Description

Linseed Oil/ Phthalic Anhydride/ Trimethylolpropane CAS NO 68553-56-0 is a specialized chemical intermediate, representing a pre-reacted or modified alkyd resin precursor. This compound is engineered to deliver enhanced processing efficiency and performance consistency in resin synthesis. It is primarily required by manufacturers in the coatings, adhesives, and polymer industries seeking to streamline production and achieve specific material properties.

Application

• Alkyd Resin Production: A key raw material for formulating high-performance, fast-drying alkyd resins used in industrial and architectural paints and varnishes.
• Polyester Resins: Serves as a building block in the manufacture of unsaturated polyester resins for fiberglass-reinforced plastics (FRP) and automotive parts.
• Coating & Ink Formulations: Used to develop specialized coatings with improved flexibility, adhesion, and chemical resistance for metal, wood, and plastic substrates.
• Adhesive & Sealant Systems: Imparts durability and weather resistance in the formulation of high-strength industrial adhesives and sealants.
• Plasticizer & Stabilizer Intermediate: Acts as a precursor in the synthesis of specialized plasticizers and stabilizers for PVC and other polymers.

Basic Information

Product Name	Linseed Oil/ Phthalic Anhydride/ Trimethylolpropane
CAS No.	68553-56-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Alkyd resin intermediate; TMP-Phthalic-Linseed adduct; Trimethylolpropane phthalate linseed oil ester; Modified polyester polyol; Linseed oil modified TMP phthalate; Polyester resin precursor; Fatty acid modified TMP phthalic ester
EINECS	Contact for details

Quality Control

Our Linseed Oil/ Phthalic Anhydride/ Trimethylolpropane is produced under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in acid value, hydroxyl value, viscosity, and color. Certificates of Analysis (COA) documenting these parameters are available upon request to 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/59-77°F). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. Isolate from strong oxidizing agents.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 6
Acid Value (mg KOH/g)	≤ 10
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	Contact for details
Solid Content (%)	Contact for details

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