Porous polyester film
OwnerChang-Ho Suh, Ki-Bong Suh +1inventors
InventorsChang-Ho Suh, Ki-Bong Suh, Sang-Pil Kim
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Abstract
Disclosed is a biaxially stretched polyester film which can be used in a wide range of industrial applications such as printing, imaging, advertising and display. The polyester film has a three-layered structure (A/B/C) comprising: (A) a photic layer of a polyester resin having a 60 degree gloss of 100% or more; (B) a layer containing 3 to 30% by weight of a thermoplastic resin incompatible with the polyester resin, 30% by weight of inorganic particles and 0.5% by weight of a fluorescent whitening agent; and (C) an aphotic layer of a polyester resin having a 60 degree gloss of 50% or less, and a coating layer applied on at least one surface of the film.
Claims9
A porous polyester film having a three-layered structure (A/B/C) comprising:
- (A) a glossy layer of a polyester resin having a 60 degree gloss of 100% or more;
- (B) a layer containing 3 to 30% by weight of a thermoplastic resin incompatible with the polyester resin, below 30% by weight of inorganic particles and below 0.5% by weight of a fluorescent whitening agent;
- and (C) a matte layer of a polyester resin having a 60 degree gloss of 50% or less, and a coating layer applied on at least one surface of the film to provide easy printability, antistatic property and releasability.
Dependencies are inferred from the claim text.