The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2006
Filed:
Apr. 11, 2001
Kari Rissanen, Hankasalmi, FI;
Miikka Pakkala, Kuopio, FI;
Salme Koskimies, Helsinki, FI;
Sami Nummelin, Jyväskylä, FI;
Kari Rissanen, Hankasalmi, FI;
Miikka Pakkala, Kuopio, FI;
Salme Koskimies, Helsinki, FI;
Sami Nummelin, Jyväskylä, FI;
Valtion Teknillinen Tutkimuskeskus, Espoo, FI;
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 C–Calkyl or alkenyl succinic anhydride is reacted with an oligoamine having two or more primary amino groups to obtain the corresponding oligo/polysuccinimide.