• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A METHOD FOR MANUFACTURING SHEET THERMOPLASTIC MATERIAL, including the flashing of polyvinyl chloride or a product of copolymerization of ethylene, propylene and ethylidene norbornene, taken in a ratio of 65: 30: 5 with additives, molding the resulting composition into a sheet, heating the sheet, pressing it and cooling it to a sheet, heating the sheet, pressing it and cooling to a sheet, heating the sheet, pressing it and cooling to a sheet, heating the sheet, pressing and heating to the sheet. that, in order to simplify the process, the sheet is heated up to. 100-140 seconds for 0.5-5 minutes, and pressing is carried out by passing the sheet between other moving strips with an early at 160220s under a pressure of 10-60 kgf / cm for 0.4-6 minutes and then at 50-140 With within 0.3-5 minutes
    公开号:SU1075955A3
    申请号:SU813322504
    申请日:1981-08-21
    公开日:1984-02-23
    发明作者:Бринкманн Ганс；Крэмер Бернхард；Шульте Герберт；Зоммермейер Уве
    申请人:Динамит Нобель Аг (Фирма)；
    IPC主号:
    专利说明:

    16 g 1225 2J The invention relates to plastics processing, in particular, to a method for the manufacture of thermoplastic sheet material which can be used as a floor covering or for decorative purposes. A known method of making a thermoplastic sheet material, including mixing thermoplastic with additives, shaping the resulting position into a sheet, heating the resulting sheet to 100-140 seconds, then applying to the roll and mixing with colored particles on it, cutting the sheet wound into a roll into strips, feeding a pack of lanes on a moving conveyor, passing a pack between heated rollers, the upper of which has a temperature of about a lower, and the subsequent cooling of the SI. The disadvantage of this method is the low resistance of the resulting sheet to shrinkage in the longitudinal direction under intense exposure to solar radiation. The closest in technical essence and the achieved result to the invention is a method of manufacturing a sheet thermoplastic material, comprising mixing by. Livinilchloride or a product of copolymerization of ethylene, propylene, and these | lindenorbornene, taken in a ratio of 65: 30: 5 with additives, forming the resulting composition into a sheet, heating the sheet, pressing and cooling to a temperature of the surrounding medium. According to a known method, a sheet is formed by feeding the composition onto a moving conveyor by passing the composition between rollers to form a sheet, which is then cut into particles, feeding them onto a moving conveyor followed by layering on an additional conveyor. The resulting piece of linen is heated in a high-frequency field, followed by treatment into a stream of heated air, cut into a block, the resulting block is fed into a container fed to a press, the block is pressed, followed by cooling and cutting into sheets. The resulting product has a high resistance to shrinkage, in particular when exposed to solar radiation 2 j. The disadvantage of this method is its multi-stage. The purpose of the invention is to simplify the process of making thermoplastic sheet material. The goal is achieved in that according to the method of manufacturing a sheet thermoplastic material comprising mixing polyvinyl chloride or a product of copolymerizing ethylene, propylene and ethyl boron, taken in a ratio of 65:30: 5, with additives, shaping the resulting composition into a sheet, heating the sheet, pressing it and cooling to ambient temperature, heat to 100-140 ° C for 0.5-5 minutes, and pressing is carried out passing it between two the moving sheet. tapes, first at 160–220 ° C under pressure of 10–60 kgf / cm for 0.4–6 min and then at 50–140 ° C for 0.3–5 min. In the mixing and feeding unit 1 continuously serves particles 2 of thermoplastic. The mixing unit 1 may also have a funnel 3 for the supply of thickened paints or conductive pastes for making the particles 2 with the shell. At the end of the mixing unit 1, the particles 2 are continuously fed from the hopper through an unloading opening 4 to the moving conveyor 5, which is rotatably mounted in the support 6, and its belt is guided through the guide rollers 7 and 8. At the end, the conveyor 5 is equipped with a rotating device 9, serving to move the conveyor across to its transport direction. From the conveyor 5, the particles 2 continuously fall on the endless transport belt 10 moving at a speed of 0.3-3 m / min around the guides 11 and 12. In accordance with the loading degree of the conveyor 5, a layer of raw material 13 is applied to the transport belt 10 in the desired width and depending on the speed of the transport tape - the desired thickness. Then a sheet of free thermoplastic particles is passed through a heating device that serves to heat the sheet to 100-140 ° C for 0.3-5 minutes, for example, using infrared emitters 14 and 15, affecting the upper surface of the raw material layer 13 and the lower side after heating the raw material layer to the desired temperature, it is fed to continuous pressing, which is carried out on a 2.50-5 m long press consisting of a lower oscillating plate 16 and an upper fixed plate 17, the upper surface of the raw material layer being covered an endless conveyor belt 18 directed around the guide rollers 19 and 20, and between the conveyor belts 10 and 18, a layer of raw material is fed to a swing press. The swing press 16, 17 operates at a constant pressure of 10-60 kgf / cm, which, depending on the thickness of the raw material layer and the operating speed, i.e. transport speed. The press 16 17 is subdivided into a heating zone 21 with a length of 1.25-3 m and a cooling zone 22 with a length of 1-2.50 m. The heating zone 21 is equipped with a device for heating resistance, and the cooling zone 22 is made of water-cooled channels. For a side restriction of the raw material layer, rotating endless support strips 23 are provided, directed black rollers 24. After leaving the press, the finished sheet is fed, for example, indirectly to the dividing device 25 with a knife 26, where it is split into sheets 27 and 28. In addition , it is possible to install a pair of rolls for embossing the laminate directly behind the exit of the press. Example. Particles of size 30 X 12 X 5 mm, painted in three different colors and consisting of 60 weight. polyvinyl chloride with a value of K 68, obtained by suspension polymerization of 20 weight, h. dioctyl phthalate, 20 wt. h. chalk, 0.7 weight.h. titanium dioxide,. 0.15 weight.4. irgacin-yellow, 0.15 weight.h. chrome-green and 1 weight.h. di-octyl tin as a stabilizer, is continuously formed into a sheet 25 mm thick and 1300 mm wide with a productivity of 400 kg / h. The speed of the layer through the press is 0.6 m / min. After heating to 100 ° C for 1 min by means of an infrared emitter, the sheet is pressed under a pressure of 40 kg / cm with further heating to 190 ° C for 3 minutes in a 1.8-meter-long heating zone of the press, followed by cooling to 2, 6 min under compressed pressure in a 1.6 m long ohlahsdeni zone. After being removed and cooled to ambient temperature, a sheet 5 mm thick is obtained, having a perfect surface. Example 2: An example is repeated with the difference that the particles are of a size of 6 X 6 X 2 mm, painted in three different colors and consisting of 80 weight. polyvinyl chloride according to example 1, 40 wt.4. dioctyl phthalate, 50 weight.4. chalk, 1 weight. h. titanium dioxide, 0.2 weight. h. cadmium red 0.1 wt.4. anthraquinone blue and 2weight.4. barium-cadmium stabilizer, continuously formed into a sheet with a thickness of 50 mm and a width of 1300 mm, etc., with a productivity of 600 kg / h. At this speed, the press pass rate is 0.45 m / W1n, the sheet is heated up for 1.25 minutes at 170 ° C and under a pressure of 60 kgf / cm for 4 minutes, and cooling up to process for 3.2 min under compressed pressure. The resulting sheet has a thickness of 10 mm and a flawless surface: I Example 3. Repeat example 1 with the difference that the spherical particles with a diameter of 10 mm and a thickness of 2 mm, painted in two different colors and consisting of 100 weight. h ternary polymer of ethylene, propylene and ethylidenenorrhenen in the ratio of 65:30:: 5, 200 weight.h. calcium carbonate, 5 weight.h. titanium dioxide, 5 weight.h. cadmium yellow, 1 weight.h. stearic acid, 1 weight.h. calcium stearate, 5 wt .4. eskorets stabilizer (based on petroleum resin / 10 wt. 4. polyethylene wax and 5 parts by weight of dicumyl peroxide, continuously formed into a sheet 15 mm thick and 1000 mm wide with a productivity of 200 kg / h. At the same time the speed of sheet passing through the press It is 0.75 m / min, the sheet is heated to and under a pressure of 30 kgf / cm for 3 minutes, and cooled to 80 for 3 minutes under pressure and a sheet 3 mm thick is obtained, which has a perfect surface. EXAMPLE 4 Example 1 is repeated. The only difference is that the sheet is heated until 5 minutes, pressing at 160 s and under a pressure of 60 kgf / cm for 6 minutes, and cooling to 50 ° C for 5 minutes, 4 mm thick, having a perfect surface. Example 5. Repeat example 2 with the difference that pressing is carried out at 220 ° C under a pressure of 60 kgf / cm for 24 s and cooling to 140 ° C for 18 s. The resulting sheet with a thickness of 10 mm has a flawless surface. 3 with the difference that pressing is carried out at a pressure of 10 kgf / cm for 6 minutes. The resulting sheet is 5 mm thick and has a flawless surface. Example7. Example 3 is repeated with the difference that heating is carried out for 30 seconds. A sheet having a thickness of 5 r-iM is obtained, having a flawless surface. The products of examples 1-7 and comparative examples A to g are processed into samples of size 50x50x5 mm, which are subjected to a test for resistance to shrinkage when exposed to ultraviolet rays in the region of 200-400 nm, carried out at room temperature for 20 days. In addition, strength, tensile strength in both directions (according to German Standard 53455) and elongation at break (also according to German Standard 53455) are determined.
    The results of the experiments are given in the table.
    P
    Comparison of the results of examples 45-1 and 5 with the results of comparative examples C and D indicates that during the process under conditions outside the proposed limits, the desired quality of the product either degrades cQ or Ds does not improve.
    The proposed method contains a significantly smaller number of operations, is technologically simple compared with the known method, and at the same time sheets with good physicomechanical properties can be obtained by this method. Product A was obtained according to the Cli method. Product B was obtained according to the well-known method 2. Product B was obtained analogously to Example 1 with the difference that the sheet was heated to 90 ° C for 20 seconds, pressed at 150 ° C and under a pressure of 5 kgf / cm within 15 s and cooling to 10 s at a pressing pressure (i.e., the product obtained under conditions outside the application of the limits). Product D was obtained analogously to example 5c, the difference being that heating was carried out to 150 ° C for 5.5 minutes, pressing - at 230 ° C and under a pressure of 65 kgf / cm for 0.3 minutes and cooling - to 5.5 min under pressure (i.e., the product obtained under conditions outside the stated limits).
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING SHEET THERMOPLASTIC MATERIAL, comprising mixing polyvinyl chloride or a copolymerization product of ethylene, propylene and ethylidene norbornene, taken in the ratio! 65: 30: 5, with additives, molding the resulting composition into a sheet, heating the sheet, compressing it to ambient temperature , characterized in that, in order to simplify the process, the sheet is heated, ·. before. 100-140 ° C for 0.5-5 minutes, and pressing is carried out by passing a sheet between other moving tapes at first at 160 220 ° C under a pressure of 10-60 kgf / cm 2 for 0.4-6 minutes and then at 50 -140 ° C for 0.3-5 minutes
    5955 A
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE3031839A1|1982-03-04|
    YU202681A|1983-10-31|
    ES8205631A1|1982-06-16|
    US4396566A|1983-08-02|
    AT25351T|1987-02-15|
    DE3031839C2|1983-10-20|
    JPS5774121A|1982-05-10|
    ES504883A0|1982-06-16|
    DE3175895D1|1987-03-12|
    EP0046526A2|1982-03-03|
    EP0046526A3|1984-05-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3031839A|DE3031839C2|1980-08-23|1980-08-23|Process for the continuous manufacture of a patterned sheet of thermoplastic material|
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