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. 18, 2005
Filed:
Aug. 23, 2001
Helmut Hartl, Berlin, DE;
Rainer B. Frings, Berlin, DE;
Gerwald F. Grahe, Berlin, DE;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
The invention relates to: 4-methylene-1,3-dioxolanes of the general formula (I)wherein R1 denotes hydrogen, C-C-cycloalkyl or C-C-alkyl; m and n, which may be the same or different, denote 0 or 1, whereby m≦n, o denotes 2, 3 or 4 depending on the valency of the group X; and X denotes a C—C single bond, straight-chain or branched C-C-alkylene, C-C-cycloalkylene, C-C-arylalkylene, —CH(OCHCH)OCH—, —CH(OCH(CH)CH)OCH—, wherein p is an integer from 0 to 100; a process for their production; and intermediate products used. Moreover, compositions capable of emission-free, photocationic cross-linking, which comprise 4-methylene-1,3-dioxolanes of the general formula (I) and their use for the production of solvent-resistant and transparent films.