ROSIN ESTER

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Post Date: Nov 13, 2007
Validity Date: Nov 13, 2019
Category: Chemicals » Resin

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Description

Rosin Pentaerythrite Resin is the product of esterification of rosin with pentaerythrite. It's a transparent irregular solid after vacuum treatment. It can soluble in tar, ester, turpentine oil and similar solvents; insoluble in alcoholic solvents; partially soluble in petroleum products; mix well with vegetable oils; light colored; resistant to yellowing; heat resistant; highly adhesive. It is widely used for ester glue phenolic resin paints (through polymerization with vegetable oils); widely used in glue industry as low cost enhancer for hot-melt, pressure-sensitive and other types of adhesives.

Glycerol ester of gum rosin are made from gum rosin or refined gum rosin through esterification with glycerol; and with the properties of high viscosity, excellent hear and aging stability, excellent polymer compatibility etc. It is a good tackifying resin.Soluble in tar, ester, turpentine oil and similar solvents; insoluble in alcoholic solvents; partially soluble in petroleum products; mix well with vegetable oils; light colored; resistant to yellowing; heat resistant; highly adhesive. Soluble in ester solvent, petroleum products and turpentine, insoluble in alcoholic solvents. It can help to improve the initial and persistent viscosity of EVA heat melt adhesive and has good cold resistance ability. Light color, resistant to be yellow, high adhesive. it has the proper of water-resistance, durability and brightness, which is suitable to the industry of adhesive, paint ink, stencil and electronic applications, etc. and for ester glue phenolic resin paints (through polymerization with vegetable oils); widely used in glue industry as low cost enhancer for hot-melt, pressure-sensitive and other types of adhesives.

Rosin Modified Phenolic Resin, a transparent irregular solid, is the vacuum treated product of esterification of glycerol (or pentaerythrite) with the polycondensate of rosin, phenol (or bisphenol A) and formaldehyde. It soluble in tar, ester, turpentine oil and similar solvents; insoluble in alcoholic solvents; partially soluble in petroleum products; mix well with vegetable oils; high softening point; fast drying. Rosin Modified Phenolic Resin can be used for phenolic resin paints (through polymerization with vegetable oils under heat); the resultant paint is fast drying, high in hardness, and shiny; as the low cost enhancer in bonding capability for pressure-sensitive adhesive, hot-melt adhesive, and other bonding agents; as the enhancer in reflectiveness and texture of printing ink.