Acrylic molding compositions
    1.
    发明授权
    Acrylic molding compositions 失效
    丙烯酸成型组合物

    公开(公告)号:US5216082A

    公开(公告)日:1993-06-01

    申请号:US815594

    申请日:1991-12-27

    IPC分类号: C08F265/06

    CPC分类号: C08F265/06

    摘要: A clear impact resistant molding compound which does not become cloudy under either the influence of heat or moisture or on weathering and is composed according to the invention of:A) 10 to 90 percent by weight of a continuous rigid phase, essentially of methyl methacrylate, having a glass transition temperature greater than 70.degree. C. andB) 90 to 10 percent by weight of an elastomeric phase, distributed in the rigid phase and partly bound thereto, having a glass transition temperature below -10.degree. C., an average particle size of the elastomeric phase below 130 nm, and an inhomogeneity, U, of the elastomeric phase particle size of less than 0.5, comprising at least 50 percent by weight of B) of a lower alkyl acrylate and 0.5-5 percent by weight of a graft cross linking agent or an at least trifunctional cross linking agent,C) not more than 0.05 percent by weight of water soluble components,where U=D.sub.w.sup.3 /D.sub.n.sup.3- 1 D.sub.w and D.sub.n are, respectively the weight average- and number average-values of the particle size,films prepared from such a molding compound;multilayer shaped bodies wherein at least one layer is of such a molding compound;methods for making such molding compounds, films, and shaped bodies.

    摘要翻译: 一种在热或湿气或风化影响下不变浑浊的透明抗冲击成型化合物,并且根据本发明组成:A)10至90重量%的连续刚性相,基本上为甲基丙烯酸甲酯, 具有大于70℃的玻璃化转变温度和B)90至10重量%的弹性体相分布在刚性相中且部分结合到其上,玻璃化转变温度低于-10℃,平均颗粒 弹性体相的尺寸低于130nm,弹性体相粒度的不均匀性U小于0.5,包含至少50重量%的B)丙烯酸低级烷基酯和0.5-5重量%的 接枝交联剂或至少三官能交联剂,C)不超过0.05重量%的水溶性组分,其中U = Dw3 / Dn3-1 Dw和Dn分别为重均分子量和数均分子量 o f粒径,由这种模塑料制备的薄膜; 多层成形体,其中至少一层是这种模塑料; 制造这种模塑料,薄膜和成形体的方法。

    Color-stable, weather-, and impact-resistant molding compositions based
on polymethylmethacrylate, and process for production thereof
    3.
    发明授权
    Color-stable, weather-, and impact-resistant molding compositions based on polymethylmethacrylate, and process for production thereof 失效
    基于聚甲基丙烯酸甲酯的耐色,耐候,耐冲击的成型组合物及其生产方法

    公开(公告)号:US5726245A

    公开(公告)日:1998-03-10

    申请号:US753682

    申请日:1996-11-27

    CPC分类号: C08K3/32 Y10S525/932

    摘要: Highly transparent, impact-resistant molding compositions based on polymethyl methacrylate (PMMA), having excellent color stability both during processing at high temperatures, as well as when under thermal stress, as a result of multiple processing with simultaneously high weathering stability and stability of the optical characteristics with the effect of water. Preparation is carried out according to a multi-step extruder process, wherein an extruder for the melt coagulation and one for the compounding are connected in series. Addition of small quantities of reducing inorganic phosphorous compounds at a later stage provides prolonged effectiveness.

    摘要翻译: 基于聚甲基丙烯酸甲酯(PMMA)的高度透明,耐冲击的成型组合物,在高温加工期间具有优异的颜色稳定性,以及在热应力下,作为多次加工的结果,具有同时高的耐候稳定性和稳定性 光学特性与水的作用。 根据多步骤挤出机方法进行制备,其中用于熔融凝结的挤出机和用于混合的挤出机串联连接。 在稍后阶段添加少量还原性无机磷化合物可提供长时间的有效性。

    Material for modifying impact resistance
    4.
    发明授权
    Material for modifying impact resistance 失效
    改善耐冲击性的材料

    公开(公告)号:US5270397A

    公开(公告)日:1993-12-14

    申请号:US904183

    申请日:1992-06-25

    摘要: An emulsion polymer having at least three phases, adaptable as an agent for modifying the impact resistance of rigid thermoplastic synthetic resins such as polymethyl methacrylate, and consisting ofA) a rigid core phase of a crosslinked homo- or copolymer,B) an elastomer phase, prepared in the presence of the core material and having a glass transition temperature not above -10.degree. C., comprising a crosslinked resin which includes an arylalkyl acrylate or arylalkyl methacrylate, andC) a rigid shell phase, prepared in the presence of the elastomer phase, having a glass transition temperature of at least 50.degree. C.

    摘要翻译: 具有至少三相的乳液聚合物,适用于改性刚性热塑性合成树脂如聚甲基丙烯酸甲酯的耐冲击性的试剂,由A)交联的均聚物或共聚物的刚性核相组成,B)弹性体相 在芯材存在下制备玻璃化转变温度不高于-10℃,包括交联树脂,其包括丙烯酸芳基烷基酯或甲基丙烯酸芳基烷基酯,和C)刚性壳相,其在 弹性体相,玻璃化转变温度至少为50℃

    Impact resistance modifier for polycarbonate
    5.
    发明授权
    Impact resistance modifier for polycarbonate 失效
    聚碳酸酯耐冲击改性剂

    公开(公告)号:US4997883A

    公开(公告)日:1991-03-05

    申请号:US305780

    申请日:1989-02-03

    摘要: An impact resistance modifier for polycarbonate, which is a copolymer, comprising an elastomer and a methyl methacrylate copolymer, which are bonded covalently. The methyl methacrylate copolymer is one that is compatible by itself with polycarbonate resin due to specific comonomers. Such comonomers are aromatic (meth)acrylic esters and (meth)acrylamides, cycloalkyl(meth)acrylamides and cycloalkylmaleimides. Thermoplastic molding compounds comprising polycarbonate and the new impact resistance modifier exhibit excellent impact resistance.

    摘要翻译: 作为共聚物的聚碳酸酯的抗冲击性改性剂,其包含共价键合的弹性体和甲基丙烯酸甲酯共​​聚物。 甲基丙烯酸甲酯共​​聚物是由于特定的共聚单体与聚碳酸酯树脂本身相容的共聚物。 这些共聚单体是芳族(甲基)丙烯酸酯和(甲基)丙烯酰胺,环烷基(甲基)丙烯酰胺和环烷基马来酰亚胺。 包含聚碳酸酯和新的抗冲击性改性剂的热塑性模塑料表现出优异的耐冲击性。

    Impact-resistant methacrylate protective layer for polycarbonate,
containing UV absorber
    6.
    发明授权
    Impact-resistant methacrylate protective layer for polycarbonate, containing UV absorber 失效
    含抗紫外线吸收剂的聚碳酸酯防甲基丙烯酸酯保护层

    公开(公告)号:US5063112A

    公开(公告)日:1991-11-05

    申请号:US432388

    申请日:1989-11-06

    摘要: Multi-layer plastic elements containing a polycarbonate core, with a polymethacrylate layer containing a UV absorber, and modified to be impact-resistant, applied to the core, where the polymethacrylate plastic layer is composed of methacrylate copolymers, which form compatible mixtures with polycarbonate, especially the polycarbonate of bisphenol A, exhibit good adhesion between the polycarbonate and the polymethacrylate. The methacrylate copolymers are methyl methacrylate copolymers with (meth)acrylic monomers which contain carbocyclic substituents in the ester group. The protective layer containing UV absorber is applied to the polycarbonate plastic in thickness from 1 to 500 .mu.m by coextrusion or by lacquering.

    摘要翻译: 包含聚碳酸酯芯的多层塑料元件,其中含有紫外线吸收剂的聚甲基丙烯酸酯层,并被改性为抗冲击的,应用于芯,其中聚甲基丙烯酸酯塑料层由与聚碳酸酯形成相容的混合物的甲基丙烯酸酯共聚物组成, 特别是双酚A的聚碳酸酯,在聚碳酸酯和聚甲基丙烯酸酯之间表现出良好的粘合性。 甲基丙烯酸酯共聚物是甲基丙烯酸甲酯共​​聚物与在酯基中含有碳环取代基的(甲基)丙烯酸单体。 通过共挤出或通过涂漆将含有UV吸收剂的保护层施加至厚度为1至500μm的聚碳酸酯塑料。

    Thermoplastic molding materials having high transparency prepared from
compatible polymer alloys
    7.
    发明授权
    Thermoplastic molding materials having high transparency prepared from compatible polymer alloys 失效
    由相容的聚合物合金制备的具有高透明度的热塑性成型材料

    公开(公告)号:US5612417A

    公开(公告)日:1997-03-18

    申请号:US568487

    申请日:1995-12-07

    摘要: A thermoplastic polymethacrylate molding material with a high degree of thermal dimensional stability, a high degree of transparency, a high degree of flowability and a high degree of resistance against water, monomeric methylmethacrylate, mixtures consisting of ethanol and water, as well as fuel, wherein the molding material is a compatible mixture of1 to 99 wt % of a copolymer P, made from (p1) 30 to 70 wt % styrene and/or .alpha.-methylstyrene, (p2) 29 to 70 wt % (C.sub.1 -C.sub.6 -alkyl)methacrylate, and (p3) 1 to 20 wt % acrylic acid and/or methacrylic acid, the sum of (p1), (p2), and (p3) adding up to 100 wt %, and99 to 1 wt.-parts of a polymethylmethacrylate polymer PM, made of (pm1) 80 to 100 wt % methylmethacrylate, as well as (pm2) 0 to 20 wt % monomers which can be copolymerized with methylmethacrylate.

    摘要翻译: 一种热塑性聚甲基丙烯酸酯成型材料,具有高度的热尺寸稳定性,高透明度,高流动性和高耐水性,单体甲基丙烯酸甲酯,由乙醇和水组成的混合物以及燃料,其中 成型材料是由(p1)30〜70重量%苯乙烯和/或α-甲基苯乙烯制成的1〜99重量%共聚物P,(p2)29〜70重量%(C1-C6烷基 )和(p3)1〜20重量%的丙烯酸和/或甲基丙烯酸,(p1),(p2)和(p3)之和为100重量%,99〜1重量份 的聚甲基丙烯酸甲酯聚合物PM,由(pm1)80-100重量%甲基丙烯酸甲酯制成,以及(pm2)0-20重量%的可与甲基丙烯酸甲酯共​​聚的单体。

    Polymer composites
    9.
    发明授权
    Polymer composites 失效
    聚合物复合材料

    公开(公告)号:US5209986A

    公开(公告)日:1993-05-11

    申请号:US869164

    申请日:1992-04-16

    IPC分类号: C08L25/12 C08L33/10

    摘要: Polymer blends comprising:(A) 99.5-0.5 wt. % of a copolymer comprising:a1) 50-99 wt. % of C.sub.1 -C.sub.10 -alkyl- or C.sub.5 -C.sub.8 -cycloalkylethacrylates or mixtures thereof,a2) 0.5-20 wt. % of maleic acid anhydride or fumaric acid anhydride or maleimide, anda3) 0.5-40 wt. % of vinyl aromatics which may be unsubstituted or substituted on the aromatic ring with 1 or 2 alkyl groups of 1 to 4 carbon atoms; and(B) 0.5-99.5 wt. % of a copolymer comprising:b) 99.5-50 wt. % of styrene and/or .alpha.-methyl styreneb2) 0.5-50 wt. % of acrylonitrile and/or methacrylonitrile;provide thermoplastic transparent molding compositions.

    摘要翻译: 聚合物共混物包含:(A)99.5-0.5wt。 %的共聚物包含:a1)50-99wt。 %C 1 -C 10 - 烷基 - 或C 5 -C 8 - 环烷基乙基丙烯酸酯或其混合物,a2)0.5-20重量% %的马来酸酐或富马酸酐或马来酰亚胺,和a3)0.5-40wt。 %的乙烯基芳族化合物,其可以是未取代的或在具有1至4个碳原子的1或2个烷基的芳环上被取代的; 和(B)0.5-99.5wt。 %的共聚物包含:b)99.5-50wt。 %的苯乙烯和/或α-甲基苯乙烯b2)0.5-50wt。 %的丙烯腈和/或甲基丙烯腈; 提供热塑性透明模塑组合物。

    Polymer blends
    10.
    发明授权
    Polymer blends 失效
    聚合物混合物

    公开(公告)号:US5189100A

    公开(公告)日:1993-02-23

    申请号:US693535

    申请日:1991-04-30

    CPC分类号: C08L25/12 C08L33/10

    摘要: Polymer blends comprising:(A) 99.5-0.5 wt. % of a copolymer comprising:a1) 50-99 wt. % of C.sub.1 -C.sub.10 -alkyl- or C.sub.5 -C.sub.8 -cycloalkylmethacrylates or mixtures thereof,a2) 0.5-20 wt. % of maleic acid anhydride or fumaric acid anhydride or maleimide, anda3) 0.5-40 wt. % of vinyl aromatics which may be unsubstituted or substituted on the aromatic ring with 1 or 2 alkyl groups of 1 to 4 carbon atoms; and(B) 0.5-99.5 wt. % of a copolymer comprising:b1) 99.5-50 wt. % of styrene and/or .alpha.-methyl styreneb2) 0.5-50 wt. % of acrylonitrile and/or methacrylonitrile;provide thermoplastic transparent molding compositions.

    摘要翻译: 聚合物共混物包含:(A)99.5-0.5wt。 %的共聚物包含:a1)50-99wt。 %的C 1 -C 10 - 烷基 - 或C 5 -C 8 - 环烷基甲基丙烯酸酯或其混合物,a2)0.5-20重量% %的马来酸酐或富马酸酐或马来酰亚胺,和a3)0.5-40wt。 %的乙烯基芳族化合物,其可以是未取代的或在具有1至4个碳原子的1或2个烷基的芳环上被取代的; 和(B)0.5-99.5wt。 %的共聚物包含:b1)99.5-50wt。 %的苯乙烯和/或α-甲基苯乙烯b2)0.5-50wt。 %的丙烯腈和/或甲基丙烯腈; 提供热塑性透明模塑组合物。