Description

1,1′-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]bis(2-propanol) polymer with 1,3-benzenedicarboxylic acid, 2,2′-oxybisethanol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, and 1,3-diisocyanatomethylbenzene is a high-performance, multi-component polyurethane or polyester-polyurethane hybrid polymer. This engineered material is valued for its tailored balance of flexibility, chemical resistance, and durability, making it a critical component in advanced coating and adhesive formulations. It is primarily sought by manufacturers in the industrial coatings, specialty adhesives, and composite materials sectors seeking to enhance product performance.

Application

• Industrial and Protective Coatings: Used as a key resin in high-performance coatings for metal, concrete, and plastic substrates, providing excellent weatherability and chemical resistance.
• Specialty Adhesives and Sealants: Serves as a base polymer in formulations requiring strong bonding, flexibility, and resistance to environmental stress.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composites to improve interlaminar strength and toughness.
• Elastomers and Castable Urethanes: Utilized in the production of flexible cast parts, rollers, and gaskets where a specific hardness and resilience profile is required.
• Automotive and Aerospace Interiors: Found in coatings and binders for interior components that demand low VOC emissions, durability, and aesthetic quality.
• Electrical Potting and Encapsulation: Provides protective insulation and environmental sealing for sensitive electronic components.

Basic Information

Item	Details
Product Name	1,1′-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]bis(2-propanol) polymer with 1,3-benzenedicarboxylic acid, 2,2′-oxybisethanol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, and 1,3-diisocyanatomethylbenzene
CAS No.	123701-48-4
Molecular Formula	Polymeric substance; contact for details
Molecular Weight	Polymeric substance; contact for details
Synonyms	Polyurethane resin based on bisphenol A ethoxylate, TMP, DEG, IPA, and MXDI; Polyester-polyurethane copolymer; MXDI-based polyurethane polymer; Bisphenol A ethoxylate (15 EO/phenol) polymer with isophthalic acid, diethylene glycol, trimethylolpropane, and m-xylylene diisocyanate; Urethane-modified polyester resin; Copolymer of bisphenol A ethoxylate diol, isophthalic acid, DEG, TMP, and MXDI; High-performance coating resin CAS 123701-48-4
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, hydroxyl value, isocyanate content, and glass transition temperature (Tg) are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment 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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 3
Viscosity (at 25°C)	Specification available upon request
Hydroxyl Value (mg KOH/g)	Specification available upon request
Acid Value (mg KOH/g)	≤ 2.0
Solid Content (%)	Specification available upon request
Glass Transition Temp (Tg)	Specification available upon request

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