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    Heat-resistant resin composition
    1.
    发明授权
    Heat-resistant resin composition 失效
    耐热树脂组合物

    公开(公告)号：US5321097A

    公开(公告)日：1994-06-14

    申请号：US054194

    申请日：1993-04-30

    申请人： Takao Kawaki ,  Akikazu Amagai ,  Masahiko Ishikawa ,  Toshiaki Yamada ,  Yasuhiro Hirai ,  Hajime Ban

    发明人： Takao Kawaki ,  Akikazu Amagai ,  Masahiko Ishikawa ,  Toshiaki Yamada ,  Yasuhiro Hirai ,  Hajime Ban

    IPC分类号： C08G18/40 ,  C08G18/64 ,  C08L79/08 ,  C08L81/02 ,  C08L81/04

    CPC分类号： C08L79/08 ,  C08G18/4081 ,  C08G18/6438 ,  C08G18/6453 ,  C08L81/02

    摘要： A heat-resistant resin composition comprising a melt-kneaded product of:(A) at least one member selected from the group consisting of a polyamideimide resin precursor composed mainly of a recurring unit of the formula (1)-a, ##STR1## wherein R is a divalent aromatic group or aliphatic group, R.sup.1 is a hydrogen atom, an alkyl group or a phenyl group, and Ar is a trivalent aromatic group composed of at least one six-membered ring, and a polyamideimide resin composed mainly of a recurring unit of the formula (1)-b, ##STR2## wherein R, R.sup.1 and Ar are as defined in the above formula (1)-a, (B) a polyphenylene sulfide resin, and(C) an organic isocyanate compound having at least two isocyanate groups in the molecule, the amount of said organic isocyanate compound being 0.5 to 5 parts by weight based on 100 parts by weight of the total amount of the compounds (A) and (B).

    摘要翻译： 1.一种耐热性树脂组合物，其特征在于，含有以下物质的熔融混炼物：（A）选自主要由式（1）-a，（IMAGE）的重复单元组成的组的聚酰胺酰亚胺树脂前体中的至少一种 1）-a其中R是二价芳族基团或脂族基团，R1是氢原子，烷基或苯基，Ar是由至少一个六元环组成的三价芳族基团和聚酰胺酰亚胺树脂 主要由式（1）-b，其中R，R 1和Ar如上述式（1）-a定义的重复单元-b，（B）聚苯硫醚树脂， 和（C）分子中具有至少两个异氰酸酯基的有机异氰酸酯化合物，所述有机异氰酸酯化合物的量相对于化合物（A）和（A）的总量的100重量份为0.5〜5重量份， B）。

    Polyacetal resin composition, process for producing the same, and sliding member molded from the resin composition
    5.
    发明授权
    Polyacetal resin composition, process for producing the same, and sliding member molded from the resin composition 有权
    聚缩醛树脂组合物，其制造方法和由树脂组合物成型的滑动部件

    公开(公告)号：US08097670B2

    公开(公告)日：2012-01-17

    申请号：US12308178

    申请日：2007-06-12

    申请人： Masayuki Nagai ,  Yasuhiro Hirai

    发明人： Masayuki Nagai ,  Yasuhiro Hirai

    IPC分类号： C08L59/00 ,  C10M163/00

    CPC分类号： C08J3/20 ,  C08J2359/00 ,  C08L23/04 ,  C08L59/00 ,  C08L2666/06

    摘要： A polyacetal resin composition which has improved friction-wear characteristics as compared with conventional polyacetal resin compositions and which is less restricted in counter sliding members and can conform to a wide range of friction-wear conditions. A polyacetal resin composition comprising 100 parts by weight of (A) a polyacetal resin, 0.1 to 10 parts by weight of (B) a polyethylene wax having a number average molecular weight of 500 to 15,000, 0.1 to 10 parts by weight of (C) a polyethylene resin having a number average molecular weight of 2×104 to 50×104, and 0.1 to 5 parts by weight of (D) a silicone oil having a kinetic viscosity at 25° C. of 50×104 cSt or more.

    摘要翻译： 与常规聚缩醛树脂组合物相比具有改善的摩擦磨损特性的聚缩醛树脂组合物，并且在反向滑动构件中的限制较少并且可以符合宽范围的摩擦磨损条件。 一种聚缩醛树脂组合物，其包含100重量份的（A）聚缩醛树脂，0.1至10重量份的（B）数均分子量为500至15,000的聚乙烯蜡，0.1至10重量份的（C ）数均分子量为2×10 4〜50×10 4的聚乙烯树脂和0.1〜5重量份（D）在25℃下的动力粘度为50×10 4 cSt以上的硅油。

    Polyacetal Resin Composition, Process for Producing the Same, and Sliding Member Molded from the Resin Composition
    6.
    发明申请
    Polyacetal Resin Composition, Process for Producing the Same, and Sliding Member Molded from the Resin Composition 有权
    聚缩醛树脂组合物，其制造方法和由树脂组合物成型的滑动构件

    公开(公告)号：US20090298981A1

    公开(公告)日：2009-12-03

    申请号：US12308178

    申请日：2007-06-12

    申请人： Masayuki Nagai ,  Yasuhiro Hirai

    发明人： Masayuki Nagai ,  Yasuhiro Hirai

    IPC分类号： C08L59/00

    CPC分类号： C08J3/20 ,  C08J2359/00 ,  C08L23/04 ,  C08L59/00 ,  C08L2666/06

    摘要： A polyacetal resin composition which has improved friction-wear characteristics as compared with conventional polyacetal resin compositions and which is less restricted in counter sliding members and can conform to a wide range of friction-wear conditions. A polyacetal resin composition comprising 100 parts by weight of (A) a polyacetal resin, 0.1 to 10 parts by weight of (B) a polyethylene wax having a number average molecular weight of 500 to 15,000, 0.1 to 10 parts by weight of (C) a polyethylene resin having a number average molecular weight of 2×104 to 50×104, and 0.1 to 5 parts by weight of (D) a silicone oil having a kinetic viscosity at 25° C. of 50×104 cSt or more.

    摘要翻译： 与常规聚缩醛树脂组合物相比具有改善的摩擦磨损特性的聚缩醛树脂组合物，并且在反向滑动构件中的限制较少并且可以符合宽范围的摩擦磨损条件。 一种聚缩醛树脂组合物，其包含100重量份的（A）聚缩醛树脂，0.1至10重量份的（B）数均分子量为500至15,000的聚乙烯蜡，0.1至10重量份的（C ）数均分子量为2×10 4〜50×10 4的聚乙烯树脂和0.1〜5重量份（D）在25℃下的动力粘度为50×10 4 cSt以上的硅油。

    Polycarbonate resin composition and its molded articles
    7.
    发明授权
    Polycarbonate resin composition and its molded articles 有权
    聚碳酸酯树脂组合物及其模塑制品

    公开(公告)号：US06664313B2

    公开(公告)日：2003-12-16

    申请号：US10023016

    申请日：2001-12-18

    申请人： Yasuhiro Hirai ,  Kazuhiko Ishii

    发明人： Yasuhiro Hirai ,  Kazuhiko Ishii

    IPC分类号： C08L6900

    CPC分类号： C08L69/00 ,  C08L27/18 ,  C08L83/04 ,  C08L2666/02

    摘要： The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of an aromatic polycarbonate resin (a), 3 to 30 parts by weight of titanium oxide (b), 0.01 to 9 parts by weight of silica (c1), 0.01 to 9 parts by weight of a polyorganosiloxane polymer (c2), and 0.01 to 5 parts by weight of polytetrafluoroethylene (d).

    摘要翻译： 本发明涉及一种聚碳酸酯树脂组合物，其包含100重量份芳族聚碳酸酯树脂（a），3至30重量份氧化钛（b），0.01至9重量份二氧化硅（c1），0.01至 9重量份的聚有机硅氧烷聚合物（c2）和0.01〜5重量份的聚四氟乙烯（d）。

    Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch
    9.
    发明授权
    Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch 失效
    纺纱过程中吸烟倾向偏小，沥青生产过程中的沥青

    公开(公告)号：US5644018A

    公开(公告)日：1997-07-01

    申请号：US491354

    申请日：1995-06-30

    申请人： Takashi Kojima ,  Yasuhiro Hirai ,  Takafumi Yoshimura

    发明人： Takashi Kojima ,  Yasuhiro Hirai ,  Takafumi Yoshimura

    IPC分类号： B01J19/14 ,  C08G61/00 ,  C08G61/10 ,  C10C3/00 ,  D01F9/145 ,  D01F9/24 ,  C10C3/02

    CPC分类号： D01F9/24 ,  C10C3/00

    摘要： Mesophase pitch that has a softening point of no more than 250.degree. C., a pyridine-insolubles content of no more than 50% and a n-heptane solubles content of 3-10%, with the n-heptane solubles experiencing a weight loss of no more than 15% at 450.degree. C. as measured by thermogravimetry is produced by polymerizing a condensed polycyclic aromatic hydrocarbon or a substance containing it in the presence of HF and BF.sub.3. This mesophase pitch is suppressed satisfactorily in its tendency to smoke during spinning and, additionally, it has a low enough softening point to exhibit outstanding spinnability. Hence, the pitch allows for high-volume spinning to be performed continuously for a prolonged time without causing extensive fouling of the surface of spinning nozzles.

    摘要翻译： 软化点不超过250℃的中间相沥青，吡啶不溶物含量不超过50％，正庚烷可溶物含量为3-10％，正庚烷可溶物体重减轻 通过热重分析法测定，在450℃下不超过15％是通过在HF和BF 3存在下聚合稠合的多环芳烃或其含有物质来制备的。 这种中间相沥青在纺丝期间的吸烟倾向令人满意地抑制，此外，它具有足够低的软化点以表现出优异的可纺性。 因此，该间距允许长时间连续地进行高容量纺丝，而不会引起纺丝喷嘴表面的大量污染。