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Resins & Films

KURARAY POVAL™

Functional resins with excellent versatility
General Name
Polyvinyl alcohol (resin)
Sales Format
Granules / fine powder with defined grain size

Overview

KURARAY POVAL™ is the brand name of Kuraray’s globally produced polyvinyl alcohol (PVOH). KURARAY POVAL™ is used in a broad range 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. It features water-solubility, excellent film forming characteristics, high tensile strength and elasticity, as well as resistance against organic solvents and dispersing power.

Examples

  • 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

  • Solubility
    KURARAY POVAL™ 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™ 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.

KURARAY POVAL™ Fully Saponified Grades

Grade Name

Viscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
3-983.2 – 3.898.1 – 98.7≤ 5.0≤ 0.65.0 – 7.0
5-985.2 – 6.098.0 – 99.0≤ 5.0≤ 0.65.0 – 7.0
11-9810.2 – 11.898.0 – 99.0≤ 5.0≤ 0.65.0 – 7.0
28-9825.0 – 31.098.0 – 99.0≤ 5.0≤ 0.45.0 – 7.0
60-9854.0 – 66.098.0 – 99.0≤ 5.0≤ 0.45.0 – 7.0
25-10021.5 – 28.5≥ 99.85≤ 8.5≤ 1.0–

KURARAY POVAL™ Partially Saponified Grades

Grade Name

Viscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
17-9414.5 – 18.592.5 – 94.5≤ 5.0≤ 0.45.0 – 7.0
27-9624.0 – 30.095.5 – 96.5≤ 5.0≤ 0.45.0 – 7.0
55-9550.0 – 60.095.0 – 96.0≤ 5.0≤ 0.45.0 – 7.0

KURARAY POVAL™ Medium Saponified Grades

Grade Name

Viscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
L-508W6.0 – 7.071.5 – 73.5≤ 5.0≤ 0.45.0 – 7.0
5-744.2 – 5.072.5 – 74.5≤ 5.0≤ 0.45.0 – 7.0
32-8029.0 – 35.079.0 – 81.0≤ 5.0≤ 0.45.0 – 7.0
35-8032.0 – 38.079.0 – 81.0≤ 5.0≤ 0.45.0 – 7.0
40-80 E37.0 – 45.079.0 – 81.0≤ 5.0≤ 0.45.0 – 7.0
48-8045.0 – 51.078.5 – 80.5≤ 5.0≤ 0.25.0 – 7.0
3-832.5 – 3.580.4 – 84.7≤ 5.0≤ 0.54.5 – 7.0
3-853.4 – 4.084.2 – 86.2≤ 5.0≤ 0.55.0 – 7.0
3-883.2 – 3.687.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
5-884.6 – 5.486.5 – 89.0≤ 5.0≤ 0.45.0 – 7.0
22-8820.5 – 24.587.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
30-8827.0 – 33.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
44-8840.0 – 48.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
49-8845.0 – 52.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
95-8880.0 – 110.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0

KURARAY POVAL™ Low Saponified Agents

Grade NameViscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
LM-10HD4.5 – 5.738.0 – 42.0≤ 3.0≤ 0.6N/A
LM-203.0 – 4.038.0 – 42.0≤ 3.0≤ 1.0N/A

KURARAY POVAL™ Fine Powder Grades

Grade NameViscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
28-98 S225.0 – 31.098.0 – 99.0≤ 5.0≤ 0.45.0 – 7.0
5-88 S24.6 – 5.486.5 – 89.0≤ 5.0≤ 0.45.0 – 7.0
22-88 S220.5 – 24.587.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
30-88 S227.0 – 33.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
44-88 S240.0 – 48.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0

KURARAY POVAL™ Low Ash Grades

Grade NameViscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
5-74 LLA4.6 – 5.472.5 – 74.5≤ 5.0≤ 0.15.0 – 7.0
4-88 LA3.5 – 4.586.7 – 88.7≤ 5.0≤ 0.094.5 – 7.0
8-88 LA7.0 – 9.086.7 – 88.7≤ 5.0≤ 0.094.5 – 7.0
18-88 LA16.5 – 19.586.7 – 88.7≤ 5.0≤ 0.094.5 – 7.0
4-98 LA4.0 – 5.098.0 – 98.8≤ 5.0≤ 0.094.5 – 7.0
20-98 LA18.5 – 21.598.0 – 98.8≤ 5.0≤ 0.094.5 – 7.0
56-98 LA52.0 – 60.098.0 – 98.8≤ 5.0≤ 0.094.5 – 7.0
28-99 LA26.0 – 30.099.0 – 99.8≤ 5.0≤ 0.094.5 – 7.0

KURARAY POVAL™ Low Methanol Grades

Grade NameViscosity [mPa·s]Degree of Hydrolysis [mol%]Methanol Content [%]Ash [%]pH
4-88 LV3.5 – 4.587.0 – 89.0≤ 0.3≤ 0.45.0 – 7.0
22-88 LV20.5 – 24.587.0 – 89.0≤ 0.1≤ 0.45.0 – 7.0
26-88 LV24.5 – 27.587.0 – 89.0≤ 0.3≤ 0.45.0 – 7.0
40-88 LV38.0 – 42.087.0 – 89.0≤ 0.3≤ 0.45.0 – 7.0
49-88 LV45.0 – 52.087.0 – 89.0≤ 0.3≤ 0.45.0 – 7.0

KURARAY POVAL™ Specialty Grades

Grade NameViscosity [mPa·s]Degree of Hydrolysis [mol%]Volatiles [%]Ash [%]pH
25-88 KL20.0 – 30.085.0 – 90.0≤ 5.0≤ 1.55.0 – 7.0
3-86 SD2.4 – 3.483.0 – 88.0≤ 5.0≤ 1.8–
25-98 R20.0 – 30.098.0 – 99.0≤ 5.0≤ 0.6–
105-88 KX SB90.0 – 120.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
200-88 KX SB175.0 – 225.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0
200-88 KX175.0 – 225.087.0 – 89.0≤ 5.0≤ 0.45.0 – 7.0

KURARAY POVAL™

KURARAY POVAL™ LV GRADE

KURARAY POVAL™ LV-grades offer a specialized, safe, and biodegradable polymer for India’s cosmetics and personal care industry. Produced under strict GMP conditions, it ensures low methanol content and versatility across skincare, haircare, and color cosmetics due to its nonionic nature. Explore its wide-ranging applications and benefits in Kuraray’s detailed brochure.

KURARAY POVAL™ GRADE K

KURARAY POVAL™ K introduces carboxylated polymers, providing exceptional solubility in water and a strong affinity for hydrophobic substances. The polymer enhances various industries by improving paper quality, textile strength, and adhesive properties. Learn more about its unique features and applications in Kuraray’s detailed brochure.

KURARAY POVAL™ GRADE R

KURARAY POVAL™ R presents a new category of polyvinyl alcohols, featuring silanol groups for unparalleled adhesion to inorganic materials like glass and metal. It excels in providing exceptional bonding in metal and glass coatings, enhancing water resistance in specialty papers, and producing high-gloss finishes. Explore its innovative applications and characteristics in Kuraray’s detailed brochure.

KURARAY POVAL™ GRADE KX

KURARAY POVAL™ KX Grade by Kuraray is a high-molecular-weight PVOH designed for achieving high-viscosity emulsions with minimal dosage. It is versatile, enhancing performance in the production of PVAc emulsions and as a rheology modifier in various sectors like paint and adhesive. Discover its unique properties and applications in Kuraray’s detailed brochure.

KURARAY POVAL™ GRADE FA

Poval FA Grade from Kuraray brings a biocompatible and biodegradable PVOH to the Indian food industry, adhering to GMP standards and ISO-14851 compliance. It serves various applications, from food and feed additives to fruit coatings, improving quality and safety. Learn more about its applications and advantages in Kuraray’s detailed brochure.

POVAL PVC L

KURARAY POVAL™ L brings a fresh approach to polyvinyl alcohol (PVA) technology with low hydrolysis and standout solubility. Designed for industries prioritising top-notch viscosity and solubility, it acts as a protective colloid in PVC suspension polymerisation, ensuring even and high-quality PVC.

POVAL PVC LM

KURARAY POVAL™ LM, a groundbreaking development in polyvinyl alcohols, is known for its low hydrolysis and unique cold water suspension formation, making it vital for PVC manufacturers. With properties like a low glass transition temperature due to high acetate content, it’s a top pick for producing excellent PVC. KURARAY POVAL™ LM dissolves in organic solvent blends, redefining what polyvinyl alcohol can do.

Further information about KURARAY POVAL™

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