Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-04-15
1992-09-29
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526 82, 526173, 526335, 526340, 5263402, 526284, C08F 238
Patent
active
051514753
ABSTRACT:
This is an improvement upon a process which comprises anionically polymerizing monomers with an anionic polymerization initiator in a suitable solvent thereby creating a living polymer. The improvement comprises terminating the polymerization by the addition of a terminating agent selected from the group consisting of boranes, ammonia, halogens, hydrocarbons containing a C-H group where the carbon is connected directly to a triply-bound carbon or to two doubly-bound carbons and silanes.
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Brownscombe Thomas F.
Chamberlain Linda R.
Gibler Carma J.
Stevens Craig A.
Haas Donald F.
Shell Oil Company
Teskin Fred
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