GB1321930A - Process for the preparation of stable polyisocyanates which contain biuret groups - Google Patents

Process for the preparation of stable polyisocyanates which contain biuret groups

Info

Publication number
GB1321930A
GB1321930A GB2156371A GB2156371A GB1321930A GB 1321930 A GB1321930 A GB 1321930A GB 2156371 A GB2156371 A GB 2156371A GB 2156371 A GB2156371 A GB 2156371A GB 1321930 A GB1321930 A GB 1321930A
Authority
GB
United Kingdom
Prior art keywords
preparation
polyisocyanates
biuret groups
biuret
contain biuret
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
GB2156371A
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 GB1321930A publication Critical patent/GB1321930A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1854—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety
    • C07C273/1863—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety from urea
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1809—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
    • C07C273/1818—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from -N=C=O and XNR'R"
    • C07C273/1827—X being H
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1872—Preparation of compounds comprising a -N-C(O)-N-C(O)-N- moiety
    • 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
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
    • 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
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8038—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3225

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1321930 Biuret polyisocyanates BAYER AG 19 April 1971 [7 March 1970] 21563/71 Heading C2C [Also in Division C3] Liquid polyisocyanates which contain biuret groups are prepared by reacting a polyisocyanate with a secondary amine at a temperature of from 80‹ to 200‹ C. and at an NCO : NH ratio of from 4 : 1 to 100 : 1. The secondary amine is preferably a secondary monoamine or a bissecondary diamine and the polyisocyanate is preferably a diisocyanate. The biuret-containing polyisocyanates may be used for the preparation of polyurethane foam resins.
GB2156371A 1970-03-07 1971-04-19 Process for the preparation of stable polyisocyanates which contain biuret groups Expired GB1321930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702010887 DE2010887A1 (en) 1970-03-07 1970-03-07 Process for the preparation of stable polyisocyanates containing biuret groups

Publications (1)

Publication Number Publication Date
GB1321930A true GB1321930A (en) 1973-07-04

Family

ID=5764445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2156371A Expired GB1321930A (en) 1970-03-07 1971-04-19 Process for the preparation of stable polyisocyanates which contain biuret groups

Country Status (6)

Country Link
BE (1) BE763856A (en)
CA (1) CA935151A (en)
DE (1) DE2010887A1 (en)
FR (1) FR2081771B1 (en)
GB (1) GB1321930A (en)
NL (1) NL7102992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005009945A2 (en) * 2003-07-24 2005-02-03 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2261065C2 (en) * 1972-12-14 1982-04-01 Basf Ag, 6700 Ludwigshafen Process for the preparation of stable polyisocyanates containing biuret groups
DE2856864A1 (en) * 1978-12-30 1980-07-24 Bayer Ag NEW POLYISOCYANATES, A METHOD FOR THE PRODUCTION AND THEIR USE
DE10322911A1 (en) * 2003-05-21 2004-12-16 Bayer Materialscience Ag Solidified stable blocked polyisocyanates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005009945A2 (en) * 2003-07-24 2005-02-03 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation
WO2005009945A3 (en) * 2003-07-24 2005-07-28 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation
US7378543B2 (en) 2003-07-24 2008-05-27 Bayer Materialscience Llc Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation

Also Published As

Publication number Publication date
BE763856A (en) 1971-08-02
FR2081771A1 (en) 1971-12-10
FR2081771B1 (en) 1976-03-19
DE2010887A1 (en) 1971-09-30
CA935151A (en) 1973-10-09
NL7102992A (en) 1971-09-09

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Legal Events

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