Polyacetal resin composition exhibiting high retentivity of mechanical
strengths
    1.
    发明授权
    Polyacetal resin composition exhibiting high retentivity of mechanical strengths 失效
    具有高机械强度保持性的聚缩醛树脂组合物

    公开(公告)号:US5952410A

    公开(公告)日:1999-09-14

    申请号:US11382

    申请日:1998-01-09

    摘要: Disclosed is a polyacetal resin composition comprising 100 parts by weight of polyacetal resin having a melting temperature of from 150 to 161.degree. C.; 0.01 to 5.0 parts by weight of at least one bisamide compound of formula (1) ##STR1## and 0.0001 to 5.0 parts by weight of at least monoamide compound of formula (2) ##STR2## in which formulae (1) and (2) each of R.sup.1, R.sup.3 and R.sup.6 independently is an alkyl or an alkenyl, and R.sup.2 and R.sup.7 independently is an alkylene, an alkenylene, or --R.sup.4 --Ph--R.sup.5 -- (each of R.sup.4 and R.sup.5 independently is a single bond or a methylene, and Ph is a phenylene). The resin composition of the present invention has excellent mechanical strength retentivity during cooling-heating cycles. For example, not only occurrence of whitening, crazing or cracking but also lowering in impact resistance can be suppressed even after the resin composition experiences repeated cooling-heating cycles. Thus, the resin composition of the present invention can be advantageously used in various applications where repeated heating-cooling cycles are necessarily experienced. Also, disclosed is an insert molded article comprising the above-mentioned resin composition and a shaped part unified with the resin composition by insert molding, which article exhibits excellent cooling-heating cycle resistance with respect to the mechanical strength.

    摘要翻译: PCT No.PCT / JP96 / 02512 Sec。 371日期1998年1月9日 102(e)1998年1月9日PCT PCT 1996年9月5日PCT公布。 公开号WO97 / 09382 日期1997年3月13日公开是一种聚缩醛树脂组合物,其包含100重量份熔融温度为150至161℃的聚缩醛树脂; 0.01至5.0重量份的式(1)的至少一种双酰胺化合物和0.0001至5.0重量份的式(2)的至少一酰胺化合物,其中式(1)和(2)各自为R 1,R 3和 R6独立地是烷基或烯基,R2和R7独立地是亚烷基,亚烯基或-R4-Ph-R5-(R4和R5各自独立地是单键或亚甲基,Ph是亚苯基) 。 本发明的树脂组合物在冷却加热循环中具有优异的机械强度保持性。 例如,即使在树脂组合物经历反复的冷却加热循环之后,也不仅可以抑制美白,龟裂或龟裂的发生,而且耐冲击性的降低。 因此,本发明的树脂组合物可以有利地用于必须经历反复加热 - 冷却循环的各种应用中。 此外,公开了包含上述树脂组合物和通过嵌入成型与树脂组合物一体化的成形部件的嵌入成型制品,该制品相对于机械强度显示出优异的冷却 - 加热循环阻力。

    Thermoplastic resin integrated structure
    2.
    发明授权
    Thermoplastic resin integrated structure 有权
    热塑性树脂一体化结构

    公开(公告)号:US06977117B2

    公开(公告)日:2005-12-20

    申请号:US09773627

    申请日:2001-02-02

    IPC分类号: B32B27/08 B32B27/42

    摘要: A thermoplastic resin integrated structure, which comprises a structural member (A) molded from a resin composition (a) comprising 5-80 wt. % of polyacetal resin (a-1) and 20-95 wt. % of at least one resin (a-2) selected from the group consisting of polyolefin resin, olefinic elastomer and hydrogenated butadienic elastomer, and a structural member (B) molded from thermoplastic resin (b), the integrated structure having at least one structure of the structural member (A) and the structural member (B) as integrated together side by side has a good bonding strength between the structural member (A) molded from polyacetal-based resin and the structural member (B) molded from other thermoplastic resin, typically polyethylene.

    摘要翻译: 一种热塑性树脂一体结构,其包括由包含5-80wt。%的树脂组合物(a)成型的结构构件(A) %的聚缩醛树脂(a-1)和20-95wt。 至少一种选自聚烯烃树脂,烯烃弹性体和氢化丁二烯类弹性体的树脂(a-2)的%和由热塑性树脂(b)成型的结构构件(B),所述一体结构具有至少一种结构 结构构件(A)和结构构件(B)一并一体地在由聚缩醛类树脂成形的结构构件(A)和由其它热塑性树脂成形的结构构件(B)之间具有良好的接合强度 ,通常为聚乙烯。

    Polyacetal resin composition
    3.
    发明授权
    Polyacetal resin composition 失效
    聚缩醛树脂组合物

    公开(公告)号:US06262165B1

    公开(公告)日:2001-07-17

    申请号:US09380567

    申请日:1999-09-07

    IPC分类号: C08K303

    CPC分类号: C08L59/00 C08K3/04 C08K7/06

    摘要: A polyacetal resin composition which comprises (A) 100 parts by weight of a polyacetal resin, (B) 1.0-30 parts by weight of an electrically conductive carbon black, and (C) 1.0-30 parts by weight of a carbon fiber of 120-350 &mgr;m in average fiber length.

    摘要翻译: 一种聚缩醛树脂组合物,其包含(A)100重量份聚缩醛树脂,(B)1.0-30重量份导电炭黑,和(C)1.0-30重量份碳纤维120 平均纤维长度为-350 mum。