THERMOPLASTIC POLYESTER USED FOR THIN FILM, AND PREPARATION METHOD THEREFOR

• Main Author: LIN, Fuliang
• Format: Patent
• Language: Chinese; English; French
• Published: 30.03.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided is a thermoplastic polyester used for a thin film. In a process of preparing a polyester, terephthalic acid and ethylene glycol are used to serve as a base material, another component is simultaneously added to adjust a group on a segment, and an auxiliary material is also prepared separate from the base material; the auxiliary material has a large quantity of functional groups, and terephthalic acid and ethylene glycol are also used to serve as a matrix. As a consequence, a better degree of dispersion during subsequent mixing and a polymerization reaction can be realized, and a better effect can be achieved. Also, the influence of a one-time reaction on a functional group is eliminated, allowing an obtained polyester to have more stable performance. L'invention concerne un polyester thermoplastique utilisé pour un film mince. Dans un procédé de préparation d'un polyester, de l'acide téréphtalique et de l'éthylène glycol sont utilisés pour servir de matériau de base, un autre composant est ajouté sim