Description

1,3-Isobenzofurandione, Polymer With 2,2'-Oxybis[Ethanol] And 1,2-Propanediol CAS NO 128439-94-1 is a specialized polymeric material derived from phthalic anhydride, ethylene glycol, and propylene glycol. This polymer is engineered to offer a unique balance of properties, making it a valuable intermediate for advanced material synthesis. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty polymer industries for developing high-performance resins with tailored characteristics.

Application

• Alkyd Resin Modifier: Used to enhance the flexibility, adhesion, and drying properties of alkyd resins for industrial and decorative coatings.
• Polyester Polyol Synthesis: Serves as a key building block in the production of polyester polyols for polyurethane foams, elastomers, and adhesives.
• Plasticizer Intermediate: Acts as a precursor in the synthesis of polymeric plasticizers, offering improved permanence and compatibility with PVC and other polymers.
• Cross-linking Agent: Utilized in thermosetting resin formulations to improve cross-link density and thermal stability.
• Ink Vehicle Component: Incorporated into resin systems for printing inks to improve gloss, flow, and substrate adhesion.
• Adhesive Formulation: Enhances the performance of structural and pressure-sensitive adhesives by contributing to cohesive strength and environmental resistance.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 2,2'-Oxybis[Ethanol] And 1,2-Propanediol
CAS No.	128439-94-1
Molecular Formula	(C8H4O3 · C4H10O3 · C3H8O2)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Phthalic Anhydride-Ethylene Glycol-Propylene Glycol Copolymer; Poly(phthalic anhydride-co-ethylene glycol-co-propylene glycol); PEG-PPG Phthalate Copolymer; Phthalic Acid Glycol Ester Polymer; Alkyd Resin Precursor; Polyester Polyol Based on Phthalic Anhydride; Glycol Phthalate Polymer
EINECS	Contact for details

Quality Control

Our production of 1,3-Isobenzofurandione, Polymer With 2,2'-Oxybis[Ethanol] And 1,2-Propanediol adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent properties such as acid value, hydroxyl value, viscosity, and molecular weight distribution. Certificates of Analysis (COA) documenting these specifications are provided to guarantee compliance with your formulation requirements and industry standards.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product properties.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	As per grade
Viscosity (at 25°C, mPa·s)	As per grade
Water Content (Karl Fischer, %)	≤ 0.2
Identification (IR)	Conforms

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