Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-05-30
2006-05-30
Cheung, William K. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S230500, C526S264000, C526S910000, C526S911000, C558S264000, C568S566000, C568S568000, C568S570000, C568S571000
Reexamination Certificate
active
07053161
ABSTRACT:
A process for producing organic peroxide initiators useful in the polymerization of ethylenically unsaturated monomers. The process for making the organic peroxides includes forming an aqueous emulsion of the organic peroxide. The organic peroxide is dispersed as small droplets of from 1 to 10 microns in size in the aqueous emulsion. The organic peroxide may be added to a polymerization reactor containing an ethylenically unsaturated monomer. The organic peroxide functions as a free radical initiator to polymerize the monomer. The organic peroxide may be substantially free of organic solvents and plasticizers. The resulting polymers are of high quality.
REFERENCES:
patent: 6258906 (2001-07-01), Bodart
patent: 6433208 (2002-08-01), Cozens
patent: 6770719 (2004-08-01), Cozens
Cozens Ross J.
Glock, Jr. M. Fredrick V.
Wang Qi
Zust Daniel A.
Cheung William K.
Derrington Keith R.
Fuerle Richard D.
Oxy Vinyls, L.P.
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