Eastman Launches Emulsion Tackifying Resin for Waterborne Adhesives

USA, Kingsburg, Tennessee (June 21, 2005) — Eastman Chemical Corporation introduced Tacolyn 3509, a low surface tension (LST) emulsion tackifying resin for adhesive tape and label waterborne adhesives. With Tacolyn 3509, it is no longer necessary to add surfactants or other wetting agents in the aqueous adhesive, thereby reducing the cost of the adhesive and increasing the product's adhesion to a range of materials including polyethylene and polypropylene. Tacolyn 3509 Emulsion Tackifier is a solvent-free, environmentally friendly material that significantly improves the initial tack and release forces of aqueous pressure-sensitive adhesives based on acrylic polymers or butadiene-styrene latex.

Laura Martin, chief applications scientist at Eastman Chemical Co., Ltd., said: “Tacolyn 3509 is easy to use and requires no modification prior to use, which significantly increases production efficiency and thus saves costs. Eastman is committed to working with key industry customers to become The supplier of the best solution for the adhesive industry."

Tacolyn 3509 has a very low surface tension and therefore enables good wetting of the adhesive when applied without the need for additional surfactants or other wetting agents that can cause foaming. Due to the reduction of the surfactant content in the pressure-sensitive label, the water resistance of the pressure-sensitive label is also improved, and the good adhesion can be maintained even under humid conditions such as long-term storage and shipping. In addition, due to the low surface tension technology, the adhesive has a higher solid content at the same viscosity, which helps to increase the drying speed of the film.

Laura Martin also said: “Tacolyn 3509's unique emulsifier chemistry enables the adhesive to have stronger and longer-lasting tackiness. Tacolyn 3509 is an effective adhesive for water-based tackifying resins, and its water-based adhesives are widely used. Paper labels, stamps, labels for glass and plastic bottles, and even labels for difficult-to-stick recycled paper products.

Tacolyn 3509 is currently manufactured in North America and Europe and sold to manufacturers around the world.