Description

Vinyl Acetal Polymers, Butyrals, Sulfonated, Sodium Salt is a specialized, water-soluble polymer derivative of polyvinyl butyral, functionalized with sulfonate groups in their sodium salt form. This chemical modification imparts enhanced ionic character and water compatibility, making it a valuable component for applications requiring film-forming, binding, or dispersing properties in aqueous systems. Key industries that utilize this polymer include coatings, adhesives, and specialty chemical formulations where controlled solubility and ionic interaction are critical.

Application

• As a film-forming agent and binder in water-based industrial and protective coatings.
• As a dispersing aid and stabilizer for pigments and inorganic fillers in aqueous suspensions.
• As a key component in adhesive formulations, particularly for paper, textiles, and non-woven materials.
• In the production of specialty membranes and separation media that benefit from ionic functionality.
• As an encapsulation matrix or coating agent in agrochemical and pharmaceutical controlled-release systems.
• For modifying the rheology and processing characteristics of aqueous polymer blends and composites.

Basic Information

Product Name	Vinyl Acetal Polymers, Butyrals, Sulfonated, Sodium Salt
CAS No.	68441-08-7
Molecular Formula	(C8H14O2.C4H6O2.C2H4O3S.Na)x
Molecular Weight	Polymer - Variable
Synonyms	Sulfonated Polyvinyl Butyral Sodium Salt; Poly(vinyl butyral-co-vinyl alcohol-co-vinyl sulfonate sodium salt); PVB Sulfonate Sodium Salt; Butyraldehyde-Ethenol Polymer Sulfonated Sodium Salt; Sodium Sulfonated Polyvinyl Butyral; Sulfonated PVB Na Salt; Vinyl Butyral Sulfonate Polymer Sodium Salt; Aqueous PVB Sulfonate
EINECS	Contact for details

Quality Control

Our Vinyl Acetal Polymers, Butyrals, Sulfonated, Sodium Salt is manufactured under a stringent quality management system. Each batch undergoes rigorous testing for key parameters including sulfonation degree, sodium content, viscosity, solids content, and residual solvents to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these 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	White to off-white powder or granules
Solids Content	≥ 95.0 %
Sulfonation Degree	5 - 15 mol%
Sodium Content	3 - 8 %
Viscosity (10% in H2O, 25°C)	50 - 500 mPa·s
pH (5% aqueous solution)	6.0 - 8.5
Moisture Content (Karl Fischer)	≤ 5.0 %
Identification (IR)	Conforms

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