(57) Abstract:Usage: used for facing edges of furniture parts with different materials. The inventive glue melt contains a copolymer of ethylene with vinyl acetate 25 - 45%, glycerol ester of modified rosin 25 - 35% , a product of incomplete esterification of rosin with diethylene glycol to an acid number of 50 to 80 mg KOH/g 5-15%, the filler 15 to 40%. Glue melt get a consistent mixture at 100 - 150°C glycerol ester of rosin, a product of incomplete esterification of rosin with diethylene glycol, copolymer and filler. Characteristics of adhesive: time of setting 4-9, the melt flow index of 25 to 30 g/10 min, the strength of adhesive joints under uniform margin of 4.5 - 5.1 MPa, the strength of the adhesive bond peeling plastic edging at - 30°C 4 points. table 2. The invention relates to a hot melt-based copolymer of ethylene and vinyl acetate used in the furniture industry for obliczania edges of furniture items.Known hot melt adhesives for these purposes, but they are not cold-resistant [1, 2]. In freezing temperatures the adhesive properties of these adhesives drop sharply when exposed to mechanical loads, the bond destroyed what cetecom, the filler and the resin . The lack of hot melt glue TRC-2 is a low bond strength values obtained in this adhesive at temperatures below zero, resulting in the exfoliation of the edging material is not furniture items during transportation of furniture in winter conditions.The purpose of the invention is to improve the durability of the adhesive joints at temperatures below zero.This objective is achieved in that the adhesive containing a copolymer of ethylene with vinyl acetate, adhesive additive and filler, as adhesive additives contains glycerol ester of modified rosin, and further comprises a product of incomplete esterification of rosin with diethylene glycol to an acid number of 50 to 80 mg KOH/g in the following ratio, wt.%:
A copolymer of ethylene
with vinyl acetate 25-45
modified rosin 25-35
The product is incomplete Eteri-
classification of rosin, dieti-
Filling The Rest.Frost resistance of adhesive joints on this glue-melt is estimated at 2 points in 5 point rating system.Introduction in the adhesive composition of the product of incomplete esterification of rosin diethylenglycol peeling edge materials on furniture items during transportation in winter conditions.In the formulation of hot melt glue as a polymer base used is a copolymer of ethylene with vinyl acetate or a mixture of copolymers with a melt flow index of 25 to 50 g/10 min and a mass fraction of vinyl acetate 21-30%.The product of incomplete esterification of rosin with diethylene glycol receive a mixture of diethylene glycol and rosin in the ratio of 17.5 : 100 at a temperature of 260-270aboutC for 6-10 hours to obtain the product with an acid number of 50 to 80 mg KOH/g, and is a viscous yellow resin.In the adhesion additive and the product of incomplete esterification of rosin with diethylene glycol is used extraction, tall and gum rosin.Glue melt get a consistent mixture at a temperature of 100-150aboutWith all components: adhesive additives, the product of incomplete esterification of rosin with diethylene glycol, EVA copolymer and filler.Examples of specific formulations of hot melt glue is presented in table. 1.Physico-mechanical properties of hot melt glue is presented in table. 2.In addition to increasing the strength of adhesive joints at temperatures below zero, improve plastic properties of the adhesive composition, which has a positive effect on technology is neetsa duration of mixing, when gluing furniture glue melt more evenly on the details and wets them well.The invention is implemented valid means without increasing the complexity of the manufacturing process of hot melt glue. GLUE MELT, comprising a copolymer of ethylene with vinyl acetate, adhesive additive - ether resin and a filler, characterized in that, in order to increase the strength of adhesive joints at low temperatures, it contains as adhesive additives glycerol ester of modified rosin and a product of incomplete esterification of rosin with diethylene glycol to an acid number of 50 to 80 mg KOH/g in the following ratio, wt,%:
A copolymer of ethylene with vinyl acetate 25 - 45
Glycerol ester of modified rosin 25 - 35
The product of incomplete esterification of rosin with diethylene glycol to an acid number of 50 to 80 mg KOH/g 5 - 15
SUBSTANCE: invention relates to ethylene copolymers-based adhesive compositions used as adhesives when depositing polymeric protective coating on metallic surface utilizing extrusion and co-extrusion techniques and winding thermosetting multiple-layer adhesive tape. Using composition containing ethylene/vinyl acetate copolymer, silicate filler, and modifying agent (resin OSR-100) results in providing preservation of high adhesion and strength characteristics and resistance to cathode peeling when lowering metal temperature heating to 100-130°C in double-layer coating structure and also ensuring high values of adhesion strength for ground epoxide layer in triple-layer coating structure.
EFFECT: enhanced adhesive properties in multiple-layer coating applications.
FIELD: adhesion materials.
SUBSTANCE: invention relates to adhesion compositions designated for their applying on synthetic fabrics, in particular, for their doubling. The composition consists of the following components, mas. p. p.: copolymer of ethylene with vinyl acetate, 100; blocked polyisocyanate, 1.5-6.0; filling agent, 1-20; stabilizing agent, 0.1-1.0, and resinous agent for enhancing stickiness. The claimed composition shows the enhanced defoliation strength from synthetic fabrics.
EFFECT: improved, enhanced and valuable properties of composition.
1 tbl, 7 ex
SUBSTANCE: adhesive composition contains an ethylene and vinyl acetate copolymer and a modifying additive. The modifying additive is silicon dioxide with particle size 100-300 nm. The modifying additive enables to increase stability of the adhesive composition and cohesion of the glue joint.
EFFECT: invention increases cohesion strength and elasticity of the glue joint, increases thermal stability of the adhesive, reduces its cost and widens the field of use of melt adhesives based on an ethylene and vinyl acetate copolymer by increasing the range of glued substrates.
FIELD: packaging industry.
SUBSTANCE: film for the manufacture of a fused label contains the core layer and the hot-melt layer. The core layer has a first and a second surface, and the hot-melt layer has an inner surface and outer surface. The inner surface of the hot-melt layer is located above the first surface of the core layer. The hot-melt layer contains a very low-density polyethylene, high density polyethylene and alkene copolymer selected from the group containing a copolymer of alkene and vynilcarboxylate, a copolymer of alkene and a methacrylic acid, alkene copolymer and alkyl methacrylate, a copolymer based on the alkali metal salts or zinc of methacrylic acid and an alkene, and the mixture of at least two of the above alkene copolymers.
EFFECT: manufacture of film for improvement of methods to label products using fused labels, improving the quality of labeled products and improving the technological properties of the film for fused labels.
20 cl, 1 tbl, 2 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to heat-fusible welding cord intended for bonding floor coating elements containing copolymer selected from the group consisting of polymers based on acrylic acid, methacrylic acid or maleic anhydride, polyethylene and copolyamide. Invention relates to floor coating including seam made on using said welding cord in compliance with this invention. Invention may be used for bonding elements of floor coating elements composed of coating based of polyolefines, PVC, linoleum and rubber.
EFFECT: welding cord for bonding floor coatings.
14 cl, 5 dwg, 11 tbl
SUBSTANCE: invention relates to hot-melt adhesives. The hot-melt adhesive contains 5-40 wt % of a copolymer based on ethylene and C3-C20 α-olefin, which is obtained by metallocene-catalysed polymerisation, 10-65 wt % of tackifying resin, 0-35 wt % of a plasticiser and 0.01-30 wt % of additives. The additives are selected from stabilisers, adhesion promoters, fillers or pigments, waxes and/or other polymers, wherein the total amounts to 100%. The copolymer is a block copolymer having invariable elastic properties in the range of 0°C to 25°C, measured as a ratio of the storage modulus E′ according to (E'0C-E'25C)/E'25C<1.5.
EFFECT: method improves process properties of the hot-melt adhesive while preserving mechanical properties in the temperature range to 50°C.
18 cl, 5 ex
FIELD: adhesive compositions for polyvinyl chloride-based adhesive tapes.
SUBSTANCE: claimed adhesive contains perchlorvinyl resin, plasticizer, pine-wood rosin, and filler. Mixture of dioctylphthalate and chlorinated alpha-olefins, obtained from waste of ethylene oligomerization, is used as plasticizer, and activated mixture of natural zeolite and calcium oxide is used as filler. Adhesive tapes of present invention are useful as sealing and protective coatings for gas and oil line coil.
EFFECT: polyvinyl chloride-based adhesive tapes with improved adhesive quality and reduced plasticizer migration from tape into adhesive tape.
3 ex, 1 tbl
FIELD: gluing and sizing compositions.
SUBSTANCE: invention relates to the essentially anhydrous sizing composition and an aqueous sizing composition used in sizing paper and cardboard. Essentially anhydrous and an aqueous sizing compositions comprise gluing substance, non-ionogenic surface-active substance, an anionic surface-active substance and a monohydric alcohol. Method for preparing an aqueous composition involves homogenization of gluing substance in the presence of surface-active substances and monohydric alcohol. Invention provides preparing sizing compositions that can be homogenized easily, i. e. they represent dispersions or emulsions formed by application of insignificant shearing forces, for example, such as stirring and provides preparing sizing compositions that are stable in storage.
EFFECT: improved preparing method, improved and valuable properties of compositions.
15 cl, 6 tbl, 3 ex
FIELD: soft wares, paper.
SUBSTANCE: compound is intended for pulp materials hydrophobisation and can be used in pulp and paper industry and at paper and board manufacturing. Compound contains modified thallous galipot, paraffin, thallous fatty acids and balancer at defined components ratio. In the capacity of balancer sodium lauryl sulfate, sodium laureth sulfate, cocoamidopropylbetain or cocoamidopropylaminochloride is used.
EFFECT: compound refinement for hydrophobisation of pulp materials, supplying of its hydrophobization efficiency and storage life duration.
5 cl, 1 tbl
SUBSTANCE: adhesive composition contains a combination of butadiene-styrene thermoplastic elastomers with a linear or radial structure, glycerine rosin ester, petroleum resin, dibutylphthalate, quinol ether and an organic solvent.
EFFECT: composition increases adhesion strength of different flexible substrates, for example rubber, leather, textile materials, artificial leather and other materials.
3 tbl, 5 ex
SUBSTANCE: glue composition includes perchlorovinyl resin, plasticiser and adhesion-increasing additive. Composition additionally contains hydroxylated 1,2-polybutadiene or hydroxylated syndiotactic 1,2-polybutadiene in quantity from 1 to 15 wt.p.; hydroxylated 1,2-polybutadiene with average weight molecular weight from 8000 to 12000 being applied. Degree of hydroxylation in hydroxylated 1,2-polybutadiene consistitutes from 2 to 27%.
EFFECT: increased adhesion of sticky PVC-tape to metal surface.
3 cl, 11 ex, 1 tbl
SUBSTANCE: adhesive composition includes perchlorovinyl resin, plasticiser and adhesiveness-increasing additive. Composition additionally contains epoxidated 1,2-polybutadiene or epoxidated syndiotactic 1,2-polybutadiene in quantity from 1 to 15 wt.p.; epoxidated 1,2-polybutadiene with average weight molecular weight from 8000 to 12000 being applied. Degree of epoxidation in epoxidated 1,2-polybutadiene consistitutes from 4 to 33%.
EFFECT: increased adhesion of sticky PVC-tape to metal surface.
3 cl, 11 ex, 1 tbl
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
SUBSTANCE: invention relates to obtaining resin for increasing adhesiveness of rubber mixtures and can be used in tyre and rubber industry. Resin contains, wt %: rosin - 55-70, eutectic melt of ε-caprolactam - 5-8 with N-isopropyl-N′-phenyl-n-phenylenediamine - 15-25 and zinc oxide - 7-15.
EFFECT: invention makes it possible to increase adhesiveness of rubber mixtures in duplicating and adhesion of rubber to metal, with resin-containing vulcanisates containing high protective action against thermooxidising and ozone ageing.
3 tbl, 7 ex
SUBSTANCE: glue composition by invention contains indene-coumarone resin, rosin, bitumen, pine pitch, talc and graphite with the following component ratio, wt %: indene-coumarone resin 24.0; rosin 21.0; bitumen 6.5; pine pitch 2.0; talc 40.5; graphite 6.0. Thereof application makes it possible to produce lenses with diameter to 150 mm with thin edge and thin centre. Ratio of lens curvature radius to diameter R/D≥0.5 with accuracy N=2, ΔN=0.2.
EFFECT: creation of plastic glue composition with small shrinkage at heating with the following cooling.
SUBSTANCE: invention relates to colophony ethers that feature appropriate colour, stable colour and/or flavour to be used in nonwoven materials, nonwoven products made of colophony ethers and/or containing the latter and to production and application of that ethers and products, for example, adhesives. Production of colophony ether comprises colophony disproportionation in contact between colophony and disproportionation agent. Disproportionated colophony with PAN smaller than 45 is brought in contact with attachment agent. Colophony adduct is brought about with additionally decreased PAN number. Colophony adduct is brought in contact with polyatomic alcohol containing approximately 20 wt % or less of pentaerythrol to get the colophony ether. Colophony ether features the flavour intensity smaller than 80% relative to colophony ether obtained with the help of 100% pentaerythrol. Adhesive contains said colophony ether. Nonwoven product contains said adhesive.
EFFECT: better characteristics, appropriate colour, stable colour, faint flavour to be used in nonwoven materials as an adhesive.
23 cl, 6 tbl, 6 ex