Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.
申请公布号
US5322731(A)
申请公布日期
1994.06.21
申请号
US19930028338
申请日期
1993.03.09
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
CALLAHAN, JR., JOSEPH P.;ENANOZA, RUDYARD M.;WEIGEL, MARK D.
