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    • 1. 发明申请
    • RESIN COMPOSITION AND MOLDED ARTICLE THEREOF
    • 树脂组合物及其成型品
    • US20130131270A1
    • 2013-05-23
    • US13813046
    • 2011-07-28
    • Mitsuo ShibutaniKaoru InoueNorihito Sakai
    • Mitsuo ShibutaniKaoru InoueNorihito Sakai
    • C08L29/04
    • C08L29/04C08L51/08C08L53/02C08L2205/03C08L53/025C08L87/005C08L77/00
    • There is provided a resin composition affording a melt-molded article having excellent gas barrier properties and flex crack resistance. The present invention relates to a resin composition comprising a polyvinyl alcohol resin (A) having a 1,2-diol structural unit represented by the following general formula (1), a styrene-based thermoplastic elastomer (B), and a polyamide graft block copolymer (C) containing a polymer block of an aromatic vinyl compound and a polymer block of an olefinic compound in a main chain and having a graft chain composed of a polyamide: wherein each of R1, R2, and R3 independently represents a hydrogen atom or an organic group, X represents a single bond or a linking chain, and each of R4, R5, and R6 independently represents a hydrogen atom or an organic group.
    • 提供了提供具有优异的阻气性和抗开裂性的熔融模制品的树脂组合物。 本发明涉及一种树脂组合物,其包含具有由以下通式(1)表示的1,2-二醇结构单元的聚乙烯醇树脂(A),苯乙烯类热塑性弹性体(B)和聚酰胺接枝嵌段 共聚物(C),其包含芳族乙烯基化合物的聚合物嵌段和主链中的烯属化合物的聚合物嵌段,并且具有由聚酰胺构成的接枝链:其中R 1,R 2和R 3各自独立地表示氢原子或 有机基团,X表示单键或连接链,R 4,R 5和R 6各自独立地表示氢原子或有机基团。
    • 9. 发明申请
    • POLYVINYL ALCOHOL-BASED RESIN COMPOSITION
    • 聚乙烯醇基树脂组合物
    • US20120041118A1
    • 2012-02-16
    • US13266546
    • 2010-04-27
    • Mitsuo ShibutaniKaoru InoueYuichi Takahashi
    • Mitsuo ShibutaniKaoru InoueYuichi Takahashi
    • C08K5/09
    • C08J5/18C08F216/02C08J2329/04C08K5/098C08L29/04
    • The present invention provides a polyvinyl alcohol-based resin (PVOH-based resin) composition having less coloration from melt processing and having high aging stability of the melt viscosity. The present invention relates to a polyvinyl alcohol-based resin composition comprising a polyvinyl alcohol-based rein having a structural unit represented by the following formula (1) and having an absorbance of 0.1 to 0.3 of 280 nm in an ultraviolet absorbance spectrum as a 4 mass % aqueous solution, a carboxylic acid and an alkaline (earth) metal salt, wherein when an aqueous solution of the polyvinyl alcohol-based resin composition is prepared so as to have a content of the polyvinyl alcohol-based resin of 4 mass %, the pH of the aqueous solution at 20° C. is from 5.5 to 7: [wherein R1, R2 and R3 independently represent a hydrogen atom or an organic group, X represents a single bond or a bonding chain, and R4, R5 and R6 independently represent a hydrogen atom or an organic group].
    • 本发明提供一种熔融加工着色少,熔融粘度老化稳定性高的聚乙烯醇系树脂(PVOH系树脂)组合物。 本发明涉及一种聚乙烯醇类树脂组合物,其包含具有由下式(1)表示的结构单元并且在紫外吸收光谱中具有280nm的吸光度为0.1至0.3的吸光度为4的聚乙烯醇系树脂作为4 质量%水溶液,羧酸和碱土金属盐,其中当制备聚乙烯醇类树脂组合物的水溶液以使聚乙烯醇类树脂的含量为4质量%时, 20℃时的水溶液的pH为5.5〜7 [式中,R 1,R 2和R 3独立地表示氢原子或有机基团,X表示单键或键合链,R4,R5,R6 独立地表示氢原子或有机基团]。