METHOD TO PRODUCE HEAT INSULATION MATERIAL FROM FOAM POLYETHYLENE WASTES Russian patent published in 2011 - IPC C08J11/04 C08J9/228 C08L23/04 B29C44/30 

Abstract RU 2421481 C1

FIELD: construction.

SUBSTANCE: method includes grinding of wastes into rectangular fractions with side size of 5-10 mm and their placement between two moving meshy tapes of a conveyor. Afterwards the ground wastes are heated to the temperature of 120-130°C, then passed between cooling chambers, and a continuous tape is formed from heated mass with its simultaneous foaming in area of reduced air pressure. The produced material may be duplicated.

EFFECT: method makes it possible to simplify waste processing technology, to reduce costs by provision of waste-free production of heat-insulating material in the form of a continuous tape, from which units of the specified length are cut.

1 dwg, 1 tbl, 2 ex

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RU 2 421 481 C1

Authors

Vajnberg Iosif Abramovich

Pleshanov Vitalij Petrovich

Dates

2011-06-20Published

2009-11-26Filed