公开(公告)号：US3635932A

公开(公告)日：1972-01-18

申请号：US3635932D

申请日：1969-05-01

申请人： FIRESTONE TIRE & RUBBER CO

发明人： KECKLER NORMAN F

IPC分类号： C08C2/06 ,  C08D3/08 ,  C08D5/00

CPC分类号： C08C2/06

摘要： THE INVENTION RELATES TO POLYMERS, BOTH (1) HOMOPOLYMERS OF HYDROCARBON CONJUGATED-DIENT MONOMERS OF 4 AND 5 CARBON ATOMS AND (2) COPOLYMERS OF SAID MONOMERS WITH ALIPHATIC OR ARYL OLEFINIC MONOMERS PRODUCED BY SOLUTION POLYMERIZATION USING A LITHIUM-CONTAINING CATALYST, WITH PRODUCTION OF MICROGEL. THE MICROGEL IS SEPARATED BY CENTRIFUGING A SOLUTION OF THE POLYMER PRODUCT IN A SOLVENT OF DIFFERENT DENSITY FROM THE MICROGEL.

公开(公告)号：US3558575A

公开(公告)日：1971-01-26

申请号：US3558575D

申请日：1970-01-05

申请人： FIRESTONE TIRE & RUBBER CO

发明人： KECKLER NORMAN F

IPC分类号： C08F236/10 ,  C08F19/08

CPC分类号： C08F236/10 ,  C08F4/48

摘要： BUTADIENE AND STYRENE ARE COPOLYMERIZED TO PRODUCE A RUBBER USING HYDROCARBON LITHIUM CATALYST WITH A LOW PERCENTAGE CONTENT OF BLOCK STYRENE BY CARRYING OUT THE REACTION AT AN ELEVATED TEMPERATURE AND ADDING THE MONOMERS TO THE REACTION MIXTURE AT SUCH A RATE THAT THERE IS A SUBSTANTIAL RISE IN THE TEMPERATURE ADIABATICALLY DUE TO THE HEAT OF THE REACTION.

公开(公告)号：US3629223A

公开(公告)日：1971-12-21

申请号：US3629223D

申请日：1969-09-29

申请人： FIRESTONE TIRE & RUBBER CO

发明人： KECKLER NORMAN F

IPC分类号： C08F136/06 ,  C08D3/06 ,  C08D3/08 ,  C08F3/16

CPC分类号： C08F136/06 ,  C08F4/48

摘要： 1,3-BUTADIENE WHICH CONTAINS AT LEAST 400 P.P.M. OF 1,2-BUTADIENE (OR ITS EQUIVALENT IN ALPHA-ACETYLENES, CARBONYLS OR PROPADIENCE) IS POLYMERIZED AT A TEMPERATURE OF 315*F. OR HIGHER WITH A LITHIUM CATALYST.