Description

2-Propenoic Acid, 2-Methyl-, Hexadecyl Ester, Polymer With Octadecyl 2-Methyl-2-Propenoate is a high-performance copolymer of long-chain alkyl methacrylates, specifically cetyl and stearyl methacrylate, designed to deliver exceptional film-forming and water-repellent properties. This polymer is a critical raw material for formulators seeking to enhance the durability, feel, and protective characteristics of their products. It is primarily utilized in the production of advanced industrial coatings, personal care formulations, and specialty additives where surface modification and rheology control are paramount.

Application

• Industrial Coatings & Paints: Acts as a key film-forming agent and rheology modifier in solvent-based and high-solids coatings, improving gloss, scratch resistance, and water repellency.
• Personal Care & Cosmetics: Used in sunscreens, color cosmetics, and skincare products as a water-resistant film former, providing long-lasting wear and a smooth, non-greasy feel.
• Textile & Leather Finishes: Imparts durable water and stain repellency to fabrics and leather goods, enhancing their performance and longevity.
• Printing Inks: Serves as a binder and leveling agent, improving ink adhesion, rub resistance, and print quality on various substrates.
• Adhesives & Sealants: Functions as a tackifier and flexibility enhancer, contributing to improved bond strength and environmental resistance.
• Plastic & Rubber Additives: Used as a processing aid and external lubricant to improve mold release and surface finish.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, Hexadecyl Ester, Polymer With Octadecyl 2-Methyl-2-Propenoate
CAS No.	29316-77-6
Molecular Formula	(C20H38O2)x·(C22H42O2)y
Molecular Weight	Variable (Polymer)
Synonyms	Poly(Cetyl Stearyl Methacrylate); Cetyl Stearyl Methacrylate Copolymer; Alkyl Methacrylate Copolymer (C16-18); CAS 29316-77-6; Methacrylic Acid, Hexadecyl Ester, Polymer with Octadecyl Methacrylate; Long-Chain Alkyl Methacrylate Polymer; (C16/C18) Alkyl Methacrylate Copolymer
EINECS	Contact for details

Quality Control

Our production of Cetyl Stearyl Methacrylate Copolymer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including monomer ratio, molecular weight distribution, viscosity, and residual monomer content. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to support your quality assurance protocols.

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). Keep away from heat sources and open flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white flakes or powder
Identification (IR)	Complies
Assay (as Polymer)	≥ 98.0 %
Viscosity (Solution)	Contact for details
Molecular Weight (Mw)	Contact for details
Residual Monomer	≤ 0.5 %
Melting Point	45 - 60 °C
Acid Value	≤ 1.0 mg KOH/g

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