Description

Linseed Oil/ Isophthalic/ Trimellitic/ Trimethylolpropane CAS NO 68553-50-4 is a specialized alkyd resin intermediate, synthesized from linseed oil fatty acids, isophthalic acid, trimellitic anhydride, and trimethylolpropane. This compound is engineered to deliver enhanced performance characteristics, including superior durability, chemical resistance, and flexibility in final coatings. It is a critical raw material for formulators in the protective coatings, industrial paints, and high-performance resin industries seeking to develop products with excellent weathering and adhesion properties.

Application

• Primary component in the formulation of high-quality, long-oil alkyd resins for industrial and architectural paints.
• Used in manufacturing corrosion-resistant protective coatings for marine, automotive, and structural steel applications.
• Key intermediate for producing flexible and durable binders in wood finishes and varnishes.
• Essential in the synthesis of specialty resins for printing inks, requiring good gloss and drying properties.
• Base for developing advanced coating systems with improved hydrolytic stability and weatherability.
• Used in the production of compliant coatings for industrial maintenance and heavy-duty equipment.

Basic Information

Product Name	Linseed Oil/ Isophthalic/ Trimellitic/ Trimethylolpropane
CAS No.	68553-50-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Alkyd resin, TMP-modified; Trimethylolpropane alkyd with linseed oil, isophthalic and trimellitic acids; Long oil alkyd resin intermediate; TMP ester of linseed fatty acids/isophthalic/trimellitic copolymer; Polyol ester resin; Coating resin intermediate; Linseed alkyd polyol; Isophthalic-trimellitic alkyd
EINECS	Contact for details

Quality Control

Our Linseed Oil/ Isophthalic/ Trimellitic/ Trimethylolpropane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in acid value, viscosity, color, and solids content, meeting the precise requirements of resin synthesis. Certificates of Analysis (COA) documenting all key parameters are provided with every shipment to guarantee product integrity and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flames. Under recommended storage conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 6
Acid Value (mg KOH/g)	≤ 10
Viscosity (Gardner-Holdt)	Z2 - Z5
Non-Volatile Matter	≥ 70%
Identification (IR)	Conforms

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