CA2252398A1 - Highly active double metal cyanide catalysts - Google Patents

Highly active double metal cyanide catalysts

Info

Publication number
CA2252398A1
CA2252398A1 CA002252398A CA2252398A CA2252398A1 CA 2252398 A1 CA2252398 A1 CA 2252398A1 CA 002252398 A CA002252398 A CA 002252398A CA 2252398 A CA2252398 A CA 2252398A CA 2252398 A1 CA2252398 A1 CA 2252398A1
Authority
CA
Canada
Prior art keywords
catalysts
metal cyanide
double metal
active double
highly active
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002252398A
Other languages
French (fr)
Other versions
CA2252398C (en
Inventor
Bi Le-Khac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Antwerpen NV
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/634,998 external-priority patent/US5627120A/en
Application filed by Individual filed Critical Individual
Publication of CA2252398A1 publication Critical patent/CA2252398A1/en
Application granted granted Critical
Publication of CA2252398C publication Critical patent/CA2252398C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Polyethers (AREA)

Abstract

Highyl active double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC complex, and organic complexing agent, and from about 5 to about 80 wt.%, based on the amount of catalyst, of a polyether having a number average molecular weight less than about 500. The catalysts polymerize propylene oxide at a rate in excess of about 1 kg PO/g Co/min. at 100 ppm catalyst, based on the weight of finished polyether, at 105 °C. The catalysts, which are easy to prepare, give polyether polyols with exceptionally low unsaturation levels.
CA002252398A 1996-04-19 1997-04-11 Highly active double metal cyanide catalysts Expired - Fee Related CA2252398C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/634,998 US5627120A (en) 1996-04-19 1996-04-19 Highly active double metal cyanide catalysts
US08/634,998 1996-04-19
PCT/EP1997/001820 WO1997040086A1 (en) 1996-04-19 1997-04-11 Highly active double metal cyanide catalysts

Publications (2)

Publication Number Publication Date
CA2252398A1 true CA2252398A1 (en) 1997-10-30
CA2252398C CA2252398C (en) 2006-06-13

Family

ID=36587597

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002252398A Expired - Fee Related CA2252398C (en) 1996-04-19 1997-04-11 Highly active double metal cyanide catalysts

Country Status (1)

Country Link
CA (1) CA2252398C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117143328A (en) * 2023-08-18 2023-12-01 山东滨化聚禾新材料科技有限公司 Preparation method of high-carbon alcohol polyether ester for defoamer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117143328A (en) * 2023-08-18 2023-12-01 山东滨化聚禾新材料科技有限公司 Preparation method of high-carbon alcohol polyether ester for defoamer
CN117143328B (en) * 2023-08-18 2024-04-26 山东滨化聚禾新材料科技有限公司 Preparation method of high-carbon alcohol polyether ester for defoamer

Also Published As

Publication number Publication date
CA2252398C (en) 2006-06-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150413

MKLA Lapsed

Effective date: 20150413