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IE39672B1 - Method of preparing polyisocyanates which are blocked with dialkyl malonates - Google Patents

Method of preparing polyisocyanates which are blocked with dialkyl malonates

Info

Publication number
IE39672B1
IE39672B1 IE1745/74A IE174574A IE39672B1 IE 39672 B1 IE39672 B1 IE 39672B1 IE 1745/74 A IE1745/74 A IE 1745/74A IE 174574 A IE174574 A IE 174574A IE 39672 B1 IE39672 B1 IE 39672B1
Authority
IE
Ireland
Prior art keywords
blocked
polyisocyanates
aug
malonates
dialkyl malonates
Prior art date
Application number
IE1745/74A
Other versions
IE39672L (en
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 IE39672L publication Critical patent/IE39672L/en
Publication of IE39672B1 publication Critical patent/IE39672B1/en

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
    • 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
    • C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
    • C08G18/8093—Compounds containing active methylene groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1442024 Polyurethanes from blocked biuret polyisocyanates BAYER AG 22 Aug 1974 [23 Aug 1973] 36919/74 Heading C3R [Also in Division C2] Polyurethane resins are obtained from polyols and aliphatic, cycloaliphatic or araliphatic biuret polyisocyanates which have an -NCO functionality of more than 2 and which are blocked with diallyl malonates and which are obtained by reacting the corresponding buiret polyisocyanates with malonic acid dialkyl esters, at 20‹ to 120‹ C., the reaction being carried out in a solvent which contains ester groups, and the reaction mixture always containing excess of the dialkyl malonate. [GB1442024A]
IE1745/74A 1973-08-23 1974-08-22 Method of preparing polyisocyanates which are blocked with dialkyl malonates IE39672B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2342603A DE2342603C3 (en) 1973-08-23 1973-08-23 Process for the preparation of malonic acid dialkyl ester-blocked biuret polyisocyanates and their use

Publications (2)

Publication Number Publication Date
IE39672L IE39672L (en) 1975-02-23
IE39672B1 true IE39672B1 (en) 1978-12-06

Family

ID=5890528

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1745/74A IE39672B1 (en) 1973-08-23 1974-08-22 Method of preparing polyisocyanates which are blocked with dialkyl malonates

Country Status (10)

Country Link
BE (1) BE819042A (en)
DE (1) DE2342603C3 (en)
DK (1) DK449474A (en)
FR (1) FR2241573B1 (en)
GB (1) GB1442024A (en)
IE (1) IE39672B1 (en)
IT (1) IT1018973B (en)
LU (1) LU70771A1 (en)
NL (1) NL7411118A (en)
SE (1) SE7410681L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3046409A1 (en) * 1980-12-10 1982-07-15 Bayer Ag, 5090 Leverkusen COATING AGENTS AND A METHOD FOR PRODUCING COVERS
US4439593A (en) * 1983-05-26 1984-03-27 Mobay Chemical Corporation Polyurethane compositions with improved storage stability
US4518522A (en) * 1983-09-19 1985-05-21 Mobay Chemical Corporation Blocked polyisocyanates with improved storage stability
AT381500B (en) * 1985-05-29 1986-10-27 Vianova Kunstharz Ag METHOD FOR PRODUCING CROSSLINKING COMPONENTS AND THE USE THEREOF FOR LACQUER BINDERS
DE3606513C2 (en) 1986-02-28 1998-05-07 Basf Coatings Ag Dispersions of crosslinked polymer microparticles in aqueous media and processes for producing these dispersions
US4677180A (en) * 1986-07-16 1987-06-30 Mobay Corporation Polyurethane compositions with improved storage stability
DE4022660A1 (en) * 1990-07-17 1992-01-23 Bayer Ag BINDER COMBINATION, ITS USE IN BURNING VARNISHES AND A METHOD OF MANUFACTURING OVERCOMINGS
DE4405042A1 (en) * 1994-02-17 1995-08-24 Herberts Gmbh Process for the preparation of blocked isocyanates, the blocked isocyanates obtained and their use
DE19534624A1 (en) * 1995-09-18 1997-03-20 Bayer Ag Blocked poly:isocyanate, used as crosslinker in stoving enamel or filler
JP3712295B2 (en) * 1996-04-12 2005-11-02 旭化成ケミカルズ株式会社 Block polyisocyanate composition and one-component thermosetting composition using the same
CN1174262C (en) 1999-06-24 2004-11-03 日本Arc株式会社 Coated article
US6891012B2 (en) 2003-05-23 2005-05-10 Bayer Materialscience Llc Powder coatings produced with crosslinkers capable of curing at low temperatures and coated articles produced therefrom
DE102008063085A1 (en) 2008-12-24 2010-07-01 Basf Coatings Ag coating composition

Also Published As

Publication number Publication date
DK449474A (en) 1975-04-28
GB1442024A (en) 1976-07-07
IT1018973B (en) 1977-10-20
NL7411118A (en) 1975-02-25
DE2342603C3 (en) 1981-09-10
SE7410681L (en) 1975-02-24
LU70771A1 (en) 1975-06-11
BE819042A (en) 1975-02-21
DE2342603A1 (en) 1975-03-06
DE2342603B2 (en) 1980-10-16
FR2241573B1 (en) 1979-01-05
IE39672L (en) 1975-02-23
FR2241573A1 (en) 1975-03-21

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