Acryl film
AssigneeHyosung Chemical Corporation
InventorsYoung Soo KIM, Kyung Soo KIM, Ho Jun LEE, Hyun Woo CHOI, Hyeok Mo KANG, Hyun Suk CHUNG, Bong Choon KIM, Jong Hyuk EUN
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Abstract
The present disclosure is an acryl film formed from a main dope solution including an acryl resin shown in the following formula 1 and CSR particles, and peel strength measured in peeling speed of 0.5 mpm is 20 gf/2 inch or less, tear strength is 6 gf or more, has excellent peel strength, thereby visual stain by thickness unevenness is improved, and having excellent tear strength and good brittleness. a and b are an integer and 1 or more. MMA-BMA wherein, MMA is methyl methacrylate unit and BMA is butyl methacrylate unit.
Claims5
An acryl film formed in solvent casting method from a main dope solution comprising an acryl resin shown in the following formula 1 and a core shell rubber (CSR) particle,
- wherein the acryl resin comprises, with respect to 100 parts by weight of the acryl resin, methyl methacrylate unit of 70 to 98 parts by weight and butyl methacrylate unit of 2 to 30 parts by weight,
- wherein peel strength measured in peeling speed of 0.5 mpm is 20 gf/2 inch or less and tear strength is 6 gf or more.
- a and b are an integer and 1 or more.
- MMA-BMA
- wherein, MMA is methyl methacrylate unit and BMA is butyl methacrylate unit.
A method of manufacturing an acryl film comprising a step stretching the acryl film formed in solvent casting method from a main dope solution comprising an acryl resin shown in the following formula 1 and a core shell rubber,
- wherein the acryl resin comprises, with respect to 100 parts by weight of the acryl resin, methyl methacrylate unit of 70 to 98 parts by weight and butyl methacrylate unit of 2 to 30 parts by weight,
- wherein the step comprises a step stretching the acryl film to a stretching ratio of 120% to 140%, at a stretching temperature of 100° C. to 200° C. and at a stretching speed of 30%/min to 90%/min when weight ratio of residual solvent before stretching is 5% to 20%.
- a and b are an integer and 1 or more.
- MMA-BMA
- wherein, MMA is methyl methacrylate unit and BMA is butyl methacrylate unit.
Dependencies are inferred from the claim text.