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1. WO1996004328 - CURING AGENTS FOR EPOXY RESINS

Publication Number WO/1996/004328
Publication Date 15.02.1996
International Application No. PCT/US1995/009140
International Filing Date 28.07.1995
Chapter 2 Demand Filed 06.11.1995
IPC
C08G 59/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
59Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
C08G 59/50 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
59Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
40characterised by the curing agents used
50Amines
CPC
C08G 59/184
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
59Polycondensates containing more than one epoxy group per molecule
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; ; e.g. general methods of curing
182using pre-adducts of epoxy compounds with curing agents
184with amines
C08G 59/5006
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
59Polycondensates containing more than one epoxy group per molecule
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; ; e.g. general methods of curing
40characterised by the curing agents used
50Amines
5006aliphatic
C08G 59/5026
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
59Polycondensates containing more than one epoxy group per molecule
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; ; e.g. general methods of curing
40characterised by the curing agents used
50Amines
5026cycloaliphatic
Applicants
  • HENKEL CORPORATION [US/US]; Suite 150 140 Germantown Pike Plymouth Meeting, PA 19462, US
Inventors
  • SHAH, Shailesh; US
  • MOON, Robert, M.; US
Agents
  • WOOD, John, Daniel; Henkel Corporation Suite 150 140 Germantown Pike Plymouth Meeting, PA 19462, US
Priority Data
08/286,16004.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CURING AGENTS FOR EPOXY RESINS
(FR) AGENTS DE DURCISSEMENT DESTINES A DES RESINES EPOXY
Abstract
(EN)
A method of curing an epoxy resin comprising mixing an epoxy resin with a curing agent is provided. The curing agent is selected from the group consisting of (i) a mixture consisting essentially of 1,2-diaminocyclohexane and an aliphatic polyamine (preferably at a molar ratio of 1,2-diaminocyclohexane to aliphatic polyamine of from about 1:1 to about 16:1, preferably about 2.5:1 to about 6:1 and more preferably about 3:1 to about 5:1) and (ii) the reaction product of reactants consisting essentially of an amine component consisting essentially of 1,2-diaminocyclohexane and an aliphatic polyamine and an epoxide component. The epoxide component has an epoxy functionality greater than one and is preferably a diglycidyl ether of an aromatic diol having an average degree of oligomerization of less than about 3.5, preferably less than about 1.5, and preferably derived from an alkyl bis-phenol, e.g. bisphenol A. The ratio of primary amine equivalents of said amine component to the total epoxide equivalents of said epoxide component is greater than one, i.e. the molar equivalents of primary amine groups of said amine component are in excess of the molar equivalents of epoxide groups, e.g. a ratio of from about 1.5:1 to 50:1, preferably from about 3:1 to about 20:1, more preferably from about 6:1 to about 15:1.
(FR)
Procédé de durcissement d'une résine époxy consistant à mélanger celle-ci avec un agent de durcissement choisi dans le groupe comprenant (i) un mélange composé essentiellement d'1,2-diaminocyclohexane et d'une polyamine aliphatique (de préférence selon un rapport molaire de 1,2-diaminocyclohexane et de polyamine aliphatique compris entre environ 1:1 et environ 16:1, de préférence entre environ 2,5:1 et environ 6:1 et mieux encore entre environ 3:1 et environ 5:1) et (ii) le produit de réaction d'agents de réaction comprenant essentiellement un constituant amine comportant principalement 1, 2-diaminocyclohexane, une polyamine aliphatique, ainsi qu'un constituant époxyde. Ce dernier possède une fonctionnalité époxy supérieure à un et est, de préférence, un éther diglycidyle d'un diol aromatique qui possède un degré moyen d'oligomérisation inférieur à environ 3,5, préférablement inférieur à 1,5 et est dérivé d'un bis-phénol d'alkyle tel que le bisphénol A. Le rapport entre les équivalents d'amines primaires de ladite amine et les équivalents d'époxydes totaux dudit époxyde est supérieur à un, c'est-à-dire que les équivalents molaires des groupes amine primaire dudit constituant amine sont supérieurs aux équivalents molaires des groupes époxyde, par exemple, dans un rapport de l'ordre d'environ 1,5:1 à 50:1, de préférence d'environ 3:1 à environ 20:1, et mieux encore environ 6:1 à environ 15:1.
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