Description

Rosin, Maleated, Polymer With Glycerol is a chemically modified rosin ester, produced by the reaction of maleic anhydride-modified rosin with glycerol. This specialized polymer is valued for its enhanced thermal stability, improved adhesion, and excellent compatibility with a wide range of polymers and resins. It serves as a critical performance additive and tackifier in demanding industrial applications, particularly within the adhesives, coatings, and ink manufacturing sectors.

Application

• Hot-Melt Adhesives (HMAs): A primary tackifier providing excellent adhesion to various substrates, including plastics, metals, and paper.
• Pressure-Sensitive Adhesives (PSAs): Enhances tack, peel strength, and shear resistance in tapes and labels.
• Industrial Coatings & Inks: Improves gloss, hardness, and drying properties in protective coatings and printing inks.
• Polymer Modification: Acts as a compatibilizer and processing aid in rubber compounds and engineering plastics.
• Sealants & Caulks: Imparts flexibility and long-term durability in construction and automotive sealants.
• Foundry Resins: Used as a binder component in core and mold-making processes.

Basic Information

Product Name	Rosin, Maleated, Polymer With Glycerol
CAS No.	68038-41-5
Molecular Formula	Complex Polymer
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Maleated Rosin Glycerol Ester; Glycerol Ester of Maleated Rosin; Maleic Anhydride-Modified Rosin Glycerol Ester; Rosin Glycerol Ester, Maleated; Tackifier Resin; Modified Rosin Ester; Polymerized Rosin Ester; Ester Gum, Maleated
EINECS	Contact for details

Quality Control

Our production of Rosin, Maleated, Polymer With Glycerol adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistent performance characteristics such as acid value, softening point, color, and viscosity. Certificates of Analysis (COA) documenting these specifications are provided to guarantee product integrity and traceability for our global B2B clients.

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). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve quality. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	80 - 120 °C
Acid Value	10 - 30 mg KOH/g
Color (Gardner)	≤ 8
Saponification Value	Contact for details
Viscosity (at 160°C)	Contact for details

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