Urea-aldehyde resins
    2.
    发明授权
    Urea-aldehyde resins 失效
    脲醛树脂

    公开(公告)号:US4129716A

    公开(公告)日:1978-12-12

    申请号:US804130

    申请日:1977-06-06

    Applicant: Heinz Schulze

    Inventor: Heinz Schulze

    CPC classification number: C08G12/12 C08G12/10 C08G65/3255

    Abstract: A novel polyether containing urea-aldehyde resin useful in plastics, sealants, molds, foams and coatings. The novel composition comprises the condensation product of a ureido-terminated polyoxyalkylene and an aldehyde. The ureido terminated polyoxyalkylene compound is prepared by reacting a primary amine terminated polyoxyalkylene with urea at temperatures in the range of about 120.degree. C to about 160.degree. C in a molar ratio of about 1 molecule of urea for each primary amino group.

    Abstract translation: 一种含有用于塑料,密封剂,模具,泡沫和涂料的脲醛树脂的新型聚醚。 该新型组合物包含脲基封端的聚氧化烯和醛的缩合产物。 脲基封端的聚氧化烯化合物是通过使伯胺封端的聚氧化烯与尿素在大约120℃至大约160℃的温度下以每个伯氨基的约1分子尿素的摩尔比反应来制备的。

    Process for producing aqueous solution of polyureapolyamide
thermosetting resin
    8.
    发明授权
    Process for producing aqueous solution of polyureapolyamide thermosetting resin 失效
    生产聚脲酰胺热固性树脂水溶液的方法

    公开(公告)号:US4246153A

    公开(公告)日:1981-01-20

    申请号:US54441

    申请日:1979-07-03

    CPC classification number: C08G69/50 D21H19/62 Y10T428/31964

    Abstract: An aqueous solution of a thermosetting resin which improves water resistance and ink receptivity of coated paper and gives coated paper emitting little or almost no formaldehyde odor is produced by a process comprising the steps,(1) a reaction of urea with a polyalkylenepolyamine,(2) dehydration-condensation of the resulting reaction product with a dibasic carboxylic acid,(3) a reaction of the resulting reaction product with urea to produce a polyureapolyamide, and(4) a reaction of the polyureapolyamide with formaldehyde in an aqueous medium under acidic condition, or under alkaline condition and then under acidic condition.

    Abstract translation: 通过包括以下步骤的方法产生热塑性树脂的水溶液,其改善了涂布纸的耐水性和油墨接收性,并且给出了几乎不产生或几乎没有甲醛气味的涂布纸,其包括以下步骤:(1)尿素与聚亚烷基多胺的反应,(2 )所得反应产物与二元羧酸的脱水缩合,(3)所得反应产物与尿素的反应产生聚脲酰胺,和(4)在酸性条件下在水性介质中聚脲酰胺与甲醛的反应 ,或在碱性条件下,然后在酸性条件下。

    Soluble photosensitive resin composition
    9.
    发明授权
    Soluble photosensitive resin composition 失效
    可溶性光敏树脂组合物

    公开(公告)号:US4209581A

    公开(公告)日:1980-06-24

    申请号:US945341

    申请日:1978-09-25

    CPC classification number: G03F7/038 G03F7/032

    Abstract: A photocurable soluble resin suitable for manufacturing photosensitive resin plates obtained by polycondensing an alkylol derivative or an alkylated alkylol derivative of urea or thiourea with an N-alkylolacrylamide or N-alkylolmethacrylamide in the presence of an acid or an ammonium salt thereof or by reacting urea or thiourea with formaldehyde to form a linear polycondensation product and then grafting an N-alkylolacrylamide or N-alkylolmethacrylamide on the linear polycondensation product in the presence of an acid or an ammonium salt thereof. This soluble resin is incorporated with known soluble resins such as soluble nylon, photosensitizers and thermal polymerization inhibitors and mixed thoroughly to obtain a soluble photosensitive resin composition.

    Abstract translation: 适用于制造感光性树脂板的光固化性可溶性树脂,其通过在酸或其铵盐的存在下,使N-羟烷基丙烯酰胺或N-羟烷基甲基丙烯酰胺在其酸或其铵盐的存在下使羟烷基衍生物或脲或硫脲的烷基化羟烷基衍生物缩聚得到,或者使脲或 硫脲与甲醛形成线性缩聚产物,然后在酸或其铵盐的存在下将N-羟烷基丙烯酰胺或N-羟烷基甲基丙烯酰胺接枝在线性缩聚产物上。 该可溶性树脂与已知的可溶性树脂如可溶性尼龙,光敏剂和热聚合抑制剂混合并充分混合以获得可溶性光敏树脂组合物。

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