▎ 摘　　要

NOVELTY - Flame-retardant release film comprises polyester base film and silicone release coating. The polyester-based film is obtained by modifying polyester drawing film with a titanate coupling agent containing flame retardant function. USE - The flame retardant release film is useful in packaging, printing, screen printing, pad printing, nameplate, film switch, flexible circuit, insulating product, circuit board, laser anti-fake, bonding, electronic, film for sealing material, reflecting material, waterproof material, medicine, sanitary paper, adhesive product, die-cutting punching processing industry field. ADVANTAGE - The flame retardant release film has improved flame retardance performance and mechanical property. It has improved tensile strength, elongation at break, heat shrinkage, and transmittance. The residual rate of the obtained release film can reach 98-99% and the release effect of the film is very obvious, which effectively solves the defect problem of the existing flame-retardance release film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation of the flame-retardant release film, comprising method for preparing the flame-retardant polyester, comprising: (i) mixing the polyester matrix, the alcoholysis solution and the inorganic particles to carry out the esterification alcoholysis reaction to obtain a polyester oligomer melt; (ii) mixing the polyester oligomer melt with a flame retardant, an antioxidant, reinforcing fibers and fillers for polycondensation reaction.