Resin synthetic especially for coating of disks of recording phonographic comprising a photograph or a decor

摘要

The invention relates to the industry of the disks gramophone illustrated. / p & & p & is prepare a material of the surface to disks gramophone by subjecting a powder of a vinyl resin containing a stabilizer, a treatment of the mixture when hot, crushing of the molten product, for cooling the product to form a mass which is granulated, freezing of the granules in the liquid nitrogen and grinding of the granules frozen in order to form a powder which is applied on a disk, which is heated under pressure in order to form a film on which will form the fine groove. / p & & p & application for the manufacture of recording discs having on their surface a photograph or image, a good resistance to wear and a noise signal -