Product Information
Chemicals/Elastomers/Rubber Isoprene Derivatives

KURARAY POLYOL™ and Diols

General name
(3-Methyl-1.5-Pentanediol (MPD), 1,9-Nonanediol (ND))
Examples

A raw material for polyurethanes. Offers improved strength and flexibility.

Kuraray offers synthetic diols, 3-methyl-1,5-pentanediol (MPD) and 1,9-nonanediol (ND). These products are produced with Kuraray’s proprietary synthesis technology. A variety of derivatives from these diols are also available under the name KURARAY POLYOL™. MPD is an isomer of 1,6-hexanediol and hexylene glycol, its methyl branch imparts many distinctive properties to the derived polymers, including low viscosity, hydrolysis resistance, wide compatibility and good softness. Polyurethane and polyester resins are key applications for these diols.

Applications

MPD, ND

Plasticizers: General plasticizer, special plasticizer
Resin raw materials: Polyester resin, epoxy resin, polyurethane resin, and other raw materials and modifiers


KURARAY POLYOL™

Polyurethane: Inks, synthetic leather, elastomers, paint adhesives, coatings, foams

Characteristics

KURARAY POLYOL™

High hydrolysis resistance: Enhanced durability
Liquid state, low viscosity: Offers excellent handling properties with many liquid grades at room temperature
High flexibility: Excellent flexibility
Compatibility with other polyols: Compatible with not only general-use polyester polyol, but also polyether polyol.

Standard grades and properties

Diol MPD

Chemical name:
3-Methyl-1,5-pentanediol
Basic properties
Appearance:
Colorless liquid
Melting point:
< -50ºC
Viscosity (20ºC)
173mPa・s
Boiling point:
250ºC
Flash point:
143ºC
Applications
  • Polyurethanes (polyols, chain extenders)
  • Polyester
  • UV monomer, oligomer
  • Inks
  • Non-crystallinity
  • Hydrophobicity
Characteristics
  • Low viscosity (handling)
  • Flexibility
  • Transparency
  • Compatibility
  • Hydrolysis resistance

Diol ND

Chemical name:
1,9-Nonanediol
Basic properties
Exterior:
White solid
Melting point:
46ºC
Viscosity (60ºC)
33mPa・s
Boiling point:
166ºC
Flash point:
162ºC
Applications
  • Polyurethanes (polyols, chain extenders)
  • Polyester
  • UV monomer, oligomer
  • Long chain
  • Odd main chain
  • Appropriate crystallinity
Characteristics
  • Hydrolysis resistance
  • Melting point is relatively high, but viscosity of 60ºC is the same as acetone

Polyols: KURARAY POLYOL™ (overview)

Type Grade (series) M.W. Exterior
25ºC
Overview and features Application examples (including PU)
Polyester polyols P-**10 500 ~ 6,000 Liquid General-purpose grade Printing inks
TPU
Synthetic leathers
PU textile (spandex)
F-**10 500 ~ 3,000 Three functions, heat resistance
P-**20 500 ~ 2,000 Wax Water resistance
Adhesiveness
Acid resistance
PUD
Metal paint/coating
P-**30 Liquid
P-**50 2,000 Liquid Flexibility
Water resistance
Acid resistance, alkalinity
Bio
TPU
coating
Inks
Polycarbonate polyols C-**90 500 ~ 3,000 Liquid Flexibility
Water resistance
Low temperature property
PUD
Synthetic leathers
Electronic components

Characteristics of polyurethane depending on polyols

KURARAY POLYOL™

  • ++Very Good
  • +Good
  • -Poor
  • --Very Poor
Polyol Ether type Ester type Carbonate type
PPG PTMG PBA P-xx10 P-xx50 P-xx11 P-xx20 PHC C-xx90
C-xx50
Softness ++ + + ++ ++ + -- - +
Low temp. softness ++ + - ++ ++ - -- - ++
Water resistance + + -- + ++ + ++ ++ ++
Acid resistance + + -- + ++ ++ ++ ++ ++
Alkali resistance + + -- + ++ + ++ ++ ++
Transparency + + -- ++ ++ ++ ++ -- ++
Solvent resistance -- -- + - + + ++ + +
Heat resistance -- -- ++ + + + ++ ++ +
UV resistance -- -- ++ ++ ++ + + ++ ++
Adhesiveness -- -- + ++ + ++ ++ - +

Related website

Contact us

Click here for inquires (KURARAY POLYOL™ and Diols)
Chemicals Marketing and Sales Department, Isoprene Chemicals Division
Ote Center Building, 1-1-3, Otemachi, Chiyoda-ku, Tokyo 100-8115, Japan
Tel.: +81-3-6701-1709
Fax.: +81-3-6701-1646