Description

Glycerol, Rosin Polymer is a high-performance, modified resin derived from the esterification of rosin with glycerol. This compound is valued for its excellent tackifying properties, thermal stability, and compatibility with a wide range of polymers. It serves as a critical raw material in the formulation of adhesives, sealants, and coatings for demanding industrial applications. Key industries that rely on this polymer include pressure-sensitive adhesives, hot-melt adhesives, and printing inks.

Application

• Pressure-Sensitive Adhesives (PSAs): Acts as a primary tackifier in tapes, labels, and graphic films.
• Hot-Melt Adhesives (HMAs): Enhances adhesion, cohesion, and open time in packaging and product assembly.
• Industrial Coatings & Inks: Improves gloss, hardness, and drying properties in protective coatings and printing inks.
• Sealants & Caulks: Provides flexibility and long-term adhesion in construction and automotive sealants.
• Rubber Compounding: Used as a processing aid and tackifier in various rubber formulations.
• Polymer Modification: Serves as a compatibilizer and modifier to enhance the properties of other synthetic resins.

Basic Information

Product Name	Glycerol, Rosin Polymer
CAS No.	94336-13-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Glycerol Rosinate; Glycerol Ester of Rosin; Ester Gum; Glyceryl Rosinate; Rosin Glycerol Ester; Glycerol Abietate; Glycerol Ester of Wood Rosin; Glycerol Ester of Gum Rosin
EINECS	Contact for details

Quality Control

Our Glycerol, Rosin Polymer is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent performance, including tests for acid value, softening point, color, and solubility. Certificates of Analysis (COA) are provided with every shipment to guarantee compliance with agreed specifications and support your quality assurance protocols.

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 heat sources and open flame. Under these conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Acid Value (mg KOH/g)	3 - 10
Softening Point (Ring & Ball, °C)	80 - 90
Color (Gardner)	≤ 8
Saponification Value (mg KOH/g)	150 - 170
Solubility (in Toluene)	Clear, complete solution

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