Rosin Modified Phenolic Resins are synthetic, high-molecular-weight resins created by reacting rosin with phenolic compounds (alkylphenols, formaldehyde, and polyols). They offer excellent gloss, fast-drying properties, superior adhesion, and, notably, high viscosity for printing inks and coatings. These resins are extensively used in offset lithographic inks (sheet-fed/web), varnishes, adhesives, and coatings.
Maleic resins (or maleic modified rosin esters) are pale, hard synthetic resins produced by reacting gum rosin with maleic anhydride and polyols. They are essential in coatings, paints, and printing inks, offering fast drying, high gloss, excellent hardness, and good adhesion. Key applications include nitrocellulose lacquers, paper varnishes, and gravure inks.
Alcohol soluble maleic resin is a pale yellow, transparent, bead or flake-shaped resin produced by modifying gum rosin with maleic anhydride, followed by esterification with polyhydric alcohol. It is characterized by excellent alcohol solubility, fast drying, high gloss, and high hardness, making it ideal for alcohol-based intaglio printing inks, varnish, coatings, and water-based inks (when neutralized with amine).
Ester gum, or glycerol ester of rosin, is a food-grade resin derived from natural pine rosin, widely used as a stabilizer in beverages (E445) to keep oils suspended and as a base for chewing gum. It acts as a tackifier in adhesives, coatings, and inks due to its high compatibility with polymers, high gloss, and excellent adhesion properties.
Resinates are metal salts of resin acids (e.g., abietic acid) used primarily as paint driers, in ink formulation, coatings, and waterproofing. Key types include calcium, zinc, cobalt, and manganese resinate, which improve coating hardness, gloss, and adhesion. They are generally insoluble in water and can be flammable, posing fire risks during handling.
Disproportionated Rosin (DP Rosin) is a high-quality, modified gum rosin processed to improve stability,, increasing tackifying, and emulsifying properties. It is widely used as a key ingredient in synthetic rubber (SBR), adhesive formulations, paints, and ink industries due to its excellent heat resistance and oxidation stability.
Liquid tackifiers are low-molecular-weight resins or additives used to increase stickiness, adhesion, and cohesion in adhesives, sealants, coatings, and rubber compounds. They are crucial for formulating pressure-sensitive adhesives (PSAs), hot-melt adhesives, and lubricants (greases) to prevent dripping or flinging. Common forms include rosin esters and hydrocarbon resins used in industrial, automotive, and specialized applications.
Tackifier dispersions are solvent-free, aqueous emulsions of resins (rosin esters, hydrocarbon, or terpene) designed to enhance the adhesive strength, tack, and Peel properties of water-based adhesive systems. Widely used in packaging, pressure-sensitive adhesives (PSA), and tape/label applications, they provide excellent compatibility with natural rubber, SBR, and acrylic emulsions.
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