Description

Pvm/Macopolymer,Ethylester CAS NO 54578-90-4 is a specialized copolymer of vinyl methyl ether and maleic anhydride, partially esterified with ethanol. This unique polymer structure provides excellent film-forming, adhesive, and stabilizing properties, making it a valuable functional additive in advanced formulations. It is primarily sought after by manufacturers in the pharmaceutical, personal care, and specialty coatings industries for its ability to modify rheology and enhance product performance.

Application

• Pharmaceutical Coatings: Used as a film-forming agent and binder in enteric and sustained-release tablet coatings.
• Hair Styling Products: Serves as a key fixative polymer in hair sprays, gels, and mousses, providing strong hold with good flexibility.
• Oral Care Films: Acts as a film-forming polymer in dissolvable oral strips for breath fresheners or pharmaceutical delivery.
• Adhesive Formulations: Employed as a tackifier and modifier in pressure-sensitive and specialty adhesive systems.
• Industrial Coatings: Functions as a rheology modifier and dispersant in water-based coatings and inks.
• Personal Care Emulsions: Used as a stabilizer and thickener in creams, lotions, and sun care products.

Basic Information

Product Name	Pvm/Macopolymer,Ethylester
CAS No.	54578-90-4
Molecular Formula	(C5H8O2·C4H4O3·C2H5O)x
Molecular Weight	Varies (Polymer)
Synonyms	PVM/MA Copolymer, Ethyl Ester; Poly(methyl vinyl ether-alt-maleic acid) monoethyl ester; Gantrez ES; Copolymer of methyl vinyl ether and maleic anhydride, monoethyl ester; 1-Ethoxy-1-oxo-4-[(2-oxooxolan-3-yl)oxy]-4-oxobut-2-en-2-yloxy group; PVM/MA EA; Methyl vinyl ether-maleic anhydride copolymer monoethyl ester
EINECS	259-234-3

Quality Control

Our Pvm/Macopolymer,Ethylester is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for viscosity, esterification degree, and residual solvents. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing key parameters to support your quality assurance protocols. We can supply grades suitable for industrial, cosmetic, and pharmaceutical applications, with documentation aligned to relevant standards.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as polymer)	≥ 95.0 %
Viscosity (solution)	Specified range
Degree of Esterification	Specified range
Loss on Drying	≤ 5.0 %
Residual Solvents	Meets ICH guidelines

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