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US 2007/0184262 A1Published application
Laminated polyester film and manufacturing process thereof
AssigneeTeijin Dupont Films Japan Limited
InventorsShinji Yano, Atsushi Oyamatsu
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Abstract
A laminated polyester film comprising a coating layer formed on at least one side of a polyester film, this coating layer comprising a polymer binder and inorganic-organic composite particles having an average particle diameter of 200 to 2,000 nm. This film has excellent scratch resistance, adhesion, transparency and slipperiness and is useful as an adhesive film for optical use.
Claims7
A laminated polyester film comprising:
- (A) a polyester film;
- and
- (B) a coating layer formed on at least one side of the polyester film (A) and made of a coating composition comprising a polymer binder and inorganic-organic composite particles having an average particle diameter of 200 to 2,000 nm.
A process of manufacturing a laminated polyester film, comprising the steps of:
- applying an aqueous coating solution comprising a polymer binder and inorganic-organic composite particles having an average particle diameter of 200 to 2,000 nm to at least one side of a polyester film before the completion of crystal orientation of the polyester film;
- and
- stretching the coated film in at least one direction and heat setting it to form a coating layer on at least one side of the stretched polyester film.
Dependencies are inferred from the claim text.