RESIN COMPOSITION AND MEMBRANE STRUCTURE CONTAINING RESIN COMPOSITION Russian patent published in 2021 - IPC C08K5/13 C08K5/1575 C08K5/523 C08L23/08 C08L27/12 

FIELD: chemistry.

SUBSTANCE: invention relates to resin composition of copolymer of ethylene and chlorotrifluoroethylene for molding containing from 0.01 to 1.0 wt.% of at least one antioxidant based on bisphenol selected from 3,9-bis[2-[3-(tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy)]-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5,5]undecane, 4,4՛-butylidene-bis(3-methyl-6-tert-butylphenol) and 2,2՛-bis(4-hydroxyphenyl)propane and from 0.01 to 1.0 wt.% of at least one phosphorus-containing antioxidant selected from 6-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra(tert-butyl)dibenzo[d,f]-[1,3,2]dioxaphosphepine and 3,9-bis(2,6-di(tert-butyl)-4-methyl-phenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecane. A membrane structure, a sheet, a front or rear sheet for solar elements, and agricultural membrane containing the specified resin composition are also proposed.

EFFECT: proposed resin composition is perfect in terms of transparency and resistance to yellowing over a long period of time, and it emits less acidic gases, for example when it is extruded in a molten state at high temperature.

7 cl, 7 tbl, 31 ex