Impregnating composition for the material type synthetic leather
(57) Abstract:The essence of the invention: water, 50% dispersion of a copolymer of butyl acrylate, methyl methacrylate, methacrylic acid and glycidylmethacrylate when the mass ratio of monomers 62-64:31-33:3,3-5,3:0,45-0,95 accordingly, 100, kaolin 8-10, aniline dye 0,2-0,4, water 45-50. Mixed at 80-100oC kaolin, aniline dye and water, cooled to 25oC, is mixed with a dispersion of acrylic copolymer and is used for impregnation of the textile basis, followed by drying at 100-140oC. characteristics of the textile material with a basis of polyamide fibers: the stiffness in the longitudinal direction 10 cH, the coefficient of friction of 0.12, resistance to repeated bending at 20oC 22000 cycles, the light fastness 5 points, gain coverage 20-5 g/m2. table 1. The invention relates to a composition for the manufacture of materials such as artificial leather, in particular, for the impregnation of textile bases in the production of fancy material.Known composition for the manufacture of artificial skin /1/, comprising a binder aqueous dispersion of a copolymer of polyvinyl alcohol (PVA) and methyl acrylate (MA) or a mixture of the latter with styrene, filler and pigment is) 100 110
Filler 100 400
The pigment or dye 0,1 10,0
Water 500 1000
However, the known composition has a high hardness and coefficient of friction, low resistance to repeated bending.Closest to the proposed technical solution the prototype is a composition intended for the manufacture of a material such as artificial leather /2/.This composition is applied on the front and reverse side of the textile basis, provides improved water and light fastness, but it does not improve the resistance to repeated bending. The composition contains water acrylic dispersion-based polymer wastes that were selected during the wastewater production of acrylic dispersions, kaolin, mechanon and modifying additive alcohol telomers of the formula H - (CF2-CF2)n-CH2OH, where n=4-10 in the following ratio, wt.Polymer waste acrylic dispersions 25,0 35,0
Kaolin 5,0 15,0
LiteOn 5,0 10,0
Alcohol-telomere 0,025 0,050
Water the Rest
The material obtained on the prototype, has a high resistance to light, but has a higher stiffness and coefficient of friction, low resistance to multiple IIE their resistance to repeated bending.This objective is achieved in that the impregnating composition for the material type artificial leather comprising the water dispersion of acrylic copolymer, kaolin, dye and water as the acrylic copolymer contains a copolymer of butyl acrylate, methyl methacrylate, methacrylic acid and glicylearllic when the weight ratio gauges 62-64:31-33; 3,3-5,3; 0,45-0,95 accordingly, and as a coloring substance aniline dye in the following ratio of components, wt. hAqueous dispersion of acrylic copolymer (50% dispersion)
Aniline dye 0,2-0,4
On the dispersion of acrylic copolymer "Gramos 301" there are technical conditions: THE 6-02-57575 99-135-89.Analysis of the known similar technical solutions used for the manufacture of materials such as artificial leather, shows that they lack the features that distinguish the present technical solution to the prototype, which together with the known characteristics of the latter provide high consumer properties of the material by reducing the stiffness and coefficient of friction, increase resistance to repeated bending.the acrylic copolymer get emulsion copolymerization of methyl methacrylate (MMA), of butyl acrylate (BA), methacrylic acid (MAC) and glycidylmethacrylate (GMA) in the presence of emulsifier (sulfated neonols AF 9-12), initiator (ammonium persulfate) according to the following recipe, weight.MMA 31 33
BA 62 64
MAC 3,3 5,3
GMA 0,45 0,95
Sulfated neonol AF-12 4
The ammonium persulfate 0.3 to
Water module 1:1
Pre monomers MMA and 12.7 l; BA-26,1 l; MAK-1,9; GMA-0.33 l is loaded into the mixer No. 1, stirred for 10 min, then download an emulsifier in the amount 1,49 kg, stirred for further 10 min the Obtained monomer mixture further used for synthesis. In the mixer N 2 pre-prepare a solution of ammonium persulfate in water: 110 g of ammonium persulfate dissolved in 800 ml of demineralized water or condensate. Later in the synthesis reactor load of 36.5 l condensate and heated to a temperature 802oC. When operating the stirrer download from the mixer N 2 the first portion (250 ml) of an aqueous solution of ammonium persulfate and begin to dispense through the rotameter mixer N 1 Monomeric mixture. The total dosing time Monomeric mixture 2 h After 1 h after draining half of the volume of monomer mixture are downloading a second portion of a solution of ammonium persulfate (250 ml). By ASPA of ammonium persulfate in the amount of 300 ml and produce the extract for 30 min at a temperature of 802oC. after aging the finished product is cooled to 40-45oC and poured acrylic dispersion in the tank. For preparation of the impregnating composition take 8 mass.h. kaolin and 0.2 mass. including aniline dye direct red (TU 6-14-450-80), diluted with 45 mass.h. water at a temperature of 80-100oC, intensively stirred, cooled to 25oC and then injected 100 mass.h. water dispersion of acrylic copolymer (50% dispersion), again mixed and impregnated with the obtained composition, a textile basis of polyamide fibers (art. 55223), and then dried at 100-140oC.Example 2. Water acrylic dispersion prepared as in example 1. Take 10 mass.h. kaolin, 0.4 mass.h. aniline dye direct yellow fade resistant "O" ( GOST 13553-78), diluted in 50 mass.h. water at 80-100oC, intensively stirred, cooled to 25oC and then injected 100 mass. including water dispersion of acrylic copolymer (50% dispersion), again mixed and impregnated with this composition nonwoven basis of a mixture of 70% synthetic and 30% viscose (art. 935577), dried at 100-140oC.Example 3. Water acrylic dispersion prepared as in example 1. Take 9 of the masses.h. kaolin, 0.3 mass.h. analadult to 25oC and then injected 100 mass.h. water dispersion of acrylic copolymer (50% dispersion), again mixed and impregnated with this composition woven textile base of chemical fiber: 70% polyester and 30% viscose fiber art. 86-7 (TU 17-380-88), dried at 100-140oC.Example 4. A sealing compound is prepared according to example 3, but using stitch the basis of khlopkopryadilnaya yarn art. 912129, 912130 (TU 17 RSFSR N-12-1-89).Example 5 (the prototype). In a mixer, pour the water and with stirring download 0,038 masses.h. alcohol-telomere formula H-(CF2-CF2)n-CH2OH, where n= 4-10, 30 mass.h. water dispersion of acrylic copolymer (calculated on dry substance), 10 mass.h. kaolin, 8 mass.h. of lithopone. Water is added to 100 mass. including This composition is applied to the calico (art. 6938, 6427) with front and back sides, followed by drying with two sides at 100-105oC and calendarbut at 80-90oC. properties of the resulting materials are summarized in table.The table shows that the material on the proposed technical solution has high performance and tailoring properties: optimal for fancy materials hardness, low friction coefficient, Powys 4 times lighter what is known and can be operated at low temperatures. High technical and economic effect is achieved in a single process operation, i.e., simplified fabrication process of the material. Impregnation of the material such as artificial leather, comprising the water dispersion of acrylic copolymer, kaolin, dye and water, characterized in that, to reduce stiffness and friction coefficient and improve the resistance to repeated bending, he as the acrylic copolymer contains a copolymer of butyl acrylate, methyl methacrylate, methacrylic acid and glycidylmethacrylate when the mass ratio of monomers 62 64 31 33 3,3 5,3 0,45 0,95 respectively, and as a coloring substance aniline dye in the following ratio, wt.h.Aqueous dispersion of acrylic copolymer (50% dispersion)
Kaolin 8 10
Aniline dye 0,2 0,4
Water 45 50
FIELD: polymer materials.
SUBSTANCE: invention concerns amorphous light-sensitive cross-linked polymeric structure and provides structure including (i) amorphous cross-linked structure formed from matrix based on acrylate and/or methacrylate compound and cross-linking agent and (ii) photoreactive component capable of undergoing reversible photodimerization reaction. Cross-linked structures are characterized by good properties with shape-memory effect.
EFFECT: increased mechanical strength of material with desired property profile.
21 cl, 4 dwg, 2 tbl, 12 ex
FIELD: copolymers meant for usage in polymer binding agents for covers prone to swelling during heating.
SUBSTANCE: copolymer is described for usage in binding agent or as polymer binding agent in covers prone to swelling during heating, including a mixture of Newton copolymer and network copolymer, selected from a group including thixotropic and pseudo-plastic copolymers, while aforementioned Newton and network copolymers consist of links of substituted styrene and substituted acrylate and contain links of at least p-methylstyrene and 2-ethylhexylacrylate, with grammolecule ratio of p-methylstyrene and 2-ethylhexylacrylate ranging from 100/0 to 50/50. Also described is the cover prone to swelling during heating and method for producing the same, which cover includes polymer binding agent, foam-forming substances, carbon-forming substances and other normally used admixtures, featuring aforementioned copolymer as polymer binding agent.
EFFECT: optimized creation of coal and improved isolating properties of cover.
3 cl, 2 tbl, 8 dwg, 4 ex
SUBSTANCE: invention concerns curable thermoplastic elastomer mixes, their obtaining and application in production of items by cast or extrusion moulding. Curable thermoplastic elastomer mix includes: (a) 15 to 60 wt % of polymer or copolymer represented by complex polyalkylenephthalate polyether, and (b) 40 to 85 wt % of linked poly(met)acrylate or polyethylene/(met)acrylate curing resin combined with free radical peroxide initiation agent and organic diene co-agent in effective amount for linking the resin during extrusion or cast moulding of curable thermoplastic elastomer mix. After linkage the polymer or copolymer represented by complex polyalkylenephthalate polyether is present in the form of continuous phase, while the resin is present in dispersed phase. Such compositions are fit for production of rubber parts with excellent resistance to effect of oil lubricants and greases.
EFFECT: optimised residual compression deformation and Shore hardness, increased elastic constant during curing.
12 cl, 3 dwg, 2 tbl, 22 ex
SUBSTANCE: invention relates to mixtures of low molecular and high molecular acrylic polymers. The invention discloses an acrylic polymer composition for moulding or extrusion, which contains a mixture in molten thermoplastic high molecular acrylic material (HMAM) and thermoplastic low molecular acrylic material (LMAM). An alkyl(alk)acrylate based (co)polymer accounts for at least 70 wt % of the HMAM and LMAM. The HMAM is characterised by average molecular weight (Mw) between 40000 Da and 1000000 Da, and the LMAM is characterised by Mw ranging from molecular weight of entwinement (Me) (expressed in thousand daltons) to 250000 Da.The invention also discloses a method of preparing an acrylic polymer composition, versions of using and processing the acrylic polymer composition, as well as products made from said composition.
EFFECT: obtaining acrylic polymer compositions with improved processability.
36 cl, 4 dwg, 19 ex
FIELD: process engineering.
SUBSTANCE: invention relates to laminate used in glass panels, lenses etc. Proposed laminate comprises base made up of polycarbonate resin, first layer resulted from hardening acrylic resin hardening, second layer produced by thermal hardening of organosiloxane resin. Acrylic resin composition comprises (A) acrylic copolymer containing at least 70 mol % of repeating link of formula (A)
where X is hydrogen or methyl, Y is methyl, ethyl, cycloalkyl or hydroxyalkyl with the number of atoms of 2 to 5, or residue of UV radiation absorber based on triazine; blocked polyisocyanate compound; hardening catalyst; and (D) UV radiation absorber based on triazine. Note here that total content of UV radiation absorber based on triazine in formula (A) and as component (D) varies from 1 to 40 wt %. Composition of organosiloxane resin in proposed laminate comprises (E) colloidal silicon dioxide and (F) hydrolytic condensate of alkoxy silane. Invention covers also window glass made based on said laminate.
EFFECT: higher strength and longer life.
25 cl, 15 tbl, 50 ex
SUBSTANCE: disclosed is use of a) polyalkyl(meth)acrylate and b) a compound of formula (I), wherein residues R1 and R2 independently denote an alkyl or cycloalkyl with 1-20 carbon atoms, to make solar cell modules, primarily for making light concentrators of solar cell modules. (I). Also disclosed is a solar cell module and a version of said module. The solar cell module has operating temperature of 80°C or higher; full light transmission of moulding compounds in the wavelength range from 400 to 500 nm is preferably at least 90%; full light transmission of moulding compounds in the wavelength range from 500 to 1000 nm is preferably at least 80%.
EFFECT: improved properties of the module.
16 cl, 4 dwg
SUBSTANCE: invention relates to a polymer obtained via condensation polymerisation. The polymer is obtained from at least two monomers: acrylic monomer and alkylamine. Said polymer is modified such that it contains a dithiocarbamate salt group capable of cleaning one or more compositions containing one or more metals. The polymer has molecular weight of 500-200000.
EFFECT: obtaining polymers for various media as means of purification from metals, including waste water systems.
13 cl, 5 ex, 1 dwg
SUBSTANCE: described is use of a composition containing a polymer obtained from at least two monomers: acryl-x and alkylamine, where said polymer is modified such that it contains more than 55 mol % dithiocarbamic acid, capable of purifying one or more compositions containing one or more of the described metals.
EFFECT: polymers have multiple applications in different media, including sewage treatment systems.
12 cl, 1 dwg, 1 tbl, 3 ex
SUBSTANCE: invention relates to a composition for making articles. Composition contains at least one polyaromatic polyamide and at least one cross-linked polyolefin. Cross-linked polyolefin is obtained from at least one product (A) containing unsaturated epoxide, and at least one product (B) containing unsaturated carboxylic acid anhydride. According to invention, weight content of (A) and (B), designated respectively as [A] and [B], are such that ratio [B]/[A] varies from 3 to 14, preferably from 4 to 9. Invention also describes a method of producing a composition and use thereof for making a single-layer or multilayer structure.
EFFECT: technical result is smooth and glossy surface products, in particular, pipes, with very small amount or even complete absence of "adapter saliva".
34 cl, 2 tbl, 10 ex
SUBSTANCE: invention relates to a composition for making articles containing, wt%: from 33 to 40 at least one cross-linked polyolefin, where polyolefin is obtained from at least one product (A) containing unsaturated epoxide, and at least one product (B), including unsaturated carboxylic acid anhydride, and from 3 to 10 at least one plasticiser, and remaining part consisting of at least one polyaromatic polyamide. Weight content of (A) and (B), designated as [A | and [B] is such that ratio [B]/[A | ranges from 3 to 14. Described also is a method for preparing composition, as well as use thereof.
EFFECT: technical result is providing compositions for making articles having heat resistance, ageing resistance, Charpy impact strength at -40 °C higher than or equal to 7 kJ/m, modulus of elasticity in flexure less than 800 MPa, combined with uniform or smooth appearance of surface.
39 cl, 2 tbl, 1 ex
FIELD: construction industry, in particular, laminated materials, such as rolled polymeric floor coverings, in particular, linoleum.
SUBSTANCE: multilayer rolled polymeric 2.7 mm thick floor covering has base comprising lower layer of nonwoven needle-stitched material of polyester or polypropylene filaments or mixture of filaments having thickness of 1.3-2.0 mm, density of 200-360 g/m2, and upper polymeric layer composed of at least two polyvinyl chloride layers. Lower polyvinyl chloride layer has glass fabric or mineral paper used as reinforcement material and having thickness of 0.6-1.0 mm. Thickness of transparent face layer is 0.12-0.50 mm. Middle polyvinyl chloride layer of polymeric layer may foamed and provided with decorative relief pattern.
EFFECT: increased decorative effect, improved wear resistance, heat and sound isolating properties and sanitary and hygienic qualities of rolled covering.
2 cl, 3 dwg, 1 tbl, 2 ex