IE39531B1 - Process for the preparation of solutions of polyisocyanates - Google Patents

Process for the preparation of solutions of polyisocyanates

Info

Publication number
IE39531B1
IE39531B1 IE1357/74A IE135774A IE39531B1 IE 39531 B1 IE39531 B1 IE 39531B1 IE 1357/74 A IE1357/74 A IE 1357/74A IE 135774 A IE135774 A IE 135774A IE 39531 B1 IE39531 B1 IE 39531B1
Authority
IE
Ireland
Prior art keywords
isocyanurate
polyisocyanate
solutions
solution
ethyl acetate
Prior art date
Application number
IE1357/74A
Other versions
IE39531L (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
Priority claimed from DE19742414413 external-priority patent/DE2414413C3/en
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of IE39531L publication Critical patent/IE39531L/en
Publication of IE39531B1 publication Critical patent/IE39531B1/en

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
    • 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
    • C08G18/8064—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with monohydroxy compounds
    • 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
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates
    • 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

Landscapes

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

Abstract

1458564 Polyisocyanate solutions BAYER AG 24 June 1974 [27 June 1973 26 March 1974] 27849/74 Heading C3R A process for the preparation of a physiologically harmless solution of a polyisocyanate having an isocyanurate structure, from which a two-component polyurethane lacquer with improved pot-life can be prepared, comprises reacting a solution in a lacquer solvent of a polyisocyanate having an isocyanurate structure, which solution contains free monomeric 2,4- and/or 2,6-diisocyanato-toluene which is free from isocyanurate groups, preferably in an amount of from 0À7 to 4% wt., based on the solid isocyanurate polyisocyanate, with an alcohol of the formula R-OH, preferably in a 0À1 to 10 times molar quantity based on the said diisocyanate, where R represents an aliphatic hydrocarbon group, preferably containing from 1-18 carbon atoms, which may be interrupted by ether oxygen bridges, a cycloaliphatic hydrocarbon group preferably containing 5-10 carbon atoms or an araliphatic hydrocarbon group preferably containing 7-14 carbon atoms. The solutions used are generally 10-80% wt. solutions of isocyanurate polyisocyanates obtained by partial polymerization of the NCO groups of 2,4- and optionally 2,6- diisocyanatotoluene, or by polymerization of the corresponding uretdiones. The preferred products are 10-80% wt. solutions of triisocyanato - trimethyl - triphenyl - isocyanurateisomers or their higher homologues containing more than one isocyanurate ring in ethyl acetate, and contain less than 0À7% wt. of diisocyanatotoluene, based on solid isocyanurate polyisocyanate. The isocyanurate polyisocyanate in these preferred products generally contain 8-18% wt. of isocyanate groups. In the example a 50% wt. solution of an isocyanurate polyisocyanate prepared from 3,3<SP>1</SP>-diisocyanato- 4,4<SP>1</SP>-dimethyldiphenyluretdione in anhydrous ethyl acetate by catalysis with tri-n-butylphosphine and containing 1À5% wt. free tolylene diisocyanate is reacted with either isopropanol or lauryl alcohol to produce polyisocyanate solutions containing 0À62% and 0À58% wt. respectively of free tolylene diisocyanate. The resulting solutions are diluted with ethyl acetate and made up into 2-component polyurethane lacquers with a polyester prepared from phthalic acid, adipic acid and trimethylolpropane. Uses.-Lacquers for wood and paper. [GB1458564A]
IE1357/74A 1973-06-27 1974-06-26 Process for the preparation of solutions of polyisocyanates IE39531B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2332567 1973-06-27
DE19742414413 DE2414413C3 (en) 1974-03-26 1974-03-26 Use of solutions of polyisocyanates with an isocyanurate structure in two-component polyurethane paints

Publications (2)

Publication Number Publication Date
IE39531L IE39531L (en) 1974-12-27
IE39531B1 true IE39531B1 (en) 1978-10-25

Family

ID=25765384

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1357/74A IE39531B1 (en) 1973-06-27 1974-06-26 Process for the preparation of solutions of polyisocyanates

Country Status (9)

Country Link
JP (1) JPS5722054B2 (en)
DK (1) DK343674A (en)
FR (1) FR2235147B1 (en)
GB (1) GB1458564A (en)
IE (1) IE39531B1 (en)
IT (1) IT1016168B (en)
LU (1) LU70421A1 (en)
NL (1) NL7408473A (en)
SE (1) SE7408494L (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845514A1 (en) * 1978-10-19 1980-04-30 Bayer Ag ISOCYANATE MIXTURE AND ITS USE AS BINDING AGENT IN ONE-COMPONENT LACQUERS
FR2522667A1 (en) * 1982-03-04 1983-09-09 Rhone Poulenc Spec Chim PROCESS FOR THE PREPARATION OF POLYISOCYANURATE POLYISOCYANATES BY CATALYTIC CYCLOTRIMERISATION OF POLYISOCYANATES
DE3303221A1 (en) * 1983-02-01 1984-08-02 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING POLYISOCYANATES WITH ISOCYANURATE GROUPS, THE COMPOUNDS AVAILABLE BY THIS METHOD AND THE USE THEREOF FOR PRODUCING POLYURETHANES
DE3339579A1 (en) * 1983-11-02 1985-05-09 Bayer Ag, 5090 Leverkusen NEW ISOCYANATO ISOCYANURATE, A METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS ISOCYANATE COMPONENT IN POLYURETHANE PAINTS
FR2572402B1 (en) * 1984-10-30 1988-03-11 Rhone Poulenc Spec Chim PROCESS FOR THE PREPARATION OF POLYISOCYANATES POLYISOCYANURATES BY CATALYTIC CYCLOTRIMERIZATION OF POLYISOCYANATES
DE3815237A1 (en) * 1988-05-05 1989-11-16 Bayer Ag METHOD FOR THE PRODUCTION OF MODIFIED POLYISOCYANATES, THE POLYISOCYANATES OBTAINED BY THIS METHOD AND THE USE THEREOF AS A Binder or Binder Component
DE3928503A1 (en) * 1989-08-29 1991-03-07 Bayer Ag METHOD FOR PRODUCING SOLUTIONS OF POLYISOCYANATES CONTAINING ISOCYANURATE GROUPS IN LACQUER SOLVENTS AND THE USE THEREOF
US4999213A (en) * 1990-02-21 1991-03-12 E. I. Du Pont De Nemours And Company Monofunctional alcohols to prevent gelation in two component isocyanate coatings
DE4140660A1 (en) * 1991-12-10 1993-06-17 Bayer Ag POLYISOCYANATES HAVING ETHER AND URETHANE GROUPS, A METHOD FOR THE PRODUCTION AND THEIR USE
DE19523657A1 (en) * 1995-06-29 1997-01-02 Bayer Ag Process for the preparation of solutions of polyisocyanates containing isocyanurate groups with a reduced residual monomer content and their use
DE10103027A1 (en) 2001-01-24 2002-07-25 Bayer Ag Adhesion promoter, e.g. for improving adhesion of silicon-based protective coatings to polymeric substrates, comprising two-component polyurethane binder based on alkoxysilane-modified polyisocyanate
DE10229780A1 (en) 2002-07-03 2004-01-15 Bayer Ag Process for the preparation of low-monomer TDI trimer
DE10229781A1 (en) 2002-07-03 2004-01-22 Bayer Ag Process for the preparation of low-monomer TDI trimer
DE10328663A1 (en) 2003-06-26 2005-01-13 Bayer Materialscience Ag Polyisocyanate-modified polycarboxylic acids
DE10334723A1 (en) 2003-07-30 2005-02-24 Bayer Materialscience Ag New binder combination for highly resistant plastic coatings
DE102011088149A1 (en) 2011-12-09 2013-06-13 Evonik Industries Ag A coated composite comprising a composite material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115479A (en) * 1955-12-08 1963-12-24 R oconr
FR1304301A (en) * 1960-10-20 1962-09-21 Ici Ltd Process for manufacturing organic isocyanate polymers
GB1050257A (en) * 1964-11-16

Also Published As

Publication number Publication date
JPS5069198A (en) 1975-06-09
IE39531L (en) 1974-12-27
FR2235147A1 (en) 1975-01-24
NL7408473A (en) 1974-12-31
DK343674A (en) 1975-02-24
JPS5722054B2 (en) 1982-05-11
SE7408494L (en) 1974-12-30
IT1016168B (en) 1977-05-30
FR2235147B1 (en) 1978-05-26
GB1458564A (en) 1976-12-15
LU70421A1 (en) 1975-03-27

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