POLYESTER BINDER AND ARTICLE BASED THEREON Russian patent published in 2017 - IPC C08L31/08 C08J5/24 C08J5/04 C08K3/00 C08K5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to production of polymer binder based on polyester oligomer with filler in form of short fibres for polymer composite materials, obtained from sheet semi-finished product (SMC-prepreg) by direct pressing, which can be used in making cost-efficient parts, vehicle interior and body parts. Polyester binder contains, wt%: isophthalic unsaturated polyester resin – 25.0–40.0, curing agent solution – 2.0–6.5, inhibitor solution – 0.0001–0.1000, thermoplastic solution – 0.2–6.5, surfactant – 0.15–3.00, aluminium hydroxide – 27.0–42.0, magnesium oxide – 0.05–0.80, inorganic mineral filler – 15.0–30.0. SMC-prepreg contains said polyester binder and chopped fibre filler with following ratio, wt%: polyester binder – 75.0–85.0, chopped fibre filler – 15.0–25.0.

EFFECT: technical result is creating cost-effective articles from polymer composite materials with high resistance to propagation of fire and high ultimate static bending strength and impact strength.

6 cl, 6 tbl