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    • 4. 发明授权
    • Emulsion styrene-butadiene rubber
    • 乳液丁苯橡胶
    • US06469104B1
    • 2002-10-22
    • US09264937
    • 1999-03-09
    • Howard Allen ColvinMichael Leslie Senyek
    • Howard Allen ColvinMichael Leslie Senyek
    • C08L2502
    • C08L9/06B29L2030/002B60C1/0016C08F236/10Y02T10/862Y10T152/10495C08F2/22C08L2666/08C08F2/38
    • This invention discloses an emulsion styrene-butadiene rubber (SBR) that can be employed in manufacturing tire tread formulations that have rolling resistance and treadwear characteristics that are similar to those made with solution SBR but with improved traction characteristics. Thus, the emulsion SBR of this invention is superior in many respects for use in tire tread compounds to conventional solution SBR and conventional emulsion SBR. This invention more specifically discloses a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein the styrene-butadiene rubber composition has a number average molecular weight as determined by thermal field flow fractionation which is within the range of about 50,000 to 150,000, and wherein the styrene-butadiene rubber has a light scattering to refractive index ratio which is within the range of 1.8 to 3.9. The subject invention further reveals a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein a plot of log frequency versus storage modulus of the styrene-butadiene rubber composition crosses over a plot of log frequency versus loss modulus of the styrene-butadiene rubber composition at a log frequency within the range of 0.001 radians per second to 100 radians per second when conducted at 120° C. using parallel plate geometry in the dynamic oscillation frequency sweep of the styrene-butadiene rubber.
    • 本发明公开了一种乳液丁苯橡胶(SBR),其可用于制造具有滚动阻力和胎面特性的轮胎胎面配方,其类似于用溶液SBR制成但具有改进的牵引特性的轮胎胎面制剂。 因此,本发明的乳液SBR在许多方面在用于轮胎胎面胶料与常规溶液SBR和常规乳液SBR方面是优异的。 本发明更具体地公开了一种苯乙烯 - 丁二烯橡胶组合物,其由衍生自苯乙烯和1,3-丁二烯的重复单元组成,其中所述苯乙烯 - 丁二烯橡胶组合物具有通过热场流分馏确定的数均分子量, 在约50,000至150,000的范围内,并且其中所述苯乙烯 - 丁二烯橡胶的光散射与折射率之比在1.8至3.9的范围内。 本发明进一步揭示了苯乙烯 - 丁二烯橡胶组合物,其由衍生自苯乙烯和1,3-丁二烯的重复单元组成,其中苯乙烯 - 丁二烯橡胶组合物的对数频率对储能模量的曲线与 苯乙烯 - 丁二烯橡胶组合物的对数频率与损耗模量的对数频率在0.001弧度/秒至100弧度/秒的范围内,当在120℃下进行时,使用平行板几何形状在苯乙烯 - 丁二烯橡胶。
    • 6. 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。