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    • 5. 发明授权
    • Thermoreversible thickening binder composition
    • 热可膨胀增稠粘合剂组合物
    • US06271300B1
    • 2001-08-07
    • US08602790
    • 1996-03-07
    • Tatsuya OhsumiToshihiro Kanzawa
    • Tatsuya OhsumiToshihiro Kanzawa
    • C08L2502
    • D21H19/58B41M5/132B41M5/337B41M5/3372C08L33/00C09D125/08D21H19/36C08L2666/04
    • A thermoreversibly thickening binder composition, comprises a resin latex wherein the amount of an emulsifier in the aqueous phase is smaller than 0.01 mmol/g, and a vinyl polymer having reversibility of hydrophilicity and hydrophobicity at a certain transition temperature. The resin latex is preferably prepared by using an emulsifier having a radically polymerizable group, and preferable as said vinyl polymer is a polymer having a cation-forming group. The binder composition exhibits an excellent chemical stability to factors other than heat without causing migration of the latex resin particles onto the surface of the coated layer even during the time of heat-drying, and thermoreversible thickening effects caused by a sharp heat-sensitive gelling properties. When applied to preparation of coated paper and pressure-sensitive recording sheet, the binder composition provides products excellent in gloss, printability and color producing properties.
    • 热可逆增稠的粘合剂组合物包含其中水相中的乳化剂的量小于0.01mmol / g的树脂胶乳和在一定转变温度下具有亲水性和疏水性的可逆性的乙烯基聚合物。 树脂胶乳优选通过使用具有自由基聚合性基团的乳化剂来制备,优选所述乙烯基聚合物是具有阳离子形成基团的聚合物。 粘合剂组合物即使在加热干燥期间也表现出对除热以外的因素的优异的化学稳定性,而不会引起胶乳树脂颗粒在涂层的表面上的迁移,并且由热敏胶凝性能引起的热可逆增稠效果 。 当用于涂布纸和压敏记录纸的制备时,粘合剂组合物提供了光泽,可印刷性和着色性能优异的产品。