NL7700271A - Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation - Google Patents

Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation

Info

Publication number
NL7700271A
NL7700271A NL7700271A NL7700271A NL7700271A NL 7700271 A NL7700271 A NL 7700271A NL 7700271 A NL7700271 A NL 7700271A NL 7700271 A NL7700271 A NL 7700271A NL 7700271 A NL7700271 A NL 7700271A
Authority
NL
Netherlands
Prior art keywords
nco
articles
gps
trimerisation
contg
Prior art date
Application number
NL7700271A
Other languages
Dutch (nl)
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
Priority to NL7700271A priority Critical patent/NL7700271A/en
Publication of NL7700271A publication Critical patent/NL7700271A/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
    • C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
    • 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
    • C08G18/08—Processes
    • C08G18/09—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
    • C08G18/092—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture oligomerisation to isocyanurate groups

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)

Abstract

The organic polyisocyanates (I) are polymerised in closed moulds in the presence of cpds. (II) causing NCO-gp. trimerisation. Organic cpds. (III) contg. gps. reactive with NCO gps. are opt. present, provided equiv. ratio NCO :NCO-reactive gps. is 1:0.8 (1:0.6) esp. 1:0.01. If (III) are present, polymerisation is accompanied by an NCO-addn. reaction. Articles can be used for prodn. of furniture; in building-, electrical and car industries; for technical components; articles for domestic and everyday use; for sanitary ware and for sports. Strong articles are prepd. in very short times, e.g. 0.25-2.5 min., and require no after-treatment. Process can be used on a large, industrial Pref. (I) are diphenylmethan diisocyanates contg. carbodiimide and/or urethane gps., urethane gp-contg. polyisocyanate, toluene diisocyanates and phosgenation products of aniline/HCHO condensates. Catalysts (II) may be alkali acetates and phenolates and esp. 2,4,6 tris-(di-methylaminomethyl)-phenol.
NL7700271A 1977-01-12 1977-01-12 Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation NL7700271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7700271A NL7700271A (en) 1977-01-12 1977-01-12 Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7700271A NL7700271A (en) 1977-01-12 1977-01-12 Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation

Publications (1)

Publication Number Publication Date
NL7700271A true NL7700271A (en) 1978-07-14

Family

ID=19827762

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7700271A NL7700271A (en) 1977-01-12 1977-01-12 Quick, massive organic polyisocyanate articles prodn. - in closed moulds using catalysts causing isocyanate gp. trimerisation

Country Status (1)

Country Link
NL (1) NL7700271A (en)

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BT A document has been added to the application laid open to public inspection
A85 Still pending on 85-01-01
BV The patent application has lapsed