Vinyl resin terpolymer is similar with VAGH of Dow chemical
Vinyl resin terpolymer ---Copolymer resin B-VAGH
Description: It is a high molecular weight, hydroxyl-functional, partially-hydrolyzed B-VAGH resin. It is a hydroxyl modified Terpolymer of vinyl chloride and vinyl acetate and vinyl alcohol.
Introduction: It is a cross linkable with amino resins and polyisocyanates and is also compatible with a wide variety of resins including alkyds and acrylics. This resin has good adhesion to vinyl, and treated polyester and PE substrates. It imparts good sandability in vinyl/alkyd/urea wood sealers. It is cited in FDA regulations for use in food contact applications and is also heat-sealable.
Application: It was widely be used in the industries of ink, paint, coating, industrial repair paint, marine paint, wooden surface paint, paper paint, metal decorate paint, container paint, adhesive for PVC/ armor plate, adhesive for tape etc…
Typical applications:
*Flexible packaging and binder in Magnetic Tape *General Metal and Container Coatings
*Wood Finishes and Paper Coatings *Industrial Maintenance
*Marine and Maintenance Coatings
Features:
Cross linkable with amino resins or polyisocyanates; Compatible with many other generic resins;
Resistance to water, alcohols and aliphatic hydrocarbons; FDA approved for food contact applications;
High glass transition temperature ( Tg) for blocking resistance and sandability in wood sealers;
Adhesion to vinyl, cellulosics, PVC, ABS and properly treated PET and PE;
Technical data:
Property Value
Appearance White or Slight yellow powder
K value 57-59
Vinyl Acetates by mass % 4.0-5.0
Hydroxyl Value 70-77
Volatile content % 1.5 % max.
G/ML pile density 0.60 (g /ml) min
Solubility 25% MEK: Toluene 1:1 pale yellow color, transparent
Recommendation for Resin Dissolving Procedure:
Add weak solvent such as ethyl acetate or toluene into the blending tank first with agitation. Slowly put terpolymer resin such as B-VAGH into the above solvents with agitation. Put strong solvents last, such as MEK or MIPK If possible, heating and keeping temperature at 60-70 degree C, which will help the dissolving process, otherwise, takes longer time. Resin concentration may vary with client's formulation
Terpolymer of vinyl chloride and vinyl acetate and vinyl alcohol.
