ES278141A1 - Procedure for stabilization of formaldehyde polymers of high molecular weight (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for stabilization of formaldehyde polymers of high molecular weight (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES278141A1
ES278141A1 ES278141A ES278141A ES278141A1 ES 278141 A1 ES278141 A1 ES 278141A1 ES 278141 A ES278141 A ES 278141A ES 278141 A ES278141 A ES 278141A ES 278141 A1 ES278141 A1 ES 278141A1
Authority
ES
Spain
Prior art keywords
translation
molecular weight
machine
high molecular
legally binding
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
ES278141A
Other languages
Spanish (es)
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.)
Soc It Resine
Original Assignee
Soc It Resine
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 Soc It Resine filed Critical Soc It Resine
Publication of ES278141A1 publication Critical patent/ES278141A1/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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06—Catalysts
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/56—Polyacetals
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/71—Monoisocyanates or monoisothiocyanates
    • 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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde
    • 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
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/30—Chemical modification by after-treatment
    • C08G2/32—Chemical modification by after-treatment by esterification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Stabilization process of formal polymers of high molecular weight due to the fact that terminal hydroxyl groups are converted to thiocarboxylic acid esters by reaction of the polymer, suspended in inert solvents, with isothiocyanates in the presence or absence of catalysts. (Machine-translation by Google Translate, not legally binding)
ES278141A 1961-07-04 1962-06-09 Procedure for stabilization of formaldehyde polymers of high molecular weight (Machine-translation by Google Translate, not legally binding) Expired ES278141A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1239861 1961-07-04

Publications (1)

Publication Number Publication Date
ES278141A1 true ES278141A1 (en) 1962-10-01

Family

ID=11139717

Family Applications (1)

Application Number Title Priority Date Filing Date
ES278141A Expired ES278141A1 (en) 1961-07-04 1962-06-09 Procedure for stabilization of formaldehyde polymers of high molecular weight (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES278141A1 (en)
LU (1) LU41940A1 (en)

Also Published As

Publication number Publication date
LU41940A1 (en) 1962-08-25

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