Description

Ethanaminium, N,N,n-Trimethyl-2-(2-Methyl-1-Oxo-2-Propenyl)Oxy-, Chloride, Polymer With Butyl 2-Methyl-2-Propenoate is a specialized cationic copolymer designed to deliver superior performance as a film-forming agent and conditioning polymer. This product matters for formulators seeking to enhance the substantivity, manageability, and long-lasting effects of personal care and cosmetic products. It is primarily needed by manufacturers of hair care formulations, such as conditioners, styling gels, and mousses, where it provides excellent detangling, anti-static, and hold properties.

Application

• Hair Conditioners & Treatments: As a primary cationic conditioning agent to improve wet combing, reduce static, and impart softness and shine.
• Styling Products: Used in gels, mousses, and creams to provide flexible hold, curl definition, and humidity resistance.
• 2-in-1 Shampoos: Functions as a deposition polymer to deliver conditioning benefits from a cleansing base.
• Leave-in Treatments: Provides long-lasting conditioning, detangling, and heat protection for hair.
• Skin Care Lotions: Acts as a mild cationic emulsifier and skin-feel enhancer in certain cream formulations.
• Color Care Products: Helps protect hair color by forming a protective film, improving color retention and vibrancy.

Basic Information

Product Name	Ethanaminium, N,N,n-Trimethyl-2-(2-Methyl-1-Oxo-2-Propenyl)Oxy-, Chloride, Polymer With Butyl 2-Methyl-2-Propenoate
CAS No.	41302-98-1
Molecular Formula	(C9H18ClNO2.C8H14O2)x
Molecular Weight	Polymer - varies by grade
Synonyms	Polyquaternium-28; PQ-28; Butyl Methacrylate/Methacryloyloxyethyltrimethylammonium Chloride Copolymer; Methacryloyloxyethyltrimethylammonium Chloride / Butyl Methacrylate Copolymer; Quaternium-49; Poly(butyl methacrylate-co-(2-(methacryloyloxy)ethyl)trimethylammonium chloride); Acrylic Cationic Copolymer; Merquat 280
EINECS	Contact for details

Quality Control

Our Polyquaternium-28 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including cationic charge density, viscosity, solids content, residual monomers, and microbiological purity to ensure consistent performance and safety for cosmetic use. Certificates of Analysis (COA) documenting full specifications are available upon request.

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). Keep the container tightly sealed when not in use to prevent moisture absorption, which may affect product properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Assay (Solid Content)	Contact for details
pH (as is or in solution)	Contact for details
Viscosity	Contact for details
Cationic Charge Density	Contact for details
Residual Monomer (Methacrylate)	< 100 ppm
Identification (IR)	Conforms to structure
Heavy Metals (as Pb)	< 10 ppm
Microbiological Quality	Total Plate Count < 100 CFU/g

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