The invention relates to a biaxial orientation film, in particular to a biaxial orientation optical polyester film which is co-extruded by adopting an A/B/A or A/B/C three-layer structure, and the A layer and the C layer contain modified polyester; the modified polyester is obtained by copolymerizing binary acid and dihydric alcohol; the dibasic acid is 4-(3, 5-dicarboxyl phenoxy) phthalic acid, 2-(carboxyl methoxy)-4-fluorobenzoic acid, 4, 4-propane diradical dioxy dibenzoic acid and terephthalic acid. The optical polyester film has the advantages of no influence on a water contact angle of a PPF self-repairing surface before and after stripping, no orange peel, easiness in stripping, simple process, low cost and the like.
本发明涉及一种双轴取向膜,尤其是一种双轴取向光学聚酯薄膜,采用A/B/A或A/B/C三层结构共挤,A层、C层含有改性聚酯;所述改性聚酯采用二元酸与二元醇共聚获得;所述二元酸为4‑(3,5‑二羧基苯氧基)邻苯二甲酸、2‑(羧基甲氧基)‑4‑氟苯甲酸、4,4‑丙烷二基二氧基二苯甲酸与对苯二甲酸。该光学聚酯薄膜具有剥离前后不影响PPF自修复面水接触角、无橘皮纹、易剥离、工序简单、成本低等优点。
Biaxial orientation optical polyester film
一种双轴取向光学聚酯薄膜
25.03.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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