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Dianal BR-220
Dianal BR-220 is a relatively low molecular weight acrylic resin with high solubility and compatibility. It is used for flexographic inks and metal coatings.
Fulfilled By ChemPoint
- Manufacturer: Mitsubishi Chemical Group
- Product Line: Elvacite® Specialty Acrylic Resins
- Product: Elvacite® Methacrylate Copolymers
- Industries: Adhesives | Coatings
- Authorized Countries: Canada | United States
Fulfilled By ChemPoint
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Overview
Dianal BR-220 is a thermoplastic acrylic resin with a relatively low molecular weight. It is supplied as a nondusting solid bead that is soluble in solvents such as ketones, toluene, and glycol ethers. BR-220 is used to form films with excellent adhesion to metals and creates a high degree of flexibility while maintaining good hardness.
BR-220 is an ideal binder for flexographic inks, where it is compatible with most pigments and additives. With it measuring a 1 on the Gardner color scale, it is also used as a binder for clear coats that help protect bright metals, such as silver, copper, and brass. BR-220 produces durable films with high resistance to abrasion, chemical attack from dilute acids and bases, yellowing due to UV exposure, and weathering. This resin may be combined with nitrocellulose to improve drying speeds.
Specifications
Nonvolatiles, min %: 99.0
Clarity in toluene at 30% solids: Clear
Gardner color, max: 1
Gardner viscosity at 25°C and 30% solids in toluene: E–J
Glass transition temp, onset °C: 50
Molecular weight: 65,000
Acid number, mg KOH/g resin: 9
MFI, g/10 min at 190°C: 20
Primary Chemistry: Acrylic
Features & Benefits
- Forms films with a good balance of flexibility and toughness
- Forms clear solutions and films with high gloss
Problems Solved
Coloration of clear topcoats due to the presence of resins that impart color to films Poor durability of coatings or inks on flexible plastic or metallic substrates Degradation of coatings or inks due to exposure to chemicals or harsh environmental conditions
Applications
Flexographic inks Metal coatings
Related Applications
Related Chemistries
Adhesives
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