Phenolic compounds as chain-terminators for the anionic solution

Details Phenolic compounds as chain-terminators for the anionic solution Phenolic compounds as chain-terminators for the anionic solution

1990-08-21

1991-10-22

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, 526335, 526340, 524330, 524331, 524333, C08F 238

Patent

active

050596616

ABSTRACT:
Compounds of formula I ##STR1## wherein n is 0 to 3, R.sub.1 and R.sub.2 are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or --CH.sub.2 SR.sub.3, R.sub.3 is C.sub.1 -C.sub.18 alkyl, phenyl or benzyl, and R.sub.4 is hydrogen or CH.sub.3, are admirably suitable as chain-terminators in the anionic solution polymerisation of 1,3-dienes.

REFERENCES:
patent: 3110706 (1963-11-01), Vollmert et al.
patent: 3458491 (1969-07-01), Dennis
patent: 3903173 (1975-09-01), Eggensperger et al.
patent: 4377666 (1983-03-01), Farrar
patent: 4707300 (1987-11-01), Sturm et al.
patent: 4965326 (1990-10-01), Horpel et al.

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