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:
Jul. 19, 2011
Filed:
Oct. 03, 2006
Tomoyuki Suzuki, Tokyo, JP;
Takanobu Noguchi, Ibaraki, JP;
Tomoyuki Suzuki, Tokyo, JP;
Takanobu Noguchi, Ibaraki, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A copolymer comprising a repeating unit of the following formula (1) and a repeating unit of the following formula (2): (wherein, a ring A and ring B represent each independently an aromatic ring optionally having a substituent. X is —O—, —S—, —S(═O)—, —S(═O)—, —Si(R)—Si(R)—, —Si(R)—, —B(R)—, —P(R)—, —P(═O)(R)—, —O—C(R)— or —N═C(R)—, and Rrepresents a substituent. When there are two or more Rs in the same formula, they may be the same or different.) (wherein, Y is —O—, —S— or —C(═O)—. Arrepresents an aryl group optionally having a substituent or a monovalent heterocyclic group optionally having a substituent, and there is no substituent connected to atoms of the ring of Ar, the atoms being adjacent an atom of Arconnected to a nitrogen atom in the formula. Rrepresents a substituent, and n represents an integer of from 0 to 3. When there are two or more Rs in the formula, they may be the same or different.).