Chromates and and (G03F7/004)

ethod of image recording // 2534814
FIELD: physics, optics.SUBSTANCE: invention relates to the field of optical instrument making and the method of image recording. The method includes formation of a light sensitive layer on a substrate from nanodiamond film and radiation of a nanodiamond film with focused radiation of laser according to the specified program with the purpose to produce a required image. The image on the nanodiamond film arises due to blackening of radiated sections of the film as a result of conversion of nanodiamond particles into amorphous carbon in the field of focused laser radiation.EFFECT: technical result consists in simplification of the recording method and reduction of power inputs.3 cl, 3 dwg

Information carrier // 2533821
FIELD: chemistry.SUBSTANCE: invention relates to information carriers. Claimed is an information carrier, successively including a substrate, selected from a polymer-covered paper, synthetic paper and plastic films, the first ink-receiving layer and the second ink-receiving layer, with the ink-receiving layer containing at least one substance, selected from aluminium oxide, aluminium oxide hydrate and highly dispersive silicon oxide, polyvinyl alcohol and boric acid, with a weight ratio of the boric acid and polyvinyl alcohol content in the first ink-receiving layer constituting 2.0 wt % or more and 7.9 wt % or less, with the second ink-receiving layer containing highly-dispersive silicon dioxide, polyvinyl alcohol and boric acid, and a weight ratio of the boric acid and polyvinyl alcohol content in the second ink-receiving layer constitutes 10.0 wt % or more and 30.0 wt % or less.EFFECT: claimed carrier makes it possible to prevent cracking after the application of ink-receiving layers, possesses the high ink-absorbing ability and a resistance to cracking in bending.6 cl, 4 tbl, 68 ex

Light-sensitive negative polymer composition // 2533490
FIELD: physics.SUBSTANCE: disclosed is a light-sensitive negative polymer composition comprising (a) an epoxy group-containing compound, (b) a first onium salt containing a structure of a cationic part of formula (b1) , and a structure of an anionic part of formula (b2) , and (c) a second onium salt containing a structure of a cationic part of formula (c1) , and a structure of an anionic part of formula (c2) . The invention also discloses a thin structure obtained from said composition and a method for making said thin structure, as well as a liquid ejector head in which said thin structure is used.EFFECT: composition reduces variability and provides excellent reproducibility of a three-dimensional shape when using a photolithographic process.11 cl, 5 dwg, 1 tbl, 12 ex

Light-sensitive polymer composition, methods of structure obtaining and head for liquid supply // 2526258
FIELD: chemistry.SUBSTANCE: invention relates to a light-sensitive polymer composition, suitable for obtaining various microdevices for microelectromechanical systems and other systems, as well as to a method of the structure obtaining and to a head for a liquid supply. The polymer composition contains the following components: (a) epoxy resin, which can be polymerised in the presence of an acid; (b) photoacid-generating agent, which contains an onium salt, containing a structure of a cationic part, represented by formula , and a structure of an anionic part, represented by formula , and (d) one of diphenyl, naphthalene and anthracene compounds, containing one of the following compounds: The component (b) absorbs, at least, 50% of quantity of light with the wavelength of 365 nm, absorbed by the light-sensitive polymer composition. The method of the structure obtaining consists in the following: a substrate, containing a layer of the said light-sensitive polymer composition is taken and irradiated by light. After that, an irradiated part is hardened and a non-solidified part is removed. After that, a solidified part is heated at a temperature, of at least, 140 degrees Celsius to obtain the structure. The head for the liquid supply contains an element of a hole for supply, containing the hole for supply, constructed for the liquid supply. The element of the hole for supply is obtained from the product of hardening of the said light-sensitive polymer composition.EFFECT: invention makes it possible to obtain the structure with high sensitivity and high shape correctness.9 cl, 9 dwg, 4 tbl, 9 ex
 
2551176.
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