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GB811569A - Method for the preparation of improved resinous aromatic polyetheralcohols and products thereby obtained - Google Patents

Method for the preparation of improved resinous aromatic polyetheralcohols and products thereby obtained

Info

Publication number
GB811569A
GB811569A GB1889/57A GB188957A GB811569A GB 811569 A GB811569 A GB 811569A GB 1889/57 A GB1889/57 A GB 1889/57A GB 188957 A GB188957 A GB 188957A GB 811569 A GB811569 A GB 811569A
Authority
GB
United Kingdom
Prior art keywords
moles
phenol
novolak
oxide
phenolic
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
GB1889/57A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB811569A publication Critical patent/GB811569A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28Chemically modified polycondensates
    • C08G8/36Chemically modified polycondensates by etherifying

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Phenol-formaldehyde novolaks derived essentially from phenol and having 3-10 phenolic units per molecule are etherified in the presence of an alkali metal hydroxide catalyst and at 100-220 DEG C. with (i) 0.05-1.0 moles. of styrene oxide per phenolic unit and then (ii) 1.2-0.25 moles. per phenolic unit of (a) an alkylene oxide containing 2-4 carbon atoms, (b) a hydroxy alkylene oxide containing 3-5 carbon atoms or (c) an aryl glycidyl ether, by continuing the reaction until at least 70 per cent of the novolak phenolic hydroxyl groups are etherified. In the examples, 0.82 moles. of formaldehyde are reacted with 1 mole. phenol in the presence of phosphoric acid and water; the resultant novolak is dissolved in dioxane, mixed with alcoholic KOH and placed in a high-pressure rocking-type reactor; varying quantities of styrene oxide within the permitted range are heated at average temperatures of 105-120 DEG C. for 12-48 hours with the novolak; there are then added varying quantities of ethylene oxide (Examples 1, 2 and 6), propylene oxide (3), phenyl glycidyl ether (4) or hydroxy propylene oxide (5) which are heated at average temperatures of 140-155 DEG C. for 3-5.75 hours; finally the product is cooled, neutralized with citric acid, devolatilized to remove solvent, washed and dried. Specifications 811,567 and 811,568 are referred to.
GB1889/57A 1956-01-26 1957-01-18 Method for the preparation of improved resinous aromatic polyetheralcohols and products thereby obtained Expired GB811569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US811569XA 1956-01-26 1956-01-26

Publications (1)

Publication Number Publication Date
GB811569A true GB811569A (en) 1959-04-08

Family

ID=22162450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1889/57A Expired GB811569A (en) 1956-01-26 1957-01-18 Method for the preparation of improved resinous aromatic polyetheralcohols and products thereby obtained

Country Status (1)

Country Link
GB (1) GB811569A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206511A (en) * 1959-07-08 1965-09-14 Geigy Chem Corp Non-ionogenic polyamine ether capillary active compounds
CN110669213A (en) * 2019-10-22 2020-01-10 武汉奥克特种化学有限公司 Preparation method of bisphenol A polyether

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3206511A (en) * 1959-07-08 1965-09-14 Geigy Chem Corp Non-ionogenic polyamine ether capillary active compounds
CN110669213A (en) * 2019-10-22 2020-01-10 武汉奥克特种化学有限公司 Preparation method of bisphenol A polyether

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