METHOD OF FORMING MICRORELIEF ON SURFACE OF POLYMER ARTICLES (VERSIONS) Russian patent published in 2011 - IPC C08J5/18 

FIELD: chemistry.

SUBSTANCE: invention relates to making articles with an elongated shape with a regular microrelief on the surface, which can be used as elements of optoelectronic devices and information display systems. In the first version, articles with an elongated shape made from glass-like non-oriented or partially oriented polymer are treated with low-temperature plasma. The articles are then heated to temperature higher than the glass transition point (T_g). The articles are stretched in at least one direction. The articles are cooled to temperature lower than T_g of the polymer while fixing the size of the article in the direction of stretching. In the second version, the non-oriented or partially oriented article made from amorphous glass-like or polycrystalline polymer is treated with low-temperature plasma. The article is stretched at temperature lower than T_g for the amorphous polymer and lower than melting point (T_m) for the polycrystalline polymer. In the third version, an article in high-elastic state of the polymer is treated with low-temperature plasma. The article is stretched while fixing the size of the stretched article in the direction of stretching. In the fourth version, an article made from amorphous or polycrystalline polymer is used. The article is stretched at temperature higher than T_g for the amorphous polymer and lower than T_m for the polycrystalline polymer. The article is treated with low-temperature plasma while fixing the size of the article with subsequent removal of the fixing.

EFFECT: easier formation of a regular microrelief on the surface of polymer articles.

8 cl, 7 dwg, 4 ex