Rapid curing epoxide composition employing stable carbenium salt

Details Rapid curing epoxide composition employing stable carbenium salt Rapid curing epoxide composition employing stable carbenium salt

1984-11-07

1986-01-21

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523454, 523457, 524906, 528 88, 528 89, 528 91, 528 92, 528361, 528408, 528409, 528507, C08G 5918, C08G 5968

Patent

active

045658374

ABSTRACT:
Compounds with a plurality of oxirane functional groups can be cured to a fixture in less than one minute with a catalyst composition of a trityl or tropylium salt of a non-nucleophillic anion and a suitable solvent. Typical catalyst salts include trityl tetrafluoroborate, trityl hexachloroantimonate and tropylium hexafluorophosphate. The catalyst composition may conveniently be extended with liquid polymeric vehicles and acidic fillers.

REFERENCES:
patent: 4358578 (1982-11-01), Brownscombe
Journal of Polymer Science: Polymer Chemistry Edition, vol. 11, pp. 1825-1839; John Wiley & Sons, Inc., 1973; and vol. 14, pp. 2853-2866, 1976.

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