Description

Siloxanes And Silicones, Di-Me, Polymers With Me Silsesquioxanes And Polyethylene-Polypropylene Glycol Ether With Ethylene Glycol (2:1), Block is a specialized organosilicon block copolymer designed to deliver unique surface-active and compatibilizing properties. This advanced material is engineered to bridge the performance gap between silicone oils and organic polymers, offering exceptional versatility. It is a critical component for formulators in the personal care, coatings, and specialty chemical industries seeking to enhance product performance, stability, and feel.

Application

• Personal Care & Cosmetics: Acts as a high-performance emollient, sensory modifier, and stabilizer in skin creams, lotions, sunscreens, and color cosmetics to improve spreadability and provide a silky, non-greasy feel.
• Industrial & Protective Coatings: Functions as a flow and leveling agent, slip additive, and mar-resistance aid in solvent-based and high-solid coatings, improving surface finish and durability.
• Polymer Modification & Additives: Serves as a compatibilizer and processing aid in polymer blends, particularly for modifying the surface properties of thermoplastics and reducing friction.
• Release Agents & Lubricants: Used in formulating non-stick release coatings for industrial molding and as a component in specialty lubricants requiring thermal stability and water repellency.
• Textile & Fiber Treatment: Imparts softness, hydrophobicity, and lubricity to fibers and fabrics in finishing applications.
• Adhesives & Sealants: Enhances wetting, adhesion, and weatherability in high-performance silicone-modified organic sealants and adhesives.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, Polymers With Me Silsesquioxanes And Polyethylene-Polypropylene Glycol Ether With Ethylene Glycol (2:1), Block
CAS No.	114697-02-8
Molecular Formula	Contact for details
Molecular Weight	Variable polymer
Synonyms	Dimethylsiloxane-methylsilsesquioxane-poly(ethylene glycol-propylene glycol) block copolymer; Polyether-modified silicone block copolymer; Silicone polyether block copolymer; PEG/PPG-modified polysiloxane; Methylsilsesquioxane-dimethylsiloxane copolymer with polyoxyalkylene; Organomodified silicone; Silicone glycol copolymer; AB-type block copolymer of silicone and polyether
EINECS	Contact for details

Quality Control

Our production of this block copolymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as silicone content, polyether block ratio, viscosity, and refractive index are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing the specific specifications for your ordered grade is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product properties. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Color (Gardner)	≤ 2
Viscosity (25°C)	500 - 5000 mPa·s (Grade dependent)
Specific Gravity (25°C)	0.98 - 1.05
Refractive Index (25°C)	1.440 - 1.460
Water Content (Karl Fischer)	≤ 0.5%
Silicone Content	Contact for details
pH (5% in water/isopropanol)	5.0 - 7.0

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