Description

5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with (chloromethyl)oxirane, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 4,4'-(1-methylethylidene)bis[phenol] is a specialized polymeric resin designed for high-performance applications. This compound, with CAS number 132435-12-2, matters for its unique combination of chemical resistance and structural integrity derived from its multi-component synthesis. It is primarily needed by manufacturers in the advanced coatings, specialty adhesives, and electronics encapsulation industries seeking durable, tailored polymer matrices.

Application

• Advanced Industrial Coatings: Used as a key resin component in high-durability protective coatings for metal, concrete, and composite substrates.
• Specialty Adhesives & Sealants: Serves as a polymeric backbone in formulations requiring excellent chemical resistance and strong adhesion under harsh environmental conditions.
• Electronic Encapsulation & Potting: Employed for protecting sensitive electronic components from moisture, dust, and chemical exposure.
• Composite Material Manufacturing: Acts as a matrix resin in fiber-reinforced plastics (FRP) and other composite systems.
• High-Performance Inks: Utilized in the formulation of inks for demanding applications such as circuit board printing or industrial marking.
• Functional Additive Carrier: Can be engineered to act as a delivery system or carrier for other functional additives in polymer blends.

Basic Information

Product Name	5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with (chloromethyl)oxirane, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 4,4'-(1-methylethylidene)bis[phenol]
CAS No.	132435-12-2
Molecular Formula	(C9H4O5 · C3H5ClO · (C4H8O)nH2O · C15H16O2)x (Polymeric)
Molecular Weight	Polymer - Variable (Contact for details)
Synonyms	Epoxy-modified poly(phthalic anhydride-co-bisphenol A) resin; Poly(phthalic anhydride-co-epichlorohydrin-co-polytetrahydrofuran-co-bisphenol A); BPA/Epichlorohydrin/PTMG/Phthalic Anhydride Copolymer; Epoxy-Polyester Hybrid Resin; Thermosetting Polyester-Epoxy Copolymer; CAS 132435-12-2 Polymer; Modified Epoxy Resin with Polyester Blocks
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems. Each batch undergoes comprehensive analysis to ensure consistency in key parameters such as viscosity, epoxy equivalent weight (EEW), hydroxyl value, and thermal properties. Certificates of Analysis (COA) detailing these specifications are provided and can be tailored to meet specific customer or regulatory requirements.

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, open flames, and incompatible materials such as strong acids, bases, and oxidizing agents. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 4
Viscosity (at 25°C)	Specified range per grade
Epoxy Equivalent Weight (EEW)	Specified range per grade
Hydroxyl Value (mg KOH/g)	Specified range per grade
Acid Value (mg KOH/g)	≤ 5.0
Non-Volatile Content (%)	≥ 98.0
Glass Transition Temperature (Tg)	Specified range per grade

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