JPS5659828A - Production of polyisocyanate - Google Patents

Production of polyisocyanate

Info

Publication number
JPS5659828A
JPS5659828A JP13521679A JP13521679A JPS5659828A JP S5659828 A JPS5659828 A JP S5659828A JP 13521679 A JP13521679 A JP 13521679A JP 13521679 A JP13521679 A JP 13521679A JP S5659828 A JPS5659828 A JP S5659828A
Authority
JP
Japan
Prior art keywords
polyisocyanate
tolylene diisocyanate
solvent
added
organic liquid
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.)
Pending
Application number
JP13521679A
Other languages
Japanese (ja)
Inventor
Namimasa Tashiro
Masatoshi Motomura
Nobuo Takahashi
Minoru Honma
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP13521679A priority Critical patent/JPS5659828A/en
Publication of JPS5659828A publication Critical patent/JPS5659828A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To obtain polyisocyanate being low in a conten of unreacted tolylene diisocyanate and useful as a curing agent for urethane paints, by isocyanurating tolylene diisocyanate in the presnce of a specified organic liquid.
CONSTITUTION: To a reaction vessel are added 100pts.wt. of (i) tolylene diisocyanate, 100W250pts.wt. of (ii) an organic liquid such as n-hexane, which is a good solvent for tolylene diisocyanate but is a non-solvent for the resulting polyisocyanate and (iii) a catalyst such as sodium methylate, and then isocyanuration is carried out at 30W60°C. To the reaction product obtained is added a good solvent for the resulting polyisocyanate, such as ethyl acetate, and then the non-solvent (ii) is distilled off under vacuum to obtain polyisocyanate having an unreacted tolylene diisocyanate content of below 1wt%.
EFFECT: Urethane paints employing the polyisocyanate have excellent drying properties.
COPYRIGHT: (C)1981,JPO&Japio
JP13521679A 1979-10-22 1979-10-22 Production of polyisocyanate Pending JPS5659828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13521679A JPS5659828A (en) 1979-10-22 1979-10-22 Production of polyisocyanate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13521679A JPS5659828A (en) 1979-10-22 1979-10-22 Production of polyisocyanate

Publications (1)

Publication Number Publication Date
JPS5659828A true JPS5659828A (en) 1981-05-23

Family

ID=15146540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13521679A Pending JPS5659828A (en) 1979-10-22 1979-10-22 Production of polyisocyanate

Country Status (1)

Country Link
JP (1) JPS5659828A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6936678B2 (en) 2002-07-03 2005-08-30 Bayer Aktiengesellschaft Process for preparing low-monomer-content TDI trimers
US6992186B2 (en) 2002-07-03 2006-01-31 Bayer Aktiengesellschaft Process for preparing low-monomer-content TDI trimers
WO2018076199A1 (en) * 2016-10-26 2018-05-03 Covestro Deutschland Ag Tdi based low-viscosity polyisocyanates with isocyanurate groups
WO2018105653A1 (en) * 2016-12-07 2018-06-14 旭化成株式会社 Polyisocyanate composition and coating composition
WO2020016116A1 (en) 2018-07-20 2020-01-23 Covestro Deutschland Ag Ionically hydrophilized polyisocyanates with improved drying
EP3599255A1 (en) 2018-07-23 2020-01-29 Covestro Deutschland AG Ionically hydrophilized polyisocyanates with improved drying
WO2020249472A1 (en) 2019-06-12 2020-12-17 Covestro Intellectual Property Gmbh & Co. Kg Method for the production of isocyanate-group terminated polyoxazolidinones
WO2020249471A1 (en) 2019-06-12 2020-12-17 Covestro Intellectual Property Gmbh & Co. Kg Method for the production of epoxy-group terminated polyoxazolidinones
EP3760658A1 (en) 2019-07-03 2021-01-06 Covestro Deutschland AG Resistant 2k-pur coatings
WO2021165125A1 (en) 2020-02-17 2021-08-26 Covestro Deutschland Ag Polyisocyanate preparations
EP3885388A1 (en) 2020-03-25 2021-09-29 Covestro Deutschland AG Polyisocyanate based polyaddition compounds with five-membered cyclic iminoether structural elements for the production of polyurethane plastics
EP4011927A1 (en) 2020-12-10 2022-06-15 Covestro Deutschland AG Composition comprising epoxy-functional oxazolidinone
WO2022122606A1 (en) 2020-12-10 2022-06-16 Covestro Deutschland Ag Composition comprising epoxy-functional oxazolidinone
EP4083100A1 (en) 2021-04-26 2022-11-02 Covestro Deutschland AG Method for the production of an isocyanate-group terminated polyoxazolidinone composition
WO2022228955A1 (en) 2021-04-26 2022-11-03 Covestro Deutschland Ag Method for the production of an isocyanate-group terminated polyoxazolidinone composition
EP4105251A1 (en) 2021-06-18 2022-12-21 Covestro Deutschland AG Crosslinkable compositions containing imine and / or aminal-forming components
WO2022263306A1 (en) 2021-06-18 2022-12-22 Covestro Deutschland Ag Aldehyde-blocked organic polyisocyanates
EP4108694A1 (en) 2021-06-21 2022-12-28 Covestro Deutschland AG Coating agent and coatings produced therefrom having improved soiling resistances and (self) cleaning properties
EP4108697A1 (en) 2021-06-21 2022-12-28 Covestro Deutschland AG Coating agent and coatings produced therefrom having improved soiling resistances and (self) cleaning properties
EP4198094A1 (en) 2021-12-20 2023-06-21 Covestro Deutschland AG Multilayer structure on metal substrates based on polyaspartate coatings
EP4265663A1 (en) 2022-04-21 2023-10-25 Covestro Deutschland AG Polyaspartate-based two-component coating compositions for the production of coatings having improved self-heating properties and low adhesion
EP4279522A1 (en) 2022-05-17 2023-11-22 Covestro Deutschland AG Water-dispersible polyisocyanates with aldehyde blocking and aqueous compositions obtainable therefrom

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6936678B2 (en) 2002-07-03 2005-08-30 Bayer Aktiengesellschaft Process for preparing low-monomer-content TDI trimers
US6992186B2 (en) 2002-07-03 2006-01-31 Bayer Aktiengesellschaft Process for preparing low-monomer-content TDI trimers
WO2018076199A1 (en) * 2016-10-26 2018-05-03 Covestro Deutschland Ag Tdi based low-viscosity polyisocyanates with isocyanurate groups
WO2018105653A1 (en) * 2016-12-07 2018-06-14 旭化成株式会社 Polyisocyanate composition and coating composition
CN110050008A (en) * 2016-12-07 2019-07-23 旭化成株式会社 Polyisocyantates composition and coating composition
CN110050008B (en) * 2016-12-07 2022-07-15 旭化成株式会社 Polyisocyanate composition and coating composition
WO2020016116A1 (en) 2018-07-20 2020-01-23 Covestro Deutschland Ag Ionically hydrophilized polyisocyanates with improved drying
EP3599255A1 (en) 2018-07-23 2020-01-29 Covestro Deutschland AG Ionically hydrophilized polyisocyanates with improved drying
WO2020249471A1 (en) 2019-06-12 2020-12-17 Covestro Intellectual Property Gmbh & Co. Kg Method for the production of epoxy-group terminated polyoxazolidinones
WO2020249472A1 (en) 2019-06-12 2020-12-17 Covestro Intellectual Property Gmbh & Co. Kg Method for the production of isocyanate-group terminated polyoxazolidinones
EP3760658A1 (en) 2019-07-03 2021-01-06 Covestro Deutschland AG Resistant 2k-pur coatings
WO2021001270A1 (en) 2019-07-03 2021-01-07 Covestro Intellectual Property Gmbh & Co. Kg Resistant 2k-pur coatings
WO2021165125A1 (en) 2020-02-17 2021-08-26 Covestro Deutschland Ag Polyisocyanate preparations
EP3885388A1 (en) 2020-03-25 2021-09-29 Covestro Deutschland AG Polyisocyanate based polyaddition compounds with five-membered cyclic iminoether structural elements for the production of polyurethane plastics
EP3885387A1 (en) 2020-03-25 2021-09-29 Covestro Deutschland AG Polyisocyanate-based polyaddition compounds having five-membered cyclic iminoether structural elements
EP4011927A1 (en) 2020-12-10 2022-06-15 Covestro Deutschland AG Composition comprising epoxy-functional oxazolidinone
WO2022122606A1 (en) 2020-12-10 2022-06-16 Covestro Deutschland Ag Composition comprising epoxy-functional oxazolidinone
EP4083100A1 (en) 2021-04-26 2022-11-02 Covestro Deutschland AG Method for the production of an isocyanate-group terminated polyoxazolidinone composition
WO2022228955A1 (en) 2021-04-26 2022-11-03 Covestro Deutschland Ag Method for the production of an isocyanate-group terminated polyoxazolidinone composition
WO2022263306A1 (en) 2021-06-18 2022-12-22 Covestro Deutschland Ag Aldehyde-blocked organic polyisocyanates
EP4105251A1 (en) 2021-06-18 2022-12-21 Covestro Deutschland AG Crosslinkable compositions containing imine and / or aminal-forming components
EP4108694A1 (en) 2021-06-21 2022-12-28 Covestro Deutschland AG Coating agent and coatings produced therefrom having improved soiling resistances and (self) cleaning properties
EP4108697A1 (en) 2021-06-21 2022-12-28 Covestro Deutschland AG Coating agent and coatings produced therefrom having improved soiling resistances and (self) cleaning properties
WO2022268744A1 (en) 2021-06-21 2022-12-29 Covestro Deutschland Ag Coating agents and coatings that are obtainable therefrom and have improved resistance to soiling and (self-)cleaning properties
EP4198094A1 (en) 2021-12-20 2023-06-21 Covestro Deutschland AG Multilayer structure on metal substrates based on polyaspartate coatings
EP4265663A1 (en) 2022-04-21 2023-10-25 Covestro Deutschland AG Polyaspartate-based two-component coating compositions for the production of coatings having improved self-heating properties and low adhesion
EP4279522A1 (en) 2022-05-17 2023-11-22 Covestro Deutschland AG Water-dispersible polyisocyanates with aldehyde blocking and aqueous compositions obtainable therefrom

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