Description

Fatty Acids, Tall-Oil, Polymers With 3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropanoic Acid, 3A,4,7,7A-Tetrahydro-1,3-Isobenzofurandione And Trimethylolpropane is a specialized polymeric resin derived from tall oil fatty acids, a renewable resource, and key monomers including trimethylolpropane. This product matters as a versatile intermediate designed to impart flexibility, adhesion, and chemical resistance in high-performance coatings and composites. It is primarily needed by formulators in the paints & coatings, adhesives, and industrial resin sectors seeking sustainable and robust polymeric backbones.

Application

• Alkyd Resins for Industrial Coatings: Serves as a key polyol component in air-drying and baking alkyd resins, providing excellent flexibility and durability for metal primers and finishes.
• Polyester Resins for Composites: Used in the synthesis of unsaturated polyester resins (UPR) for fiberglass-reinforced plastics (FRP) in automotive and marine applications.
• Adhesive & Sealant Formulations: Imparts tack, adhesion, and water resistance in pressure-sensitive adhesives (PSAs) and construction sealants.
• Polyurethane Dispersions (PUDs): Acts as a building block for waterborne polyurethane resins used in leather finishing, textile coatings, and wood finishes.
• Printing Inks: Utilized in resin vehicles for lithographic and flexographic inks to enhance gloss, flow, and substrate wetting.
• Corrosion Inhibitive Primers: Forms part of the resin system in primers designed for long-term protection of steel and other metals.

Basic Information

Product Name	Fatty Acids, Tall-Oil, Polymers With 3-Hydroxy-2-(Hydroxymethyl)-2-Methylpropanoic Acid, 3A,4,7,7A-Tetrahydro-1,3-Isobenzofurandione And Trimethylolpropane
CAS No.	103819-36-9
Molecular Formula	Complex Polymer - Contact for details
Molecular Weight	Varies by grade - Contact for details
Synonyms	Tall oil fatty acid polymer with trimethylolpropane and other monomers; TOFA-trimethylolpropane copolymer; Polymeric polyol from tall oil; Alkyd resin intermediate; Tall oil polyester polyol; Fatty acids, tall-oil, polymers with 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, hexahydro-1,3-isobenzofurandione and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol; Resin, tall oil fatty acid - trimethylolpropane type
EINECS	Contact for details

Quality Control

Our production of this polymeric resin adheres to strict quality management protocols to ensure batch-to-batch consistency for demanding industrial applications. Key parameters such as acid value, hydroxyl value, viscosity, and color are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flames. Under these conditions, the product is typically stable for at least 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid, clear to amber
Acid Value (mg KOH/g)	≤ 10.0
Hydroxyl Value (mg KOH/g)	To be specified per grade
Viscosity (at 25°C, mPa·s)	To be specified per grade
Color (Gardner)	≤ 6
Solid Content (%)	To be specified per grade
Identification (IR)	Conforms

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