POLYMER COMPOSITION AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2006 - IPC C08L63/10 C08L63/02 C09K3/10 

FIELD: polymer materials.

SUBSTANCE: invention relates to preparation of polymer compositions suitable for sealing electrical articles and provides polymer composition including, wt parts: electrical insulation compound (KP-303B) based on oligoether acrylate and unsaturated epoxy ether resin, 90-11; siloxane low-molecular weight rubber, 9-11; catalyst, 0.3-0.5; powderlike quartz, 60-70; alumina, 60-70; and ground talk, 30-35. Claimed composition is prepared by adding preliminarily prepared powderlike quartz, alumina, and ground talk to mixture of : electrical insulation compound, low-molecular weight rubber, and catalyst followed by evacuation and stepwise curing of resulting mixture. Composition is suitable to fill high-voltage metal-loaded objects.

EFFECT: increased electrical strength of filled objects after temperature cycling and increased maximum operation temperature to 200°C.

2 cl, 2 tbl