公开(公告)号：US3801500A

公开(公告)日：1974-04-02

申请号：US3801500D

申请日：1971-09-13

申请人： FIRESTONE TIRE & RUBBER CO

发明人： WEBB F ,  TATE D

IPC分类号： C02F1/54 ,  C08C19/22 ,  C08C19/32 ,  C08D5/04 ,  C08F27/08

CPC分类号： C08C19/22 ,  C02F1/54 ,  C08C19/32

摘要： THIS INVENTION COMPRISES WATER-SOLUBLE POLYMERS FROM POLYDIENES HAVING A SUBSTANTIAL AMOUNT OF REPEATING UNITS WITH PENDENT VINYL GROUPS, SUCH AS HIGH-VINYL POLYBUTADIENE, AND THE PROCESS FOR PREPARING SUCH WATER-SOLUBLE POLYMERS. THE PROCESS INVOLVES THE ANTI-MARKOWNIKOFF ADDITION OF HYDROGEN BROMIDE TO THE PENDENT VINYL GROUPS TO GIVE THE PRIMARY BROMIDE DERIVATIVE GROUPS, WHICH UPON THE ADDITION OF A TERTIARY AMINE, GIVE QUATERNARY AMMONIUM GROUPS WHICH IMPART WATER SOLUBILITY TO THE POLYMERS. THESE PRODUCTS ARE PARTICULARLY USEFUL FOR THE FLOCCULATION OF SOLIDS FROM SUSPENSIONS THEREOF, SUCH AS ELUTRIATED SEWAGE.