Description

Soybean Oil, Polymer With Fumaric Acid, Glycerol And Phthalic Anhydride CAS NO 68390-03-4 is a specialized alkyd resin derived from renewable soybean oil, modified with key monomers to create a versatile polymeric backbone. This compound is engineered to provide excellent film-forming properties, adhesion, and flexibility, making it a crucial intermediate for high-performance coatings. It is primarily sought by manufacturers in the paints, coatings, inks, and adhesive industries seeking sustainable and durable resin solutions.

Application

• Industrial and Architectural Coatings: Used as a primary resin in solvent-borne and high-solid alkyd paints for metal protection and decorative finishes.
• Printing Inks: Serves as a binder and vehicle in offset and lithographic inks, providing gloss and rub resistance.
• Adhesives and Sealants: Acts as a tackifying and film-forming agent to enhance bond strength and flexibility.
• Wood Finishes and Varnishes: Imparts durability, water resistance, and a clear, protective film for furniture and flooring.
• Corrosion-Resistant Primers: Formulated into primers for automotive, marine, and industrial equipment due to its good adhesion to metal substrates.
• Plasticizers and Modifiers: Used as a polymeric plasticizer or modifier to improve the flexibility and processability of other polymers.

Basic Information

Product Name	Soybean Oil, Polymer With Fumaric Acid, Glycerol And Phthalic Anhydride
CAS No.	68390-03-4
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Polymer)
Synonyms	Alkyd resin, soybean oil-modified; Soybean oil alkyd resin; Soybean oil-fumaric acid-glycerol-phthalic anhydride polymer; Modified alkyd resin from soybean oil; Fumarated alkyd resin; Phthalic alkyd resin; Soybean oil polymer resin; Drying oil alkyd; Long oil alkyd resin; CAS 68390-03-4
EINECS	Contact for details

Quality Control

Our Soybean Oil Polymer is manufactured under strict quality systems to ensure batch-to-batch consistency for industrial applications. Quality is verified through parameters including acid value, viscosity, color, and solids content. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and open flame. This material is sensitive to strong acids/organic solvents and is easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen blanket) for long-term stability and to minimize skinning or gelation. Ideal storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 8
Acid Value (mg KOH/g)	≤ 10
Viscosity (Gardner-Holdt)	Z2 - Z6
Solids Content (%)	70 ± 2
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.