PROCESS OF PRODUCTION OF HEAT-RESISTANT EPOXIDE COMPOUND FOR GLASS-FIBER MATERIALS Russian patent published in 2007 - IPC C08L63/02 C08G59/14 C09K3/10 C09D5/34 C09D163/00 

FIELD: polymer materials in rocket engineering.

SUBSTANCE: invention concerns process of producing heat-resistant epoxide compound for reinforced glass-fiber bodies used in fabrication of rigid armoring housings for removable charges of solid-fuel rocket engines. Compound is prepared by mixing 28-32% of epoxide dian resin having molecular mass 390-430, 28-32% of epoxide dian resin having molecular mass 480-540, and 14-18% of trimethylolpropane/epichlorohydrin condensation product, mixing being effected for 15-30 min at 80-100° C and stirrer rotation speed 125-158 rpm. When temperature drops to 60-80° C, mixture is supplemented by 24-27% of epoxycyanurate resin and stirred for further 15-30 min at stirrer rotation speed 125-158 rpm under residual pressure not higher than 20 mm Hg.

EFFECT: improved mechanical, adhesion, elastic, and working characteristics at higher vitrification temperature (135° C).

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