Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1991-12-26
1995-02-28
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523468, 264137, 264236, 264347, 525423, 528 91, 528 99, 528103, 528124, 528407, C08L 6302
Patent
active
053938062
ABSTRACT:
An improved liquid matrix system for producing fibre-reinforced plastic components is disclosed. The system comprises (i) a liquid diglycidyl ether of a halogenated bisphenol or a mixture of liquid polyglycidyl ether bisphenols at least one of which being a polyglycidyl ether halogenated bisphenol; and (ii) a curing agent that is a sterically hindered aromatic diamine containing two primary amino groups attached to the carbon atoms in the aromatic nucleus, said carbon atoms not adjacent to each other, and at least one C.sub.1 to C.sub.6 linear or branched alkyl or thioalkyl substituent; the improvement comprising adding to said system a curing accelerator composition containing a mixture of a boron halide and an imidazole unsubstituted or substituted with at least one C.sub.1 to C.sub.6 linear or branched alkyl or C.sub.6 to C.sub.10 aryl.
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Encyclopedia of Chemical Technology, Third Edition, vol. 9, pp. 267, 278-280 and 288.
Wiggins, P. L., "Curing Acceleration of a Hindered Aromatic Diamine-Epoxy System", World of Composites-Focus '86, 41st Annual Conference, Reinforced Plastics/Composites Institute, The Society of Plastics Industry, Inc., Jan. 27-31, '86, Session 5-A, p. 106.
Albemarle Corporation
Hammond Richard J.
Jones Richard
Kight III John
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