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    • 1. 发明授权
    • Branched polyacetal resin composition
    • 支化聚缩醛树脂组合物
    • US06753368B2
    • 2004-06-22
    • US09869808
    • 2001-07-05
    • Hidetoshi OkawaKuniaki KawaguchiYoshihisa Tajima
    • Hidetoshi OkawaKuniaki KawaguchiYoshihisa Tajima
    • C08K509
    • C08K5/103C08G2/18C08L59/04C08L2666/22
    • To provide a resin material in which various properties such as excellent appearance and rigidity inherent to a polyacetal resin are maintained and to which the antistatic property is given. That is, a branched polyacetal resin composition, comprising 100 parts by weight of a branched polyacetal copolymer (A) having an oxymethylene group as the main repeating unit and having a branching unit represented by the following formula (I), and 0.1 to 30 parts by weight of a compound (B) having a polyalkylene ether unit as the main constituting component and/or 0.01 to 10 parts by weight of an ester (C) of fatty acid with polyhydroxyl alcohol having a hydroxyl group: wherein m and n each is an integer of 0 to 5; the sum of m+n is 1 to 5; and R is a monovalent organic group having a molecular weight of 40 to 1000.
    • 提供一种树脂材料,其中保持聚缩醛树脂固有的优异外观和刚性等各种性能,并提供抗静电性能。 即,含有作为主要重复单元的具有氧亚甲基的支链聚缩醛共聚物(A)100重量份,具有下述通式(I)所示的分支单元的支链聚缩醛树脂组合物和0.1〜30重量份 的具有聚亚烷基醚单元作为主要成分的化合物(B)和/或0.01至10重量份的具有羟基的多羟基醇的脂肪酸酯(C):其中m和n各自为 0到5的整数; m + n的和为1〜5; R为分子量为40〜1000的一价有机基团。
    • 2. 发明授权
    • Branched polyacetal resin composition
    • 支化聚缩醛树脂组合物
    • US06583203B2
    • 2003-06-24
    • US09869805
    • 2001-07-05
    • Kuniaki KawaguchiHidetoshi OkawaYoshihisa Tajima
    • Kuniaki KawaguchiHidetoshi OkawaYoshihisa Tajima
    • C08K534
    • C08G2/18C08L59/00C08L59/04
    • To offer a resin material in which various properties such as excellent appearance and rigidity inherent to a polyacetal resin are maintained and a weather (light) resistance is improved. That is, a branched polyacetal resin composition comprising 100 parts by weight of a branched polyacetal copolymer (A) having an oxymethylene group as the main repeating unit and having a branching unit represented by the following formula (I), 0.01 to 5 parts by weight of a weather (light) resistant stabilizer (B) and 0.01 to 5 parts by weight of a hindered amine substance (C): wherein m and n each is an integer of 0 to 5; the sum of m+n is 1 to 5; and R is a monovalent organic group having a molecular weight of 40 to 1000.
    • 提供一种树脂材料,其中保持聚缩醛树脂固有的优异的外观和刚性等各种性能,并提高耐候性(耐光性)。 即,含有100重量份作为主要重复单元的具有甲醛基的支链聚缩醛共聚物(A)和由下式(I)表示的支化单元的支链聚缩醛树脂组合物,其为0.01〜5重量份 耐光稳定剂(B)和0.01〜5重量份的受阻胺物质(C):其中m和n各自为0至5的整数; m + n的和为1〜5; R为分子量为40〜1000的一价有机基团。
    • 4. 发明申请
    • Polyacetal resin composition
    • 聚缩醛树脂组合物
    • US20050182200A1
    • 2005-08-18
    • US10510337
    • 2003-05-29
    • Kuniaki KawaguchiHidetoshi OkawaYoshihisa Tajima
    • Kuniaki KawaguchiHidetoshi OkawaYoshihisa Tajima
    • C08L59/04C08G2/12C08G2/18C08L59/00
    • C08G2/12C08L59/00C08L2205/02C08L2666/16
    • A polyacetal resin composition having high rigidity and also excellent in dimensional stability and creep characteristics is provided. A polyacetal resin composition prepared by blending (A) 99.9 to 90 parts by weight of a linear polyacetal resin having a melt index of 1 to 50 g/min obtained by copolymerizing (a) 99.5 to 97.5% by weight of trioxane and (b) 0.5 to 2.5% by weight of a compound selected from a mono-functional cyclic ether compound and a mono-functional cyclic formal compound, with (B) from 0.1 to 10 parts by weight of a branched or crosslinked polyacetal resin having a melt index of 0.1 to 10 g/min obtained by copolymerizing (a) 99.49 to 95.0% by weight of trioxane, (b) 0.5 to 4.0% by weight of a compound selected from a mono-functional cyclic ether compound and mono-functional cyclic formal compound and (c) 0.01 to 1.0% by weight of a poly-functional glycidyl ether compound with the number of functional groups of 3 to 4, in which (A) and (B) are selected so that the ratio between the melt index of (A) and the melt index of (B) can satisfy the relation of the following formula: 0.02≦MIB/MIA≦1.5   (1) (where MIA is a melt index of (A) and MIB is a melt index of (B))
    • 提供了具有高刚性并且尺寸稳定性和蠕变特性优异的聚缩醛树脂组合物。 通过共混(A)99重量份至90重量份熔融指数为1〜50克/分的线性聚缩醛树脂(a)99.5〜97.5重量%的三恶烷和(b)共聚合得到的聚缩醛树脂组合物, 0.5〜2.5重量%的选自单官能环状醚化合物和单官能环状缩甲醛化合物的化合物,(B)0.1〜10重量份的熔融指数为 通过共聚合(a)99.49〜95.0重量%的三恶烷,(b)0.5〜4.0重量%的选自单官能环醚化合物和单官能环状缩甲醛化合物的化合物,得到0.1〜10g / min,以及 (c)0.01〜1.0重量%的官能团数为3〜4的多官能缩水甘油醚化合物,其中选择(A)和(B),使得(A )和(B)的熔融指数可以满足下列公式的关系:<?在线公式描述 =“线上公式”end =“lead”?> 0.02 <= MI / MI <= 1.5(1)<?in-line-formula 描述=“在线公式”end =“tail”?>(其中MI A A是熔融指数(A)和MI B B是熔体指数( B))
    • 5. 发明授权
    • Branched polyacetal resin composition
    • 支化聚缩醛树脂组合物
    • US06737475B1
    • 2004-05-18
    • US09869806
    • 2001-07-05
    • Yoshihisa TajimaHidetoshi OkawaKuniaki Kawaguchi
    • Yoshihisa TajimaHidetoshi OkawaKuniaki Kawaguchi
    • C08L5900
    • C08G2/18C08L59/04C08L2666/06
    • To provide a polyacetal resin material in which an excellent sliding property is given and the appearance, dimensional precision, mechanical properties, etc. of the molded article thereof are improved as well. That is, a branched polyacetal resin composition, comprising 100 parts by weight of a branched polyacetal copolymer (A) having an oxymethylene group as the main repeating unit and having a specific branching unit, and 0.5 to 40 parts by weight of at least one polymer (B) selected from the group consisting of the following polymer (B-1) and (B-2), i.e. polymer (B-1): a graft or block copolymer prepared from an olefin polymer (b-1) and at least one vinyl polymer (b-2); and polymer (B-2): a modified olefin polymer in which an olefin polymer (b-3) is modified with at least one compound selected from the group consisting of an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride and derivatives thereof and/or 0.1 to 5 parts by weight of a lubricant (C).
    • 为了提供具有优异滑动性的聚缩醛树脂材料,并且其成型制品的外观,尺寸精度,机械性能也得到改善。 也就是说,支链聚缩醛树脂组合物包含100重量份具有甲醛基作为主要重复单元并具有特定分支单元的支链聚缩醛共聚物(A)和0.5至40重量份的至少一种 选自以下聚合物(B-1)和(B-2),聚合物(B-1)的聚合物(B):由烯烃聚合物(b-1​​)制备的接枝或嵌段共聚物 至少一种乙烯基聚合物(b-2); 和聚合物(B-2):烯烃聚合物(b-3)用至少一种选自不饱和羧酸,不饱和羧酸酐及其衍生物和/或0.1的化合物改性的改性烯烃聚合物 至5重量份的润滑剂(C)。
    • 6. 发明授权
    • Polyacetal copolymer and method for producing the same
    • 聚缩醛共聚物及其制造方法
    • US06426393B1
    • 2002-07-30
    • US09762064
    • 2001-02-01
    • Yoshihisa TajimaHidetoshi Okawa
    • Yoshihisa TajimaHidetoshi Okawa
    • C08L6102
    • C08G2/18
    • To provide polyacetal which has excellent shock resistance, rigidity and creep resistance as essential properties of the polymer and makes a high flowability and an excellent molding property upon molding possible by improving the thermal stability. In the manufacture of a polyacetal copolymer by a copolymerization of 100 parts by weight of trioxane (a) with 0.05-20 parts by weight of a cyclic ether compound (b) which is copolymerizable with trioxane and 0.001-10 parts by weight of a mono-functional glycidyl compound (c), the mono-functional glycidyl compound (c) having a chlorine content of not more than 0.3% by weight is used.
    • 提供作为聚合物的基本特性而具有优异的抗冲击性,刚性和抗蠕变性的聚缩醛,并且通过提高热稳定性,可以提高成型性,成型性优异。 在通过共聚合100重量份三恶烷(a)与0.05〜20重量份可与三恶烷共聚的环状醚化合物(b)和0.001-10重量份单体 功能性缩水甘油基化合物(c),使用氯含量不超过0.3重量%的单官能缩水甘油基化合物(c)。
    • 7. 发明授权
    • Copolyacetal
    • 共聚缩醛
    • US06255440B1
    • 2001-07-03
    • US09646752
    • 2000-09-21
    • Hidetoshi OkawaYoshihisa Tajima
    • Hidetoshi OkawaYoshihisa Tajima
    • C08G222
    • C08L59/00C08G2/22
    • Polyacetal copolymers, obtained by copolymerizing (A) 100 parts by weight of trioxane, (B) 0.01 to 10 part(s) by weight of at least one compound selected from among glycidyl ether compounds of the following general formula (I), (II) or (III) and (C) 0 to 20 part(s) by weight of a cyclic ether compound [excluding the glydicyl ether compound (B)] copolymerizable with trioxane, are a polyacetal resin having a high rigidity, excellent creep properties, a high surface hardness and excellent sliding properties: wherein R1 is a C1-12 alkyl group, an aryl group or a substtituted aryl group; wherein R2 represents a C2-20 polyalkylene oxide glycol residue; wherein R4 represents an alkyl group having 1 to 30 carbon atoms; R5 represents an alkylene group having 1 to 30 carbon atoms.
    • 通过共聚合(A)100重量份三恶烷,(B)0.01〜10重量份的至少一种选自下述通式(I)的缩水甘油醚化合物,(II)的缩水甘油醚化合物 )或(III)和(C)0〜20重量份可与三恶烷共聚的环醚化合物[不包括乙二醇醚化合物(B)]是具有高刚性,优异蠕变性能的聚缩醛树脂, 高表面硬度和优异的滑动性能:其中R1为C1-12烷基,芳基或取代的芳基;其中R2表示C2-20聚环氧烷二醇残基;其中R4表示1〜30的烷基 碳原子 R 5表示碳原子数1〜30的亚烷基。
    • 9. 发明授权
    • Polyacetal copolymer
    • 聚缩醛共聚物
    • US06365704B1
    • 2002-04-02
    • US09869807
    • 2001-07-05
    • Hidetoshi OkawaKaoru Yamamoto
    • Hidetoshi OkawaKaoru Yamamoto
    • C08G1226
    • C08G2/22C08G2/18C08G2/20C08G12/26
    • To provide a resin material in which various properties of a polyacetal resin such as excellent appearance, slidability and thermal stability are maintained and a rigidity is improved as well. That is, a polyacetal copolymer which is prepared by a copolymerization of 100 parts by weight of trioxane (A), 0.0005 to 2 parts by weight of the component (B), which is a compound (B-1) having at least three glycidyl groups in the molecule or a compound (B-2) having at least two epoxy groups in the molecule, and 0 to 20 parts by weight of a cyclic ether compound (C) copolymerizable with trioxane, and which has a total terminal group amount of 15 to 150 mmol/kg, when (B) is (B-2).
    • 提供一种树脂材料,其中保持诸如优异的外观,滑动性和热稳定性的聚缩醛树脂的各种性质以及改善刚性。 即,通过共聚合100重量份的三恶烷(A),0.0005〜2重量份的成分(B),即具有至少3个缩水甘油基的化合物(B-1)而制备的聚缩醛共聚物 分子中具有至少两个环氧基的化合物(B-2)和0〜20重量份与三恶烷可共聚的环状醚化合物(C),并且其末端基总量为 (B)为(B-2)时为15〜150mmol / kg。