Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Reexamination Certificate
2006-05-09
2006-05-09
Levy, Neil S. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
C424S078090, C424S078310, C424S078370, C424S411000, C514S721000, C523S122000
Reexamination Certificate
active
07041307
ABSTRACT:
Concentrates of various classical biocides in a polyester carrier resin when incorporated into a substrate resin, preferably a polyolefin such as polypropylene or polyethylene, provide the substrate polymer which biocidal activity with superior resistance to discoloration (yellowing) than when the biocide is directly incorporated into the substrate polymer as a powder at the same total concentration.
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Ciba Specialty Chemicals Corporation
Levy Neil S.
Stevenson Tyler A.
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