POLYOLEFIN-BASE FOAM PLASTIC Russian patent published in 2008 - IPC C08L23/00 C08L23/26 C08J9/00 

FIELD: chemistry of polymers, chemical technology.

SUBSTANCE: invention relates to polyolefins-base foam plastic, method for its synthesis, using polyethylene wax and heat insulating material. Foam plastic comprises the following components: polyolefin, additives and at least one polyethylene wax wherein polyethylene is represented as oxidized homopolymer or oxidized copolymer. Above said polyethylene wax is used as agent regulating degree of increasing cells. Method for synthesis of foam plastic involves mixing polyolefin at high temperature with polyethylene wax and additives. Then this prepared mixture is extruded in the presence of a swelling agent. Invention provides preparing foam plastic without defects on surface, to enhance its cellular structure and properties and to make a heat insulting material from its showing high elasticity and flexibility.

EFFECT: improved preparing method, enhanced and valuable properties of material.

8 cl, 12 ex