HIGH-QUALITY POLYMER FOAM FROM FLUORINATED ALKENE FOAMING AGENTS Russian patent published in 2012 - IPC C08J9/14 C08J9/12 C08J9/16 B29C44/34 B29C44/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining heat-insulating polymer foam, heat-insulating polymer foam and a method of using heat-insulating polymer foam. The polymer foam contains 95 wt % or more of one or more polymers selected from a group consisting of styrene and a styrene-acrylonitrile copolymer, and additionally contains one or more foaming agents from a specific group of fluorinated alkenes in concentration ranging from 0.03 mol to 0.3 mol per 100 g of polymer foam. The method of obtaining heat-insulating polymer foam involves a step for preparing a foamed composition and expanding the foamed composition to form polymer foam. The method of using the heat-insulating polymer foam involves a step for placing the polymer foam between two surfaces, where on of the two surfaces is at a different temperature from the other.

EFFECT: used foaming agents have zero ozone depletion potential (ODP), global warming potential (GWP) less than 50, solubility in alkyenyl aromatic polymers, which enables to obtain high-quality polymer foam which provides prolonged, efficient heat insulation.

10 cl, 4 tbl, 6 ex