Description

Castor Oil, Dehydrated, Polymer With Glycerol, Pentaerythritol, Phthalic Anhydride And Soybean Oil is a specialized alkyd resin derived from a co-polymerization of modified vegetable oils and polyols. This compound matters as a versatile, bio-based polymeric intermediate that offers excellent film-forming properties, adhesion, and flexibility. Industrial manufacturers in the coatings, inks, and adhesive sectors rely on this resin to formulate high-performance, sustainable products with enhanced durability and gloss.

Application

• Industrial Coatings Binder: A key resin for manufacturing air-drying and baking enamels, providing good hardness and gloss retention.
• Printing Inks: Used as a vehicle in offset and lithographic inks for improved pigment wetting and printability.
• Adhesive Formulations: Serves as a tackifying and flexibilizing agent in pressure-sensitive and structural adhesives.
• Protective Coatings: Formulated into corrosion-resistant primers and topcoats for metal and wood substrates.
• Sealants and Caulks: Imparts elasticity and weather resistance to construction and automotive sealants.
• Modifier for Other Polymers: Used to plasticize or enhance the properties of other resin systems like epoxies or phenolics.

Basic Information

Item	Details
Product Name	Castor Oil, Dehydrated, Polymer With Glycerol, Pentaerythritol, Phthalic Anhydride And Soybean Oil
CAS No.	66071-56-5
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Polymeric Mixture)
Synonyms	Alkyd resin from dehydrated castor oil, soybean oil, glycerol, pentaerythritol, and phthalic anhydride; Modified alkyd resin; DCO-Soybean oil alkyd; Vegetable oil alkyd resin; Polymeric plasticizer; Phthalic anhydride-glycerol-pentaerythritol-dehydrated castor oil-soybean oil copolymer; DCO/soya alkyd; CAS 66071-56-5
EINECS	Contact for details

Quality Control

Our alkyd resin products are manufactured under a strict quality management system. Each batch undergoes comprehensive testing for critical parameters such as acid value, viscosity, color, and solids content to ensure consistent performance and batch-to-batch uniformity. 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 material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat sources and open flames. For long-term storage, consider blanketing with an inert gas such as nitrogen to prevent skin formation and oxidative degradation.

Specification

Item	Specification
Appearance	Viscous liquid, clear to slightly hazy
Color (Gardner)	≤ 8
Acid Value (mg KOH/g)	≤ 10
Viscosity (Gardner-Holdt)	Z2 - Z5
Non-Volatile Matter (%)	70 ± 2
Solvent (Typical)	Mineral spirits / Xylene
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.