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KURARAY POVAL 13-88 is a non-ionic polymer designed for applications that require good cohesion, adhesion to fibers, fillers, and pigments, and reliable film-forming behavior.
KURARAY POVAL 13-88 is commonly applied in remoistenable adhesive systems such as envelopes, labels, and other paper converting products due to its reliable film-forming and bonding properties.
KURARAY POVAL 13-88 exhibits good cohesion and adhesion to fibers, fillers and pigments.
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 13-88 is a water-soluble, partially saponified polyvinyl alcohol (PVOH) grade produced by Kuraray.
KURARAY POVAL 13-88 is a non-ionic polymer designed for applications that require good cohesion, adhesion to fibers, fillers, and pigments, and reliable film-forming behavior.
KURARAY POVAL 13-88 grades broadly for paper, adhesives, textiles, construction, ceramics, packaging, and electronics, while product-specific listings describe 13-88 especially for emulsion adhesive modification, remoistenable adhesives, protective colloid emulsion polymerization, and PVOH film raw-material use.
KURARAY POVAL 13-88 is a partially saponified polyvinyl alcohol (PVOH) grade.
KURARAY POVAL 13-88 is suitable for modification of emulsion adhesives and remoistenable adhesives in the paper processing industry.
KURARAY POVAL 13-88 exhibits good cohesion and adhesion to fibers, fillers and pigments.
KURARAY POVAL 13-88 offers good bonding strength and pigment binding capacity.
Aqueous solution of KURARAY POVAL 13-88 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 13-88 has a shelf life of 12 months.
KURARAY POVAL 13-88 is globally produced polyvinyl alcohol (PVOH).
KURARAY POVAL 13-88 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 13-88 features water-solubility, excellent film forming characteristics, high tensile strength and elasticity, as well as resistance against organic solvents and dispersing power.
KURARAY POVAL 13-88 is a partially saponified grade of polyvinyl alcohol.
KURARAY POVAL 13-88 is supplied as fine powder/granules with defined grain size.
KURARAY POVAL 13-88 is recommended for a variety of uses, ranging from emulsion polymerization aids to binders for pigments in paper applications.
KURARAY POVAL 13-88 has a viscosity of 11.5 - 14.5 mPa.s.
Uses of KURARAY POVAL 13-88:
KURARAY POVAL 13-88 is widely used in emulsion adhesive formulations to enhance adhesion, viscosity control, and overall formulation stability.
KURARAY POVAL 13-88 is commonly applied in remoistenable adhesive systems such as envelopes, labels, and other paper converting products due to its reliable film-forming and bonding properties.
KURARAY POVAL 13-88 also functions as a protective colloid in emulsion polymerization and as a binder for pigments, fillers, and fibers in coatings and paper applications, while additionally serving as a raw material in the production of water-soluble PVOH films.
Advantages of KURARAY POVAL 13-88:
Good Adhesion:
Excellent strength and abrasive resistance of the formed coating.
Excellent protective action to the yarns, and minimium warp breakage during weaving.
Higher weaving efficiency and better quality of the fabrics.
Decreasing rate of warp breakage is 20% ~ 50%.
Effective in sizing performance with low size add-on.
No size drop during sizing or weaving.
Better working environments and less cleaning work.
Weaving under relatively low humidity.
Better working environments and greater work efficiency.
The best humidity in weaving room is 70 ~ 75% R.H.
Uniform properties and effectiveness of a sizem - Stable weaving efficiency
Stability and Reactivity of KURARAY POVAL 13-88:
Chemical stability:
Stable.
Reactivity:
Low.
Avoid strong oxidizers.
Conditions to avoid:
Heat.
Moisture.
Dust formation.
Ignition sources.
Incompatible materials:
Strong oxidizing agents.
Hazardous decomposition:
Carbon monoxide (CO) may form.
Carbon dioxide (CO₂) may be generated.
Irritating fumes may be released.
Handling and Storage of KURARAY POVAL 13-88:
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 13-88:
Inhalation:
Move to fresh air.
Skin contact:
Rinse with water.
Eye contact:
Rinse with water.
Ingestion:
Rinse mouth.
Seek medical advice if needed.
Firefighting Measures of KURARAY POVAL 13-88:
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 13-88:
Precautions:
Avoid dust formation.
Ensure adequate ventilation.
Cleanup:
Sweep or vacuum.
Collect properly for disposal.
Exposure Controls / Personal Protection of KURARAY POVAL 13-88:
Ventilation:
Adequate ventilation is required.
Personal protective equipment:
Wear gloves.
Use safety glasses.
Use dust mask if needed.
Identifiers of KURARAY POVAL 13-88:
CAS number: 9002-89-5
EC number: 200-778-4
Chemical formula: (C₂H₄O)n
Chemical type: Partially hydrolyzed polyvinyl alcohol
Grade designation: 13-88 (≈13 mPa·s,~88% hydrolysis)
Product Number: 334928
Unit of Measure: KG
Properties of KURARAY POVAL 13-88:
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): ~13 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: Good film-forming properties
Ionic character: Non-ionic
Moisture sensitivity: Hygroscopic
