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    • 4. 发明申请
    • STYRENIC BLOCK COPOLYMERS AND COMPOSITIONS CONTAINING THE SAME
    • 苯乙烯嵌段共聚物及其组合物
    • WO2009032502A1
    • 2009-03-12
    • PCT/US2008/073150
    • 2008-08-14
    • KRATON POLYMERS US LLCHANDLIN, Dale, L., Jr.WILLIS, Carl, L.BENING, Robert, C.
    • HANDLIN, Dale, L., Jr.WILLIS, Carl, L.BENING, Robert, C.
    • C08L23/02C08L25/08
    • C08L23/02C08F297/04C08F297/044C08L23/04C08L23/10C08L53/02C08L53/025C08L2666/02C08L2666/04C08L2666/24C09D153/02C09D153/025C09J153/02C09J153/025
    • A block copolymer of the formula [S-I- (I/B) ] n X or [S- I- (I/B) -/B] n X or mixtures thereof wherein each S is independently a polymer block of an alkenyl arene; each I is a polymer block of isoprene; each B is a polymer block of butadiene and each (I/B) is a mixed random polymer block of isoprene and butadiene in a weight ratio I:B of from about 10:90 to about 90:10, n is an integer equal to or greater than 2, X is the residue of a coupling agent, and wherein the alkenyl arene content of the block copolymer represents a weight ratio of the alkenyl arene block to conjugated diene block of the total block copolymer and is in the range of from about 15 to about 35 wt%. Compositions for the manufacture of transparent, gel-free films, adhesives, fibers, injection molded articles, dipped goods, oil gels, and bitumen are also disclosed and comprise from about 3 to about 90 wt % of the claimed block copolymer and one or more components selected from thermoplastic resins, polyolefins, tackifying resins, end block resins, polystyrene, oils, engineering thermoplastics, fillers, and antioxidants.
    • 式[S-I-(I / B)] nX或[S- I-(I / B) - / B] nX的嵌段共聚物或其混合物,其中每个S独立地为烯基芳烃的聚合物嵌段; 每个I是异戊二烯的聚合物嵌段; 每个B是丁二烯的聚合物嵌段,并且每个(I / B)是异戊二烯和丁二烯的混合无规聚合物嵌段,重量比I:B为约10:90至约90:10,n为等于 或大于2,X是偶联剂的残基,并且其中嵌段共聚物的链烯基芳烃含量表示全部嵌段共聚物中链烯基芳烃嵌段与共轭二烯嵌段的重量比,其范围为约 15至约35重量%。 还公开了用于制造透明,无胶膜,粘合剂,纤维,注射成型制品,浸渍物料,油凝胶和沥青的组合物,其包含约3至约90重量%的所要求保护的嵌段共聚物和一种或多种 选自热塑性树脂,聚烯烃,增粘树脂,端嵌段树脂,聚苯乙烯,油,工程热塑性塑料,填料和抗氧化剂的组分。