Description

Castor Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Trimethylolpropane is a specialized alkyd resin derived from renewable castor oil, offering a unique combination of flexibility, adhesion, and chemical resistance. This polymer is engineered to provide superior performance as a film-forming agent and reactive intermediate in demanding industrial formulations. It is essential for manufacturers in the coatings, adhesives, and specialty chemical industries seeking bio-based components with enhanced durability.

Application

• High-Performance Coatings: Used as a key resin in air-drying and baking enamels, providing excellent gloss, flexibility, and adhesion to metal, wood, and plastic substrates.
• Industrial Adhesives & Sealants: Acts as a tackifying and flexibilizing agent in structural adhesives, pressure-sensitive adhesives (PSAs), and sealants.
• Printing Inks: Serves as a vehicle resin in flexographic and gravure inks, contributing to good pigment wetting, gloss, and rub resistance.
• Plasticizers & Modifiers: Functions as a polymeric plasticizer or modifier for other resins (e.g., PVC, nitrocellulose) to improve low-temperature flexibility and durability.
• Corrosion-Resistant Primers: Formulated into primers and maintenance coatings where its chemical resistance protects against moisture and mild chemical exposure.
• Specialty Polymers: Utilized as a polyol component in the synthesis of polyurethanes, contributing to the bio-content and hydrolytic stability of the final polymer.

Basic Information

Product Name	Castor Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Trimethylolpropane
CAS No.	68604-17-1
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Castor oil alkyd resin; Pentaerythritol phthalic alkyd resin, modified with castor oil and trimethylolpropane; Alkyd resin from castor oil, pentaerythritol, phthalic anhydride, and trimethylolpropane; TMP-modified castor oil alkyd; Polymeric plasticizer from castor oil; CASTOR OIL, POLYMER with PENTAERYTHRITOL, PHTHALIC ANHYDRIDE and TRIMETHYLOLPROPANE; 68604-17-1
EINECS	Contact for details

Quality Control

Our production of Castor Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Trimethylolpropane adheres to stringent quality management protocols. Each batch undergoes rigorous testing for critical parameters including acid value, hydroxyl 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 to support your quality assurance processes.

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 strong bases and incompatible organic solvents. As the product can be easily oxidized, containers should be kept tightly sealed when not in use to minimize exposure to air. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous pale yellow to amber liquid
Acid Value (mg KOH/g)	≤ 10.0
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (Gardner-Holdt, 25°C)	Z2 - Z6 (Grade dependent)
Color (Gardner)	≤ 6
Non-Volatile Matter (%)	70 ± 2
Solvent	Typically Xylene / Aromatic 100

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