Description

Soybean Oil/Rosin/Phthalic Anhydride/Pentaerythritol Resin CAS NO 68083-02-3 is a specialized alkyd-type resin synthesized from soybean oil, rosin, phthalic anhydride, and pentaerythritol. This resin is engineered to provide an excellent balance of flexibility, adhesion, and drying properties, making it a crucial component in high-performance coating formulations. It is primarily sought after by manufacturers in the paints, inks, and adhesive industries seeking to enhance product durability and application characteristics.

Application

• Industrial and Decorative Paints: Used as a primary film-forming agent in air-drying alkyd enamels and primers, offering good gloss and weather resistance.
• Printing Inks: Serves as a key resin binder for lithographic and letterpress inks, providing rapid setting and strong pigment wetting.
• Adhesives and Sealants: Imparts tack and binding strength in pressure-sensitive and assembly adhesives.
• Wood Finishes and Varnishes: Enhances penetration and film formation for clear coatings and wood stains.
• Metal Coatings: Utilized in corrosion-resistant primers and finishes for metal substrates.
• Modifying Agent: Can be blended with other resins (e.g., phenolics, epoxies) to improve flexibility and adhesion.

Basic Information

Product Name	Soybean Oil/Rosin/Phthalic Anhydride/Pentaerythritol Resin
CAS No.	68083-02-3
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Contact for details)
Synonyms	Alkyd Resin (soybean oil/rosin modified); Soybean Oil Modified Alkyd; Rosin Modified Pentaerythritol Phthalate Resin; Pentaerythritol Rosin Ester; Phthalic Anhydride-Pentaerythritol-Rosin-Soybean Oil Copolymer; Printing Ink Resin; 68083-02-3; Soybean oil, rosin, phthalic anhydride and pentaerythritol polymer
EINECS	Contact for details

Quality Control

Our Soybean Oil/Rosin/Phthalic Anhydride/Pentaerythritol Resin is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters such as acid value, viscosity, color, and solids content to ensure batch-to-batch consistency and performance. Certificates of Analysis (COA) documenting these specifications are available upon request.

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). This product is easily oxidized; prolonged storage should be under an inert atmosphere (e.g., nitrogen blanket) to maintain optimal quality. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 12
Acid Value (mg KOH/g)	≤ 20
Viscosity (Gardner-Holdt)	Z2 - Z6
Solids Content (%)	60 - 70 (in mineral spirits)
Drying Time (Set-to-touch)	≤ 4 hours

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