Patent US2190655A successfully refreshed from Google Patents.
Patent EP0071252B1 successfully refreshed from Google Patents.
EP0071252B1
Expired / Lapsed
EP
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Method for deactivation treatment of catalysts
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1982-07-27
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Granted: 1985-10-23
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Expires: 2002-07-27
Abstract
No abstract record available.
Inventors
- 👤 Kiyoshi Kawai
- 👤 Yoshinobu Matsuda
- 👤 Katsumi Hanji
- 👤 Takanori Yamamoto
- 👤 Kazuo Baba
- 👤 Kizuku Wakatsuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:39
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A method for the deactivation treatment of a catalyst, which comprises allowing the polymerization mixture formed by polymerizing an olefin in the presence of a polymerization catalyst comprising a transition metal compound component and an organometallic compound component to contact a water-containing metallic salt of a fatty acid under conditions such that wherein X is the quantity of said metallic salt in gram, Y is the water content of said metallic salt in weight percent, and Z is the number of moles of said organometallic compound in the polymerization mixture.
Claim 2
Independent Claim
90 words
A method for the deactivation treatment of a catalyst, which comprises allowing the polymerization mixture formed by polymerizing an olefin in the presence of a polymerization catalyst comprising a transition metal compound component and an organometallic compound component to contact a water-containing metallic salt of a fatty acid under conditions such that wherein X is the quantity of said metallic salt in gram, Y is the water content of said metallic salt in weight percent, and Z is the number of moles of said organometallic compound in the polymerization mixture.
Claim 3
Dependent Claim
23 words
A method according to claim 1, wherein said metallic salt of fatty acid is calcium stearate, calcium 12-hydroxystearate, zinc stearate or sodium stearate.
Claim 4
Dependent Claim
24 words
A method according to claim 1, wherein the water content Y of the metallic salt of fatty acid is 1 to 30% by weight.
Claim 5
Dependent Claim
34 words
A method according to claim 1, wherein the olefin is one member or a mixture of two or more members selected from the group consisting of ethylene, propylene, butene-1, pentene-1, 4-methylpentene-1, hexene-1 and octene-1.
Claim 6
Dependent Claim
51 words
A method according to claim 1, wherein the contact between the metallic salt of fatty acid and the polymerization mixture is effected by adding said metallic salt as such or suspended in a hydrocarbon to a polymerization vessel or a polymerization terminating tank, and mixing with the polymerization mixture by agitation.
References Cited (Backward Citations)
No citation records indexed.
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