• 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:
    1. Cord formed of at least one plastics monofilament, characterised in that plastics are used consisting of 99 to 86% by weight polyvinylidene-fluoride and 1 to 14% by weight acrylates.
    公开号:SU1082312A3
    申请号:SU813339348
    申请日:1981-09-30
    公开日:1984-03-23
    发明作者:Таппе Гюнтер；Гаспер Бертрам；Лаубенбергер Герберт；Вейсс Рихард
    申请人:Динамит Нобель Аг (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to the manufacture of musical instruments, bows, crossbows and rackets for playing in hours, in particular, to the method of making a string. A known method of making a page from a polymer consists in extruding a tow from a polymer melt from a group including polyamide polyurethane, polyester, polyolefin and modified polyvinyl chloride, followed by cooling the tow to ambient temperature, preferably using polyamide C 13.; The method consists in the fact that the mechanical properties of the resulting string, in particular its elasticity and ability to return to its original position, are not completely satisfactory. . The aim of the invention is to improve the mechanical properties of the string. The goal is achieved in that according to the method of making polymer string, including extruding the polymer melt as a tow, followed by cooling it to ambient temperature, a mixture of 79% by weight polyvinylidene fluoride, 3.5% by weight polymethyl methacrylate and 17.5 wt.% Of the graft copolymer of vinylidefluoride and ethyl acrylate, taken in the 80: 2 ratio, are first cooled to 60-150d, additionally axially stretched — at this temperature: 3–10, then cooled about ambient temperature, followed by winding on the rod with the tensioning force and vscherzhkoy 150-300 for 5-60 min. Example 1. With a single-bed extruder, an extruder is extruded consisting of 79% by weight, polyvinylidene fluoride, 3.5% by weight polymethyl methacrylate and 17.5% by weight of rivet copolymer made from 80% vinylidene fluoride and 20% ethyl acrylate (total polyvinylidene fluoride: 93 wt.% / tow with a diameter of 2.6 mm at a melt temperature of 275 ° C, followed by cooling in a glycerol bath with a temperature of 1A5 ° C to the temperature of the bath. Then burn the axially stretch at this temperature in a ratio of 1: 4. Thus, a monofilament of 79% by weight of polyvinylidene fluoride, 3.5 V % polymethyl methacrylate and 17.5 wt.% grafted copolymer of 80% vinylidene fluoride AND 20% ethyl acrylate, having a diameter of 1.3 mm, are cooled in a bath with temperature. The monofilament cooled to room temperature is heated on steel rollers with uniform tension 250 N with a subsequent exposure for one hour. After winding, the monofilament can be used directly. Example 2. Example 1 is repeated with the difference that the extrusion is carried out at 250 ° C and the axial stretching of the resulting tow is 1: 3 at 150 ° C winding the monofilament cooled to room temperature with a uniform tension force of 300 N, followed by holding for 30 minutes. Example 3. Example 1 is repeated, with the difference that extrusion is carried out at 350 G, axial stretching of the obtained tow is 1:10 at 100 C, winding cooled monofilament to room temperature with a uniform tension force of 150 N subsequent exposure for 5 minutes Example 4. Example 1 is repeated with the difference that the extrusion is carried out at 260 ° C and the axial stretching of the resulting tow is 1: 5 at 60 ° C. Determination of the mechanical properties of the strings of examples 1-4 and the well-known strings of polyamide. The elasticity of a string with a diameter of 1.3 mm is determined according to the German standard Nr 53.455. When e, that receive the results summarized in table 1. A measure of the ability to return to its original position is the dependence of the modulus of elasticity in shear and damping on temperature, which is determined according to the German NP NP 53.445 standard. At the same time receive the results summarized in table 2. The data of tables 1 and 2, indicate a better elasticity and a better ability to return to the initial position of the string obtained by the proposed method, compared with the string obtained by a known method.
    /Table 2
    权利要求:
    Claims (2)
    [1]
    METHOD FOR PRODUCING A POLYMER STRING, including: extrusion of a polymer melt in the form of a tow with j followed by cooling it to a temperature! environment, because of the fact that, in order to improve the mechanical properties of the string, a mixture of 79 wt.% polyvinylidene fluoride is used as polymer,
    [2]
    3.5 wt.% Polymethyl methacrylate and
    17.5 wt.% Grafted copolymer of vinylidene fluoride and ethyl acrylate, taken in a ratio of 80:20, the tow is first cooled to 60150 ° C, additionally axially stretched at a temperature in the ratio 1: 3-10, and then cooled to a temperature; environment with subsequent winding on the rod with a pulling force of 150-300 N and exposure for 5-60 minutes
    SU 4,1082312
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1082312A3|1984-03-23|Method for making polymeric string
    US4382358A|1983-05-10|String of a vinylidene fluoride synthetic resin composition
    US4339499A|1982-07-13|String of a synthetic resin
    KR950032748A|1995-12-22|Polytetrafluoroethylene high strength fiber and method for producing same
    KR20110114602A|2011-10-19|Polylactic acid products and their use
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    KR910008186A|1991-05-30|Low shrinkage, high toughness poly | yarn and preparation method thereof
    PL145916B1|1988-11-30|Method of obtaining surgical suture material
    US5601762A|1997-02-11|Method for enhancing the properties of a string used in a stringing device
    BE1018246A3|2010-07-06|SYNTHETIC STRAP.
    US4395458A|1983-07-26|Graphite impregnated polyamide tennis strings
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    US3451140A|1969-06-24|Production of acrylic synthetic fibers
    JPH07150434A|1995-06-13|String made of resin
    JP2776013B2|1998-07-16|Method for producing high knot strength polyvinylidene fluoride monofilament
    JP2006255069A|2006-09-28|Gut for racket
    GB706263A|1954-03-24|Improvements in and relating to the production of artificial filaments
    JP5091104B2|2012-12-05|Monofilament, method for producing the same, and fishing line
    JPH0974961A|1997-03-25|Biodegradable fishline and its production
    JPH073525A|1995-01-06|High-strength polyethylene porous fiber and production of thereof
    JPH10276639A|1998-10-20|Polyamide-based fishing line excellent in light resistance
    同族专利:
    公开号 | 公开日
    AT3948T|1983-07-15|
    EP0049368A1|1982-04-14|
    EP0049368B1|1983-06-29|
    DE3160535D1|1983-08-04|
    JPS5789611A|1982-06-04|
    DE3037457A1|1982-04-15|
    DE3037457C2|1982-08-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2805066C2|1977-02-10|1987-04-30|Fischer Ges.M.B.H., Ried, At|JPS60209008A|1984-03-30|1985-10-21|Toray Ind Inc|Production of polyvinylidene fluoride monofilament having high knot strength|
    JPS60209009A|1984-03-30|1985-10-21|Toray Ind Inc|Production of polyvinylidene fluoride monofilament having high knot strength|
    JPH0461086B2|1984-04-11|1992-09-29|Unitika Ltd|
    JPH0461087B2|1984-06-18|1992-09-29|Unitika Ltd|
    DE3709636A1|1986-03-24|1987-11-12|Kureha Chemical Ind Co Ltd|String for a musical instrument|
    GB2303730B|1995-07-18|2000-01-26|Zyex Limited|Musical instrument strings|
    DE19625697A1|1996-04-22|1998-01-08|Helmut Luethy|Coating agent for strings with string covering|
    US6835454B1|1999-08-24|2004-12-28|Stuart Karl Randa|Fluoropolymer modification of strings for stringed sports equipment and musical instruments|
    DE102007030159B4|2007-06-27|2015-08-06|Perlon Nextrusion Monofil GmbH|Mechanically structured PET monofilaments, in particular consisting of strings for ball game rackets|
    DE102007062238A1|2007-12-21|2009-06-25|Teijin Monofilament Germany Gmbh|Tennis racket monofilament fibre string has cross-sectional regular array of radial ribs|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3037457A|DE3037457C2|1980-10-03|1980-10-03|Plastic string|
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