METHOD OF PRODUCING FLEXIBLE HEAT-RETAINING MATERIAL Russian patent published in 2012 - IPC C09K5/14 B32B27/32 B32B37/10 

FIELD: chemistry.

SUBSTANCE: invention relates to production of flexible heat-retaining material which is meant for use in apparatus for protecting human respiratory organs from high temperatures, as well as components of protective clothing, packaging etc. When producing flexible heat-retaining material, a multilayer composition containing fibre paper between high-pressure and low-density polyethylene sheets is joined using a thermocompression technique.

EFFECT: disclosed simple method enables to obtain flexible heat-retaining material with phase transition temperature in the range of 40-100°C, having high heat capacity and heat conductivity.

3 dwg, 4 ex