Patent ID: 11911951
Assignee: NAN YA PLASTICS CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A matte film for hot pressing, comprising:
a substrate layer; and
at least one surface layer formed on at least one surface of the substrate layer;
wherein the substrate layer and the at least one surface layer are formed from at least one polyester composition, and the at least one polyester composition includes:
81% to 97.9497% by weight of a polyester resin having an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g;
0.02% to 2% by weight of an antioxidative ingredient;
0.0003% to 1% by weight of a nucleating agent;
0.01% to 2% by weight of a flow aid;
0.01% to 2% by weight of a polyester modifier; and
0.01% to 2% by weight of an inorganic filler;

wherein the polyester modifier has a structure represented by formula (I), (II) or (III):, wherein in formula (I), X represents an aliphatic carbon chain or an aromatic carbon chain containing 1 to 5 carbon atoms, and R1 to R4 each represent a hydrogen atom or an aliphatic carbon chain containing 1 to 15 carbon atoms; in formula (II), X1 and X2 each represent an aliphatic carbon chain or an aromatic carbon chain containing 1 to 5 carbon atoms, and R1 to R6 each represent a hydrogen atom or an aliphatic carbon chain containing 1 to 15 carbon atoms; in formula (III), X1 to X3 each represent an aliphatic carbon chain or an aromatic carbon chain containing 1 to 5 carbon atoms, R1 to R8 each represent a hydrogen atom or an aliphatic carbon chain containing 1 to 15 carbon atoms, and n is a positive integer of 1 or more.