Description

1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 1,2-ethanediol and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) is a specialized polyester polyol copolymer, commonly recognized as a key intermediate in high-performance polymer synthesis. This material is engineered to impart specific flexibility, adhesion, and chemical resistance properties to final products, making it a critical component for advanced formulations. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of specialty polyurethanes and resins.

Application

• Polyurethane Elastomers and Foams: Serves as a reactive polyol component to tailor flexibility, resilience, and mechanical strength in flexible and rigid foam systems.
• High-Performance Coatings and Paints: Used in the synthesis of polyester resins for industrial, automotive, and protective coatings, enhancing durability, gloss, and chemical resistance.
• Adhesives and Sealants: Acts as a building block to improve adhesion, cohesion, and environmental stability in structural and specialty adhesive formulations.
• Thermoplastic Polyurethanes (TPU): A key intermediate for producing TPUs with specific soft segment characteristics for films, fibers, and molded parts.
• Resin Modification: Employed to modify the properties of other polymers, improving compatibility, toughness, and processing characteristics.
• Industrial and Composite Materials: Used in the manufacture of composite materials, binders, and encapsulants requiring tailored polymer properties.

Basic Information

Product Name	1,4-Benzenedicarboxylic acid, dimethyl ester, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 1,2-ethanediol and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl)
CAS No.	9074-67-3
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(ethylene glycol)-block-poly(butylene terephthalate)-block-poly(ethylene glycol); PEG-PBT-PEG copolymer; Poly(ethylene oxide)-b-poly(butylene terephthalate)-b-poly(ethylene oxide); Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,4-benzenedicarboxylic acid, dimethyl ester, 2,2-bis(hydroxymethyl)-1,3-propanediol and 1,2-ethanediol; Poly(ethylene glycol)-poly(butylene terephthalate) block copolymer; Hydrophilic-hydrophobic block copolymer based on PBT and PEG; Polyester polyol copolymer CAS 9074-67-3
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to rigorous quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, molecular weight distribution, and viscosity are strictly monitored. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We support compliance with relevant industry standards and can tailor quality protocols to meet specific customer 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). This product is hygroscopic (moisture-sensitive). To prevent moisture uptake and potential property changes, containers must be kept tightly sealed when not in use and consideration should be given to storage under a dry inert atmosphere for long-term holding.

Specification

Item	Specification
Appearance	White to off-white pellets or solid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content	≤ 0.5%
Viscosity (mPa·s @ specified temp.)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Molecular Weight (Mn)	Variable by grade

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