Polyester film and method for manufacturing same
A polyester film, polyester base film technology, applied in chemical instruments and methods, synthetic resin layered products, coatings, etc., can solve problems such as wrinkling, curling, and product quality degradation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0267] 1) Preparation of water dispersion resin composition (1)
[0268] (A) / ( B) = 40 / 60 adhesive as adhesive.
[0269] (A) The acrylic resin is a resin formed by copolymerizing 60 mol % of glycidyl acrylate and 40 mol % of vinyl propionate, and has a weight average molecular weight of 35,000.
[0270] (B) Water-dispersed polyester resins use 50 mol% of acid components (15 mol% of sulfonic acid terephthalate) relative to 50 mol% of diol components (50 mol% of diethylene glycol and 50 mol% of ethylene glycol). Formic acid and 85mol% terephthalic acid) copolymerized resin, the weight average molecular weight is 14000.
[0271] A binder with a solid content of 0.5 wt% and a silicone wetting agent (BYK348 of BYKCHEMIE) of 0.3 wt% were added to water and stirred for 2 hours to prepare a water-dispersed resin composition with a total solid content of 0.8 wt%. 1).
[0272] The swelling ratio, gel fraction and Tg as described above were measured using the water-dispersed resin co...
Embodiment 2
[0277] 1) Preparation of water dispersion resin composition (2)
[0278] Using (A) a solid content weight ratio between an acrylic resin formed by copolymerizing a radically polymerizable unsaturated monomer containing a glycidyl group and (B) a water-dispersible polyester resin is (A) / ( B) = 70 / 30 adhesive as adhesive.
[0279] (A) The acrylic resin is a resin formed by copolymerization of 60 mol% glycidyl acrylate and 40 mol% vinyl propionate, and has a weight average molecular weight of 30,000.
[0280](B) Water-dispersed polyester resins use 50 mol% of acid components (15 mol% of sulfonic acid terephthalate) relative to 50 mol% of diol components (50 mol% of diethylene glycol and 50 mol% of ethylene glycol). The resin formed by copolymerization of formic acid and 85mol% terephthalic acid) has a weight average molecular weight of 12,000.
[0281] The solid content is 5wt% binder and 0.3wt% silicone wetting agent (BYKCHEMIE's BYK348) into water, stirred for 2 hours, thereb...
Embodiment 3
[0284] As the base layer (B), polyethylene terephthalate with an intrinsic viscosity of 0.65, a diethylene glycol content of 1.2 wt%, and an oligomer content of 1.4 wt% was added to an extruder to melt extrude, as Surface layer (A) using a polyethylene terephthalate sheet prepared by solid-state polymerization with an intrinsic viscosity of 0.67, a diethylene glycol content of 0.7 wt% and an oligomer content of 0.5 wt%, and compared to A sheet extrudate cast as A / B / A3 layer was prepared with 50 ppm of silica particles with a diameter of 0.7 μm based on the total polyethylene terephthalate weight. Thereafter, the water-dispersed resin composition (1) thus prepared was coated on both surfaces by a bar coating method, and then the temperature was raised to 110-150°C at 1°C per second, after preheating and drying , stretched on TD by a factor of 3.5. Thereafter, heat treatment was performed at 230° C. in a 5-pillar tenter, relaxation was performed by 10% in MD and TD at 200° C., ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| glass transition temperature | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More