Description

Fatty acids, tall-oil, polymers with glycerol, pentaerythritol, phthalic anhydride and trimethylolpropane, reaction products with 1,3-benzenedimethanamine, TDI and tridecanol CAS NO 129539-21-5 is a high-performance, multi-functional polymeric resin designed for demanding industrial applications. This complex alkyd-urethane hybrid polymer offers a unique balance of flexibility, adhesion, and chemical resistance derived from its tailored composition. It is primarily utilized by formulators in the coatings, adhesives, and sealants industries seeking to enhance product durability and performance. The material's specific CAS number is 129539-21-5.

Application

• Industrial and Protective Coatings: As a key resin binder in high-performance paints and varnishes for metal, wood, and concrete, providing excellent weather resistance and adhesion.
• Adhesive Formulations: Used in the production of structural and assembly adhesives, where its strong bonding and flexibility are critical.
• Sealants and Caulks: Acts as a base polymer in flexible sealants for construction and automotive applications, offering durability and environmental resistance.
• Printing Inks: Employed in specialty ink formulations, particularly for overprint varnishes and inks requiring good substrate wetting and film properties.
• Plastic and Rubber Modification: Functions as a compatibilizer or additive to improve the impact resistance and processing of various polymer blends.
• Corrosion Inhibiting Primers: Serves as a film-forming agent in primer systems designed to protect metal surfaces from oxidation and chemical attack.

Basic Information

Product Name	Fatty acids, tall-oil, polymers with glycerol, pentaerythritol, phthalic anhydride and trimethylolpropane, reaction products with 1,3-benzenedimethanamine, TDI and tridecanol
CAS No.	129539-21-5
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Polymer Distribution)
Synonyms	Tall oil fatty acid alkyd resin modified with TDI and tridecanol; Urethane-modified tall oil alkyd resin; Polymer of tall oil fatty acids, glycerol, pentaerythritol, phthalic anhydride, trimethylolpropane, TDI, tridecanol, and m-xylylenediamine; TOFA-alkyd-urethane polymer; Alkyd-urethane hybrid resin; Reaction product of tall oil fatty acids with polyols, phthalic anhydride, TDI, and 1,3-benzenedimethanamine, capped with tridecanol
EINECS	Contact for details

Quality Control

Our production of this specialty polymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, acid value, hydroxyl value, and solids content are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. While produced for industrial use, our quality system is designed to support formulations requiring compliance with various regional standards for coatings and adhesives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from strong alkalis and incompatible organic solvents. The container must be kept tightly sealed when not in use to prevent skinning or moisture absorption.

Specification

Item	Specification
Appearance	Viscous liquid, clear to amber
Solids Content	60 - 80 %
Viscosity (at 25°C)	2000 - 8000 mPa·s
Acid Value	< 10 mg KOH/g
Hydroxyl Value	30 - 100 mg KOH/g
Color (Gardner)	< 12
Solvent (Typical)	Aromatic hydrocarbons / Esters

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