Description

Glycerol Esters Of Partially Hydrogenated Woodrosin CAS NO 68153-42-4 is a high-performance, modified rosin ester derived from natural wood rosin. This specialized chemical is valued for its excellent tackifying properties, thermal stability, and compatibility with a wide range of polymers. It serves as a critical component for formulators in the adhesives, coatings, and polymer modification industries seeking reliable and consistent performance.

Application

• Hot-Melt Adhesives (HMAs): A primary tackifier for pressure-sensitive and structural hot-melt adhesives, providing excellent initial tack and peel strength.
• Pressure-Sensitive Adhesives (PSAs): Used in tapes, labels, and graphic films to enhance adhesion and cohesion properties.
• Polymer Modification: Acts as a compatibilizer and processing aid in rubber and elastomer compounds, improving flexibility and adhesion.
• Industrial and Protective Coatings: Imparts gloss, hardness, and water resistance in varnishes and specialty coating formulations.
• Inks: Used as a resinous component in flexographic and gravure inks to improve pigment wetting and film formation.
• Sealants and Caulks: Enhances the adhesive and cohesive properties of non-curing and curing sealant formulations.

Basic Information

Product Name	Glycerol Esters Of Partially Hydrogenated Woodrosin
CAS No.	68153-42-4
Molecular Formula	Complex mixture; primarily based on abietic acid derivatives
Molecular Weight	Varies (typically 600-1200 g/mol for resin esters)
Synonyms	Glycerol ester of partially hydrogenated wood rosin; Hydrogenated wood rosin glycerol ester; Ester gum, hydrogenated; Glycerol ester of hydrogenated rosin; Rosin glycerol ester, hydrogenated; Tackifier resin; GEW; Glyceryl hydrogenated rosinate; (Partial) hydrogenated rosin glycerol ester
EINECS	Contact for details

Quality Control

Our Glycerol Esters Of Partially Hydrogenated Woodrosin is manufactured under a strict quality management system. Each batch is tested against key parameters including acid value, softening point, color, and solubility to ensure consistent performance and reliability for your formulations. Certificates of Analysis (COA) are available upon request, and we can support compliance with relevant standards such as FDA 21 CFR for indirect food contact applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from sources of heat and open flame. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	80 - 100 °C
Acid Value	≤ 10 mg KOH/g
Color (Gardner)	≤ 6
Saponification Value	Contact for details
Solubility	Soluble in common organic solvents

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.