AIRTIGHT ORGANOPLASTIC PREPREG AND ARTICLE MADE FROM SAID PREPREG Russian patent published in 2010 - IPC C08J5/24 B32B27/12 B32B5/24 

FIELD: chemistry.

SUBSTANCE: invention relates to making construction polymer composite materials based on fiber reinforcement made from aramid fibres and polymer binders, which can be used as airtight cladding of honeycomb panels, as well as monolithic components in machine- and ship building and aviation industries. The prepreg contains the following in wt %: epoxy-rubber, phenol-rubber or epoxy-sulfonic binder- 40-60 and aramide filler - sateen, twill or linen weave fabric made from SVM and Rusar fibres with linear density of 14.3 tex and 29.4 tex - 40-60. The article is made from the prepreg through moulding.

EFFECT: prepreg has good elastic and strength properties, in particular flaking strength of 1,1-1,3 N/cm and ultimate flexural strength of 520-560 MPa.

2 cl, 5 ex, 2 tbl