Method of using thermosetting compositions with improved latency

Details Method of using thermosetting compositions with improved latency Method of using thermosetting compositions with improved latency

1998-07-16

1999-10-26

Neuder, William

Wells

Processes

Cementing, plugging or consolidating

528124, E21B 3314

Patent

active

059710713

ABSTRACT:
Thermosetting compositions with improved latency are obtained by addition of a molten aromatic polyamine type curing agent to a liquid epoxy resin followed by cooling the mixture, causing the curing agent to form a suspension of fine particles in the epoxy resin by recrystallisation thereof. The compositions obtained can be used for the manufacture of prepregs with high latency for their use in processes requiring intermediate steps at 80.degree. C. over several hours.

REFERENCES:
patent: 3427282 (1969-02-01), Sundholm
patent: 3481900 (1969-12-01), Sundholm
patent: 4003876 (1977-01-01), Warfield et al.
patent: 5151471 (1992-09-01), Qureshi et al.

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