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    • 4. 发明授权
    • End-modified styrene-diene block copolymer prepared using polyfunctional coupling agent
    • 使用多官能偶联剂制备的末端改性苯乙烯 - 二烯嵌段共聚物
    • US06777493B2
    • 2004-08-17
    • US10283160
    • 2002-10-30
    • Young Hoon KoSun Woo Cheen
    • Young Hoon KoSun Woo Cheen
    • C08L8304
    • C08G77/442C08F8/42
    • A radial end-modified styrene-conjugated diene block copolymer having a general formula 1. The copolymer is obtained by synthesizing a styrene-conjugated diene block copolymer by way of copolymerization using an organic lithium initiator in the presence of a nonpolar solvent and then coupling the anionic active end of the resulting copolymer with a polyfunctional polysiloxane: (PS-PD)3Si—CH2CH2—[SiO(CH3)2—]nSi(CH3)2R  Formula 1 wherein, PS is polystyrene, PD is polydiene such as polyisoprene or polyisoprene-polybutadiene, R is hydroxy group or -(PD-PS), and n is an integer of 1 to 100. The block copolymer based adhesives have low melt viscosity and excellent adhesive strength.
    • 具有通式1的径向末端改性苯乙烯 - 共轭二烯嵌段共聚物。该共聚物通过在非极性溶剂的存在下使用有机锂引发剂通过共聚合合苯乙烯 - 共轭二烯嵌段共聚物,然后将 所得共聚物的阴离子活性末端与多官能聚硅氧烷:其中PS为聚苯乙烯,PD为聚二烯如聚异戊二烯或聚异戊二烯 - 聚丁二烯,R为羟基或 - (PD-PS),n为1至100的整数 基于嵌段共聚物的粘合剂具有低熔体粘度和优异的粘合强度。