Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-04-26
2005-04-26
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S327800, C525S369000, C528S500000
Reexamination Certificate
active
06884851
ABSTRACT:
Process for producing polyolefins, comprising the following steps:a) grafting of acid groups onto polyolefins by means of a graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride, optionally in the presence of another graftable monomer bearing a vinyl unsaturated group and, optionally, one or more aromatic rings;b) purification, consisting in removing at least some of the graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride that has not reacted with the polyolefins;c) neutralization of the acid groups by at least one neutralizing agent.Polyolefin obtained.
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Asinovsky Olga
Seidleck James J.
Solvay ( Societe Anonyme)
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