HIGHLY STRONG AND ELASTIC PLASTIC PRODUCTS Russian patent published in 2008 - IPC C08J5/00 C08L61/28 C08G12/32 

FIELD: chemistry.

SUBSTANCE: invention relates to plastic products and method of their production and can be used in transport, electro-technical, electronic industry and machine-building. Plastic product represents sewn moulded material or semi-product based on interpenetrating structures, containing from 10-50 wt %, of at least, one sewn thermoplastic and 9-50 wt %, of at least one sewn etherificated melamine-formaldehyde resin, which has average molecular weight from 1500 to 200 000 and molar ratio of melamine/formaldehyde from 1:1.5 to 1:4. It is obtained from said mixture of thermoplastics, containing from 0.1 to 2% of thermally degrading initiator of free-radical polymerisation, and etherificated melamine-formaldehyde resins, which contain from 0.1 to 2% of hardener. Plastic product is produced by moulding and sewing of mixture melts by method of extrusion. First, melt of thermoplastics mixture and etherificated melamine-formaldehyde resins is prepared, then hardener and initiator of free-radical polymerisation are introduced into mixture. Further mixture is granulated. Granules are melted and processed in presses, extruders or machines or moulding under pressure, obtaining semi-product.

EFFECT: increase of strength properties and elasticity of plastic products.

24 cl, 7 ex