Radical polymerization processes for preparing halogenated...

Details Radical polymerization processes for preparing halogenated... Radical polymerization processes for preparing halogenated...

2007-04-24

2007-04-24

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S086000, C526S087000, C526S108000, C526S109000, C526S135000, C526S191000, C526S219300, C526S227000, C525S239000, C525S267000, C525S273000, C525S318000

Reexamination Certificate

active

11431836

ABSTRACT:
Radical polymerization process for the preparation of halogenated polymers employing one or more ethylenically unsaturated monomers, at least one of which is chosen from halogenated monomers, molecular iodine and one or more radical-generating agents chosen from diazo compounds, peroxides and dialkyl diphenylalkanes Radical polymerization process for the preparation, starting from the halogenated polymers prepared by the process as described above, of block copolymers, at least one block of which is a halogenated polymer block. Halogenated polymers which have a number-average molecular mass Mn of greater than 1.0×104and an Mz/Mw ratio of less than 1.65. Block copolymers, at least one block of which is a block of halogenated polymer identical to the halogenated polymers described above. Block copolymers comprising at least one halogenated polymer block which have a number-average molecular mass Mn of greater than 1.5×104and a polydispersity index Mw/Mn of less than 1.60.

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