Description

Rosin, Polymd., Polymer With Glycerol And Pentaerythritol CAS NO 68512-68-5 is a chemically modified rosin ester, produced by polymerizing rosin and esterifying it with a combination of glycerol and pentaerythritol. This process yields a high-performance resin with enhanced thermal stability, improved color retention, and excellent compatibility with a wide range of polymers and solvents. It is a critical raw material for formulators in the adhesives, coatings, and ink industries seeking durable, high-tack, and versatile resin solutions.

Application

• Hot-Melt Adhesives (HMA): A primary tackifier providing excellent adhesion to various substrates, including paper, cardboard, plastics, and metals.
• Pressure-Sensitive Adhesives (PSA): Used in tapes, labels, and graphic films to deliver balanced tack, peel strength, and shear resistance.
• Industrial and Protective Coatings: Imparts gloss, hardness, and water resistance in solvent-based and solvent-free coating formulations.
• Printing Inks: Acts as a resin vehicle in gravure and flexographic inks, enhancing pigment wetting, print gloss, and rub resistance.
• Rubber Compounding: Functions as a processing aid and tackifier in rubber products such as tires, belts, and seals.
• Sealants and Caulks: Contributes to elasticity, adhesion, and durability in construction and automotive sealant applications.

Basic Information

Product Name	Rosin, Polymd., Polymer With Glycerol And Pentaerythritol
CAS No.	68512-68-5
Molecular Formula	Complex Mixture
Molecular Weight	Contact for details
Synonyms	Polymerized Rosin Glycerol Pentaerythritol Ester; Pentaerythritol/Glycerol Ester of Polymerized Rosin; Glycerol/Pentaerythritol Rosin Ester; Polymerized Rosin Ester; Modified Rosin Ester; Tackifying Resin; Rosin Ester Resin; Ester Gum (Modified)
EINECS	Contact for details

Quality Control

Our production of Rosin, Polymd., Polymer With Glycerol And Pentaerythritol adheres to stringent quality management protocols. Each batch undergoes rigorous testing for key parameters including acid value, softening point, color, and viscosity to ensure consistency and performance. Certificates of Analysis (COA) are available upon request, providing full traceability and compliance with relevant industry specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from heat sources and open flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale Yellow to Amber Solid
Softening Point (Ring & Ball)	90 - 110 °C
Acid Value	≤ 20 mg KOH/g
Color (Gardner)	≤ 8
Saponification Value	Contact for details
Viscosity (at 25°C, 60% in Toluene)	Contact for details

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