IT996098B - Procedimento per la lineariz zazione di poliuretani - Google Patents

Procedimento per la lineariz zazione di poliuretani

Info

Publication number
IT996098B
IT996098B IT5181973A IT5181973A IT996098B IT 996098 B IT996098 B IT 996098B IT 5181973 A IT5181973 A IT 5181973A IT 5181973 A IT5181973 A IT 5181973A IT 996098 B IT996098 B IT 996098B
Authority
IT
Italy
Prior art keywords
linearization
polyurethanes
procedure
Prior art date
Application number
IT5181973A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT996098B publication Critical patent/IT996098B/it

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)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polyamides (AREA)
  • Pyrrole Compounds (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
IT5181973A 1972-08-05 1973-08-03 Procedimento per la lineariz zazione di poliuretani IT996098B (it)

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
IT996098B true IT996098B (it) 1975-12-10

Family

ID=5852798

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5181973A IT996098B (it) 1972-08-05 1973-08-03 Procedimento per la lineariz zazione di poliuretani

Country Status (10)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542022C2 (de) 1975-09-20 1982-10-14 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von aktivierten, zur Herstellung von Polyurethankunststoffen wiederverwendbaren Polyhydroxylverbindungen

Also Published As

Publication number Publication date
NL7310719A (en]) 1974-02-07
JPS569932B2 (en]) 1981-03-04
IE38048B1 (en) 1977-12-07
GB1423559A (en) 1976-02-04
DE2238667C3 (de) 1979-11-22
FR2194737B1 (en]) 1977-02-25
BE803214A (fr) 1974-02-04
LU68154A1 (en]) 1973-10-15
IE38048L (en) 1974-02-05
FR2194737A1 (en]) 1974-03-01
DE2238667A1 (de) 1974-02-21
ES417587A1 (es) 1976-03-16
DE2238667B2 (de) 1979-04-05
JPS4953694A (en]) 1974-05-24

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