NONWOVEN FABRICS
    2.
    发明授权
    NONWOVEN FABRICS 有权
    非织造织物

    公开(公告)号:EP2112257B1

    公开(公告)日:2011-06-29

    申请号:EP07708105.7

    申请日:2007-02-06

    摘要: A water-soluble polyvinyl alcohol resin fiber obtained by melt-spinning a material containing as the main component a water-soluble polyvinyl alcohol resin having 1,2-diol structural units represented by the general formula (1); and nonwoven fabrics made by using the fiber. The resin is excellent in the solubility in water at low temperature and is depressed in the bubbling as observed in being dissolved in water. Additionally, the invention permits the use of completely saponified PVA in melt forming, which brings about a depression in the production of acetic acid smell and an improve in the working atmosphere: [Chemical formula 1] (1) wherein R1, R2, R3, R4, R5 and R6 are each hydrogen or a monovalent organic group and may be the same or different from each other; and X is a single bond or a connecting chain.

    摘要翻译: 一种水溶性聚乙烯醇系树脂纤维,其是将含有以通式(1)表示的具有1,2-二醇结构单元的水溶性聚乙烯醇树脂作为主成分的材料熔融纺丝而成的。 以及使用该纤维制成的无纺布。 该树脂在低温下在水中的溶解性优异,并且在溶于水中时观察到的起泡下降。 另外,本发明允许在熔融成型中使用完全皂化的PVA,这导致乙酸气味产生的下降和工作气氛的改善:[化学式1](1)其中R1,R2,R3, R4,R5和R6各自为氢或一价有机基团并且可以彼此相同或不同; X是单键或连接链。

    DISPERSION STABILIZER FOR VINYL COMPOUND SUSPENSION POLYMERIZATION
    3.
    发明公开
    DISPERSION STABILIZER FOR VINYL COMPOUND SUSPENSION POLYMERIZATION 有权
    分散剂ÜE E EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN

    公开(公告)号:EP2058342A1

    公开(公告)日:2009-05-13

    申请号:EP06782104.1

    申请日:2006-08-01

    IPC分类号: C08F216/06 C08F2/20 C08L29/04

    摘要: A dispersion stabilizer for vinyl compound suspension polymerization with which due to excellence in dispersion stability at polymerization, there can be obtained vinyl chloride polymer particles with sharp particle size distribution and high bulk density, and with which there can be produced vinyl chloride polymer particles being less in wet foam ratio, being resistant to formation of foamy polymer or polymer scale attributed to dry foam, further being less in staining and excelling in heat resistance. There is provided a dispersion stabilizer comprised of a PVA resin of 65 to 87 mol% saponification degree having a 1,2-diol component in its side chain.

    摘要翻译: 用于乙烯基化合物悬浮聚合的分散稳定剂,由于聚合时分散稳定性优异,可以获得具有尖锐粒度分布和高堆积密度的氯乙烯聚合物颗粒,并且可以生产出氯乙烯聚合物颗粒较少 在湿泡沫比中,耐泡沫聚合物的形成或归因于干泡沫的聚合物垢,进一步减少染色和耐热性优异。 提供一种分散稳定剂,其由其侧链中具有1,2-二醇组分的65-87mol%皂化度的PVA树脂组成。

    AQUEOUS EMULSION AND PROCESS FOR PRODUCTION THEREOF
    8.
    发明公开
    AQUEOUS EMULSION AND PROCESS FOR PRODUCTION THEREOF 有权
    WÄSSRIGE乳液在HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP2216348A1

    公开(公告)日:2010-08-11

    申请号:EP08854380.6

    申请日:2008-11-26

    摘要: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 µm and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.

    摘要翻译: 本发明提供一种水性乳液,其包含聚乙烯醇类树脂作为分散剂,以及包含衍生自烯键式不饱和单体的结构单元的聚合物作为分散质,可从其中获得具有优异透明性的膜,以及 其机械稳定性,化学稳定性,冷冻稳定性和储存稳定性优异,及其制造方法,涉及分散质的平均粒径为100〜450μm,表观接枝率 的基于分散质的65〜75%的聚乙烯醇系树脂及其制造方法。

    ACETOACETIC-ESTER-GROUP CONTAINING POLYVINYL ALCOHOL RESIN, RESIN COMPOSITION AND USE THEREOF
    9.
    发明公开
    ACETOACETIC-ESTER-GROUP CONTAINING POLYVINYL ALCOHOL RESIN, RESIN COMPOSITION AND USE THEREOF 有权
    ACETESSIG-ESTERGRUPPE MIT POLYVINYLALKOHOLHARZ,HARZZUSAMMENSETZUNG UND DEREN VERWENDUNG

    公开(公告)号:EP1930352A1

    公开(公告)日:2008-06-11

    申请号:EP06796548.3

    申请日:2006-08-18

    摘要: An object of the present invention is to provide a new acetoacetic ester group-containing polyvinyl alcohol-based resin that contains less amount of water-insoluble matter and is excellent in transparency and viscosity stability when converted into an aqueous solution, and that realizes excellent water resistance by combined use of a crosslinking agent. The invention provides an acetoacetic ester group-containing polyvinyl alcohol-based resin containing a structural unit represented by the general formula (1):

    wherein at least one of R 1 and R 2 represents an acetoacetyl group, R 3 , R 4 , R 5 , R 6 , R 7 and R 8 each independently represents an arbitrary substituent, and X represents a single bond or an arbitrary bonding chain.

    摘要翻译: 本发明的目的是提供一种含有较少量的水不溶性物质的新的含有乙酰乙酸酯基的聚乙烯醇系树脂,并且在转化为水溶液时的透明性和粘度稳定性优异,实现优异的水 通过组合使用交联剂的阻力。 本发明提供含有由通式(1)表示的结构单元的含乙酰乙酸酯基的聚乙烯醇系树脂:其中R 1和R 2中的至少一个表示乙酰乙酰基,R 3,R 4,R 5 中,R 6,R 7和R 8各自独立地表示任意的取代基,X表示单键或任意键合链。