Polymerisation-able photochromic isocyanate composition, photochromic mesh optical material and method of obtaining photochromic mesh optical material

FIELD: chemistry.

SUBSTANCE: group of inventions relates to a polimerisation-able photochromic isocyanate composition, containing a photochromic compound, to a photochromic mesh optical material and to a method of its obtaining. The polimerisation-able photochromic isocyanate composition includes. wt.p.: an organic photochromic compound 1-15; a polymerisation catalyst 0.01-5, polymerisable compounds 100. The polymerisable compounds contain, wt.p.: diisocyanates and/or oligoisocyanurateisocyanates 60-100, monoisocyanates 0-40. The catalyst is used in an amount of 0.01-5 wt.p. per 100 wt.p. of the polymerisable compounds. Also described is the photochromic mesh optical material - the product, obtained by thermal hardening of the polymerisation-able composition, described above, at least, on one surface of a sheet of a transparent substrate, made of polymethylmethacrylate, polycarbonate, polyethyleneterephthalate, cellulose derivatives, polyvinyl alcohol, polyvinylchloride, polyvinylidenchloride, polyethers, polyurethanes. Also described is a method of obtaining the photochromic mesh optical material.

EFFECT: obtaining the polymerisation-able photochromic isocyanate composition with high adhesion ability and product based on it with high optical properties, such as transparency, colourlessness, or colouration, and long-term exploitation.

13 cl, 2 tbl, 25 ex

 

Polimerizacionnye photochromic isocyanate composition for coatings, photochromic net optical material and method for producing photochromic net optical material.

Group of inventions relates to polimerizacionnye photochromic isocyanate composition containing a photochromic compound, the photochromic net optical material and method of its production.

Known polimerizacionnye photochromic composition comprising an organic photochromic compound, a polymerizable compound and a polymerization initiator (see US patent No. 6811830, CL C08P 2/46, 02.11.2004).

From the same patent known photochromic optical material obtained by thermal curing polimerizacionnye composition, and method of its production, including curing polimerizacionnye composition.

A common disadvantage of the above-described technical solutions relatively low term health due to irreversible photochemical transformations of substances.

The closest technical solution is polimerizacionnye photochromic isocyanate composition comprising: an organic photochromic compounds, in particular naphthopyrane and benzopyrene, polymerizable compounds containing the diisocyanate and catalyst polymerization (see about oblikovanju application US No. 2005/0233153, CL B32B 27/00, 20.10.2005).

From the same application known photochromic optical material obtained by thermal curing polimerizacionnye composition and method of its production, including curing polimerizacionnye composition.

Known technical solution allows to obtain a fine and homogeneous lenses. However, the composition and received the product does not allow to achieve the required adhesive properties upon receipt of the product, and the desired long lifetime.

Task to be solved by the present invention is directed, is to eliminate the above disadvantages.

The technical result consists in obtaining polimerizacionnye photochromic isocyanate compositions with a high level of adhesion and product based on it with high optical properties such as transparency, transparency or coloring and long-term operation.

This problem is solved and the technical result is achieved due to the fact that polimerizacionnye photochromic isocyanate composition comprises: 1-15 wt.h. organic photochromic compounds and 0.01-5 wt.h. the polymerization catalyst per 100 wt.h. polymerizable compounds; 100 wt.h. polymerizable compounds containing: 60-100 wt.h. diisocyanates and/or olig is isocyanoacetate and 0-40 wt.h. monoisocyanates.

Oligoneuriidae selected from the group of oligothienylsilane based on aliphatic, aromatic and cycloaliphatic diisocyanates or oligoneuriidae selected from the group consisting of oligothienylsilane based on 1,6-hexamethylenediisocyanate, isophoronediisocyanate, 2,4-toluylene diisocyanate, 1,3-cyclohexanediamine, 4,4'-methylene-bis(phenylisocyanate).

The diisocyanate is selected from the group consisting of aliphatic, aromatic and cycloaliphatic isocyanates or mixtures thereof or a diisocyanate selected from the group consisting of 1,6 - hexamethylenediisocyanate (HMDI), isophorondiisocyanate (IPDI), 2,4-toluylene diisocyanate (TDI), 1,3-cyclohexanediamine (CGDI), 4,4'-methylene-bis(phenylisocyanate) (MBFI).

Monoisocyanates selected from the group consisting of largecapitalization (HHMI), meta-chlorophenylalanine (MHFI), or mixtures thereof, and the ratio of isocyanate groups belonging to the diisocyanate and/or derivatives of diisocyanates, isocyanate groups belonging monoisocyanates must be at least 2.

The polymerization catalyst selected from the group of tertiary amines, derivatives of Quaternary ammonium bases, Mannich bases, organic tin compounds, in particular alkoxy, carboxylate compounds of tin, salt SEL is cnyh metals, organic salts of metals of variable valence, in particular naphthenate, stearates, acetylacetonates or catalyst for the polymerization of isocyanates selected from the group dibutylthiourea tin (DBDA), the catalytic system 1,4-diazobicyclo[2,2,2]octane (DABCO) - propylene oxide (OP), hexabutylditin (GBSO), triethylamine (tea), tetraethylammonium hydroxide (TEAH).

Photochromic compounds selected from the group consisting of naphthopyrans, Internatoinal, fulgides, phenantroline, Spiro(indoline)nafoxidine, or mixtures of such photochromic compounds.

Photochromic net optical material is a product obtained by heat curing the above-described polimerizacionnye composition, at least one surface of the sheet of the transparent substrate, in particular, the product can be obtained on the substrate from a sheet of transparent organic glass, polymethyl methacrylate or polycarbonate, and the product can be obtained on the substrate from a sheet of transparent organic material thickness 25-150 μm, selected from the group consisting of polyethylene terephthalate, cellulose acetate, triacetate cellulose propionate cellulose acetate, butyrate cellulose acetate, polyvinyl acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidenechloride, polyesters and polyurethanes.

The method of obtaining f is Toranaga net optical material is:

cooking polimerizacionnye isocyanate composition;

preparing the surface of the transparent substrate, including degreasing and drying with solvent;

fill prepared polimerizacionnye isocyanate composition on the prepared surface of the transparent substrate a thin layer of 5-50 microns;

drying isocyanate composition on the surface of the prepared transparent substrate from the solvent by keeping at a temperature of 40-45°C for 10-20 min and

thermal polymerization polimerizacionnye isocyanate composition on the surface of the prepared transparent substrate at a temperature of 100-120°C for 25-35 minutes

In the course of the study identified the possibility of creating polimerizacionnye photochromic isocyanate composition, forming as a result of thermal curing on the surface of the transparent organic material film photochromic net optical material having high photo resistance.

In polimerizacionnye compositions can be used as the source component as the diisocyanate, and the product of its partial cyclotrimerization - oligopolymerization. A typical example oligothienylsilane is the oligomer of structure (I):

which is synthesized according to the following scheme 1:

where kt is the catalyst.

As a starting diisocyanate to obtain oligothienylsilane can be used 1,6-hexamethylenediisocyanate, isophoronediisocyanate, 2,4-tolylenediisocyanate, 1,3-cyclohexanedimethanol, 4,4'-methylene-bis(phenylisocyanate). Most preferred are 1,6-hexamethylenediisocyanate, isophoronediisocyanate.

In addition, as a polymerizable component can be used and the diisocyanate. Most preferred are 1,6-hexamethylenediisocyanate, isophoronediisocyanate.

Polimerizacionnye composition may include monoisocyanates in addition to the above diisocyanates and oligopolymerization. It is preferable from the viewpoint of optimum characteristic properties such as density network of cross-linked polymer and, hence, the elasticity of net optical polymer.

Obtaining photochromic cross-linked product by polymerization isocyanatomethyl components may only be carried out using appropriate catalysts. Typical examples of catalysts include dibutylthiourea tin (DBDA), triethylamine, and a catalytic system 1,4-diazobicyclo[2,2,2]octane (DABCO) oxide about Elena (OP), hexabutylditin (GBSO), triethylamine (tea), tetraethylammonium hydroxide (TEAH), naphthenate different transition metals. The most preferred of them are GBSO, TAAG, the catalytic system DABCO OP and naphthenate transition metals.

The catalyst is used in an amount of from 0.01 to 5 weight percent to polimerizacionnye component. The most preferred concentration of catalyst 1-2 wt.%. It should be noted that the polymerization catalyst may be contained directly in the polymerizable compound, as in the case of oligosaccharyltransferase, or it can be added when cooking polimerizacionnye composition.

Curing polimerizacionnye composition occurs at high temperatures. Most preferred the curing temperature of 100-120°C. In the heat isocyanatomethyl composition is formed polyisocyanurate film.

Polyisocyanurate - crosslinked polymers regular chemical structure - get reactions cyclotrimerization diisocyanates and oligothienylsilane, i.e., first formed fragment with three terminal NCO-groups, which includes the cycle (scheme 1), the result of cyclotrimerization these end groups, the formation of polymer - is isocyanurate (scheme 2).

Among thermally and chemically stable polymeric materials stitched polyisocyanurate have very attractive properties. This is a high strength, ability to withstand temperatures from -200°C to +300°C, high adhesion to virtually any substrate, excellent insulating properties, high resistance to various organic solvents and corrosive environments, high radiation resistance.

As described above, polimerizatsionnyh compositions of the present invention, filled with photochromic compound can be obtained photochromic net optical materials combining excellent photochromic properties, especially for long-term use, and good optical properties such as transparency and transparency. In addition, the mesh materials have good adhesion to various matrices, which makes it very promising for their use as coatings on various substrates.

The following examples more specifically describe the subject matter of this invention but not to limit possible implementations of the invention.

Synthetic examples 1-8. Synthesis oligothienylsilane structure (I) using different catalysts and different diisocyanates.

Synthetic example 1.

Synthesis oligothienylsilane based on the diisocyanate, HMDI (TIC-HMDE) using a catalyst GBSO:

A blown shock argon the reaction vessel with efficient stirring was placed 253 g (100 wt.h.) HMDI and of 5.06 g (2.0 wt.h.) the catalyst GBSO, kept at a temperature of 140°C for 2.5 hours. Periodically samples were taken to determine the content of NCO-groups. To prevent gelation in achieving the degree of conversion 0.40-0.49 quickly cooled the reaction mass. The final product was determined by the content of NCO-groups by the method of IR-spectroscopy and chemical methods.

Synthetic example 2.

Synthesis oligothienylsilane TIC-HMDI using naphthenate catalyst.

As in example 1, except that instead of the catalyst GBA was introduced to 19.7 g of a 31% solution in toluene of naphthenate With the content of the catalyst in relation to HMDI 2.4 wt.h.

Synthetic example 3.

Synthesis oligothienylsilane TIC-HMDI using a catalytic system DABCO-OP.

As in example 1, except that instead of the solution of catalyst GBA was introduced to 28.3 g of a 25% solution in toluene catalytic system DABCO OP (DABCO:OP=1:2,5), the content of catalyst in relation to HMDI was 2.8 wt.h. The reaction system was kept at 60°C for 0.5 hours. Periodically samples were taken to determine the content of NCO-groups.

Synthetic example 4.

Synthesis oligosacharides the cyanate TIC-HMDI using catalyst TEA.

As in example 3, except that instead of a catalytic system DABCO-OP was introduced to 8.4 g of 10% solution TAAG in dimethyl sulfoxide, the content of catalyst in relation to HMDI amounted to 0.33 wt.h.

Synthetic example 5.

Synthesis oligothienylsilane based on the diisocyanate, IPDI (TIC-IPDI) using a catalyst TAAG.

As in example 3, except that instead of a diisocyanate, HMDI used IFDI.

Synthetic example 6.

Synthesis oligothienylsilane on the basis of 2,4-toluylene diisocyanate (TIC-TDI) using a catalyst TAAG.

As in example 3, except that instead of a diisocyanate, HMDI used TDI.

Synthetic example 7.

Synthesis oligothienylsilane based on 1,3-cyclohexanediamine (TIC-CGDI) using the catalyst of tea.

As in example 3, except that instead of a diisocyanate, HMDI used 60% solution of CGDI in toluene and the catalyst TAAG was used the catalyst of tea.

Synthetic example 8.

Synthesis oligothienylsilane based on 4,4'-methylene-bis(phenylisocyanate) (TIC-MBFI) using a catalyst DRILO.

As in example 1, except that instead of a diisocyanate, HMDI used 60% solution MBFI in toluene and the catalyst GBA was used to produce the p DRILO.

Table 1 presents characteristics of oligosaccharides at different degrees of conversion.

Examples 9-14. Getting polimerizatsionnyh photochromic compositions on the basis of oligothienylsilane and their mixture with diisocyanates.

Example 9

In purged with argon glass vessel of dark glass are mixed (hereinafter, the content of the components of the polymerization system is indicated in wt.h. on 100 wt.h. polymerizable compounds) 4 g TIC-HMDI, 0,048 g (1,2 wt.h.) photochrome methyl 9-dimethylamino-2-phenyl-2-(4-piperidinophenyl)-2H-oil[1,2-b]Piran-5-carboxylate from the class of naphthopyrans and 8 g of solvent. The catalyst in this example was not brought into the song, because the original oligopolymerization initially contains the necessary catalyst. As a solvent used dried methylene chloride or toluene. Removal of foreign particles, the solution was filtered in a stream of argon through a fabric filter.

Example 10

As in example 9, except that instead of TIC-HMDI used TIC-IPDI, and instead naphthopyrane used photochrom of class Spiro(indoline)nafoxidine 1,3-Dihydro-1,3 .3m-trimethyl-8'-nitro-Spiro(2H-indole-2,3'-3H-naphthas[2,1-b]oxazin) in an amount of 0.04 g (1.0 wt.h.).

Example 11

As in example 9, the drop is observed in instead of TIC-HMDI used TCI, TDI, and instead naphthopyrane used photochrom 3-[1-(1-Benzothieno-3-yl)ethylidene]-4-adamantylidene-1-(4-methoxyphenyl)-dihydro-2,5-furandione class of fulgides in the amount of 0.6 g (15.0 wt.h.).

Example 12

As in example 9, except that instead of TIC-HMDI used TIC-CGDI, and instead of one photochrome used a mixture consisting of photochrome 1,3-Dihydro-1,3 .3m-trimethyl-8'-nitro-Spiro(2H-indole-2,3'-3H-naphthas[2,1-b]oxazine) in an amount of 0.045 g, photochrome 2,2-diphenyl-2H-phenanthro[9,10-b]Piran from the class of penetrationof in the number 0,155 g and photochrome 3,3-di(4-methoxyphenyl)-Spiro(1H-inden-1,3')-3H-oil[2,1-b]Piran from the class of Internatoinal in the amount of 0.40, the Total number of photochromes amounted to 15 wt.h.

Example 13

As in example 9, except that instead of TIC-HMDI used TIC-MBFI.

Example 14

As in example 9, except that instead of TIC-HMDI used a mixture consisting of 2 g of TIC-IPDI and 2 g HMDI.

Examples 15-19. Getting polimerizatsionnyh photochromic compositions based on diisocyanates

Example 15

In purged with argon glass vessel of dark glass mix 4 g HMDI and 4 g of toluene. In the prepared solution of the diisocyanate was dissolved catalytic system DABCO OP (DABCO:OP=1:2,5), the content of the catalytic system in relation to GM And amounted to 2.8 wt.h. Then the composition was introduced photochrom 9-methoxy-2,2-bis(4-methoxyphenyl)-2H-oil[1,2-b]Piran-5-carboxylate from the class of naphthopyrans in the amount of 0.24 g (6.0 wt.h.). Removal of foreign particles, the solution was filtered in a stream of argon through a fabric filter.

Example 16

As in example 15, except that instead of HMDI used IFDI, and instead catalytic system DABCO OP used the catalyst GBSO in the amount of 0.2 g (5 wt.h.).

Example 17

As in example 15, except that instead of HMDI used TDI.

Example 18

As in example 15, except that instead of HMDI used CGDI.

Example 19

As in example 15, except that instead of HMDI used MBFI.

Examples 20-23. Getting polimerizacionnye photochromic composition in the joint polymerization of HMDI with monoisocyanates and their mixtures with oligothienylsilane.

Example 20.

In purged with argon glass vessel of dark glass mixed 93 g HMDI (60 wt.h.), 67 g MHFI (40 wt.h.) and 340 g of toluene. In the prepared solution was made 0,0045 g DABCO and 0,0115 g OP. The total content of the catalytic system DABCO OP is equal to 0.01 wt.h. Then the composition was introduced photochrom methyl 9-methoxy-2,2-bis(4-methoxyphenyl)-2H-oil[1,2-b]Piran-5-carboxylate from the class of chromenes in the number 4,48 g (2.8 wt.h.). For removing foreign particles RA the solution was filtered in a stream of argon through a fabric filter.

Example 21.

As in example 20, except that instead of MHFI used monoisocyanates HHMI.

Example 22.

As in example 20, except that instead of MHFI used a mixture of monoisocyanates MHFI, HHMI in a 1:1 ratio.

Example 23.

As in example 20, except that instead of HMDI used a mixture of diisocyanate, HMDI with oligothienylsilane TIC-HMDI in a 2:1 ratio.

Examples 24-25. Obtaining photochromic net optical material.

Example 24.

The surface of the transparent substrate from a sheet of transparent organic glass made of polycarbonate with a thickness of 2 mm is degreased with a solvent and dried at a temperature of 40-45°C for 1-5 minutes Prepared according to example 9-23 polimerizacionnye isocyanate composition is poured onto the prepared surface of the transparent substrate a thin layer of 5-50 μm, dried from the solvent by keeping at a temperature of 40-45°C for 10-20 min and subjected to thermal polymerization at a temperature of 100-120°C for 25-35 minutes

Example 25.

As in example 24, except that instead of a sheet of transparent organic glass, polycarbonate as the substrate using a transparent sheet of organic material with a thickness of 50 μm made of polyethylene terephthalate.

Received in accordance with the above examples is ukranie net optical materials transparent and colorless, and in the bright sun light colored, and the color and intensity of staining depends on photochrome. Table 2 shows test data photochromic net optical materials obtained in example 24 on the basis of polimerizatsionnyh isocyanate compositions prepared according to examples 9-23.

Time reduction induced optical density 2 times (t0,5fdegp) characterizes the photo resistance of the material.

Photochromic net optical materials can be used, for example, in the construction of sports facilities, a different kind of "glass" buildings, as well as in everyday life, industry and agriculture. Film photochromic net optical materials can be pasted on existing and new glazing, including vehicles.

Table 2
Characteristics of photochromic net optical materials
# exampleλBmandKwith a,the m ΔDBfabouttabout.mandKwith at0,5fdegphcolor
9490,5800,47575gray
106151,5405red
115100,42624red
126201,8420gray
13490,5800,42586gray
14490,58 0,48572gray
155300,831860purple
165300,801880purple
175300,831850purple
185300,851790purple
195300,791930purple
205300,881790purple
215300,911750purple
225300,90 1760purple
235300,891780purple
Note theλBmandKwith athe wavelength of maximum absorption film in the photoinduced state; ∆ DB- photoinduced change of the optical density at the maximum absorption band of the photoinduced form;t0,5fdegpthe time reduction photoinduced optical density at the maximum absorption band of the photoinduced form under the action of the unfiltered radiation sources - lamps -4 firms "Hamamatsu" (characterized by the photo resistance material ). For photocreative used glass filter UFS-1.

1. Polimerizacionnye photochromic isocyanate composition for coatings, including:
1-15 wt.h. organic photochromic compounds and 0.01-5 wt.h. the polymerization catalyst per 100 wt.h. polymerizable compounds;
100 wt.h. polymerizable with the of dinani, contains: 60-100 wt.h. diisocyanates and/or oligothienylsilane and 0-40 wt.h. monoisocyanates.

2. The composition according to p. 1, characterized in that oligoneuriidae selected from the group of oligothienylsilane based on aliphatic, aromatic and cycloaliphatic diisocyanates.

3. The composition according to p. 1, characterized in that oligoneuriidae selected from the group consisting of oligothienylsilane based on 1,6-hexamethylenediisocyanate, isophoronediisocyanate, 2,4-toluylene diisocyanate, 1,3-cyclohexanediamine, 4,4'-methylene-bis(phenylisocyanate).

4. The composition according to p. 1, wherein the diisocyanate is selected from the group consisting of aliphatic, aromatic and cycloaliphatic isocyanates or mixtures thereof.

5. The composition according to p. 1, wherein the diisocyanate is selected from the group consisting of 1,6-hexamethylenediisocyanate, isophoronediisocyanate, 2,4-toluylene diisocyanate, 1,3-cyclohexanediamine, 4,4'-methylene-bis(phenylisocyanate).

6. The composition according to p. 1, characterized in that monoisocyanates selected from the group consisting of largecapitalization, meta-chlorophenylalanine, cyclohexylsulfamate or mixtures thereof, and the ratio of isocyanate groups belonging to the diisocyanate and/or derivatives of diisocyanates, isocyanate groups, belonging the x monoisocyanates, must be at least 2.

7. The composition according to p. 1, characterized in that the polymerization catalyst selected from the group of tertiary amines, derivatives of Quaternary ammonium bases, Mannich bases, organic tin compounds, in particular alkoxy, carboxylate compounds of tin, alkali metal salts, organic salts of metals of variable valence, in particular naphthenate, stearates, acetylacetonates.

8. The composition according to p. 1, characterized in that the catalyst for the polymerization of isocyanates selected from the group dibutylthiourea tin, triethylamine, 1,4-diazabicyclo[2,2,2]octane, hexabutylditin, triethylamine, tetraethylammonium hydroxide.

9. The composition according to p. 1, wherein the photochromic compound is selected from the group consisting of naphthopyrans, Internatoinal, phenantroline, Spiro(indoline)nafoxidine, fulgides, or mixtures of such photochromic compounds.

10. Photochromic net optical material is a product obtained by thermal curing polimerizacionnye the composition of PP. 1-9, at least on one surface of the sheet of the transparent substrate.

11. The material on p. 10, characterized in that the product obtained on the substrate from a sheet of transparent organic glass, polymethyl methacrylate or polycarbonate.

12. The material on p. 10, characterized in that the product p is obtained on the substrate from a sheet of transparent organic material thickness 25-150 μm, selected from the group consisting of polyethylene terephthalate, cellulose acetate, cellulose triacetate, acetate propionate cellulose, acetate butyrate cellulose, polyvinyl acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidenechloride, polyesters and polyurethanes.

13. A method of obtaining a photochromic net optical material, consisting in:
cooking polimerizacionnye isocyanate composition on PP. 1-9;
preparing the surface of the transparent substrate, including degreasing and drying with solvent;
fill prepared polimerizacionnye isocyanate composition on the prepared surface of the transparent substrate a thin layer of 5-50 microns;
drying isocyanate composition on the surface of the prepared transparent substrate from the solvent by keeping at a temperature of 40-45°C for 10-20 min and
thermal polymerization polimerizacionnye isocyanate composition on the surface of the prepared transparent substrate at a temperature of 100-120°C for 25-35 minutes



 

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EFFECT: improved methods of synthesis.

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17 cl, 6 dwg, 3 tbl

FIELD: physics.

SUBSTANCE: free form ophthalmic lens comprises a first optical zone portion comprising multiple voxels of polymerised crosslinkable material containing a photoabsorptive component. The optical zone portion comprises a first area having a first refraction index and a second area having a second refraction index; and a second portion comprising a layered volume of crosslinkable material polymerised beyond the gel point of the crosslinkable material.

EFFECT: obtaining ophthalmic lenses with a free form surface and areas with different refraction indices, which enable to correct vision by changing the focal distance.

18 cl, 19 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of sandwiched materials used in thin-film instruments and devices. Proposed levelling film comprises levelling ply containing binding polymer resin and inorganic filler as components, at least, on one side of transparent polymer substrate. Note here that the number of foreign particles with mean diameter of 20-100 mcm on levelling air surface does not exceed 5 per m2.

EFFECT: decreased amount of linear defects at production of thin-film transistor on film surface.

3 cl, 1 tbl, 3 ex, 2 dwg

FIELD: physics, optics.

SUBSTANCE: group of inventions relates to producing a terbium aluminium garnet monocrystal which can be used as a Faraday rotator for optical insulators. In the terbium aluminium garnet monocrystal, a portion of aluminium is at least replaced with scandium and a portion of at least aluminium or terbium is replaced with at least one component selected from a group consisting of thulium, ytterbium and yttrium, wherein the garnet monocrystal has the general formula (Tb3-x-zSczMx) (Sc2-yMy) Al3O12 (1), where M represents at least one component selected from a group consisting of Tm, Yb and Y, and x, y and z satisfy the following relationship: 0<x+y≤0.30 and 0≤z≤0.30.

EFFECT: present monocrystal has a high light transmission factor in a wide wavelength range and a wide Faraday rotation angle with cracking-resistance.

8 cl, 3 dwg, 1 tbl, 12 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polymers for producing ionic silicone hydrogels suitable for making ophthalmic devices. Disclosed are polymers obtained from reactive components comprising at least one silicone-containing component which includes at least one trimethylsilyl group and at least one ionic component comprising at least one anionic group, which is a carboxylic acid-containing component. Also disclosed is a contact lens made from the disclosed polymers.

EFFECT: disclosed polymers demonstrate improved thermal stability and desirable protein uptake.

24 cl, 5 dwg, 10 tbl, 18 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to crystalline colloidal arrays. Described is a method of obtaining a crystalline colloidal array, including the dispersion of a monomer in an emulsion, which contains a polymer reactionable surface-active substance; the monomer polymerisation to obtain monodisperse polymer particles, where the polymer reactionable surface-active substance is covalently bound with the polymer particles, and the application of the dispersion on a substrate, with particles being self-ordered in the form of an ordered periodic array, and the polymer reactionable surface-active substance includes at least one compound, selected from polyethyleneglycolmonomethacrylate, polyethyleneglycolacrylate, poly(propyleneglycol)monomethacrylate esters of phosphoric acid, poly(propyleneglycol)monoacrylate esters of phosphoric acid, poly(ethyleneglycol)monomethacrylate esters of phosphoric acid, poly(ethyleneglycol)monoacrylate esters of phosphoric acid, poly(propyleneglycol)monomethacrylatesulphate, poly(propyleneglycol)monoacrylatesulphate, poly(ethyleneglycil)monomethacrylatesulphate, poly(ethyleneglycol)monoacrylate sulphate, allyloxypolyethoxysulphate, allyloxypolyethoxyphosphate, allyloxypolypropyloxysulphate and allyloxypolypropyloxyphosphate. Also described is the crystalline colloidal array, a product, containing the crystalline colloidal array, a film, containing the crystalline colloidal array, a coating composition, containing the crystalline colloidal array.

EFFECT: obtaining the crystalline colloidal array, including the polymer reactionable substance, covalently bound with the surface of particles, which possesses the lower formation of defects in the array.

19 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: radiation-diffracting material contains an ordered regular array of particles held in a polymer matrix, where each of said particles has a core surrounded by a cross-linked shell made from a film-forming composition which is different from said matrix. The dyed coating composition contains resinous binder and radiation-diffracting material.

EFFECT: obtaining radiation-diffracting material suitable for use in form of particles as dyes in coloured coating compositions.

26 cl, 6 ex, 3 tbl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to coating compositions, particularly coating compositions with a decorative effect, which enable to obtain multi-colour and/or different-tone surfaces when applied once. Initially, the single-colour coating composition contains a first dye, a thickener, a surfactant or a mixture of surfactants with hydrophilic-lipophilic balance (HLB) less than 9 or greater than 11 and binder. All components are dispersed or dissolved in an organic solvent and water. After deposition of the said composition in form of a film onto a substrate surface which is a wall or ceiling panel, the first dye becomes incompatible with the said composition, as a result of which a portion of the first dye migrates towards the outer face of the panel while the coating composition is still in liquid state. Additional decorative effects are achieved by sliding the surface using a putty spittle or some other instrument while the coating composition is still in liquid or quasi-liquid state. The set for applying the decorative coating onto the surface contains the said composition and a label.

EFFECT: obtaining a ready coating having two differently-coloured zones, colour contrast (ΔE) between which is greater than 0,25.

23 cl, 5 tbl, 5 ex

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