Description

Dodecylmethylsiloxane-Hydroxypolyalkyleneoxypropyl Methylsiloxane Copolymer is a specialized organosilicon surfactant and copolymer designed for advanced formulation stability. This compound matters because it provides exceptional emulsifying, wetting, and dispersing properties, bridging the performance gap between silicone and organic phases. Industries requiring high-performance surface modification, such as personal care, coatings, and agrochemicals, need this product to enhance the efficacy and stability of their complex formulations.

Application

• Personal Care & Cosmetics: Acts as a key emulsifier and stabilizer in creams, lotions, sunscreens, and color cosmetics, providing a smooth, non-greasy feel and improving water resistance.
• Coatings & Inks: Used as a flow control agent, anti-cratering additive, and pigment dispersant to improve substrate wetting, leveling, and final film appearance.
• Agrochemical Formulations: Enhances the spreading, adhesion, and rainfastness of pesticide and herbicide sprays, improving foliar coverage and biological efficacy.
• Polyurethane Foam Production: Serves as a cell opener and stabilizer in flexible foam manufacturing, ensuring uniform cell structure and preventing shrinkage.
• Industrial Cleaners & Polishes: Provides superior detergency, foam control, and surface gloss in automotive and hard surface cleaner formulations.
• Textile & Fiber Processing: Utilized as a softener, lubricant, and anti-static agent to improve the handle and processing of synthetic fibers and fabrics.

Basic Information

Product Name	Dodecylmethylsiloxane-Hydroxypolyalkyleneoxypropyl Methylsiloxane Copolymer
CAS No.	145686-74-4
Molecular Formula	Typically a complex copolymer; Contact for details
Molecular Weight	Varies by grade and alkyleneoxy content
Synonyms	Polyalkyleneoxide modified heptamethyltrisiloxane; Silicone polyether copolymer; Alkylmethylsiloxane-polyalkylene glycol copolymer; Organomodified trisiloxane; Polyether-modified silicone surfactant; Hydroxy-functional silicone copolymer; Silicone glycol copolymer; Polyalkylene glycol grafted siloxane
EINECS	Contact for details

Quality Control

Our Dodecylmethylsiloxane-Hydroxypolyalkyleneoxypropyl Methylsiloxane Copolymer is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including assay, viscosity, and hydroxyl value determination. A comprehensive Certificate of Analysis (COA) documenting purity, key physical properties, and conformance to agreed specifications is provided with each shipment.

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 absorption of atmospheric moisture, which can affect product performance. Keep away from strong alkalis and incompatible materials.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	100 - 500 mPa·s (cP)
Specific Gravity @ 25°C	0.95 - 1.05
Refractive Index @ 20°C	1.440 - 1.460
Water Content (Karl Fischer)	≤ 1.0 %
Hydroxyl Value (mg KOH/g)	As per grade requirement
Assay (Siloxane Content)	≥ 95.0 %

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