Patent US197643A successfully refreshed from Google Patents.
Patent EP0232201A2 successfully refreshed from Google Patents.
EP0232201A2
Expired / Lapsed
EP
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Process for the direct synthesis of highly amorphous propylene homopolymers and propylene-ethylene copolymers
Assignee: Eastman Kodak Co
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Filing: 1987-01-26
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Granted: —
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Expires: 2007-01-26
Abstract
Abstract Disclosed is a process for the production of highly amorphous propylene homopolymers or propylene-ethylene copolymers which comprises polymerizing propylene or a mixture of propylene and ethylene at a temperature of 130°C-190°C and a pressure of about 300-5000 psig (2,068-34,475 kPa) in the presence of a catalyst system which comprises (a) titanium halide on a support comprising magnesium chloride and (b) an aluminum alkyl.
Inventors
- 👤 Thomas William C/O Eastman Kodak Company Smith
- 👤 William Albert C/O Eastman Kodak Company Ames
- 👤 Robert Emmett C/O Eastman Kodak Company Holliday
- 👤 Neal C/O Eastman Kodak Company Pearson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 10:53
CPC Classifications
C; C08; C08F; C08F10/00; C08F10/04; C08F10/06; C08F110/00; C08F110/04; C08F110/06; C08F210/00; C08F210/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
72 words
Process for the production of highly amorphous propylene homopolymers or propylene-ethylene copolymers characterized by polymerizing propylene or a mixture of propylene and ethylene at a temperature of 130°C-190°C and a pressure of 300-5000 psig (2,068-34,475 kPa) in the presence of a catalytic amount of a catalyst system which comprises (a) titanium halide on a support comprising magnesium chloride and (b) an aluminum alkyl in which the alkyl groups contain 2-8 carbon atoms.
Claim 2
Dependent Claim
72 words
Process for the production of highly amorphous propylene homopolymers or propylene-ethylene copolymers characterized by polymerizing propylene or a mixture of propylene and ethylene at a temperature of 130°C-190°C and a pressure of 300-5000 psig (2,068-34,475 kPa) in the presence of a catalytic amount of a catalyst system which comprises (a) titanium halide on a support comprising magnesium chloride and (b) an aluminum alkyl in which the alkyl groups contain 2-8 carbon atoms.
Claim 3
Dependent Claim
12 words
Process according to Claim 1 wherein said titanium halide is titanium tetrachloride.
Claim 4
Dependent Claim
22 words
Process according to Claim 1 wherein said titanium halide is titanium tetrachloride and said support contains magnesium chloride as a major ingredient.
Claim 5
Dependent Claim
15 words
Process according to Claim 1 wherein said aluminum alkyl is aluminum triethyl or aluminum triisobutyl.
Claim 6
Dependent Claim
33 words
Process according to Claim 1 wherein the titanium halide is titanium tetrachloride, the aluminum alkyl is aluminum triethyl and the mole ratio of aluminum triethyl to titanium chloride is between 1:1 and 15:1.
Claim 7
Dependent Claim
21 words
The process of Claim 1 wherein the reaction occurs in the presence of a hydrocarbon solvent of said polymer or copolymer.
References Cited (Backward Citations)
No citation records indexed.
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