Description

Siloxanes and Silicones, di-Me, methoxy Ph, polymers with Ph silsesquioxanes, methoxy-terminated, reaction products with adipic acid-1,6-hexanediol-isophthalic acid-neopentyl glycol-trimethylolpropane polymer is a specialized, high-performance hybrid polymer that combines the flexibility and thermal stability of silicones with the mechanical strength and adhesion properties of organic polyesters. This engineered material is critical for formulators seeking to enhance the durability, weatherability, and surface compatibility of advanced coatings and adhesives. It is primarily utilized in demanding industrial applications where long-term performance under harsh environmental conditions is a key requirement.

Application

• High-Performance Industrial Coatings: As a key resin or additive in coatings for automotive, aerospace, and marine applications to improve gloss retention, corrosion resistance, and UV stability.
• Specialty Adhesives and Sealants: Used to formulate adhesives with enhanced flexibility, thermal shock resistance, and adhesion to difficult substrates like plastics and treated metals.
• Protective Films and Release Liners: Acts as a critical component in silicone-release coatings for labels, tapes, and industrial films, offering controlled release properties.
• Electronic Encapsulants and Potting Compounds: Provides excellent electrical insulation, moisture resistance, and thermal management for protecting sensitive electronic components.
• Weather-Resistant Architectural Coatings: Imparts long-lasting protection and aesthetic qualities to exterior paints and coatings for buildings and infrastructure.
• Fiber and Textile Treatments: Used as a finishing agent to provide water repellency, softness, and durability to technical textiles and fibers.

Basic Information

Product Name	Siloxanes and Silicones, di-Me, methoxy Ph, polymers with Ph silsesquioxanes, methoxy-terminated, reaction products with adipic acid-1,6-hexanediol-isophthalic acid-neopentyl glycol-trimethylolpropane polymer
CAS No.	146905-75-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymer of adipic acid, hexanediol, isophthalic acid, neopentyl glycol, and trimethylolpropane, terminated with methoxy phenyl siloxane; Silicone-polyester hybrid resin; Methoxy phenyl silsesquioxane modified polyester; Phenyl silsesquioxane polyester copolymer; Silicone-modified alkyd resin (phenyl type); Hybrid silicone organic polymer; CAS 146905-75-1
EINECS	Contact for details

Quality Control

Our production of this advanced hybrid polymer adheres to a strict quality management system. Each batch is characterized for critical parameters including viscosity, solids content, functional group content, and thermal properties to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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/59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color (Gardner)	≤ 3
Solids Content	60 - 80 %
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	0.95 - 1.10
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	Contact for details

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