Butyl acrylate is a low Tg ester of acrylic acid that is used as a monomer to produce flexible acrylic polymers and copolymers used in adhesives, caulks, and sealants.
Butyl Acrylate (CAS No. 141-32-2), or n-butyl acrylate, is a low Tg acrylate monomer that is produced by the esterification of acrylic acid with n-butanol. Butyl acrylate is often used in chemical manufacturing and polymerized with high Tg monomers like methyl methacrylate, Styrene, and Vinyl Acetate in order to balance the properties of the final polymer. Incorporating butyl acrylate into a polymer helps to improve tack, flexibility, impact resistance, and overall durability. The flexibility and tack provided by butyl acrylate make it an ideal monomer for producing polymers used in adhesive and sealant formulas.
Appearance: clear and colorless
Physical Form: liquid
Odor: pungent
Molar Mass: 128.2
Assay (Gas chromatography) - min 99.5%
Water Content (ASTM E 203) - max. 0.05%
Acid Content (ASTM D 1613) - max. 0.01%
Color on despatch (ASTM D 1209) - max. 10
Standard Stabilization (ASTM D 3125) 15+/- 5ppm MEHQ
Heat of Polymerization: kJ/kg
Available in drums for easier handling and storage. Low Tg (-45°C) Useful for feed stock synthesis Readily undergoes addition reactions.
Acrylic polymer is too rigid
Adhesive lacks flexibility
Acrylic Resins
Structural adhesives
Pressure Sensitive Adhesives
Packaging Adhesives
Latex Paints
Caulks & Sealants
Acrylic rubber
Concrete Coatings
Elastomeric Coatings
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