Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-01-10
2006-01-10
Solola, Taofiq (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S546000
Reexamination Certificate
active
06984658
ABSTRACT:
The invention is directed to oligo/polysuccinimides prepared from alkyl or alkenyl succinic anhydride, containing two or more imide groups, a method for producing such oligo-polysuccinimides, and the use thereof as dispersing agents in lubricant products, plasticizers in plastics, surface sizes for paper industry, reactive additives, for coating and composite applications, as well as encapsulating agents in pharmaceutical and speciality chemical products. In the method, a linear or branched C4–C24alkyl or alkenyl succinic anhydride is reacted with an oligoamine having two or more primary amino groups to obtain the corresponding oligo/polysuccinimide.
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Koskimies Salme
Nummelin Sami
Pakkala Miikka
Rissanen Kari
Solola Taofiq
Valtion Teknillinen Tutkimuskeskus
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