Description

1,3-Isobenzofurandione, Polymer With 1,2,3-Propanetriol is a high-performance polymeric resin, specifically a glycerol phthalate, known for its excellent film-forming and adhesive properties. This compound is a critical intermediate and functional material valued for its ability to enhance durability and chemical resistance in various formulations. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and specialty polymer industries seeking reliable and consistent raw materials for advanced material science applications.

Application

• Coatings & Paints: Acts as a key resin component in the formulation of high-quality industrial and protective coatings, contributing to film hardness and weather resistance.
• Adhesives & Sealants: Serves as a polymeric binder and tackifier, improving adhesion strength and flexibility in both solvent-based and hot-melt adhesive systems.
• Polymer Modification: Used as a plasticizer or cross-linking agent to modify the physical properties of other polymers, enhancing flexibility and processability.
• Printing Inks: Employed in specialty printing inks to improve gloss, adhesion to substrates, and drying characteristics.
• Composite Materials: Functions as a matrix resin or sizing agent in fiber-reinforced composites for the automotive and construction sectors.
• Electrical Insulation: Utilized in the production of insulating varnishes and compounds for electrical components due to its good dielectric properties.

Basic Information

Product Name	1,3-Isobenzofurandione, Polymer With 1,2,3-Propanetriol
CAS No.	26655-24-3
Molecular Formula	(C11H10O5)n
Molecular Weight	Variable (Polymer)
Synonyms	Glycerol Phthalate Resin; Phthalic Anhydride-Glycerol Polymer; Glyptal Resin; Alkyd Resin (Type A); Poly(glyceryl phthalate); 1,2,3-Propanetriol polymer with 1,3-Isobenzofurandione; Phthalic Acid Glycerol Polymer; Glycerophthalic Resin
EINECS	Contact for details

Quality Control

Our 1,3-Isobenzofurandione, Polymer With 1,2,3-Propanetriol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in properties such as acid value, viscosity, and molecular weight distribution. Certificates of Analysis (COA) documenting these specifications 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous resin or solid
Acid Value	≤ 10 mg KOH/g
Viscosity (Gardner-Holdt)	Z2 - Z5
Softening Point (Ring & Ball)	60 - 90 °C
Color (Gardner)	≤ 6
Moisture Content	≤ 0.5 %
Identification (IR)	Conforms

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