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    • 8. 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。
    • 9. 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。