Addition of coupling agent during organolithium initiated polyme

Details Addition of coupling agent during organolithium initiated polyme Addition of coupling agent during organolithium initiated polyme

1977-01-26

1979-03-20

Henderson, C. A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526176, 526180, 526181, 526335, 526340, 526919, C08F 408, C08F 416, C08F 3606, C08F 3608

Patent

active

041454987

ABSTRACT:
Continuous or incremental addition of a coupling agent, such as silicon tetrachloride, during the polymerization step of organolithium initiated polymerization processes results in polymers of improved processability, as well as other improved properties such as high green strength, low die swell, and minimal shrinkage on extrusion.

REFERENCES:
patent: 3595941 (1971-07-01), Farrar
patent: 3624057 (1971-11-01), Farrar
patent: 3651025 (1972-03-01), Bean, Jr.
patent: 3652516 (1972-03-01), Farrar
patent: 3776893 (1973-12-01), Naylor

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