Structured adhesive contact layer

FIELD: manufacturing technology.

SUBSTANCE: invention relates to adhesive tapes, particularly to adhesive tapes with adhesive layer specific surface topography and use thereof for printing plates adhesion. Adhesive tape contains, at least, one contact adhesive layer. Contact adhesive layer has, at least, one recess, which does not reach any one of contact adhesive layer edges. Total volume fraction of all recesses in contact adhesive layer containing such recesses, is more than 50%.

EFFECT: enabling higher adhesive surface and adhesion force regardless of pressing pressure and preventing air and fluids ingress in adhesion edge zones.

13 cl, 5 dwg, 2 tbl, 3 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to versions of pressure-sensitive glue and versions of method of thereof obtaining on the basis of biological raw material. Method of glue obtaining consists in the fact that reaction of epoxidised natural oil or fat with, at least, one alcohol, or amine, or aminoalcohol, or with their combination is performed. First reaction component is obtained by epoxidation of natural oil or fat.

EFFECT: invention makes it possible to elaborate economically profitable method of obtaining glue, capable of biological decomposition.

65 cl, 11 ex, 5 tbl

FIELD: technological processes.

SUBSTANCE: group of inventions relates to an adhesive tape, method of its manufacturing and method of automatic roll replacement. An adhesive tape (10) for use in devices with automatic roll replacement, including a double-sided adhesive tape (100) and a separated tape (200) from several self-adhesive layers. To produce an adhesive tape, which provides for easy and reliable application without sticking to the rear side of the upper layer of the roll material, at least the third self-adhesive layer (230) of the separated tape (200) has smaller width compared to a fixing layer (220) of the separated tape (200). Thus practically non-sticky area (240) is produced on the lower surface (212) of the separated layer (210). The method to manufacture an adhesive tape consists in fixation of different layers and making a gash of the third self-adhesive layer (230) of the separated tape (200). The method of automatic roll replacement consists in connection of wound roll material with other roll material and attachment of the adhesive tape to the end of the upper web of the wound roll material.

EFFECT: invention provides for easy and reliable application of adhesive tape in devices with automatic roll replacement.

14 cl, 10 dwg

FIELD: chemistry.

SUBSTANCE: label assembly comprises a facing layer and an adhesive layer activated on exposure to heat, and a layer of a functional coating between the adhesion layer and facing layer, wherein the adhesion layer activated on exposure to heat contains a polymer base containing at least one lower alkyl acrylate, styrene, methyl methacrylate, methacrylic acid, acrylic acid, at least one multi-functional monomer and at least one chain transfer agent, a plasticising agent and an adhesiveness-enhancing agent.

EFFECT: higher adhesiveness.

3 cl, 29 dwg, 21 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method for producing a foam composite element, comprising the steps of providing a cover layer, the applying of a bonding agent and the applying of a foam material layer comprising polyurethane and/or polyisocyanurate to the bonding agent. The bonding agent is selected from at least one compound selected from the group comprising polyetherpolyol (B.1), polyurea dispersion (B.3) and polyesterpolyol (B.4), wherein polyetherpolyol (B.1) is selected fro a group consisting of polyoxypropylene polyol, polyoxypropylene-polyoxyethilene polyol and polyether carbonate polyol. The invention also relates to the foam composite elements obtained by means of the method according to the invention.

EFFECT: result is improved adhesion between the foam and the facings in foam composite elements and at the same time the occurrence of not more than minor faults at the foam/facing interface.

11 cl, 2 tb l, 6 ex

FIELD: chemistry.

SUBSTANCE: fire-resistant adhesives contain a non-halogenated fire-resistant composition which consists of a combination of melamine phosphate and melamine cyanurate.

EFFECT: invention provides acceptable efficiency as an adhesive or tape.

8 cl, 3 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to thermosolificating adhesive composition, including from 20 to 65 wt % of polyether (A), which includes 2 hydrolysable terminal groups of alkoxysilane type, which has viscosity, measured at 23C with application of Brookfield viscometer and spindle No. 7, rotating at rate on average 20 rev/min, in range from 25 to 40 Pa and formula (I), from 15 to 80 wt % of compatible stickiness-increasing resin (B), and from 0.01 to 3 wt % of curing catalyst (C). Self-adhesive substrate, covered with solidified adhesive composition, and its application for production of self-adhesive labels and/or tapes are also claimed.

EFFECT: invention provides reduction of solidification time with preservation of adhesive properties, as well as preservation of cohesion in application of self-adhesive substrate in wide range of temperatures.

12 cl, 2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an adhesive cushion based on epoxy resins and glass fibre cloth, used to produce multilayer printed-circuit boards. The adhesive cushion is made using glass fibre cloth soaked with a mixture of epoxy diane resin, 4,4'-diaminodiphenylsulphone, nickel acetylacetonate and spherical particles of butadiene nitrile styrene carboxylate polymer with a diameter of 10-8-10-7 m, with the following ratio of components, pts.wt: epoxy diane resin 100, polymer 5-20, 4,4'-diaminodiphenylsulphone 15, glass fibre cloth 130, nickel acetylacetonate 1.

EFFECT: reducing warping of the multilayer printed-circuit board to no more than 0,1 mm.

1 tbl, 3 ex

FIELD: process engineering.

SUBSTANCE: invention relates to laminar materials for packages, particularly, to production of laminar re-sealing material. This material comprises substrate ply, soldering ply and glue ply arranged there between. Glue ply represents a thermal adhesive or pressure-sensitive glue with shear rate of 10-150 min at 40C at the load of 1000 g at 40C on test site of 12.5 mm 25 mm. Soldering ply comprises PE copolymer ply and, if required, extra PET, PE ply, say, LDPE and/or PP. This process allows application of thermal adhesive or pressure-sensitive glue, then soldering ply in a single process to produce re-sealing laminar material. Said laminar material can be used as a re-sealing cover at, for example, packing pan.

EFFECT: ruled out film separation.

9 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to the field of obtaining glue compositions, used in the production of adhesive polyvinylchloride (PVC) tapes, intended for wrapping gas- and oil-pipelines as an insulating and protective coating, as well as for carrying out repair works. The glue composition includes a perchlorovinyl resin, a plasticiser and an adhesion-improving additive. The composition additionally contains dichlorocyclopropanated 1,2-polybutadiene or dichlorocyclopropanated syndiotactic 1,2-polybutadiene in an amount from 1 to 15 wt.p. Dichlorocyclopropanated 1,2-polybutadiene with the weight average molecular weight from 8000 to 120000 is used. A degree of dichlorocyclopropanation in dichlorocyclopropanated 1,2-polybutadiene constitutes from 2.5 to 35.9%.

EFFECT: increased adhesion of an adhesive PVC tape to a metal surface.

3 cl, 1 tbl, 12 ex

FIELD: chemistry.

SUBSTANCE: pressure-sensitive tape for anticorrosion protection of steel pipes, used mainly in cases of repair and exploitation, contains vinyl base - tape, laminated with adhesive based on nitrile rubber, of the following composition: from approximately 30.7 to approximately 34.0% (wt/wt) of solid butadiene-acrylnitrile rubber (NBR); from approximately 0.57 to approximately 0.63% (wt/wt) of antioxidant; from approximately 9.7 to approximately 12.9% (wt/wt) of hydrocarbon resin; from approximately 1.52 to approximately 1.68% (wt/wt) of zinc oxide; from approximately 8.7 to approximately 9.5% (wt/wt) of liquid butadiene-acrylnitrile ribber (NBR); from approximately 4.0 to approximately 4.4% (wt/wt) of aluminium hydrosilicate; from approximately 5.5 to approximately 7.5% (wt/wt) of diisononylphthalate; from approximately 0.66 to approximately 0.74% (wt/wt) of soot; from approximately 1.5 to approximately 1.7% (wt/wt) of amorphous silica; and from approximately 25.8 to approximately 38.8% (wt/wt) of magnesium and calcium carbonate. It is ideal to apply tape in combination with primer, which enhances adhesion between pipe and adhesive part of tape.

EFFECT: good ability of tape to correspond to irregular surfaces, good elasticity, good shock-resistance, excellent adhesion to pipe, good cathode separation.

3 cl, 3 dwg, 3 tbl

FIELD: printing.

SUBSTANCE: invention relates to the field of printing. The stated device comprises several spaced at a distance (a, b) from each other storage panels (22; 23; 24). In the appropriate storage panel (22, 23, 24) at least one printing plate (08) is located or, at least, is adapted to be placed, which is taken from the plate cylinder (01) of the rotary printing machine, or the printing plate (08) placed on the plate cylinder (01). And, at least one control unit (31) is provided. The control unit (31) is arranged to install at least one end area facing towards the plate cylinder (01) of at least two of the storage sections (22, 23, 24) in their respective operating position delivered to the plate cylinder (01) at different times in the same position relative to the plate cylinder (01).

EFFECT: invention enables to improve convenience of delivering the printing plate to the plate cylinder.

26 cl, 24 dwg

FIELD: printing industry.

SUBSTANCE: invention relates to device for accumulating tympans to be delivered to impression cylinder in which several tympans designed for installing close to one another on cylinder in its axial direction are kept near each other. Said tympans designed for installing close to one another are kept vertically under backing in at least two planes vertically displaced relative to each other. Planes displaced relative to each other form first accumulating position for tympans, and backing, after placing of at least one of tympans kept in displaced planes onto said backing, forms second accumulating position.

EFFECT: possibility of quick and reliable replacement of several tympans on cylinder of printing machine either simultaneously or quickly in sequence.

36 cl, 36 dwg

FIELD: engineering of devices for accumulation of blankets, meant for feeding to cylinder of printing machine, and also technology for feeding blankets onto cylinder of printing machine.

SUBSTANCE: device for accumulation of blankets has holder, which in first working position holds blanket in first accumulating position, while blanket during transition of holder to second working position it freed from holder and leaves its first accumulating position. Below first accumulating position at a certain distance from it along vertical line second accumulating position is provided, in which prior to its feeding onto cylinder, blanket released by holder is positioned. Method for feeding blankets onto cylinder of printing machine includes placing blankets meant for feeding onto cylinder into accumulator for their length without mutual contact. Blankets meant for serial feeding onto cylinder are placed along their length one above another in accumulation positions, distanced from one another for certain distance along vertical line. Method also takes into consideration, that at least one blanket is fed onto cylinder only after its displacement from its vertically higher accumulating position to its vertically lower accumulating position.

EFFECT: possible fast and reliable replacement of several blankets simultaneously or one by one on the cylinder in printing machine.

2 cl, 36 dwg

The invention relates to accessories for cylinders used in printing machines, mainly, to the unit for separate mounting of the lower or bottom layers of the multilayer tires on transfer or offset cylinders

FIELD: engineering of devices for accumulation of blankets, meant for feeding to cylinder of printing machine, and also technology for feeding blankets onto cylinder of printing machine.

SUBSTANCE: device for accumulation of blankets has holder, which in first working position holds blanket in first accumulating position, while blanket during transition of holder to second working position it freed from holder and leaves its first accumulating position. Below first accumulating position at a certain distance from it along vertical line second accumulating position is provided, in which prior to its feeding onto cylinder, blanket released by holder is positioned. Method for feeding blankets onto cylinder of printing machine includes placing blankets meant for feeding onto cylinder into accumulator for their length without mutual contact. Blankets meant for serial feeding onto cylinder are placed along their length one above another in accumulation positions, distanced from one another for certain distance along vertical line. Method also takes into consideration, that at least one blanket is fed onto cylinder only after its displacement from its vertically higher accumulating position to its vertically lower accumulating position.

EFFECT: possible fast and reliable replacement of several blankets simultaneously or one by one on the cylinder in printing machine.

2 cl, 36 dwg

FIELD: printing industry.

SUBSTANCE: invention relates to device for accumulating tympans to be delivered to impression cylinder in which several tympans designed for installing close to one another on cylinder in its axial direction are kept near each other. Said tympans designed for installing close to one another are kept vertically under backing in at least two planes vertically displaced relative to each other. Planes displaced relative to each other form first accumulating position for tympans, and backing, after placing of at least one of tympans kept in displaced planes onto said backing, forms second accumulating position.

EFFECT: possibility of quick and reliable replacement of several tympans on cylinder of printing machine either simultaneously or quickly in sequence.

36 cl, 36 dwg

FIELD: printing.

SUBSTANCE: invention relates to the field of printing. The stated device comprises several spaced at a distance (a, b) from each other storage panels (22; 23; 24). In the appropriate storage panel (22, 23, 24) at least one printing plate (08) is located or, at least, is adapted to be placed, which is taken from the plate cylinder (01) of the rotary printing machine, or the printing plate (08) placed on the plate cylinder (01). And, at least one control unit (31) is provided. The control unit (31) is arranged to install at least one end area facing towards the plate cylinder (01) of at least two of the storage sections (22, 23, 24) in their respective operating position delivered to the plate cylinder (01) at different times in the same position relative to the plate cylinder (01).

EFFECT: invention enables to improve convenience of delivering the printing plate to the plate cylinder.

26 cl, 24 dwg

FIELD: printing.

SUBSTANCE: described is a method of mounting printing plate on plate cylinder equipped with a channel in which there are front and rear clamps clamping device, wherein rear clamping device is part of slide bars located inside channel to move along tension to front clamping device, wherein at stage of clamp slides together with rear edge of printing plate fixed in rear clamping device, first, moved to front clamping device, after which rear positioning element is mounted in position relative to slide to define preset removal rear clamp from second channel wall, and deactivating drive for clamping.

EFFECT: slides with rear clamping device are held in their clamping position along at least due to that strength of clamped printing plate acting on slide through rear slide positioning element presses on them in direction of second channel wall.

12 cl, 17 dwg

FIELD: manufacturing technology.

SUBSTANCE: invention relates to adhesive tapes, particularly to adhesive tapes with adhesive layer specific surface topography and use thereof for printing plates adhesion. Adhesive tape contains, at least, one contact adhesive layer. Contact adhesive layer has, at least, one recess, which does not reach any one of contact adhesive layer edges. Total volume fraction of all recesses in contact adhesive layer containing such recesses, is more than 50%.

EFFECT: enabling higher adhesive surface and adhesion force regardless of pressing pressure and preventing air and fluids ingress in adhesion edge zones.

13 cl, 5 dwg, 2 tbl, 3 ex

FIELD: printing industry.

SUBSTANCE: inventive printing system for fixation to a flexographic printing cylinder or sleeve located on a flexographic printing cylinder comprises a continuous first anti-adhesive backing and a self-adhesive damping layer to attach the printing system to a cylinder or sleeve. The self-adhesive damping layer is attached to the continuous first anti-adhesive backing and consists of at least two separate parts with different Shore hardness according to the A scale. In addition, a printing kit is provided for fixation to a flexographic printing cylinder or a sleeve located on a flexographic printing cylinder, including the system and printing form.

EFFECT: printing system has a high adhesion quality for fixation to a cylinder or sleeve and is configured to reuse the printing form in the event of inadequate attachment of the printing system to the cylinder or sleeve.

21 cl, 6 dwg

FIELD: manufacturing technology.

SUBSTANCE: invention relates to adhesive tapes, particularly to adhesive tapes with adhesive layer specific surface topography and use thereof for printing plates adhesion. Adhesive tape contains, at least, one contact adhesive layer. Contact adhesive layer has, at least, one recess, which does not reach any one of contact adhesive layer edges. Total volume fraction of all recesses in contact adhesive layer containing such recesses, is more than 50%.

EFFECT: enabling higher adhesive surface and adhesion force regardless of pressing pressure and preventing air and fluids ingress in adhesion edge zones.

13 cl, 5 dwg, 2 tbl, 3 ex

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