Gum rosin WW Grade is the transparent light yellow or transparent yellow solid. It is made from pine trees. It is a kind of natural resin, mainly composed of various kinds of resin acids; it can be dissolved easily in many organic solvents, and has special chemical activity.
The Industry grade of Glyceryl Rosinate (a polyol ester of rosin), also called Glycerol Esterof Gum Rosin (GEGR), which is used for specialty industries of adhesives,coating and paints. G-85 also widely used in polymers including EVA, acrylics, polyurethanes, SIS and SBS.
Glycerol Rosin Resin G 90 is the slight yellow or water-white transparent solid, which is made from gum rosin or refined gum rosin through esterification with glycerol; G-90 is good tackifying resin. The Industry grade of Glyceryl Rosinate (a polyol ester of rosin), also called Glycerol Esterof Gum Rosin (GEGR), which is used for specialty industries of adhesives,coating and paints. G-90 also widely used in polymers including EVA, acrylics, polyurethanes, SIS and SBS.
Disproportionated rosin (DPR) is compound of dehydroabie acid and dihydroabtice acid, the DPR is processed through catalytic reaction of gum rosin on proper temperature. In the synthetic rubber industry, DPR is used as emulsifier in the producing of various products including styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber and acrylonitrile-butadiene-styrene rubber. Using DPR as an emulsifier, rubber product will improve in cohesion, and the endurance to heat will increase for 25%. The endurance to both abrasion and laceration of this rubber is better than ordinary styrene-butadiene rubber. The cohesion will be greatly enhanced if blended with natural rubber.
Precipitated silica 165, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.
