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:
Oct. 21, 1997
Filed:
Oct. 03, 1995
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Nippon Magphane Co. Ltd., Tokyo, JP;
Abstract
A polyester film containing organic particles comprising a matrix polymer and fine polymer particles is provided. The fine particles are interpenetrating network type cross-linked fine polymer particles, each particle containing, in its cross-linked polymer network, a hydrophilic polymer in an amount of 1 to 40% by weight which is not substantially bonded to the cross-linked polymer chemically. The cross-linked polymer is a vinyl type polymer or a siloxane type polymer comprising as its main components a polymerizable monomer and at least one cross-linking monomer contained in an amount of 5% by weight or more based on the total weight of the monomers. The interpenetrating network type cross-linked fine polymer particles have an average particle size in the range of 0.01 to 5 .mu.m and are contained in the film in an amount of 0.001 to 5.0% by weight.