Polyester Resin Dynapol L411 E1503 adhesion promoters and appliance topcoats
High-molecular-weight linear saturated polyester resin exhibits excellent adhesion to metal substrates. Bake-cured coatings formulated with L411, amine resins, and blocked polyisocyanates deliver outstanding flexibility and superior adhesion to metal surfaces.
Performance | Unit | Numerical |
Shape | Granular Solid Resin | |
Molecular Weight | Mn | 16000 |
Specific Gravity | （at30℃) | 1.23 |
Tg | ℃ | 47 |
Acid Value | KOH Mg/g | 2 |
Hydroxyl Value | KOH Mg/g | 5 |
- Parameters
Performance | Unit | Numerical |
Shape | Granular Solid Resin | |
Molecular Weight | Mn | 16000 |
Specific Gravity | （at30℃) | 1.23 |
Tg | ℃ | 47 |
Acid Value | KOH Mg/g | 2 |
Hydroxyl Value | KOH Mg/g | 5 |
Description
High-molecular-weight linear saturated polyester resin exhibits excellent adhesion to metal substrates. Bake-cured coatings formulated with L411, amine resins, and blocked polyisocyanates deliver outstanding flexibility and superior adhesion to metal surfaces.
Specification
Performance | Unit | Numerical |
Shape | Granular Solid Resin | |
Molecular Weight | Mn | 16000 |
Specific Gravity | （at30℃) | 1.23 |
Tg | ℃ | 47 |
Acid Value | KOH Mg/g | 2 |
Hydroxyl Value | KOH Mg/g | 5 |
Application
Dynapol® L411 is a high molecular weight solid saturated polyester resin suitable for hot-dip galvanized steel primers, aluminum primers, hot laminating adhesives, elastic resins, metallic decorative enamels, can interior coatings, foil primer printing inks, heat seal coatings, adhesion promoters, and appliance topcoats.
Dynapol L411 Dissolution Method
1. Add solvent to the reaction vessel;
2. Add Dysol 411 while stirring;
3. After adding all components, raise the vessel temperature to 95-105°C. When using methyl ethyl ketone (MEK) or acetone, raise the temperature to 50-60°C only. Continue stirring for 5 hours with maximum vessel pressure at 2 kg/cm².
4. Turn off the heat source, allow natural cooling, and continue stirring for one and a half hours.
5. Turn off the heat source, filter, and transfer the solution into drums for storage.
Common solvents for Dynapol L411: Methyl ethyl ketone (MEK), toluene, acetone, SOLVESSO, cyclohexanone (CYC), cellulose acetate (CA), isophorone, dibasic ester (DBE)
Package
25kg per bag
DYNAPOL® L | ||||||
Product | Glass transistion temperature | Molecular mass | Viscosity number | Structure | OH value | Acid value |
L 912 | 105/221 | 15000 | 55 | L | 5 | 3 |
L 952 | 70/158 | 18000 | 56 | L | 6 | 2 |
L 205 | 67/153 | 15000 | 55 | L | 6 | 2 |
L 206 | 67/153 | 20000 | 63 | L | 5 | 2 |
L 208 | 65/149 | 20000 | 70 | B | 6 | 6 |
L 210 | 63/145 | 20000 | 63 | L | 5 | 2 |
L 411 | 47/117 | 16000 | 61 | L | 5 | 2 |
L 490 | 40/104 | 15000 | 60 | B | 9 | 3 |
L 651 | 40/104 | 15000 | 64 | L | 5 | 2 |
L 658 | 40/104 | 20000 | 65 | B | 8 | 4 |
L 850 | 40/014 | 15000 | 62 | L | 4 | 2 |
Introduction | Glass transition temperature | Molecular weight | viscosity | Structure | OH | Acid value | Characteristics L=Linear B=Branched |
DYNAPOL®L 205 is a saturated, high-molecular-weight, linear copolyester. | 67 | 15000 | 55 | L | 6 | 2 | Baked enamel based on L205 and amino resin or closed-cell polyisocyanate resin is hard, flexible, exhibits high adhesion to metal substrates, and offers excellent corrosion resistance. |
DYNAPOL®L 206 is a saturated, high-molecular-weight, linear copolyester. | 67 | 20000 | 63 | L | 5 | 2 | Based on L206 and amino resin or closed-cell polyisocyanate resin, the enamel is hard, flexible, and exhibits high adhesion to metal with excellent corrosion resistance. Suitable for adhesive primers in flexible packaging applications on aluminum foil and PET film. |
DYNAPOL®L 208 is a saturated, high molecular weight, branched copolyester. | 65 | 20000 | 70 | B | 6 | 6 | Baked enamel based on L208 and amino resin or closed-cell polyisocyanate resin is reactive, hard yet flexible, with high adhesion to metal and excellent corrosion resistance. |
DYNAPOL®L 210 is a saturated, high molecular weight, linear copolyester. | 63 | 20000 | 63 | L | 5 | 2 | Baked enamels based on L210 and amino resins or closed-cell polyisocyanate resins are hard, flexible, and exhibit good adhesion to metals and excellent intercoat adhesion to PVC topcoats. |
DYNAPOL®L 323 is a saturated, high molecular weight, linear copolyester. | 30 | 15000 | 65 | L | 6 | 2 | Baked enamel based on L323 and amino resin or closed-cell polyisocyanate resin is highly flexible with excellent adhesion to various substrates. |
DYNAPOL®L 411 is a saturated, high molecular weight, linear copolyester. | 47 | 16000 | 61 | L | 5 | 2 | Baked enamel based on L411 and amino resin or closed-cell polyisocyanate resin exhibits flexibility with excellent adhesion to metal substrates. It demonstrates good compatibility with other coating materials. |
DYNAPOL®L 490 is a saturated, high molecular weight, slightly branched copolyester. | 40 | 15000 | 60 | B | 9 | 3 | Baked enamel based on L490 and amino resin or closed-cell polyisocyanate resin is highly flexible with good adhesion to metal substrates. |
DYNAPOL®L 651 is a saturated, high molecular weight, linear copolyester. | 40 | 15000 | 64 | L | 5 | 2 | Baked enamel based on L651 and amino resin or closed-cell polyisocyanate resin is highly flexible, exhibits high adhesion to metal, and provides good intercoat adhesion in PVC systems. |
DYNAPOL®L 658 is a saturated, high molecular weight, branched copolyester. | 40 | 20000 | 65 | B | 8 | 4 | Baked enamel based on L658 and amino resin or blocked polyisocyanate resin exhibits reactivity, flexibility, and high adhesion to metal. Also suitable as the elastic component for PVC-based enamels. |
DYNAPOL®L 850 is a saturated, high molecular weight, linear, elastic copolyester. | 40 | 15000 | 62 | L | 4 | 2 | Baked enamel based on L850 and amino resin or closed-cell polyisocyanate resin exhibits flexibility and high adhesion to metal. It is also suitable as an elastic component for enamels based on other polyester resins. It has good compatibility with other coating raw materials. |
DYNAPOL®L 907 is a saturated, high molecular weight, linear, rigid copolyester. | 75 | 15000 | 55 | L | 7 | 4 | Baked enamel based on L907 combined with amino resin or closed-cell polyisocyanate resin offers hardness, flexibility, high metal adhesion, and excellent chemical resistance, making it suitable for retort processes. |
DYNAPOL®L 912 is a saturated, high molecular weight, linear, very rigid copolyester. | 105 | 15000 | 55 | L | 5 | 3 | Baked enamel based on L912, when combined with amino resins or closed-cell polyisocyanate resins, offers hardness, flexibility, high metal adhesion, and outstanding chemical resistance, making it suitable for distillation processes. |
DYNAPOL®L 914 is a saturated, high molecular weight, linear, very rigid copolyester. | 100 | 15000 | 55 | L | 7 | 4 | L912-based baked enamel combined with amino resin or closed-cell polyisocyanate resin offers hardness, flexibility, high metal adhesion, and outstanding chemical resistance, making it suitable for distillation processes. |
DYNAPOL®L 952 is a saturated, high molecular weight, linear, rigid copolyester. | 70 | 18000 | 56 | L | 6 | 2 | Baked enamel based on L907 combined with amino resin or closed-cell polyisocyanurate resin offers hardness, flexibility, high metal adhesion, and excellent chemical resistance, making it suitable for cooking processes. |
REMARK |
The above information is believed to be accurate and presents the best explanation currently available to us. We assume no liability resulting from above content. The technical standards are formulated and revised by customers’ requirement and us, if there are any changes, the latest specification will be executed and confirmed in the contract. |
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Next : Polyester Resin (White Transparent) E1505 High Transparency Coatings Industry
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