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    Process for producing graft modified polyolefins
    1.
    发明授权
    Process for producing graft modified polyolefins 失效
    生产接枝改性聚烯烃的方法

    公开(公告)号：US5728776A

    公开(公告)日：1998-03-17

    申请号：US586693

    申请日：1996-01-25

    申请人： Kazuya Takemura ,  Kazumichi Sashi ,  Taichi Ogawa ,  Tadahiro Wakui ,  Shigeru Takano

    发明人： Kazuya Takemura ,  Kazumichi Sashi ,  Taichi Ogawa ,  Tadahiro Wakui ,  Shigeru Takano

    IPC分类号： C08F255/00 ,  C08F8/46

    CPC分类号： C08F255/00

    摘要： When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolefin containing either one of said radical-polymerizable monomer and the radical-polymerization initiator to the other. When said radical-polymerizable monomer is an unsaturated carboxylic anhydride, said unsaturated carboxylic anhydride as a starting material is preliminarily heated at 50.degree. to 250.degree. C., and then fed to the grafting reaction mentioned above. When the monomer is an unsaturated carboxylic acid or an acid anhydride of such an unsaturated carboxylic acid, an organic peroxide of a formula (I) is used as the radical-polymerization initiator. ##STR1## In this formula (I), two substituting groups connected directly to the benzene ring have an ortho-positional relationship or a meta-positional relationship, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which are the same as or different from one another, each denote a hydrogen atom or an alkyl group having the number of carbons of 1 to 10.

    摘要翻译： PCT No.PCT / JP94 / 01250 Sec。 371日期：1996年1月25日 102（e）日期1996年1月25日PCT提交1994年7月29日PCT公布。 第WO95 / 04091号公报 日期1995年2月9日当通过熔融和捏合聚烯烃，可自由基聚合单体和自由基聚合引发剂制备接枝改性聚烯烃时，提高了生产效率。 接枝反应通过将含有所述可自由基聚合的单体和自由基聚合引发剂中的任一种的熔融聚烯烃进料到另一种来进行。 当所述可自由基聚合的单体是不饱和羧酸酐时，将所述不饱和羧酸酐作为原料，在50-250℃下预先加热，然后加入上述接枝反应。 当单体是这种不饱和羧酸的不饱和羧酸或酸酐时，使用式（I）的有机过氧化物作为自由基聚合引发剂。 Formula（I）在该式（I）中，直接与苯环连接的两个取代基具有邻位置关系或间位关系，R1，R2，R3，R4，R5和R6， 彼此相同或不同，分别表示氢原子或碳原子数为1〜10的烷基。

    Modified polyarylate resin and composition comprising the same
    6.
    发明授权
    Modified polyarylate resin and composition comprising the same 失效
    改性聚芳酯树脂及其组合物

    公开(公告)号：US5013818A

    公开(公告)日：1991-05-07

    申请号：US449595

    申请日：1989-12-12

    申请人： Kazuya Takemura ,  Kenji Yoshino ,  Tadahiro Wakui

    发明人： Kazuya Takemura ,  Kenji Yoshino ,  Tadahiro Wakui

    IPC分类号： C08G63/60 ,  C08L67/00 ,  C08L77/00

    CPC分类号： C08L67/00 ,  C08G63/605 ,  C08L77/00

    摘要： An improved polyarylate resin is provided, which resin comprises the following units (I) to (IV) ##STR1## the units (I) being contained in an amount of from 3 to 30 mole %, the units (II) being contained in amount of not less than 30 mole %, the units (III) being contained in an amount of not less than 30 mole %, and the units (IV) being contained in an amount of not larger than 25 mole %, each based on the total moles of the units (I) to (IV). The polyarylate resin has good mechanical strength, heat resistance, resistance to color change, transparency, moldability and flame retardancy. A resin composition comprising the polyarylate resin, a polyamide and an epoxy resin is also provided.

    Resin composition
    7.
    发明授权
    Resin composition 失效
    树脂组成

    公开(公告)号：US5242981A

    公开(公告)日：1993-09-07

    申请号：US752999

    申请日：1991-09-03

    申请人： Mitsuhiko Izumi ,  Kenji Yoshino ,  Tadahiro Wakui

    发明人： Mitsuhiko Izumi ,  Kenji Yoshino ,  Tadahiro Wakui

    IPC分类号： C08L67/00 ,  C08L69/00

    CPC分类号： C08L67/00 ,  C08L69/00

    摘要： The improved resin composition comprises:(A) a melt-workable liquid-crystal polyester resin obtained by polymerizing components selected from the group consisting of a dicarboxylic acid represented by the general formula (a) HOOC--R.sub.1 --COOH, a diol represented by the general formula (b) HO--R.sup.2 --OH, and an oxycarboxylic acid represented by the general formula (c) HO--R.sup.3 --COOH;(B) a polycarbonate resin having a recurring unit represented by the general formula: ##STR1## (C) a polyolefin and/or an olefinic copolymer, and the polyolefin and/or olefinic copolymer (C) is contained in an amount of 1-15 parts by weight per 100 parts by weight of a resin consisting of 95-5 wt % of the liquid-crystal polyester resin (A) and 5-95 wt % of the polycarbonate resin(B). This resin composition is balanced between various physical properties including moldability, heat resistance, impact resistance, dimensional stability and stiffness.

    摘要翻译： 改进的树脂组合物包括：（A）通过聚合选自由通式（a）表示的二羧酸HOOC-R1-COOH组分的组分得到的可熔融加工的液晶聚酯树脂，由 通式（b）HO-R 2 -OH和由通式（c）HO-R 3 -COOH表示的羟基羧酸; （B）具有由下列通式表示的重复单元的聚碳酸酯树脂：（C）聚烯烃和/或烯烃共聚物，聚烯烃和/或烯烃共聚物（C）的含量为1- 15重量份/ 100重量份由95-5重量％液晶聚酯树脂（A）和5-95重量％聚碳酸酯树脂（B）组成的树脂。 该树脂组合物在各种物理性能（包括成型性，耐热性，耐冲击性，尺寸稳定性和刚度）之间是平衡的。

    Process for preparing para-hydroxybenzoic acid
    8.
    发明授权
    Process for preparing para-hydroxybenzoic acid 失效
    制备对羟基苯甲酸的方法

    公开(公告)号：US5072036A

    公开(公告)日：1991-12-10

    申请号：US368320

    申请日：1989-06-14

    申请人： Toshinobu Suzuki ,  Makiko Ijiri ,  Tokio Iizuka ,  Hitoshi Saima ,  Tadahiro Wakui

    发明人： Toshinobu Suzuki ,  Makiko Ijiri ,  Tokio Iizuka ,  Hitoshi Saima ,  Tadahiro Wakui

    IPC分类号： C07C51/15

    CPC分类号： C07C51/15

    摘要： Para-hydroxybenzoic acid is prepared by reacting an alkali metal salt of phenol except the lithium and sodium salts with carbon dioxide in the presence of at least one compound selected from compounds of the following formulae (I) and (II): ##STR1## In formulae (I) and (II), M is an alkali metal except lithium and sodium; R is any substituent except an aliphatic hydroxy group having up to 4 carbon atoms, an aliphatic mercapto group having up to 4 carbon atoms, a substituent having at least one of them as its structural unit, and a hydrogen atom; R' is any substituent except an aliphatic hydroxy group having up to 4 carbon atoms, an aliphatic mercapto group having up to 4 carbon atoms, and a substituent having at least one of them as its structural unit; in formula (I) n is an integer of 1 to 5, and R groups may be the same or different when n is more than one; in formula (II) m is an integer of 1 to 5 and l is an integer of 0 to 4, and M alkali metals may be the same or different when m is one or more, and R' groups may be the same or different when l is more than one. The reaction may be carried out in the presence or absence of reaction medium.

    Stampable glass fiber reinforced thermoplastic resin and method of producing the same
    10.
    发明授权
    Stampable glass fiber reinforced thermoplastic resin and method of producing the same 失效
    可冲压玻璃纤维增​​强热塑性树脂及其制造方法

    公开(公告)号：US5529808A

    公开(公告)日：1996-06-25

    申请号：US290354

    申请日：1994-08-15

    申请人： Kunihiko Eguchi ,  Masafumi Komatsu ,  Seiji Hanatani ,  Yuichi Uchida ,  Tomoshige Ono ,  Tadahiro Wakui

    发明人： Kunihiko Eguchi ,  Masafumi Komatsu ,  Seiji Hanatani ,  Yuichi Uchida ,  Tomoshige Ono ,  Tadahiro Wakui

    IPC分类号： B29B15/12 ,  C08J3/205 ,  C08J5/08 ,  D21F11/00 ,  B05D3/00 ,  B05D1/36

    CPC分类号： D21F11/00 ,  B29B15/105 ,  C08J3/205 ,  C08J5/08

    摘要： A glass fiber reinforced polymer which excels in mechanical properties and is suitable for use in a large-sized structural members, formed from a dispersion liquid by dispersing reinforcement glass fibers and particulate thermoplastic resin in a surfactant-containing aqueous medium in which bubbles of air are dispersed, forming a sheet-like web on a porous support plate, and applying heat and pressure to form a sheet. The reinforcement glass fibers include a silane coupling agent while the matrix resin has functional groups bonded to the silane coupling agent. The concentration of said functional groups is higher in the regions adjacent the surfaces of said reinforcement glass fibers than in regions farther removed therefrom, and said concentration progressively decreases in the direction away from said reinforcement glass fibers.

    摘要翻译： 一种玻璃纤维增​​强聚合物，其机械性能优异并且适用于通过将增强玻璃纤维和颗粒状热塑性树脂分散在含有空气泡的表面活性剂水性介质中的分散液形成的大型结构构件中 分散，在多孔支撑板上形成片状网，并施加热和压力以形成片材。 增强玻璃纤维包括硅烷偶联剂，而基质树脂具有与硅烷偶联剂键合的官能团。 所述官能团的浓度在与所述增强玻璃纤维的表面相邻的区域中比在远离所述强化玻璃纤维的区域的区域高，并且所述浓度在远离所述增强玻璃纤维的方向上逐渐减小。