Photocurable resin compositions
    2.
    发明授权
    Photocurable resin compositions 失效
    光固化树脂组合物

    公开(公告)号:US4093577A

    公开(公告)日:1978-06-06

    申请号:US773650

    申请日:1977-03-02

    摘要: A photocurable resin composition comprising a photopolymerizable photosensitizing compound (A) together with or without a photopolymerizable photosensitizing compound (B), the compound (A) being prepared by esterifying with acrylic or methacrylic acid or the like a resin having an OH equivalent of 150 - 500 produced by esterification of a dialkylaminobenzoic acid, a polybasic acid or, if desired, a fatty acid having at least 9 carbon atoms, with a polyhydric alcohol, and the compound (B) being prepared by repeating the aforesaid process for preparing the compound (A) except that a carboxyl group-containing benzophenone derivative is substituted for the dialkylaminobenzoic acid.

    摘要翻译: 一种光可固化树脂组合物,其包含可光聚合的光敏化合物(A)和/或不含可光聚合的光敏化合物(B),化合物(A)通过用丙烯酸或甲基丙烯酸等与OH当量为150〜 通过二烷基氨基酸,多元酸或如果需要,具有至少9个碳原子的脂肪酸与多元醇酯化生成的化合物(B),并且通过重复上述制备化合物的方法制备化合物(B) A),只是含羧基的二苯甲酮衍生物代替二烷基氨基苯甲酸。

    Magnetic recording medium
    3.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4526837A

    公开(公告)日:1985-07-02

    申请号:US375261

    申请日:1982-04-23

    摘要: This invention provides a magnetic recording medium with excellent electromagnetic characteristics and running durability. According to the invention, a magnetic powder is kneaded with a cross-linkable or polymerizable resin binder, together with a phosphoric ester having a polymerizable, unsaturated double bond or bonds, the resulting coating material is applied to a substrate, and then the coating is cross-linked or polymerized. The addition of the phosphoric ester in place of an ordinary dispersing agent improves the mechanical properties of the magnetic coating and the durability and running quality of the magnetic recording medium.

    摘要翻译: PCT No.PCT / JP81 / 00204 Sec。 一九八二年四月二十三日 102(e)日期1982年4月23日PCT提交1981年8月28日PCT公布。 出版物WO82 / 00914 1982年3月18日。本发明提供具有优异的电磁特性和运行耐久性的磁记录介质。 根据本发明,将磁性粉末与可交联或可聚合的树脂粘合剂与具有可聚合的不饱和双键或键合的磷酸酯一起捏合,将所得的涂料施加到基材上,然后将涂层 交联或聚合。 添加磷酸酯代替普通分散剂可改善磁性涂层的机械性能和磁记录介质的耐久性和运行质量。

    Magnetic recording medium
    4.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4511629A

    公开(公告)日:1985-04-16

    申请号:US463419

    申请日:1983-02-03

    摘要: In a magnetic recording medium made by applying a non-magnetic undercoat and a magnetic top coat on a base, the undercoat comprises a radiation-curable coating material which contains a compound with a molecular weight of not less than 400, having one type of double bond selected from among acrylic, allylic, and maleic double bonds, the undercoat being formed by exposure to radiation. Specifically, the undercoating material contains at least two types of compounds selected from (A) those having a molecular weight of over 5000, preferably over 8000 and having two or more double bonds selected as above, (B) those having a molecular weight of 400 or more but less than 500, preferably in the range of 600 to 3000, and two or more double bonds selected as above, and (C) those having a molecular weight of less than 400 and one or more double bonds selected from among acrylic, allylic, maleic, and styrenic double bonds. At least two types of the compounds are used in a mixing ratio of 0-90 wt % (A), 0-80 wt % (B), and 0-50 wt % wt % (C).

    摘要翻译: 在通过在基底上施加非磁性底涂层和磁性面漆制成的磁记录介质中,底涂层包含含有分子量不小于400的化合物的辐射固化涂层材料,具有一种类型的双 键从丙烯酸,烯丙基和马来双键中选择,底涂层通过暴露于辐射形成。 具体地说,底涂层材料含有至少两种选自(A)分子量超过5000,优选超过8000,具有两个以上选自上述双键的化合物,(B)分子量为400 或更多但小于500,优选在600至3000的范围内,以及如上选择的两个或更多个双键,和(C)分子量小于400的那些和选自丙烯酸, 烯丙基,马来酸和苯乙烯双键。 以0-90重量%(A),0-80重量%(B)和0-50重量%重量(C)的混合比使用至少两种类型的化合物。