METHOD OF MAKING RUBBER-POLYMER ARTICLES Russian patent published in 2014 - IPC B29C35/02 C08J3/24 C08L21/00 C08L23/06 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and specifically to a method of making rubber-polymer articles designed for facing different surfaces and structures exposed to a constant load and wearing. The method of making rubber-polymer articles involves producing thermoplastic via combined thermal treatment of rubber and polyethylene and moulding. A mixture of polyethylene and rubber in amount of 35-45% and 55-65%, respectively, is used, the surface of which, during mixing, is treated with butyl alcohol in amount of 0-2.5% of the amount of the mixture. The mixture is then heated step by step while constantly stirring for 10 minutes at 240-250°C, then for 20 minutes to 235°C and then for 10 minutes to 220-235°C. The hot mixture is then used to mould articles in 3-5 minutes at pressure of 120-140 kg/cm², and the moulded articles are then cooled. Low-pressure polyethylene in granules is used. The rubber can be used in form of industrial rubber wastes.

EFFECT: invention enables to make articles of the required configuration with improved strength and friction characteristics.

5 cl, 3 tbl