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:
Oct. 18, 2011
Filed:
Dec. 20, 2007
Stefan Bade, Michelbach le Haut, FR;
Beate Seliger, Hamburg, DE;
Norbert Schladerbeck, Kelkheim, DE;
Joerg Sauer, Duelmen, DE;
Stefan Bade, Michelbach le Haut, FR;
Beate Seliger, Hamburg, DE;
Norbert Schladerbeck, Kelkheim, DE;
Joerg Sauer, Duelmen, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The present invention relates to a process for preparing glycidyloxy-alkylalkoxysilanes of the general formula (I) (R″)O—CHSi(R')(OR)(I) in which R and R′ groups are each independently linear or branched alkyl groups having from 1 to 4 carbon atoms, n is 1, 2, 3, 4, 5, 6, 7 or 8 and m is 0, 1, 2 or 3, and R″ is an HC(O)CH— or HC(O)CHCH— group, by reacting (i) a functionalized alkene of the general formula (II) (R″)O—CH(II) in which R″ is an HC(O)CH— or HC(O)CHCH— group and n is 1, 2, 3, 4, 5, 6, 7 or 8 with (ii) at least one hydroalkoxy-silane of the general formula (III) HSi(R′)(OR)(III) in which R and R′ groups are each independently linear or branched alkyl groups having from 1 to 4 carbon atoms and m is 0, 1, 2 or 3, in the presence (iii) of at least one homogeneous catalyst, (iv) of at least one solvent and/or of a diluent and (v) of at least one promoter.