C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/104, 6/142,
C08J 3/24 (2006.01) C08J 3/20 (2006.01) C08J 3/205 (2006.01) C08J 3/22 (2006.01) C08K 5/14 (2006.01)
Patent
CA 1158391
ABSTRACT OF THE DISCLOSURE A process for the preparation of an organic peroxide master batch comprising about 20 - 60% by weight of an organic peroxide and about 40 - 80% by weight of a polymer capable of being. cross-linked by the peroxide, is disclosed. The process comprises contacting particles of such a polymer having a diameter from about 200 microns to about 20 millimeters, at a temperature from about 15°C to about 95°C, with a liquid medium which is not a physically stable emulsion and which comprises from about 2 to about 100 percent, by weight, of a peroxide which is a liquid at said temperature and from about 0 to about 98 percent, by weight, of a suitable liquid in which the peroxide and the polymer are insoluble, for a period of time sufficient to incorporate from about 20 to about 60 percent of peroxide in the polymer particles. based on the total weight of the polymer particles containing the peroxide, said medium being present in such an amount that after the incorporation of the peroxide essentially all of the polymer particles are completely surrounded by the liquid medium.
366738
Drost Gerrit F.
Torenbeek Reinder
Van Drumpt Jan D.
Akzona Incorporated
Swabey Ogilvy Renault
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