Acoustic polymeric intermediate layers, sustainable to defects formation

FIELD: technological processes.

SUBSTANCE: polymer layer for multi-layer glass panels comprises three polymer layers containing plasticized polyvinyl butyral with a molecular weight less than 140,000 Da in which the second polymer layer is positioned between the first polymer layer and the third polymer layer to form a polymer intermediate layer with two outer layers and one inner layer.

EFFECT: creation of an intermediate layer for shatterproof glass, which provides glass with an increased level of sound insulation, reduced light transmission, and the absence of optical defects.

10 cl, 3 tbl, 4 dwg

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to an intermediate film for laminated glass which is used for laminated in cars, buildings etc. The film includes a heat-insulation layer and a UV shielding layer. The heat-insulation layer includes a polyvinyl acetate polymer, heat-insulation particles of a metal oxide and at least one component selected from a phthalocyanine compound, naphthalocyanine compound and anthracyanine compound. The UV shielding layer includes a polyvinyl acetate polymer and a UV shielding material, where the amount of the UV shielding material is at least 0.1 wt % per 100 wt % of the UV shielding layer. Also disclosed is laminated glass, which includes a first laminated glass component and a second laminated glass component and said intermediate film placed between the first and second laminated glass components.

EFFECT: disclosed intermediate film endows the laminated glass with excellent heat insulation properties and retains said properties for a long period of time.

10 cl, 2 dwg, 5 tbl, 12 ex

FIELD: chemistry.

SUBSTANCE: transparent fire-resistant glazing contains a construction from two sheets of tempered glass, between which a layer of hydrated alkali metal silicate is placed. Edges of the glass sheet, which is the first to be subjected to the fire impact, are non-deckled, uneven, and the sheet has low tensions and/or small thicknesses. Edges of the second glass sheet are matted or polished.

EFFECT: stability of the layer composition, providing glazing transparency, during the required time.

5 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to intermediate film for multilayered glass. Intermediate film for multi-layered glass contains thermoplastic polymer, plasticiser, heat-insulating particles and at least, one compound, selected from the group, consisting of phthalocyanine compound, naphthalocyanine compound and anthracyanin compound. Quantity of heat-insulating particles per 100 wt.p. of thermoplastic polymer constitutes from 0.1 to 3 wt.p. Ratio of quantity of heat-insulating particles and compound, selected from the group, consisting of phthalocyanine compound, naphthalocyanine compound and anthracyanin compound, constitutes from 3 to 2000.

EFFECT: improvement of heat-insulating properties of multi-layered glass and transmission of visible light.

9 cl, 2 tbl, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to production of layered materials for multilayer glass and can be used as a HUD display which does not deteriorate even when exposed to light. The layered material includes an interlayer film and a retarding element placed between adhesive layers. The film of the multilayer glass contains a thermoplastic resin and a UV absorber. The UV absorber is a benzotriazole compound or a benzophenone compound and at least one compound selected from a group consisting of a malonic ester compound, an oxanilide compound and a triazine compound. Total content of the malonic ester compound, oxanilide compound and triazine compound is not less than 0.8 pts.wt, and total content of the benzotriazole compound or benzophenone compound is not less than 0.8 pts.wt per 100 pts.wt thermoplastic resin. The adhesive layer contains an adhesive, having a glass transition point of -20°C or lower.

EFFECT: layered material has high impact strength.

20 cl, 1 dwg, 3 tbl, 62 ex

FIELD: process engineering.

SUBSTANCE: invention relates to interlayer film for sandwiched glass. Proposed film is based on polyvinyl acetate resin, plasticiser and indole compound. Indole compound features the following chemical formula: (1), wherein R1 is alkyl group containing 1-3 carbon atoms, while R2 is hydrogen atom, alkyl group containing 1-10 carbon atoms, or aralkyl group containing 7-10 carbon atoms.

EFFECT: lower UV beams transmission with wavelength of 380-400 nm, high transmission of visible light and higher resistance to light effects.

9 cl, 12 tbl, 91 ex

FIELD: chemistry.

SUBSTANCE: invention relates to interlayer film for laminated glass and laminated glass, which contains claimed film. Interlayer film for laminated glass includes soundproof layer, for which temperature T1, which is the temperature giving maximal value of tangent δ at frequency 1 Hz, lies in the range from -30°C to 0°C. Soundproof layer contains 71-160 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 3 or 4 carbon atoms in acetal group, or 50-80 wt.p. of plasticiser relative to 100 wt.p. of polyvinyl acetal resin, which has 5-12 carbon atoms in acetal group. Laminated glass contains claimed interlayer film, placed between two transparent sheets.

EFFECT: obtaining interlayer film for laminated glass and based on it laminated glass, which ensures soundproof action for solid-induced sound in the environment at 0°C or lower temperature.

12 cl, 7 tbl, 53 ex

Fireproof glazing // 2503543

FIELD: chemistry.

SUBSTANCE: invention deals with transparent fireproof glazing. It contains sheets of glass and one or several layers of swelling composition from hydrated silicate of alkali metal between them. Thickness of said different component parts and composition of swelling layer or layers is obtained without drying. Thickness of e glazing is expressed in millimeters, that is sheets of glass and swelling layer (-s), and class of fire resistance EI, expressed in minutes, satisfies ratio 3≤EI/e. Swelling layer (-s) has(have) content of water between 33% and 43% wt % and molar ratio between 3.5 and 5.

EFFECT: invention ensures creation of glazing with high characteristic of fire resistance.

6 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft cockpit glazing, particularly, to protection against electromagnetic interferences. Aircraft cockpit glazing comprises multiple translucent stacked panels, inner and outer holders, sealing, film electromagnetic shield and connection film. Holders are made of current conducting material for stacked panels to be fitted there between. Sealing is fitted between double glass outer holder and glazing panels. Electromagnetic shield is arranged between two adjacent glazing panels and made of electrically conducting material. Connection film is made of current conducting material to connect electromagnetic film outer edges with double glass outer holder.

EFFECT: reliable electric connection, safe mechanical attachment.

6 cl, 6 dwg

FIELD: chemistry.

SUBSTANCE: invention provides a layered material for multilayer glass, which includes an interlayer film for multilayer glass laminated with a retarding element placed between an adhesive layer A and an adhesive layer B, where the retarding element contains a liquid crystal compound and at least one compound selected from a group consisting of a compound of formula (1), a compound of formula (2) and a compound of formula (3) given below. In formula (1), n is an integer from 3 to 10, a R2 is a -CH2-CH2-, -CH2-CH(CH3)- or -CH2-CH2-CH2- group. In formula (2), R3 is a -(CH2)P- group or a phenylene group and p is an integer from 4 to 8. In formula (3), R4 is a substituted phenylene group. R1-1, R1-2 and R1-3 in formulae (1)-(3) are identical or different, each representing an alkyl group having a branched structure and containing at least 5 carbon atoms. [Formula 1].

EFFECT: providing a layered material for multilayer glass which demonstrates excellent heat resistance, small changes in retardation values in high-temperature gaseous media and can maintain stable optical properties.

11 cl, 2 tbl, 16 ex

FIELD: process engineering.

SUBSTANCE: invention relates to repair of automotive glasses. Glass surface nearby defect is damped. Forced cooled airflow is created by fan to accelerate moisture evaporation from glass surface. Said fan comprises cooling heat exchanger. Repair of said glass comprises, as a rule, filling said defect with polymer.

EFFECT: faster repair.

30 cl, 2 dwg

FIELD: packaging industry.

SUBSTANCE: invention relates to multilayer materials and relates to thermoformable multilayer films and blister packs made of them. The multilayer structure comprises a first polymeric layer having a first surface and a second surface, where the first polymeric layer comprises a metallised polyethylene terephthalate. The multilayer structure also comprises a second polymeric layer having a first surface and a second surface, where the first surface of the second polymeric layer is located adjacent the second surface of the first polymeric layer, the second polymeric layer comprises cyclic olefin or homopolymer of chlorotrifluoroethylene. The multilayer structure additionally comprises a third polymeric layer having a first surface and a second surface, where the first surface of the third polymeric layer is located adjacent to the second surface of the second polymeric layer. The third polymeric layer comprises polypropylene or polyvinyl chloride. Also the method of manufacturing a multilayer film structure and thermoformed blister pack is proposed.

EFFECT: invention provides creation of high-tech films having moisture resistant properties for use them in blister packs, including smokeless pressed tobacco articles.

30 cl, 4 dwg

FIELD: textiles, paper.

SUBSTANCE: invention relates to textile and light industry, and relates to soil-resistant breathable fabric laminate material and clothes from it. It comprises a textile layer attached by means of an intermittent connection to the asymmetric porous membrane comprising at least two porous layers or layer throughout the thickness of the membrane. The methods of production of the fabric laminate material, as well as clothing made from it are disclosed.

EFFECT: invention provides creation of the breathable fabric material for clothing, soil-resistant and without deterioration of consumer properties.

49 cl, 14 dwg, 6 tbl, 17 ex

FIELD: transport.

SUBSTANCE: invention relates to glazing of transport facilities. Proposed aircraft glazing comprises two spaced apart polymer layers and complex coat with anti-sun properties. Complex coat is applied on at least a portion of one or several main surfaces. It includes first primer containing siloxane, anti-sun coat containing metallic and dielectric plies, protective coat containing metal oxide, top coat containing polysiloxane material and external coat of silicon oxicarbide.

EFFECT: better anti-sun properties.

29 cl, 8 dwg, 6 ex

FIELD: electricity.

SUBSTANCE: semiconductive band represents material with fibrous substrate saturated with current-carrying compound and current-carrying adhered layer. Adhered layer is made of latex based on carboxylated acryl copolymer or vinyl acetate and acrylic ester copolymer with current-carrying compound such as carbon black, graphite, silicone carbide.

EFFECT: semiconductive band has adhesion sufficient to provide work with it without deterioration of its conductivity performance; it can be used for corrosion prevention of high-voltage windings of electrical machines.

1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: method includes a step of depositing an aqueous composition containing polyvinyl alcohol on the bottom part of said supporting layer before a step of foaming said supporting layer.

EFFECT: forming a multilayer surface coating having improved acoustic properties.

11 cl, 5 dwg, 8 tbl

FIELD: packaging industry.

SUBSTANCE: multilayer structure comprises at least one barrier layer made from a composition comprising at least one vinylidene chloride polymer, at least one UV protective layer based on a polymer of ethylene and at least one reflective layer based on ethylene polymer, at that none of these layers serves as a sealing layer. At that the reflective layer comprises a white or metallic pigment or their combination, and the UV protective layer is preferably pigmented with dark pigment. The multilayer structure and products from it can be obtained by co-extrusion. In addition the multilayer structure according to the invention has a lesser tendency to cracking or the formation of microscopic through holes in the barrier layer than foil.

EFFECT: invention enables to store foods, such as milk, for a long period of time without cooling.

9 cl, 1 tbl, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to production of translucent power-saving (heat reflection) films with protective coating used for power saving by, for example, gluing them on whatever glazing. Protective coating consists of PEPT film and heat-reflecting spectrum-selective coating applied thereon. Protective coating consists of two layers and comprises adhesive-barrier layer and fluorocarbon polymer layer. Said adhesive-barrier layer comprises polyvinyl butural with UV-absorber (nanosilver). Said fluorocarbon polymer layer comprises copolymer of tri-chlorovinyl with vinyl-butyl ether and monovinyl ether of ethylene glycol, isocyanate hardener, UV-absorber (thynuvin) and polymethyl siloxane. Adhesive-barrier layer is applied on heat-reflecting coating while second fluorocarbon polymer layer is applied thereon.

EFFECT: production of translucent power-saving (heat reflection) films with protective coating used for power saving by, for example, gluing them on whatever glazing.

3 tbl, 13 ex

FIELD: process engineering.

SUBSTANCE: invention relates to production of moulds from polycarbonate with protective coating to be used in construction, aircraft building, instrument making, automotive industry etc using articles of polycarbonates including translucent articles, wear-proof articles, those with high hardness and resistance to ambient effects. Proposed method comprises forming the undercoat on polycarbonate substrate surface. Said undercoat is based on polymethyl methacrylate in the mix of two solvents, i.e. ethyl cellulosolve and chloroform. Besides it includes air drying, finish drying at 120°C to complete removal of solvent to undercoat film thickness of 10-30 mcm. Thereafter substrate with undercoat is heat-treated at 155-175°C and 50-100 MPa for 3-5 seconds and cooled to 70-75 °C at the same pressure. Then, coating of aqueous-alcoholic siloxane composition based on condensation of the mix of two three-functional alkoxysilanes is applied thereon and hardened at 80-85°C.

EFFECT: higher wear resistance and surface hardness.

3 cl, 1 tbl, 10 ex

FIELD: process engineering.

SUBSTANCE: invention relates to films resisting the atmospheric effects, particularly, to film with catalytically active surface. It consists of sublayer, insulation layer and polymethacrylate-based surface layer. Said surface layer contains 0.1-15 wt % of total weight of photocatalyst, that is, titanium acid anhydride.

EFFECT: films suitable for matting sections for windows and other articles subjected to ambient effects.

15 cl, 8 ex

FIELD: personal use articles.

SUBSTANCE: invention relates to multilayered tube-shaped plastic food wrap, in particular - to sausage casing. The multilayered tube-shaped plastic food wrap is manufactured on an instillation for production of multilayered plastic wrap by way of coextrusion with blowing through simultaneous delivery of the polymers to be jointly extruded to the blow head and biaxial stretching by the triple blowing method. The plastic food wrap contains at least six layers. The said at least six layers of the plastic food wrap are positioned in the direction from the outside to the inside as follows: the most outward layer consisting polyamide as the layer component, the most inward layer consisting polyamide as the layer component and a sequence of at least four intermediary layers, positioned between them, in the direction from the outside to the inside, as follows: one layer containing an adhesion boosting agent as the layer component, the next layer containing polyolefin as the layer component, the next layer containing polyolefin as the layer component and one more layer containing an adhesion boosting agent as the layer component.

EFFECT: tube-shaped plastic food wrap ensures long-term preservation of packaged food products (including those having high moisture content) and is characterised by optimal shrinkage and a high expandability factor.

18 cl, 3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to an intermediate film for laminated glass which is used for laminated in cars, buildings etc. The film includes a heat-insulation layer and a UV shielding layer. The heat-insulation layer includes a polyvinyl acetate polymer, heat-insulation particles of a metal oxide and at least one component selected from a phthalocyanine compound, naphthalocyanine compound and anthracyanine compound. The UV shielding layer includes a polyvinyl acetate polymer and a UV shielding material, where the amount of the UV shielding material is at least 0.1 wt % per 100 wt % of the UV shielding layer. Also disclosed is laminated glass, which includes a first laminated glass component and a second laminated glass component and said intermediate film placed between the first and second laminated glass components.

EFFECT: disclosed intermediate film endows the laminated glass with excellent heat insulation properties and retains said properties for a long period of time.

10 cl, 2 dwg, 5 tbl, 12 ex

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