Patent EP0206756A2 successfully refreshed from Google Patents.
EP0206756A2
Expired / Lapsed
EP
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Living catalysts, complexes and polymers therefrom
Assignee: University of Akron
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Filing: 1986-06-18
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Granted: —
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Expires: 2006-06-18
Abstract
Abstract This invention provides a novel catalyst composed of a complex of an organic acid or its ester and a Lewis acid, preferably boron trichloride that can add olefin monomers to increase the molecular weight of the complex from as low as 200 to in excess of a million, with the complex being active viz., living, until the complex dies, viz., is decomposed or destroyed so that polymers in the liquid or easily liquefiable range of 300 to about 10,000 can be made or those more difficult to be liquefied or unliquefiable, viz., those of over 10,000 up to 100,000 or in some cases 500,000 and then those in the range of the elastomers, or moldable or extrudable plastics range having very high molecular weights, generally in excess of 100,000 up to in excess of 500,000 and having useful end groups such as the halogens and specifically chloride, allyl, acryl or methacryl, acetate or formate to name some of the more useful ones.
Inventors
- 👤 Joseph P. Kennedy
- 👤 Rudolf Faust
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 09:44
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
New compositions of matter characterized by having the structure selected from the class having the formulae of: where R 1 is hydrogen, halogen or an organic moiety of an organic acid; R 2 is the same as R 1 ; R 3 is the same as R 2 ; R 4 is methylene or polymethylene, ethylenic, acetylenic, or related homologous groups; R 8 is a trivalent organic moiety; and y is hydrogen or alkyl.
Claim 2
Dependent Claim
74 words
New compositions of matter characterized by having the structure selected from the class having the formulae of: where R 1 is hydrogen, halogen or an organic moiety of an organic acid; R 2 is the same as R 1 ; R 3 is the same as R 2 ; R 4 is methylene or polymethylene, ethylenic, acetylenic, or related homologous groups; R 8 is a trivalent organic moiety; and y is hydrogen or alkyl.
Claim 3
Dependent Claim
29 words
The new composition of Claim 1 wherein the polyolefin segment of the composition of the formula is formed from an olefin having from 2 to about 20 carbon atoms.
Claim 4
Dependent Claim
23 words
The new composition of Claim 1 wherein at least one part of the polyolefin segment of the formula is formed from a diolefin.
Claim 5
Independent Claim
83 words
A method of producing a complex of an organic carboxylic acid or ester with a Lewis acid characterized by its ability to add at least one olefin monomer and to continue adding said monomer to increase molecular weight of said complex, comprising introducing an organic acid or ester and a Lewis acid into a system and mixing without regard to sequence at a temperature below the decomposition temperature of said complex either in the presence or absence of a solvent for said complex.
Claim 6
Independent Claim
83 words
A method of producing a complex of an organic carboxylic acid or ester with a Lewis acid characterized by its ability to add at least one olefin monomer and to continue adding said monomer to increase molecular weight of said complex, comprising introducing an organic acid or ester and a Lewis acid into a system and mixing without regard to sequence at a temperature below the decomposition temperature of said complex either in the presence or absence of a solvent for said complex.
Claim 7
Dependent Claim
40 words
The method of Claim 4 wherein sufficient olefin monomer has been added while maintaining the temperature below the decomposition temperature of said complex to increase its molecular weight to within a range of 1000 to above a hundred thousand units.
Claim 8
Dependent Claim
19 words
The method of Claim 5 wherein the added olefin monomer is a mixture of an alpha-olefin and a diolefin.
Claim 9
Independent Claim
90 words
A method of producing a complex of an organic carboxylic acid or ester with a Lewis acid and increasing the molecular weight of said complex by adding olefinic monomers thereto characterized by: forming a complex of said organic acid or ester with a Lewis acid by contacting said organic acid or ester with said Lewis acid at a temperature below the temperature at which said complex decomposes, mixing said complex prior to substantial decomposition with at least one olefin to effect a significant increase in molecular weight of said complex.
Claim 10
Independent Claim
90 words
A method of producing a complex of an organic carboxylic acid or ester with a Lewis acid and increasing the molecular weight of said complex by adding olefinic monomers thereto characterized by: forming a complex of said organic acid or ester with a Lewis acid by contacting said organic acid or ester with said Lewis acid at a temperature below the temperature at which said complex decomposes, mixing said complex prior to substantial decomposition with at least one olefin to effect a significant increase in molecular weight of said complex.
Claim 11
Dependent Claim
34 words
The method of Claim 7 wherein the complex and olefin are fed simultaneously to a reactor and the temperature of mixture produced by their intimate mixing is above the decomposition temperature of the complex.
Claim 12
Dependent Claim
38 words
The method of Claim 7 wherein the polymerization rate is sufficient to essentially consume all the olefin in a few minutes and the complex has a decomposition half life greater than time required to consume all the olefin.
Claim 13
Dependent Claim
23 words
The method of Claim 9 wherein the molecular weight increase of the complex varies from about 1,000 to in excess of a million.
References Cited (Backward Citations)
No citation records indexed.
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