Description

Rosin/Polymerised Rosin/Maleic Anhydride/Pentaerythritol CAS NO 68458-65-1 is a specialized resin ester, a complex chemical adduct formed from rosin derivatives, maleic anhydride, and pentaerythritol. This compound is engineered to provide enhanced thermal stability, adhesion, and film-forming properties compared to standard rosin esters. It is a critical raw material for formulators in the coatings, adhesives, and ink industries seeking high-performance, durable resin systems. The product offers a robust solution for applications requiring excellent gloss, water resistance, and compatibility with a wide range of solvents and polymers.

Application

• Hot-Melt Adhesives: Acts as a key tackifier, providing excellent adhesion to various substrates including paper, cardboard, and certain plastics.
• Industrial & Protective Coatings: Used in alkyd resins and varnishes to improve drying time, hardness, gloss, and water resistance.
• Printing Inks: Serves as a resinous component in gravure and flexographic inks, enhancing pigment wetting, gloss, and printability.
• Polymer Modification: Employed as a modifier in rubber compounding and other polymer systems to improve processing and specific physical properties.
• Sealants and Caulks: Imparts tack and improves the cohesive strength and durability of sealant formulations.
• Solder Flux: Used in rosin-based flux formulations for electronics assembly, where it promotes solder wetting and removes oxides.

Basic Information

Item	Detail
Product Name	Rosin/Polymerised Rosin/Maleic Anhydride/Pentaerythritol
CAS No.	68458-65-1
Molecular Formula	Complex Mixture / Adduct
Molecular Weight	Contact for details
Synonyms	Pentaerythritol Rosin Maleate; Maleated Rosin Pentaerythritol Ester; Rosin-Maleic Anhydride-Pentaerythritol Adduct; Ester Gum 8D; Pentaerythritol Ester of Maleic Modified Rosin; Tackifying Resin; Modified Rosin Ester; Glycerol Ester of Maleic Rosin (related); Polymerized Rosin Ester.
EINECS	Contact for details

Quality Control

Our production of Rosin/Polymerised Rosin/Maleic Anhydride/Pentaerythritol adheres to stringent quality management protocols. Each batch is tested against key parameters including acid value, softening point, color, and solubility to ensure consistency and performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing the specific results for your quality assurance records. Our commitment to reliable supply and batch-to-batch uniformity meets the demanding requirements of industrial-scale manufacturing.

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, sparks, and open flame. As the product is easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen blanket) for long-term storage of bulk quantities to maintain optimal quality. Keep containers tightly sealed when not in use to prevent moisture pickup and contamination.

Specification

Item	Specification
Appearance	Pale yellow to amber solid / flakes
Softening Point (Ring & Ball)	100 - 130 °C
Acid Value	10 - 30 mg KOH/g
Color (Gardner)	≤ 8
Saponification Value	Contact for details
Solubility	Soluble in aromatic hydrocarbons, esters, ketones; insoluble in water

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