GB1423559A - Process for the linearisation of polyurethanes with lactams and lactam addition compounds - Google Patents

Process for the linearisation of polyurethanes with lactams and lactam addition compounds

Info

Publication number
GB1423559A
GB1423559A GB3696373A GB3696373A GB1423559A GB 1423559 A GB1423559 A GB 1423559A GB 3696373 A GB3696373 A GB 3696373A GB 3696373 A GB3696373 A GB 3696373A GB 1423559 A GB1423559 A GB 1423559A
Authority
GB
United Kingdom
Prior art keywords
lactam
polyurethanes
linearizing
agent
caprolactam
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
GB3696373A
Other languages
English (en)
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 AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1423559A publication Critical patent/GB1423559A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
    • 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
    • C08G18/83—Chemically modified polymers
    • C08G18/833—Chemically modified polymers by nitrogen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polyamides (AREA)
  • Pyrrole Compounds (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
GB3696373A 1972-08-05 1973-08-03 Process for the linearisation of polyurethanes with lactams and lactam addition compounds Expired GB1423559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2238667A DE2238667C3 (de) 1972-08-05 1972-08-05 Verfahren zur Linearisierung von Polyurethanen mit Lactamen und/oder Lactamadditionsverbindungen

Publications (1)

Publication Number Publication Date
GB1423559A true GB1423559A (en) 1976-02-04

Family

ID=5852798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3696373A Expired GB1423559A (en) 1972-08-05 1973-08-03 Process for the linearisation of polyurethanes with lactams and lactam addition compounds

Country Status (10)

Country Link
JP (1) JPS569932B2 (he)
BE (1) BE803214A (he)
DE (1) DE2238667C3 (he)
ES (1) ES417587A1 (he)
FR (1) FR2194737B1 (he)
GB (1) GB1423559A (he)
IE (1) IE38048B1 (he)
IT (1) IT996098B (he)
LU (1) LU68154A1 (he)
NL (1) NL7310719A (he)

Also Published As

Publication number Publication date
IE38048L (en) 1974-02-05
DE2238667C3 (de) 1979-11-22
DE2238667A1 (de) 1974-02-21
JPS569932B2 (he) 1981-03-04
BE803214A (fr) 1974-02-04
JPS4953694A (he) 1974-05-24
FR2194737A1 (he) 1974-03-01
NL7310719A (he) 1974-02-07
FR2194737B1 (he) 1977-02-25
IT996098B (it) 1975-12-10
ES417587A1 (es) 1976-03-16
LU68154A1 (he) 1973-10-15
DE2238667B2 (de) 1979-04-05
IE38048B1 (en) 1977-12-07

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Legal Events

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