公开(公告)号：US20190211233A1

公开(公告)日：2019-07-11

申请号：US16099313

申请日：2017-04-28

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Pierre R. Bieber ,  Petra M. Stegmaier ,  Niklas M. Matzeit ,  Janina R. Overbeck ,  Siegfried R. Goeb ,  Joern Buettner ,  Claudia Parys ,  Eike H. Klünker ,  Andrew Satrijo ,  Nelson Goncalves Pimentel ,  Christiane Strerath

IPC分类号： C09J7/38 ,  C09J153/02

CPC分类号： C09J7/383 ,  C08L23/22 ,  C08L53/02 ,  C08L71/12 ,  C08L91/00 ,  C08L2205/02 ,  C09J153/02 ,  C09J153/025 ,  C09J2205/11 ,  C09J2205/31

摘要： The present disclosure relates to a pressure sensitive adhesive comprising: a) a multi-arm block copolymer of the formula Qn-Y, wherein: (i) Q represents an arm of the multi-arm block copolymer and each arm independently has the formula G-R, (ii) n represents the number of arms and is a whole number of at least 3, and (iii) Y is the residue of a multifunctional coupling agent, wherein each R is a rubbery block comprising a polymerized conjugated diene, a hydrogenated derivative of a polymerized conjugated diene, or combinations thereof; and each G is a glassy block comprising a polymerized monovinyl aromatic monomer; b) a polymeric plasticizer having a weight average molecular weight Mw comprised between 10.000 and 100.000 g/mol; c) at least one hydrocarbon tackifier which is primarily compatible with the rubbery blocks; d) a glassy block compatible aromatic resin having a softening point value (RBSP) of at least 150 C, when measured by the ring and ball test method described in the experimental section; and e) optionally, a linear block copolymer of the formula L-(G)m, wherein L is a rubbery block comprising a polymerized olefin, a polymerized conjugated diene, a hydrogenated derivative of a polymerized conjugated diene, or any combinations thereof; and wherein m is 1 or 2. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive and uses thereof.