claim 5
Dependent Claim
23 words
The process as claimed in claim 1, wherein the organic acid is added prior to the reaction of the organoaluminum compound and water.
Claim 6
Dependent Claim
22 words
The process as claimed in claim 1, wherein the organic acid is added after the reaction of the organoaluminum compound and water.
Claim 7
Dependent Claim
35 words
The process as claimed in claim 1, wherein a part of the organic acid is added during the reaction of the organoaluminum compound and water, and the remainder is added after completion of the reaction.
Claim 8
Dependent Claim
65 words
The process as claimed in claim 1, wherein when the organoaluminum compound is represented by the general formula (II): ##STR7## wherein X is as defined above, and R 1 and R 2 are the same or different and are each at least one organic radical, the organic acid is added in an amount of from 0.2 to 9 moles per mole of the organoaluminum compound.
Claim 9
Dependent Claim
68 words
The process as claimed in claim 1, wherein when the organoaluminum compound is represented by the general formula (III): ##STR8## wherein X is as defined above, and R 1 , R 2 and R 3 are the same or different and are each at least one organic radical, the organic acid is added in an amount of from 0.2 to 8 moles per mole of the organoaluminum compound.
Claim 10
Dependent Claim
40 words
The process as claimed in claim 1, wherein the organoaluminum compound is represented by the general formula (IV): ##STR9## wherein R 1 , R 2 and R 3 are the same or different and are at least one organic radical.
Claim 11
Dependent Claim
22 words
The process as claimed in claim 2, wherein the organic acid is added during the reaction of the organoaluminum compound and water.
Claim 12
Dependent Claim
23 words
The process as claimed in claim 2, wherein the organic acid is added prior to the reaction of the organoaluminum compound and water.
Claim 13
Dependent Claim
22 words
The process as claimed in claim 2, wherein the organic acid is added after the reaction of the organoaluminum compound and water.
Claim 14
Dependent Claim
35 words
The process as claimed in claim 2, wherein a part of the organic acid is added during the reaction of the organoaluminum compound and water, and the remainder is added after completion of the reaction.
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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |