NIR-INERT SUBSTRATES CONTAINING BIS-OXODIHYDROINDOLYLENE BENZODIFURANONES Russian patent published in 2013 - IPC C08K5/1535 C08K5/3417 C09B57/00 C07D405/04 G06K7/10 B42D15/10 B44F1/12 C09D5/00 

FIELD: chemistry.

SUBSTANCE: infrared-inert substrates include moulded polymer articles, films, fibres, coatings and other organic and inorganic materials. The method of producing said substrates involves adding an effective amount of dispersed bis-oxodihydroindolylene benzodifuranone dye into the substrate or onto the surface of the substrate. The resultant substrates have reflecting power and are transparent for a large part of non-reflected near-infrared radiation. A wide application is disclosed - for casings of electronic devices, garden furniture, motor car, naval or aerospace parts, laminates, artificial leather, textile materials, optical fibres and in multicolour printing processes. The obtained substrates can be laser welded. Novel bis-oxodihydroindolylene benzodifuranone compounds are also disclosed.

EFFECT: low heat build-up and high value of substrates in many fields of application.

16 cl, 5 dwg, 46 ex