HEAT-SHRINKABLE FILM AND PROCESS FOR PREPARING THE SAME
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United States of America
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Mar 6, 2025
app pub date -
Jul 18, 2024
filing date -
Jul 18, 2024
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Abstract
The embodiments relate to a heat-shrinkable film and a process for preparing the same. The heat-shrinkable film comprises a mixed resin, wherein the mixed resin comprises a copolymerized polyester-based resin in which a diol and a dicarboxylic acid are copolymerized; and a polybutylene terephthalate-based resin, and, when a specimen of the heat-shrinkable film having a width of 15 mm, a length of 110 mm, and a thickness of 45 μm is immersed in hot water at 70° C. for 60 seconds to measure shrinkage stress, the development time of the initial shrinkage stress is 20 seconds or shorter. The heat-shrinkable film according to the embodiment comprises a mixed resin having a specific composition, wherein the development time of the initial shrinkage stress is controlled.
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