DEVICE FOR PREPREG PRODUCTION Russian patent published in 2010 - IPC C08J5/24 

FIELD: paper industry.

SUBSTANCE: roll of polymer paper is installed on unit of paper unwinding 1. Beginning of paper roll is pulled through transport rolls 3, lubricating roll 4, impregnation bath 5, rolling mangles 6, floating roll 7, pulling roll 8, driving roll 9, and fixed on winding unit 10. After stabilisation of device technological parametres paper is pulled through working path of device. Paper is wound from winding unit 1, goes along lubricating roll 4 through bath 5 and enters thermal block 12, where organic dissolvents are removed, and binding coating is polymerised. Paper that has passed through thermal unit with coating goes through a system of pulling rolls and arrives to winding unit 10. Invention makes it possible to produce prepregs from aramid papers of Nomex® and Kevlar® type with various thickness and various thickness of binder coating and its extent of polymerisation.

EFFECT: invention may be used to produce prepregs of aramid papers applied to create light fillers of multilayer aviation panels.

2 dwg