Epoxy-imidazole adducts as curing agents for epoxy resins

Patent · Tue Sep 04 04:00:00 EDT 1973

OSTI ID:6540333

klaren, C H.J.; Krak, H; Jeanno, F

A method is described for the preparation of epoxy-imidazole adducts which are excellent curing agents and accelerators for the anhydride curing of polyepoxides to produce insoluble, infusible compositions. A process also is described for converting a polyepoxide having more than one epoxy group molecule to an insoluble infusible product. It consists of curing the polyepoxide at elevated temperature with an adduct of an epoxy compound (monoepoxides or polyepoxides) and an imidazole compound having a secondary amino group in the imidazole ring. Pulverulent mixtures of these solid epoxy-imidazole adducts and solid epoxy resins, optionally, in combination with other curing agents such as amines, anhydrides, etc., have excellent storage stability and rapid cure. (11 claims)

• Assignee: Shell Oil Co.
• Patent Number(s): US 3756984
• OSTI ID: 6540333
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360401* -- Polymers & Plastics-- Preparation & Fabrication-- (-1987)
ANHYDRIDES
AZOLES
CURING
EPOXIDES
HEATING
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
MOLECULAR STRUCTURE
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POLYMERS
RESINS
SAND CONSOLIDATION
WELL COMPLETION
WELLS