Polymerized Rosin in Inks Adhesives and Paints

The polymerized Rosin is made from Gum Rosin, mainly used as raw material in inks, adhesives and paints.

Item NO.:
PR115
EINECS No.:
232-475-7
CAS No.:
8050-09-7
Color Gardener:
Light Yellow
Property:
Chinese Gum Rosin product is used for the manufacturing of paper, paint, soap and printing ink. Since rosin is easily softened and oxidized, in the oil paint industry, the carboxylation reaction of resin acid is usually employed to produce resinate for further use. While in the producing of synthetic rubber and printing ink, resin acid is changed into disproportionate rosin, polymerized rosin, hydrogenated rosin, etc for further use by its double bond reaction.

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Polymerized Rosin in Inks Adhesives and Paints

Product Name

Polymerized Rosin

Type

PR90, PR115, PR140

Chemical Properties

The polymerized Rosin is made from Gum Rosin by sulfuric acid and chloride zinc process, it has characteristics of high content of dimers, high softening point, high acid value, no crystal, low content of hot-water-soluble material, easy dissolving in oil, light color changes of lead acetate paper.

Specifications

Properties	Target Values (Spec Limits)
Type	PR90	PR115		PR140
Appearance	Yellow Transparent Solid
Color Gardner	≤7		≤10	≤10
Softening Point (R&B) °C	88-93		110-120	135-145
Acid Value, mg KOH/g	≤165		≥145	≥140
Density (20°C, Abt. g/cm³)	1.08-1.1		1.08-1.1	1.08-1.1