Composition of styrene-acrylonitrile copolymer matrix with particles of
graft copolymer and crosslinked copolymer
    22.
    发明授权
    Composition of styrene-acrylonitrile copolymer matrix with particles of graft copolymer and crosslinked copolymer 失效
    苯乙烯 - 丙烯腈共聚物基体与接枝共聚物和交联共聚物颗粒的组成

    公开(公告)号:US5631323A

    公开(公告)日:1997-05-20

    申请号:US567056

    申请日:1995-12-04

    摘要: Thermoplastic molding materials preparedA) from 35 to 99.5% by weight of a matrix copolymer (A) ofa.sub.1) from 50 to 95% by weight of styrene and/or .alpha.-methylstyrene,a.sub.2) from 5 to 50% by weight of acrylonitrile anda.sub.3) from 0 to 20% by weight of further comonomersB) from 0 to 50% by weight of a particulate graft copolymer (B) which is insoluble in (A), has a median particle diameter of from 0.03 to 1 .mu.m and preparedb.sub.1) from 30 to 80% by weight of a core comprising an elastomeric polymer having a glass transition temperature of less than -10.degree. C. andb.sub.2) from 20 to 70% by weight of a graft shell comprising a polymer which is compatible or partly compatible with (A)andC) from 0.5 to 30% by weight of a particulate crosslinked copolymer (C) which is insoluble in (A), has a median particle diameter of from 0.5 to 50 .mu.m and comprisesc.sub.1) from 50 to 89.95% by weight of styrene and/or .alpha.-methylstyrene,c.sub.2) from 10 to 50% by weight of acrylonitrile,c.sub.3) from 0.05 to 5% by weight of a polyfunctional, crosslinking monomer,c.sub.4) from 0 to 10% by weight of a monomer which contains acidic or basic groups andc.sub.5) from 0 to 20% by weight of further comonomers.

    摘要翻译: 制备的热塑性成型材料A)35至99.5重量%的a1)的基质共聚物(A),50-95重量%的苯乙烯和/或α-甲基苯乙烯,a2)5-50重量%的丙烯腈 和a3)0至20重量%的另外的共聚单体B)0至50重量%的不溶于(A)的颗粒接枝共聚物(B),其中值粒径为0.03至1μm 并且制备b1)30至80重量%的芯,其包含玻璃化转变温度低于-10℃的弹性体聚合物,和b2)20至70重量%的包含聚合物的接枝壳,所述聚合物是 与(A)和C)相容或部分相容的0.5至30重量%的不溶于(A)的颗粒状交联共聚物(C),其中值粒径为0.5至50μm,并包含c1) 苯乙烯和/或α-甲基苯乙烯的50至89.95重量%,c2)10至50重量%的丙烯腈,c 3)0.05至5重量% t的多官能交联单体,c4)0至10重量%的含酸性或碱性基团的单体,和c 5)0至20重量%的其它共聚单体。

    METHOD FOR PRODUCING FLAME-PROOFED THERMOPLASTIC MOLDING COMPOUNDS
    23.
    发明申请
    METHOD FOR PRODUCING FLAME-PROOFED THERMOPLASTIC MOLDING COMPOUNDS 有权
    生产防火型热塑性塑料化合物的方法

    公开(公告)号:US20130274378A1

    公开(公告)日:2013-10-17

    申请号:US13879246

    申请日:2011-10-13

    IPC分类号: C08J3/20

    摘要: The invention relates to a method for producing thermoplastic molding compounds, comprising: A) 40 to 99 wt % of at least one thermoplastic polymer, B) 1 to 60 wt % of a flame-proofing agent component containing an expandable graphite, and C) 0 to 60 wt % of further additives, by melt-mixing components A), B) and C) in a screw-type extruder, wherein the screw-type extruder, along the feed direction, comprises, in the following order, at least one dosing zone, a plastifying zone, a homogenizing zone, a second dosing zone, and a discharge zone, in that the dosing takes place into the screw-type extruder having the length L, wherein the length L is defined as the section starting with the first dosing unit for adding components A, B and/or C and ending, in the feed direction, at the discharge opening, a melt is generated after adding components A, B and C in the range of 0 liter to 0.15 liter in a first method step in the presence of component B1), and in a second method step, after the addition of component B1) in the range of 0.5 liter to 0.95 liter, component B1) is mixed into said melt, wherein said method offers technical advantages.

    摘要翻译: 本发明涉及一种生产热塑性模塑料的方法,包括:A)40至99重量%的至少一种热塑性聚合物,B)1至60重量%的含可膨胀石墨的阻燃剂组分,和C) 0至60重量%的其它添加剂,通过在螺杆式挤出机中熔融混合组分A),B)和C),其中沿着进料方向的螺杆型挤出机至少包含以下顺序 一个给料区,一个塑化区,一个均质区,一个第二配量区和一个排放区,其中配料发生到长度为L的螺杆式挤出机中,其中长度L被定义为以 用于添加组分A,B和/或C并且在进料方向上在排出口处结束的第一计量单元,在将组分A,B和C在0升至0.15升的范围内添加后,在 在组分B1)的存在下的第一方法步骤,并且在第二方法步骤中,在a之后 组分B1)在0.5升至0.95升的范围内的组分B1)混合到所述熔体中,其中所述方法具有技术优点。

    Transparent molding materials resistant to stress cracking and having
improved toughness/rigidity ratio
    25.
    发明授权
    Transparent molding materials resistant to stress cracking and having improved toughness/rigidity ratio 失效
    耐应力开裂的透明成型材料,具有改善的韧性/刚性比

    公开(公告)号:US5969042A

    公开(公告)日:1999-10-19

    申请号:US983233

    申请日:1998-01-13

    摘要: Thermoplastic molding materials contain a mixture of(A) a methacrylate polymer,(B) a copolymer of vinylaromatic monomers and vinyl cyanide,(C) a graft copolymer comprising a core and a graft shell and(D) a further graft copolymer comprising a core and a graft shell,the average particle size (d.sub.50)-C of the graft copolymer (C) being from 25 to 60 nm and that of the graft copolymer (D) being from 90 to 300 nm and the ratio of the average particle size (d.sub.50)-C to (d.sub.50)-D being kept in the range from 2:1 to 5:1.

    摘要翻译: PCT No.PCT / EP96 / 03072 Sec。 371日期1998年1月13日 102(e)1998年1月13日PCT PCT 1996年7月12日PCT公布。 出版物WO97 / 05198 日期1997年2月13日热塑性成型材料含有(A)甲基丙烯酸酯聚合物,(B)乙烯基芳族单体和乙烯基氰化物的共聚物的混合物,(C)包含芯和接枝壳的接枝共聚物,(D) 包含芯和接枝壳的接枝共聚物,接枝共聚物(C)的平均粒径(d50)-C为25〜60nm,接枝共聚物(D)的平均粒径(d50)-C为90〜300nm, 的平均粒度(d50)-C至(d50)-D保持在2:1至5:1的范围内。

    Preparation of thermoplastics
    27.
    发明授权
    Preparation of thermoplastics 失效
    热塑性塑料的制备

    公开(公告)号:US5852113A

    公开(公告)日:1998-12-22

    申请号:US620309

    申请日:1996-03-22

    摘要: Toughened thermoplastics are prepared by mixing a water-moist elastomer component A containing up to 60% by weight of residual water with a thermoplastic polymer B and further polymers C and additives D in an extruder with mechanical dewatering of the elastomer component A, by a process in which the components A, B, C and D are fed to a twin-screw extruder which has corotating screws and essentially comprises, in the transport direction, at least one metering section in which the elastomer component A is fed to the extruder by a metering means, at least one squeeze section which serves for dewatering the component A and contains at least one retarding element and in each case at least one associated dewatering orifice, at least one section in which the thermoplastic polymer B is introduced as a melt into the extruder, at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements, at least one devolatilization section which is provided with at least one devolatilization orifice and in which the residual water is removed as steam, and a discharge zone, the water emerging from the dewatering orifices being present partially or completely in the liquid phase, and the components C or D or mixtures thereof, together or separately from one another, being fed to one or more of the stated extruder sections, either together with the component A or B or mixtures thereof or separately from A and B.

    摘要翻译: 增韧的热塑性塑料通过将包含高达60重量%的残余水的水分润湿性组分A与热塑性聚合物B混合,并且在挤出机中将另外的聚合物C和添加剂D混合在一起,通过一种方法将该弹性体组分A机械脱水 其中将组分A,B,C和D进料到具有同向旋转螺杆的双螺杆挤出机中,并且在输送方向上基本上包括至少一个计量段,其中弹性体组分A通过 计量装置,至少一个挤压部分,其用于对部件A进行脱水并且包含至少一个延迟元件,并且在每种情况下包含至少一个相关联的脱水孔,至少一个部分,其中热塑性聚合物B作为熔体引入其中 挤出机,至少一个具有混合,捏合或其它塑化元件或这些元件的组合的部分,至少一个脱挥发段 与至少一个脱挥发孔一起使用,其中残留的水作为蒸汽除去,以及排出区,从脱水孔中排出的水部分或完全存在于液相中,以及组分C或D或其混合物, 一起或彼此分开地,被供给到一个或多个所述的挤出机部分,与组分A或B一起或其混合物或与A和B分开。

    Preparation of thermoplastics
    28.
    发明授权
    Preparation of thermoplastics 失效
    热塑性塑料的制备

    公开(公告)号:US5851463A

    公开(公告)日:1998-12-22

    申请号:US620259

    申请日:1996-03-22

    摘要: Toughened thermoplastics are prepared by mechanically dewatering a water-moist elastomer component A containing up to 50% by weight of residual water and mixing the resulting dewatered elastomer component A' with a thermoplastic polymer B in a mixing unit, by a process in which the elastomer component A is fed to a twin-screw extruder which has corotating, in each case triple-flight, screws and essentially includes, in the transport direction, one unheated metering section in which the elastomer component A is fed to the extruder by a metering means, at least one squeeze section which serves for dewatering and contains at least one retarding element and in each case at least one associated dewatering orifice, at least one section in which the thermoplastic polymer B is introduced as a melt into the extruder, at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements, at least one devolatilization section which is provided with at least one devolatilization orifice and in which the residual water is removed as steam, and unheated discharge zone, and in which the water emerging from the dewatering orifices is present partially or completely in the liquid phase.

    摘要翻译: 增韧的热塑性塑料通过机械脱水含有高达50重量%的残余水的水分弹性体组分A,并将所得脱水的弹性体组分A'与热塑性聚合物B混合在混合单元中,通过其中弹性体 组分A被输送到双螺杆挤出机,该双螺杆挤出机在每种情况下都具有共旋转的螺旋,并且在输送方向上基本上包括一个未加热的计量部分,其中弹性体组分A通过计量装置 至少一个挤压部分,其用于脱水并且包含至少一个延迟元件,并且在每种情况下包含至少一个相关联的脱水孔,至少一个部分,其中热塑性聚合物B作为熔体引入挤出机中,至少一个 其具有混合,捏合或其它塑化元件或这些元素的组合,至少一个脱挥发段,其设置有 至少一个脱挥发孔,其中残余水作为蒸汽和未加热排放区除去,其中从脱水孔出来的水部分地或完全地存在于液相中。