Process for preparation of chlorinated and chlorosulfonated olef

Details Process for preparation of chlorinated and chlorosulfonated olef Process for preparation of chlorinated and chlorosulfonated olef

1994-06-15

1996-08-06

Jordan, Charles T.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2328, C08L 2334

Patent

active

H00015822

ABSTRACT:
Non-discolored chlorinated and chlorosulfonated olefin polymers having low levels of residual solvent are prepared in a process wherein monofluorobenzene is used as a reaction medium and isolation of the polymer is by means of a series of vented closed loop extruders. The process also results in suppression of the formation of monochloromonofluorobenzene as a by-product.

REFERENCES:
patent: 4544709 (1985-10-01), Narui et al.
patent: 4663396 (1987-05-01), Nakagawa et al.
patent: 5214107 (1993-05-01), Brugel
Edward G. Brugel, "Process for Isolation of Low Molecular Weight Chlorinated and Chlorosulfonated Resins", U.S. Patent Appln. Ser. No. 07/979,109, filed Nov. 20, 1992 (Docket No. AD-6077).

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