Description

1,3-Isobenzofurandione, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol And 1,2,3-Propanetriol, Benzoate Octadecanoate is a specialized polymeric ester derived from phthalic anhydride, pentaerythritol, glycerol, benzoic acid, and stearic acid. This complex polymer is engineered to deliver a unique balance of properties, including excellent film-forming capability, adhesion, and chemical resistance. It is a critical raw material for formulators in the coatings, adhesives, and specialty polymer industries seeking to enhance product performance and durability.

Application

• High-Performance Industrial Coatings: Acts as a key resin component in alkyd and polyester-based coatings, providing excellent gloss, hardness, and weatherability for automotive, marine, and machinery finishes.
• Adhesives and Sealants: Used as a tackifying and film-forming agent in solvent-based and hot-melt adhesive formulations, improving bond strength and flexibility.
• Printing Inks: Serves as a resin binder for specialty printing inks, contributing to good pigment wetting, print clarity, and substrate adhesion.
• Plastic Additives: Functions as a processing aid or modifier to improve the compatibility and surface characteristics of polymer blends and composites.
• Wood Finishes: A component in varnishes and lacquers for furniture and flooring, offering good drying characteristics and a durable protective film.
• Wire and Cable Coatings: Imparts flexibility and insulation properties in protective coatings for electrical components.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol And 1,2,3-Propanetriol, Benzoate Octadecanoate
CAS No.	124779-42-6
Molecular Formula	Polymeric substance; Contact for details
Molecular Weight	Polymeric substance; Contact for details
Synonyms	Poly(phthalic anhydride-co-pentaerythritol-co-glycerol benzoate stearate); Phthalic Anhydride/Pentaerythritol/Glycerol Benzoate Stearate Copolymer; Modified Polyester Resin; Alkyd Resin Modifier; Stearic Acid and Benzoic Acid Modified Polyester; Polyester Polyol Ester; Pentaerythritol-Glycerol Phthalic Alkyd; Benzoate Stearate Ester Polymer
EINECS	Contact for details

Quality Control

Our production of this polymeric ester adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, hydroxyl value, viscosity, and color are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are 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 flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 6
Acid Value (mg KOH/g)	≤ 10
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	Contact for details
Solids Content (%)	≥ 98.0

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