POLYMER BINDING AGENT FOR COVERS PRONE TO SWELLING DURING HEATING Russian patent published in 2007 - IPC C09D5/18 C08L25/16 C08L33/06 

FIELD: copolymers meant for usage in polymer binding agents for covers prone to swelling during heating.

SUBSTANCE: copolymer is described for usage in binding agent or as polymer binding agent in covers prone to swelling during heating, including a mixture of Newton copolymer and network copolymer, selected from a group including thixotropic and pseudo-plastic copolymers, while aforementioned Newton and network copolymers consist of links of substituted styrene and substituted acrylate and contain links of at least p-methylstyrene and 2-ethylhexylacrylate, with grammolecule ratio of p-methylstyrene and 2-ethylhexylacrylate ranging from 100/0 to 50/50. Also described is the cover prone to swelling during heating and method for producing the same, which cover includes polymer binding agent, foam-forming substances, carbon-forming substances and other normally used admixtures, featuring aforementioned copolymer as polymer binding agent.

EFFECT: optimized creation of coal and improved isolating properties of cover.

3 cl, 2 tbl, 8 dwg, 4 ex