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:
Mar. 13, 2007
Filed:
Sep. 10, 2003
Kiyonari Hashidzume, Soma, JP;
Nobuaki Kido, Iwakuni, JP;
Shunichi Matsumura, Iwakuni, JP;
Teijin Limited, Osaka, JP;
Abstract
There is provided a film comprising a layered silicate cation-exchanged with an organic cation and a polyester or polycarbonate. The organic cation is represented by the following formula (I):(R)-L  (I)wherein R is a group represented by the following formula (I-1): wherein Ris a divalent hydrocarbon group having 5 to 20 carbon atoms, and Ris a divalent hydrocarbon group having 1 to 20 carbon atoms,an alkyl group, an aryl group or an aralkyl group, Lis an ammonium ion, a phosphonium ion or a hetero aromatic ion, and n is an integer of 1 to 4, with the proviso that when Lis an ammonium ion or a phosphonium ion, n is 4 and four Rs may be the same or different. This film has the layered silicate highly dispersed therein and is excellent in various properties such as mechanical properties and dimensional stability.