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:
Feb. 28, 2006
Filed:
Jul. 24, 2000
Andrew B. Holmes, Cambridge, GB;
Florence D. Geneste, Noyal sur Vilaine, FR;
Rainer E. Martin, Grenzach/Wyhlen, DE;
Franco Cacialli, Cambridge, GB;
Andrew B. Holmes, Cambridge, GB;
Florence D. Geneste, Noyal sur Vilaine, FR;
Rainer E. Martin, Grenzach/Wyhlen, DE;
Franco Cacialli, Cambridge, GB;
Cambridge Display Technology Limited, Cambridge, GB;
Abstract
A method for making a polymer or oligomer comprising the steps of making a first monomer comprising a substituted aromatic or heteroaromatic group by providing an aromatic or heteroaromatic group substituted with first and second director groups, performing metalisation at a first position on the aromatic or heteroaromatic group, performing electrophilic substitution so as to provide a first substituent group at the first position, and contacting in a reaction mixture the first monomer with at least two further monomers that independently are the same or different from the first monomer under conditions so as to form a polymer or oligomer, wherein the nature and positions of the first and second director groups regioselect the first position.