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    • 2. 发明授权
    • Polyester-based resin composition and shaped articles
    • 聚酯类树脂组合物和成型制品
    • US06733853B2
    • 2004-05-11
    • US10081217
    • 2002-02-25
    • Masahiko TakashimaKoji YamamotoHiroyuki Nanba
    • Masahiko TakashimaKoji YamamotoHiroyuki Nanba
    • C08L7700
    • C08L67/02Y10T428/1352Y10T428/31725Y10T428/31739C08L77/00
    • The polyester-based resin composition of the present invention comprises a melt blend (C) consisting of a polyamide resin (A) and a polyester resin (B). The polyester-based resin composition satisfies the following formulas 1 and 2: P×C/100≦25  (1) Y/X×100≧90  (2) wherein P is a concentration, ppm, of a phosphorus compound in the polyamide resin (A) in terms of phosphorus atom; C is a content, % by mass, of the polyamide resin (A) in the melt blend (C); X is a lightness of a 2-mm thick plate which is molded only from the polyester resin (B); and Y is a lightness of a 2-mm thick plate which is molded from the melt blend (C). By regulating the phosphorus concentration and the polyamide resin (A) content so as to meet the limitation of formula 1, the polyester-based resin composition and a shaped article or packaging container made thereof are effectively prevented from the darkening due to the deposition of antimony metal despite the blending of a polyamide resin, thereby attaining a high clearness as defined by formula 2.
    • 本发明的聚酯类树脂组合物包含由聚酰胺树脂(A)和聚酯树脂(B)组成的熔融共混物(C)。 聚酯类树脂组合物满足下式1和2:其中P是聚磷酰胺树脂(A)中磷化合物的磷原子浓度,ppm; C是熔融共混物(C)中的聚酰胺树脂(A)的含量%质量%。 X是仅由聚酯树脂(B)成型的2mm厚的板的亮度; Y是由熔融共混物(C)成型的2mm厚的板的亮度。 通过调节磷浓度和聚酰胺树脂(A)含量以满足式1的限制,可以有效地防止聚酯类树脂组合物及其制成的成型制品或包装容器由于沉积锑而变黑 尽管混合了聚酰胺树脂,从而获得如式2所定义的高清晰度。
    • 8. 发明授权
    • Polyamide resin composition
    • 聚酰胺树脂组合物
    • US06414064B1
    • 2002-07-02
    • US09949908
    • 2001-09-12
    • Hideharu MatsuokaHideaki OkaShigeru Sasaki
    • Hideharu MatsuokaHideaki OkaShigeru Sasaki
    • C08L7700
    • C08L77/00C08L25/18C08L77/02C08L77/06C08L25/00
    • The polyamide resin composition of the present invention comprises 100 parts by weight of a polyamide resin (A) having dicarboxylic acid units (a) comprising from 60 to 100 mol % of terephthalic acid repeat units and diamine units (b) comprising from 60 to 100 mol % of C6-18 aliphatic alkylenediamine repeat units, and from 1 to 100 parts by weight of a polybromostyrene (B), comprising from 0.5 to 100% by weight of a polybromostyrene having an epoxy group. Molded articles prepared from the polyamide resin composition of the present invention have good flame retardancy, good chemical resistance, good surface appearance and good blistering resistance.
    • 本发明的聚酰胺树脂组合物包含100重量份具有二羧酸单元(a)的聚酰胺树脂(A),其包含60至100摩尔%的对苯二甲酸重复单元和二胺单元(b),其包含60至100 mol%的C 6-18脂族亚烷基二胺重复单元,和1至100重量份的聚溴苯乙烯(B),其包含0.5至100重量%的具有环氧基的聚溴苯乙烯。 由本发明的聚酰胺树脂组合物制备的模制品具有良好的阻燃性,良好的耐化学性,良好的表面外观和良好的起泡性。