GB949992A - Stabilization of polyalkylene oxide - Google Patents

Stabilization of polyalkylene oxide

Info

Publication number
GB949992A
GB949992A GB2401161A GB2401161A GB949992A GB 949992 A GB949992 A GB 949992A GB 2401161 A GB2401161 A GB 2401161A GB 2401161 A GB2401161 A GB 2401161A GB 949992 A GB949992 A GB 949992A
Authority
GB
United Kingdom
Prior art keywords
iodide
thiourea
mercaptobenzothiazole
iodine
oxide
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
GB2401161A
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries Ltd
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
Application filed by Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Publication of GB949992A publication Critical patent/GB949992A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/16—Halogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/02—Halogenated hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Abstract

Polyalkylene oxides are stabilized by one or more of the following:-a compound containing one or more iodine atoms; thiourea; an N-alkyl or aryl-thiourea; a substituted or unsubstituted mercaptobenzothiazole; 2-mercapto-imidazoline; an alkali metal thiocyanate. Examples of iodine compounds are ethyl, propyl and benzyl iodides, antimony triiodide, potassium iodide, bismuth triiodide, zinc iodide, stannous iodide, ammonium iodide and iodine itself. The polyalkylene oxide may be polyethylene oxide, polypropylene oxide and block copolymers thereof, and may be in solid, paste or liquid form. In examples, polyethylene oxide (Mol. wt. 2,000,000) and polypropylene oxide (Mol. wt. 1,000,000) are made into 0.1% solutions in water and benzene respectively and stabilized with 2-mercaptoimidazoline, 2-mercaptobenzothiazole, cyclohexylamine salt of 2-mercaptobenzothiazole, potassium thiocyanate, thiourea and with the above iodine compounds, and also, for comparison, with phenyl-beta-naphthylamine and nitrosodiphenylamine. A block copolymer is also tested against paraphenylenediamine and nitrosodiphenylamine.
GB2401161A 1960-07-01 1961-07-03 Stabilization of polyalkylene oxide Expired GB949992A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3013460 1960-07-01
JP3147860 1960-07-11

Publications (1)

Publication Number Publication Date
GB949992A true GB949992A (en) 1964-02-19

Family

ID=26368417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2401161A Expired GB949992A (en) 1960-07-01 1961-07-03 Stabilization of polyalkylene oxide

Country Status (2)

Country Link
DE (1) DE1162561B (en)
GB (1) GB949992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298980A (en) * 1963-08-01 1967-01-17 Union Carbide Corp Alkylene oxide polymer compositions flexibilized with salts of carboxylic acids
WO2000017263A1 (en) * 1998-09-24 2000-03-30 Skw Bauchemie Gmbh Stabilized water-soluble polymer powders on the basis of polyoxy alkylene glycol carboxylates and method for producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574137A (en) * 1984-08-23 1986-03-04 The Dow Chemical Company Process for preparing copolymer polyols

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298980A (en) * 1963-08-01 1967-01-17 Union Carbide Corp Alkylene oxide polymer compositions flexibilized with salts of carboxylic acids
WO2000017263A1 (en) * 1998-09-24 2000-03-30 Skw Bauchemie Gmbh Stabilized water-soluble polymer powders on the basis of polyoxy alkylene glycol carboxylates and method for producing same
AU750708B2 (en) * 1998-09-24 2002-07-25 Construction Research & Technology Gmbh Stabilized water-soluble polymer powders on the basis of polyoxy alkylene glycol carboxylates and method for producing same
US6573316B1 (en) 1998-09-24 2003-06-03 Skw Bauchemie Gmbh Stabilized water-soluble polymer powders on the basis of polyoxy alkylene glycol carboxylates and method for producing same

Also Published As

Publication number Publication date
DE1162561B (en) 1964-02-06

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