CS225436B1 - Laminated flat figure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to laminates having high thermal insulating properties, characterized by heat removability, in particular floor coverings, consisting of a plasticized PVC-based covering layer in the form of a foil printed on the underside. emulsion PVC, containing the necessary ingredients for the properties of the final product · It also consists of a bonding layer and a textile backing layer. · The production of all kinds of planar structures, namely floor coverings, is aimed at achieving the most optimal physical-mechanical properties, ie dimensional stability, finger resistance coherence of layers, etc., with available technological processes and raw materials used. The determination of the optimum ratio of the individual components, in particular for the bonding layer, is subject to the paste requirement, which must have the optimum viscosity necessary for transporting the piping cd to the point of transport to the processing site by pumps. must be constant during storage for 48 hours.

The prior art solutions to achieve maximum dimensional stability in the laminates in question consist mainly in examining and assessing pastes using various components. As fillers mostly mineral fillers are used, especially limestone, chalk, kaolin, etc. When using these fillers, it is desirable to use these in their maximum amount, which is all dependent on the quality of the laminated flat formations, ie their utility properties and in a manner where the material composition, in particular of the bonding layer, must ensure the properties

225 436 required for the transport of these pastes, the bonding effect and, last but not least, a constant value for storage. Inadequate determination of the proportions of the components and maximum use of mineral fillers leads to insufficient application of the paste to the substrate, or insufficient cohesiveness of the paste connecting the underlying textile to the central foil, or its viscosity is cut and cannot be treated by pumps and piping. Further, the dimensional stability is solved by free precipitation at higher temperatures at various stages of the technological process or on the finished product. The hitherto known construction of floor coverings does not guarantee the most optimal physico-mechanical values and namely dimensional stability.

One group consists of flooring, in particular based on polyvinyl chloride and its copolymers, with a textile-type insulating underlay. They are manufactured using a large number of different textile backing materials which are impregnated to achieve the required elastic properties and bond to the top of the flooring with suitable binder in the form of pastes, stretch films, rubber latex, polymer dispersions, etc. presently the best thermal insulation properties and consists of a capsule or tread layer based on soft PVC in the form of a film of 0.3 0.5 Μ », imprinted on the underside, a central layer based on softened emulsion PVC film with a thickness of 0.6 & B, 0 mm, containing the necessary ingredients for the properties of the final product. It also consists of a laminating layer of 0.3 $ 0.5 mm thickness and a textile-type insulating pad with a thickness of 2.0 * ^ 3.5 mm,

This type of flooring is then characterized by the following insulating and physico-mechanical properties:

Heat sensibility / according to ČSN 74 4506 / 2,5 3, <K / 10 min., Permanent deformation max. 1 mm, impact sound insulation 15 & 17 dB, abrasive wear / Ener, met.A / max, 0,08 mm dimensional stability 0,25 ^ 0,5%

The main drawback of the known types of flooring is the lack of dimensional stability and that the permanent deformation is still high. These disadvantages, which are among the primary utility properties, directly affect the housing culture.

22S 436

Another group consists of carpet flooring, which are characterized by good thermal insulation properties. However, their wider use is prevented by many negative properties such as low resistance to static load, low resistance to mechanical wear, difficult cleaning, etc.

Moreover, the cost of these floor coverings is also very high.

The aforementioned drawbacks of the prior art solutions are overcome by the novel construction type of the laminate according to the invention. It is a floor covering lowered from a textile-type insulating pad with a thickness of 1.0 * 2.0 mm after lamination, provided with a bonding layer based on softened PVC and two softened foils based on softened PVC. It is an object of the present invention to provide a particular design of a combination of individual components, in particular for a bonding deposit. which is formed by a combination of emulsion / pasty, respectively.

For non-paste-forming / and suspension PVC, whereby the weight parts / hereinafter referred to as mw / e mul PVC is dosed 1 ** 10 mw, slurry PVC and 40 41 60 mw. mineral fillers such as limestone, chalk, kaelin and the like. 20 * 25 wt%, wetting agents using 4-6 hEi ^ d surfactants and n. butanol may be advantageously used for this combination. plasticizers can be used dioctyl phthalate, dibutyl phthalate or dioctyl adip 4 $. The surfactants may, in this particular case, be a triethanolamine-heb® olosphite mixture of oleic acid and nine essential oils,

Compared to the known construction types of flooring, the flooring according to the invention is advantageous in particular in that the dimensional stability improves the permanent deformation expressed by DIN 51 955-EN. Other utility properties and parameters, such as 'abrasion resistance', sound insulation properties, coherence of layers, color fastness, etc. are retained.

The following examples and Example 1 are given for clarification

On a felt weighing 350 450 g / »^ and pre-laminating 3» 7 + 0.5 n »» composed of 3G% polyester waste fibers © 70% refined synthetic and natural fiber waste, reinforced by impregnation with an aqueous dispersion of polyacrylate, is in quantity up to 500 g / m, which corresponds to the thickness of the coating up to 0.3 mm, applied with the following composition:

«· 3 -

223 438

PVC eMulsion / paste-forming or non-paste-forming / hméřd. 18 PVC suspension non-forming 3 Dioctyl phthalate 20 May Microailetite, particle size 0.063 - 1% 54 Surfactants which:

is a 6-percent oleic acid solution of CH 2 (CIL, e 0¾ CCHg)? COOH 5 this bonding layer is pregelatinised at 130 ° C.

In a further operation, the upper part of the flooring, composed of two covering / foil foils - is applied to this material at 17 ° C - 5% thick fillers / thickness 0.30 mm and a central thickness 0 , 30 mm * Finally the product is treaded, dimensionally stabilized, cooled and adjusted · The flooring obtained has the following characteristics:

heat removability / according to ČSN 74 4506 / 2,7 K / 10 Min »permanent deformation 0,68 mm improvement of impact sound insulation 16 dB, abrasive wear 0,07 mim, dimensional stability 0,1%

Example 2

Similar to Example 1 except that the following reduction is used for the bonding deposit:

PVC emulsion / paste-forming, resp. hn.d.

non - monsters / 23

PVC 3suspension non-mono-forming 2

Dictyl phthalate 21

Limestone, non - ground 49

Surfactants 5

CH ₃ (CH ₃ ) = CH ₂ (CH ₂ ) ₇ COOH

The flooring thus obtained achieves the following properties: heat removability / according to ČSN 74 4506 / 2.7 K / 10 ain, permanent deformation 0.69 mm improvement in sound insulation 16 dB, abrasive wear 0.07 dimensional stability 0.13 ⁴¹ 0.14 %

Example 3 228 ίμ

Similar to Examples 1 and 2, except that the following combination is used for the bonding deposit:

Emulsion / paste-paste PVC, if not impregnating / 3 PVC suspension non-paste-forming 25 Dioctyl phthalate 22 Micronized limestone 45 Surfactants

CH ₃ (CH ₂ ) = 0¾ (CH ₂ ) ₇ COOH 5

The flooring obtained in this way achieves the following characteristics:

removable warm / according to ČSN 74 4506 / 2,7 K / 10 min.

permanent deformation 0,68-0,69 kur improvement · impact sound insulation 16 dB, abrasive wear 0,07 dimensional stability 0,14 & 0,16%

PVC emulsion can be used for all three types of examples:

a / paste type EP 702

KO value 68 _e critical solubility temperature 100 'impurity content 2% sieve residue 0,063 mm * 0,3% paste viscosity max, 4f)''$ b / paste-forming type E 66 KO value 70 critical solubility temperature 105 ^e impurity content 5 & residue mesh 0,063 mm - 0,3% viscosity of paste max, · $ c / non-foaming type NN K ~ value 56 critical solubility temperature 90® residue on mesh 0,063 mm - 28% d / non-foaming type E 62 K - value 61 critical temperature 102 ° rest on the mesh 0,063 - £ 7% »· 5 <M

Claims (2)

SUBJECT OF THE INVENTION 225 438 1. A laminated sheeting, in particular for pre-facing coverings, comprising a textile backing layer, a bonding layer, a central layer and a covering layer, characterized in that the bonding layer is 15 * 30 ha. and pulsating PVC, 1 10 ha. suspension © PVC, 40 & 60 ha ^ d. aineral filler, 20 ** 25 hw '. and 4 & 6 hmé'd. surfactants. 2. A laminated sheet according to claim 1, characterized in that the bonding layer additionally comprises up to 2 coils. of n-butanol.