GB1451695A - Process for polymerizing phenols to produce polyphenylene oxides of low molecular weight - Google Patents

Process for polymerizing phenols to produce polyphenylene oxides of low molecular weight

Info

Publication number
GB1451695A
GB1451695A GB4702074A GB4702074A GB1451695A GB 1451695 A GB1451695 A GB 1451695A GB 4702074 A GB4702074 A GB 4702074A GB 4702074 A GB4702074 A GB 4702074A GB 1451695 A GB1451695 A GB 1451695A
Authority
GB
United Kingdom
Prior art keywords
molecular weight
low molecular
polyphenylene oxides
phenol
produce polyphenylene
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.)
Expired
Application number
GB4702074A
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 JP48012373A external-priority patent/JPS4914676A/ja
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Publication of GB1451695A publication Critical patent/GB1451695A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
    • C08G65/44—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)

Abstract

1451695 Polyphenylene ethers MITSUBISHI GAS CHEMICAL CO Inc 30 Oct 1974 [2 Nov 1973] 47020/74 Heading C3R In a process for producing polyphenylene ethers by reacting a phenol with elemental oxygen in the presence of a catalyst, there is used a solvent in an amount from 1 to 6 times the weight of the phenol and the phenol is added gradually or intermittently to the reaction medium as the reaction proceeds. Examples are given.
GB4702074A 1973-01-29 1974-10-30 Process for polymerizing phenols to produce polyphenylene oxides of low molecular weight Expired GB1451695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48012373A JPS4914676A (en) 1972-04-18 1973-01-29

Publications (1)

Publication Number Publication Date
GB1451695A true GB1451695A (en) 1976-10-06

Family

ID=11803450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4702074A Expired GB1451695A (en) 1973-01-29 1974-10-30 Process for polymerizing phenols to produce polyphenylene oxides of low molecular weight

Country Status (1)

Country Link
GB (1) GB1451695A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418609A2 (en) * 1989-09-20 1991-03-27 Hüls Aktiengesellschaft Thermoplastic moulding compositions based on modified polyphenylene ether
EP1029882A2 (en) * 1999-02-05 2000-08-23 Secretary of Agency of Industrial Science and Technology A crystallizable poly(2,5-di-substituted-1, 4-phenylene oxide) and a method of preparing the same
CN111286022A (en) * 2019-12-06 2020-06-16 中国科学院大连化学物理研究所 Supported catalyst and application thereof in preparation of low-molecular-weight polyphenylene ether

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418609A2 (en) * 1989-09-20 1991-03-27 Hüls Aktiengesellschaft Thermoplastic moulding compositions based on modified polyphenylene ether
EP0418609A3 (en) * 1989-09-20 1992-03-11 Huels Aktiengesellschaft Thermoplastic moulding compositions based on modified polyphenylene ether
EP1029882A2 (en) * 1999-02-05 2000-08-23 Secretary of Agency of Industrial Science and Technology A crystallizable poly(2,5-di-substituted-1, 4-phenylene oxide) and a method of preparing the same
EP1029882A3 (en) * 1999-02-05 2000-12-06 Secretary of Agency of Industrial Science and Technology A crystallizable poly(2,5-di-substituted-1, 4-phenylene oxide) and a method of preparing the same
US6541596B1 (en) 1999-02-05 2003-04-01 Secretary Of Agency Of Industrial Science And Technology Crystallizable poly (2,5-di-substituted-1,4-phenylene oxide) and a method of preparing the same
US6841650B2 (en) 1999-02-05 2005-01-11 National Institute Of Advanced Industrial Science And Technology Crystallizable poly (2,5-di-substituted-1,4-phenylene oxide) and a method of preparing the same
CN111286022A (en) * 2019-12-06 2020-06-16 中国科学院大连化学物理研究所 Supported catalyst and application thereof in preparation of low-molecular-weight polyphenylene ether
CN111286022B (en) * 2019-12-06 2022-07-08 中国科学院大连化学物理研究所 Supported catalyst and application thereof in preparation of low-molecular-weight polyphenylene ether

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee