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    • 6. 发明授权
    • Method for production of crosslinked polyvinyl acetal resin, and crosslinked polyvinyl acetal resin
    • 交联聚乙烯醇缩醛树脂的制造方法和交联聚乙烯醇缩醛树脂
    • US08420298B2
    • 2013-04-16
    • US12450673
    • 2008-04-11
    • Yuki HiroseHiroaki TakeharaMotokuni IchitaniTakayuki Maeda
    • Yuki HiroseHiroaki TakeharaMotokuni IchitaniTakayuki Maeda
    • G03F7/00
    • B41M5/395B41M2205/40B41N1/14C08F216/38C08J3/28C08J2329/14C09D129/14G03F7/038
    • An object of the present invention is to provide a method for producing a cross-linked polyvinyl acetal resin, which can provide a cross-linked polyvinyl acetal resin having high mechanical strength and excellent solvent resistance by a simple method without a cross-linking agent, and can solve such problems as sheet attack, insufficient strength, and instability of viscosity for a long-time storage, and another object of the present invention is to provide a cross-linked polyvinyl acetal resin produced by the above method for producing a cross-linked polyvinyl acetal resin. The method for producing a cross-linked polyvinyl acetal resin comprises the step of irradiating a polyvinyl acetal resin at least having structural units represented by the following formulas (1) to (4) with ultraviolet light having a wavelength in a range of 200 to 365 nm, wherein R1 represents a hydrogen atom or a C1-C20 hydrocarbon group; and R2 represents a group having two or more functional groups, the two or more functional groups each selected from the group consisting of the functional groups represented by the following formulas (5), (6), and (7).
    • 本发明的目的是提供一种生产交联聚乙烯醇缩醛树脂的方法,其可以通过简单的方法提供具有高机械强度和优异的耐溶剂性的交联聚乙烯醇缩醛树脂,而无交联剂, 并且可以解决长时间保存时的片材侵蚀,强度不足,粘度不稳定等问题,本发明的另一目的在于提供一种交联聚乙烯醇缩醛树脂, 连接的聚乙烯醇缩醛树脂。 交联聚乙烯醇缩醛树脂的制造方法包括:将具有下述通式(1)〜(4)表示的结构单元的聚乙烯醇缩醛树脂用200〜365nm的范围的紫外线照射的工序 nm,其中R1表示氢原子或C1-C20烃基; 并且R 2表示具有两个以上官能团的基团,所述两个以上的官能团各自选自由下式(5),(6)和(7)表示的官能团。
    • 7. 发明申请
    • METHOD FOR PRODUCTION OF CROSSLINKED POLYVINYL ACETAL RESIN, AND CROSSLINKED POLYVINYL ACETAL RESIN
    • 交联聚乙烯乙烯树脂和交联聚乙烯乙烯树脂的生产方法
    • US20100112480A1
    • 2010-05-06
    • US12450673
    • 2008-04-11
    • Yuki HiroseHiroaki TakeharaMotokuni IchitaniTakayuki Maeda
    • Yuki HiroseHiroaki TakeharaMotokuni IchitaniTakayuki Maeda
    • G03F7/004C08J3/28G03F7/20
    • B41M5/395B41M2205/40B41N1/14C08F216/38C08J3/28C08J2329/14C09D129/14G03F7/038
    • An object of the present invention is to provide a method for producing a cross-linked polyvinyl acetal resin, which can provide a cross-linked polyvinyl acetal resin having high mechanical strength and excellent solvent resistance by a simple method without a cross-linking agent, and can solve such problems as sheet attack, insufficient strength, and instability of viscosity for a long-time storage, and another object of the present invention is to provide a cross-linked polyvinyl acetal resin produced by the above method for producing a cross-linked polyvinyl acetal resin. The method for producing a cross-linked polyvinyl acetal resin comprises the step of irradiating a polyvinyl acetal resin at least having structural units represented by the following formulas (1) to (4) with ultraviolet light having a wavelength in a range of 200 to 365 nm, wherein R1 represents a hydrogen atom or a C1-C20 hydrocarbon group; and R2 represents a group having two or more functional groups, the two or more functional groups each selected from the group consisting of the functional groups represented by the following formulas (5), (6), and (7).
    • 本发明的目的是提供一种生产交联聚乙烯醇缩醛树脂的方法,其可以通过简单的方法提供具有高机械强度和优异的耐溶剂性的交联聚乙烯醇缩醛树脂,而无交联剂, 并且可以解决长时间保存时的片材侵蚀,强度不足,粘度不稳定等问题,本发明的另一目的在于提供一种交联聚乙烯醇缩醛树脂, 连接的聚乙烯醇缩醛树脂。 交联聚乙烯醇缩醛树脂的制造方法包括:将具有下述通式(1)〜(4)表示的结构单元的聚乙烯醇缩醛树脂用200〜365nm的范围的紫外线照射的工序 nm,其中R1表示氢原子或C1-C20烃基; 并且R 2表示具有两个以上官能团的基团,所述两个以上的官能团各自选自由下式(5),(6)和(7)表示的官能团。
    • 10. 发明申请
    • POLYVINYL ACETAL RESIN COMPOSITION
    • 聚乙烯乙烯基树脂组合物
    • US20110049434A1
    • 2011-03-03
    • US12921450
    • 2009-09-16
    • Kenichi OotsukiMotokuni IchitaniTakayuki MaedaYuki Hirose
    • Kenichi OotsukiMotokuni IchitaniTakayuki MaedaYuki Hirose
    • C08L61/00C08G2/14H01B1/12
    • C04B35/6342B32B17/10761C04B35/04C04B35/111C04B35/18C04B35/453C04B35/46C04B35/468C04B35/486C04B35/565C04B35/581C04B35/584C04B35/597C08F8/28C08F8/48C08L29/14C08L2205/02Y10T428/24926C08L2666/04C08F16/06
    • It is an object of the present invention to provide a polyvinyl acetal resin composition capable of giving a ceramic green sheet which has sufficient flexibility and is hardly damaged even when being formed into a thin film, when the polyvinyl acetal resin composition is used as a binder for a ceramic green sheet. It is another object of the present invention to provide a ceramic slurry, a ceramic paste, a ceramic green sheet, a conductive paste and an interlayer film for laminated glass for automobiles, each produced by using the polyvinyl acetal resin composition.The present invention pertains to a polyvinyl acetal resin composition containing a polyvinyl acetal resin A and a polyvinyl acetal resin B incompatible with the polyvinyl acetal resin A, which is formed by acetalizing a mixed polyvinyl alcohol containing two or more kinds of polyvinyl alcohols having different saponification degrees, and wherein the mixed polyvinyl alcohol contains main two kinds of polyvinyl alcohols in which X and Y satisfy the relationship of the following equation (1): [Formula 1] |X−Y|≧10  (1) in which X represents the saponification degree of any one polyvinyl alcohol a of the polyvinyl alcohols contained in the mixed polyvinyl alcohol and Y represents the saponification degree of a polyvinyl alcohol b other than the polyvinyl alcohol a, and wherein in denoting, by M, the polymerization degree of one polyvinyl alcohol having a higher polymerization degree of the main two kinds of polyvinyl alcohols and denoting the polymerization degree of the other polyvinyl alcohol by N, M and N have the relationship of the following equation (2): [Formula 2] M/N≦3  (2) and a phase composed of the polyvinyl acetal resin A and a phase composed of the polyvinyl acetal resin B form a sea-island structure.
    • 本发明的目的是提供一种聚乙烯醇缩醛树脂组合物,其能够提供具有足够的柔软性并且甚至当形成薄膜时几乎不被损坏的陶瓷生片,当聚乙烯醇缩醛树脂组合物用作粘合剂 用于陶瓷生片。 本发明的另一个目的是提供一种陶瓷浆料,陶瓷浆料,陶瓷生坯片,导电浆料和用于汽车的夹层玻璃的中间膜,它们均通过使用聚乙烯醇缩醛树脂组合物制备。 本发明涉及含有聚乙烯醇缩醛树脂A和与聚乙烯醇缩醛树脂A不相容的聚乙烯醇缩醛树脂B的聚乙烯醇缩醛树脂组合物,其通过缩醛化含有两种或更多种不同皂化物的聚乙烯醇的混合聚乙烯醇而形成 度,并且其中,所述混合聚乙烯醇含有主要的两种聚乙烯醇,其中X和Y满足以下关系式(1):[式1] | X-Y |≥10(1)其中X表示 聚乙烯醇中所含的聚乙烯醇的任何一种聚乙烯醇a的皂化度,Y表示聚乙烯醇a以外的聚乙烯醇b的皂化度,M表示1个聚乙烯醇 主要两种聚乙烯醇聚合度较高的醇,表示其他聚合物的聚合度 乙烯醇由N,M和N具有以下关系式(2):[式2] M / N≦̸ 3(2)和由聚乙烯醇缩醛树脂A组成的相和由聚乙烯醇缩醛树脂 B形成海岛结构。