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    • 1. 发明授权
    • Resin composition and use thereof
    • 树脂组合物及其用途
    • US06710135B2
    • 2004-03-23
    • US10088903
    • 2002-03-25
    • Junji TanKazuo WakimuraShoji Obuchi
    • Junji TanKazuo WakimuraShoji Obuchi
    • C08L6702
    • B32B27/10B32B9/00B32B27/36C08J5/18C08J2367/04C08J2369/00C08L67/04C08L69/00D01F6/92D04H1/4326D04H1/435D04H1/4382
    • A resin composition comprising: 30 to 95 parts by weight of a biodegradable polylactic acid resin (A), and 70 to 5 parts by weight of a specified polyalkylene carbonate (B), providing that the sum of components (A) and (B) is 100 parts by weight. The invention provides an excellent resin composition which is biodegradable, transparent, flexible and has gas barrier properties and which is free from the occurrence of bleedout with the passage of time. Further, the resin composition of the invention is excellent in moldability, so that a variety of molded articles can be produced by various molding techniques and put to practical use. The resultant molded articles, when disposed of after use, exhibit high biodegradability in natural environment.
    • 一种树脂组合物,其特征在于,含有30〜95重量份的生物降解性聚乳酸树脂(A)和70〜5重量份的特定的碳酸亚烷基酯(B),其中,成分(A)和成分(B)之和为 100重量份。 本发明提供了一种优异的树脂组合物,其是可生物降解的,透明的,柔性的并且具有阻气性,并且随着时间的流逝而没有出现渗漏。 此外,本发明的树脂组合物的成型性优异,可以通过各种成型技术制造各种成型品,并投入实际使用。 得到的模塑制品在使用后处理在自然环境中表现出高生物降解性。
    • 7. 发明申请
    • Biodegradable Resin Composition
    • US20070298237A1
    • 2007-12-27
    • US11587524
    • 2005-04-25
    • Masaya GoinoYasuhiro KakidaShoji Obuchi
    • Masaya GoinoYasuhiro KakidaShoji Obuchi
    • C08L101/00C08K5/19C08L101/16C08L67/04C08K5/55
    • C08K5/19C08K5/0075C08K5/55C08L67/04Y10T428/13Y10T428/1386Y10T428/249953Y10T428/31786
    • [Object] To provide a biodegradable resin composition that exhibits excellent antistatic properties and antifogging properties while maintaining its molecular weight to such a degree as to provide practically satisfactory strength of a molded article molded even according to a kneading process. [Solving Means] A biodegradable resin composition includes a surfactant represented by following Formula (A) and at least one compatibilizer in a ratio of the former to the latter of 90:10 to 10:90 (percent by weight), in which the at least one compatibilizer is selected from reaction products between boric acid and at least one selected from the group consisting of monohydric alcohols, alkylphenols, and polyhydric alcohols such as glycerol, diglycerol, polyglycerols, ethylene glycol, propylene glycol, sorbitol, sorbitan, pentaerythritol, trimethylolpropane and sucrose (hereinafter these are referred to as “alcohols (b)”); reaction products between boric acid and fatty acid esters derived from the alcohols (b) and fatty acids; reaction products between boric acid and alkylene oxide adducts of the alcohols (b); and reaction products between boric acid and fatty acid esters derived from fatty acids and alkylene oxide adducts of the alcohols (b): wherein R1, R2, R3, and R4 are the same as or different from one another and each represent a straight- or branched-chain alkyl group, alkenyl group, hydroxyalkyl group, alkylaryl group, arylalkyl group, each of which has one to thirty carbon atoms, and -(A1O)fRa group, wherein A1 represents an alkylene group having two to four carbon atoms; “f” denotes 1 to 50; and Ra represents a straight- or branched-chain alkyl group, alkenyl group, hydroxyalkyl group, and alkylaryl group, each of which has one to thirty carbon atoms, etc.; X1 represents a structure having at least one SO3− group and at least one COOR7 group; and “m” denotes an integer of 1 or more.