KURARAY POVAL 47-88

KURARAY POVAL 47-88 is a non-ionic polymer with high viscosity, offering excellent film-forming ability, strong adhesion, and high cohesion.
KURARAY POVAL 47-88 provides wetting properties on polar substances, good pigmentability, adhesiveness, low ash & VOC content and emulsifying property.
KURARAY POVAL 47-88 features water-solubility, excellent film forming characteristics, high tensile strength and elasticity, as well as resistance against organic solvents and dispersing power.

CAS Number: 9002-89-5
EC Number: 200-778-4
Chemical Formula: (C2H4O)n

Synonyms: Polyvinyl alcohol, PVA, PVOH, Poly(vinyl alcohol), Vinyl alcohol polymer, Polyethenol, Hydrolyzed polyvinyl acetate, Partially hydrolyzed PVA, PVAL, Elvanol, Gohsenol, Mowiol, Airvol, Selvol, Alcotex

KURARAY POVAL 47-88 is a water-soluble, partially hydrolyzed polyvinyl alcohol (PVOH) resin produced by Kuraray.
KURARAY POVAL 47-88 is a non-ionic polymer with high viscosity, offering excellent film-forming ability, strong adhesion, and high cohesion.
KURARAY POVAL 47-88 is designed for applications requiring very high viscosity, enhanced mechanical strength, and stable performance in aqueous systems.

KURARAY POVAL 47-88 is the brand name of Kuraray’s globally produced polyvinyl alcohol (PVOH).
KURARAY POVAL 47-88 features an extremely wide-ranging field of applications.

The main uses are in the paper, adhesive, textile and construction industries, as well as in ceramics, packaging and electronics.
The physical and chemical properties make PVOH very versatile.
KURARAY POVAL 47-88 features water-solubility, excellent film forming characteristics, high tensile strength and elasticity, as well as resistance against organic solvents and dispersing power.

KURARAY POVAL 47-88 is a partially saponified polyvinyl alcohol (PVOH) grade by Kuraray.
KURARAY POVAL 47-88 provides good bonding strength and pigment binding capacity.

KURARAY POVAL 47-88 possesses good cohesion and adhesion to fibers, fillers and pigments.
KURARAY POVAL 47-88 is suitable for modification of emulsion adhesives and remoistenable adhesives in the paper processing industry.

Aqueous solution of KURARAY POVAL 47-88 can be added to polymer emulsion which is already stabilized with polyvinyl alcohol to extend the open time, increase setting speed and influence the rheology.
KURARAY POVAL 47-88 is designed for use in postage stamps and labels.

KURARAY POVAL 47-88 is a partially saponified grade of polyvinyl alcohol.
KURARAY POVAL 47-88 is supplied as fine powder/granules with defined grain size.

KURARAY POVAL 47-88 is recommended for a variety of uses, ranging from emulsion polymerization aids to binders for pigments in paper applications.
KURARAY POVAL 47-88 has a viscosity of 45.0 - 49.0 mPa.s.

KURARAY POVAL 47-88 is a partially saponified polyvinyl alcohol (PVA) grade by Kuraray.
KURARAY POVAL 47-88 exhibits excellent water solubility, strong film-forming properties and oil & grease resistance.

KURARAY POVAL 47-88 provides wetting properties on polar substances, good pigmentability, adhesiveness, low ash & VOC content and emulsifying property.
KURARAY POVAL 47-88 is suitable for processing by injection molding and blown or flat film extrusion.

KURARAY POVAL 47-88 is used as adhesive promoters and protective colloids.
KURARAY POVAL 47-88 possible applications include adhesives, specialty papers, building materials (additive for mortar, cement etc.), polymerization (emulsion/suspension), temporary binders for ceramics, gas barrier coating, textiles sizing and fluid loss control in oil well cementing.

KURARAY POVAL 47-88 is a solid adhesion promoter used in adhesives, tapes, and paper packaging applications.
KURARAY POVAL 47-88 provides excellent adhesion to paper labels, enhancing the bonding strength in various industrial additive formulations.

Uses of KURARAY POVAL 47-88:
KURARAY POVAL 47-88 is widely used in water-based adhesive systems as a primary adhesive material, providing very strong bonding performance and high viscosity control.
KURARAY POVAL 47-88 is commonly applied in remoistenable adhesive formulations such as envelopes, labels, and paper converting products due to its excellent film-forming and cohesive properties.
KURARAY POVAL 47-88 also functions as a protective colloid in emulsion polymerization, stabilizing polymer dispersions, and is used as a binder for pigments, fillers, and fibers in coatings and paper applications, particularly in systems requiring very high viscosity and superior film strength.

Applications of KURARAY POVAL 47-88:
Abrasives
Adhesive
Building materials
Ceramics
Cosmetics
Protective colloid in emulsion polymerization
Food packaging
Paper
PVC production and compounding
Textiles
Thermoplastic processing
Oil field cementing
Glass fiber

Characteristics of KURARAY POVAL 47-88:

Solubility:
KURARAY POVAL 47-88 dissolves in water.
The higher the water temperature, the quicker the rate of dissolution.

These products have extremely high oil resistance, and are insoluble in most organic solvents.
However, they dissolve in certain organic solvents such as glycols, DMSO and phenol.

Acid and alkaline resistant:
These materials are mostly unaffected under weak acid or alkaline conditions.

Thermal stability:
The melting point and temperature at which KURARAY POVAL 47-88 starts thermal decomposition are close together, with gradual decomposition at 180ºC or higher.

Film-forming:
Easily converted to threads or films, and the physical properties, including tensile strength, tear strength and abrasion strength, are excellent compared with other synthetic resins.

Hygroscopicity:
Lower hygroscopicity than other water-soluble polymers, and any changes caused by varying humidity are relatively minor.

Stability and Reactivity of KURARAY POVAL 47-88:

Chemical stability:
Stable.

Reactivity:
Low.
Avoid strong oxidizing agents.

Conditions to avoid:
Heat.
Ignition sources.
Moisture.
Dust formation.

Incompatible materials:
Strong oxidizers.

Hazardous decomposition:
Carbon monoxide (CO) may form.
Carbon dioxide (CO₂) may be generated.
Irritating fumes may be released.

Handling and Storage of KURARAY POVAL 47-88:

Handling:
Avoid dust inhalation.
Avoid eye contact.
Use good industrial hygiene practices.

Storage:
Store in a cool, dry, and well-ventilated place.
Keep container tightly closed.

First Aid Measures of KURARAY POVAL 47-88:

Inhalation:
Move to fresh air.

Skin contact:
Rinse thoroughly with water.

Eye contact:
Rinse thoroughly with water.

Ingestion:
Rinse mouth.
Seek medical advice if necessary.

Firefighting Measures of KURARAY POVAL 47-88:

Suitable extinguishing media:
Water spray.
Foam.
Carbon dioxide (CO₂).
Dry chemical.

Hazards:
Dust explosion risk may be present.
Toxic fumes may be released during combustion.

Protection:
Use self-contained breathing apparatus.

Accidental Release Measures of KURARAY POVAL 47-88:

Precautions:
Avoid dust generation.
Ensure adequate ventilation.

Cleanup:
Sweep or vacuum spilled material.
Collect into suitable containers.

Exposure Controls / Personal Protection of KURARAY POVAL 47-88:

Ventilation:
Provide adequate ventilation.

Personal protective equipment:
Use gloves.
Use safety glasses.
Use dust mask or respirator if needed.

Identifiers of KURARAY POVAL 47-88:
Product name: KURARAY POVAL 47-88
Chemical name: Polyvinyl alcohol
Synonyms: Poly(vinyl alcohol), PVA, PVOH
CAS number: 9002-89-5
EC number: 200-778-4
Chemical formula: (C₂H₄O)n
Chemical type: Partially hydrolyzed polyvinyl alcohol
Grade designation: 47-88 (≈47 mPa·s, ~88% hydrolysis)

Properties of KURARAY POVAL 47-88:
Appearance: White to off-white powder or granules
Odor: Odorless
Solubility: Soluble in water; insoluble in most organic solvents
pH (4% solution): Approximately 5–7
Viscosity (4% solution): ~47 mPa·s
Degree of hydrolysis: ~86.5–89.0 mol%
Density: ~1.2–1.3 g/cm³
Melting point: Decomposes before melting (~180–230°C)
Film forming: Excellent film-forming properties
Ionic character: Non-ionic
Moisture sensitivity: Hygroscopic