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. 08, 2008
Filed:
Mar. 24, 2003
Koki Ikeda, Chiyoda-ku, JP;
Toshimasa Tokuda, Chiyoda-ku, JP;
Yoshimasa Okamoto, Chiyoda-ku, JP;
Masato Ando, Chiyoda-ku, JP;
Koki Ikeda, Chiyoda-ku, JP;
Toshimasa Tokuda, Chiyoda-ku, JP;
Yoshimasa Okamoto, Chiyoda-ku, JP;
Masato Ando, Chiyoda-ku, JP;
Teijin Chemicals, Tokyo, JP;
Abstract
An object of the present invention is to provide a polycarbonate copolymer having excellent heat resistance and dimensional stability and heat resistant parts comprising the copolymer and suitable for use in various applications. The present invention is a polycarbonate copolymer comprising 5 to 95 mol % of recurring unit (component a) represented by the following general formula (I): and 95 to 5 mol % of recurring unit (component b) represented by the following general formula (II): (wherein Rto Rare each independently a hydrogen atom, a hydrocarbon group which may contain an aromatic group having 1 to 9 carbon atoms or a halogen atom, and W is a single bond, a hydrocarbon group which may contain an aromatic group having 1 to 20 carbon atoms or an O, SO, SO, CO or COO group), and various heat resistant parts comprising the copolymer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile