NISSO liquid Polybutadiene – A whole range of grades tailored to your requirements

The NISSO-Polybutadiene products of NIPPON SODA are comprised of a large portfolio of liquid polybutadienes with an extraordinarily high 1,2-vinyl content. NISSO offers homopolymers of butadiene and modified polybutadiene grades with a wide range of molecular weights. The modified grades encompass hydrogenated polybutadienes, both-end hydroxyl- and urethane (meth)acrylate terminated polybutadienes and epoxidized polybutadienes. These unique polymers are very hydrophobic and possess low glass transition temperature as well as very good electrical resistance.

Liquid polybutadienes are used in a wide range of industrial applications, such as resin modifiers, co-agents in rubber, adhesives, TPU elastomers, plasticizers, defoaming agents and many more.


  • Liquid at room temperature
  • Hydrophobic hydrocarbon main chain
  • High 1,2-vinyl content (above 85%)
  • Good chemical-resistance, light-resistance, and electrical properties
  • Good curing with highly-active vinyl groups
  • Various derivatives containing functional groups

List of Products

In addition to the B Series and the both-end hydroxyl group-terminated G Series of butadiene homopolymers, and the hydrogenated polymers of these base resins, we have a range of various derivative products to meet users' needs. The physical properties are shown as representative values.
Base Resin B Series G Series
Hydrogenated Resin BI Series GI Series
Modified Resin JP Series TE Series
List of properties

Base Resins

B Series / 1,2-Polybutadiene Homopolymer

The B Series is a homopolymer of butadiene. It has excellent plasticity as a property-modifying additive for various plastic resins and compositions. With a 1,2-vinyl structure above 85%, this series provides high reactivity to thermal or light stimulation. Also, its characteristic structure gives it a low dielectric constant property which makes it ideal as an electrical or electronic material. There are three grades ? B-1000, B-2000, and B-3000 ? classified according to the difference in mean molecular weight. Viscosity, glass transition temperature and other properties vary according to the molecular weight, providing options for selection according to the desired properties.
Products Number-average molecular weight Microstructure (%) Viscosity (Poise/45°C) Hydroxyl value (KOHmg/g) Specific gravity (25°C/4°C)
1,2-vinyl trans-1,4
B-1000 1200 85 and above 15 and below 10 - 0.86
B-2000 2100 90 and above 10 and below 62 - 0.86
B-3000 3200 90 and above 10 and below 210 - 0.87
Principal Uses
Resin modifiers, plasticizers, coagents, photomechanical materials, adhesives, water-based paints, electrodeposition paints, electrical insulating materials, sintering binders
Structural Formula

G Series / Both-end Hydroxyl Group-terminated Polybutadiene

The G Series is a both-end hydroxyl group-terminated polybutadiene. As with the B Series, the structure of the main chain is composed predominately of 1,2-vinyl structure, but because it has hydroxyl groups at both ends, it can be developed for different uses. With the hydroxyl groups as the active sites, the G Series can be used as a diol component of polyester, polyurethane, and other polymers.
Products Number-average molecular weight Microstructure (%) Viscosity (Poise/45°C) Hydroxyl value (KOHmg/g) Specific gravity (25°C/4°C)
1,2-vinyl trans-1,4
G-1000 1400 85 and above 15 and below 75 68~78 0.88
G-2000 1900 85 and above 15 and below 135 35~55 0.88
G-3000 3000 90 and above 10 and below 310 27 and above 0.88
Principal Uses
Resin modifiers, urethane resins (paints, adhesives, coating agents), deposition primers, parting agents, electrical insulating agents, TPU elastomers
Structural Formula

Hydrogenated Resins

BI Series / Hydrogenated Polybutadiene

The BI Series is a hydrogenated polybutadiene. This series has excellent long-term chemical stability in terms of light and weather resistance, etc.
Products Number-average molecular weight Terminal functional group Iodine value (Ig/100g) Viscosity (Poise/45°C) Hydroxyl value (KOHmg/g) Specific gravity (25°C/4°C)
BI-2000 2200 - 21 and below 50~100 - 0.86
BI-3000 3300 - 21 and below 100~300 - 0.87
Principal Uses
Resin modifiers, plasticizers, adhesives, paints, electrical insulating materials, cast resins
Structural Formula

GI Series / Both-end Hydroxyl Group-terminated Hydrogenated Polybutadiene

The GI Series is a hydrogenated polybutadiene which has hydroxyl groups on both ends. In addition to chemical stability, the compound has hydroxyl groups on both ends as the active sites.
Products Number-average molecular weight Iodine value (Ig/100g) Viscosity (Poise/45°C) Hydroxyl value (KOHmg/g) Specific gravity (25°C/4°C)
GI-1000 1500 21 and below 80~140 60~75 0.88
GI-2000 2000 21 and below 120~250 40~55 0.88
GI-3000 3100 21 and below 250~450 25~35 0.88
Principal Uses
Resin modifiers, urethane resins (paints, adhesives, coating agents), electrical insulating materials, TPU elastomers, cast resins
Structural Formula

Modified Resins

JP Series / Epoxidized Polybutadiene

The JP Series is an epoxidized polybutadiene formed by introducing an epoxy group through oxidation of the vinyl group of 1,2-polybutadiene. It is used as a copolymer component of epoxy resin compositions. Because the JP Series has only partial epoxy introduction, it retains the plasticity and electrical properties derived from its 1,2-vinyl structure, which produces a setting material with characteristics different from those of general-purpose epoxy resins.
Products Epoxy-equivalent weight (g/eq) Viscosity (Poise/45°C)
JP-100 190~210 220
JP-200 210~240 1000
Principal Uses
Resin modifiers, adhesives, paints, encapsulants, epoxy curing
Structural Formula

TE Series / Terminal Acryl Group Polybutadiene Urethane Bond

The TE Series is a polybutadiene acrylate resin with (meth) acryl groups attached to both ends of either polybutadiene or hydrogenated polybutadiene via a urethane bond. Because of the reactivity of the (meth) acryl groups, this series can be used in various compositions such as for adhesives and paints.
Products Viscosity (Poise/45°C) Acryl equivalent (g/eq)
TEAI-1000 2500~4000 1200~1600
TE-2000 1000~3000 1600~2300
Principal Uses
Adhesives, UV curable resins, electrical insulating materials, cast resins
Structural Formula

List of Properties

Terminal structure Modification of olefin Mn 1,2Vinyl (%) Viscosity (Poise/45°C) Tg (°C)
B Series B-1000 H None 1,200 89 10 -44
B-2000 H None 2,100 90 62 -29
B-3000 H None 3,200 90 210 -21
BI Series BI-2000 H Hydrogenation 2,200 <7 60 -51
BI-3000 H Hydrogenation 3,300 <7 180 -44
G Series G-1000 OH None 1,400 91 75 -25
G-2000 OH None 1,900 91 135 -19
G-3000 OH None 3,000 91 310 -15
GI Series GI-1000 OH Hydrogenation 1,500 <7 105 -44
GI-2000 OH Hydrogenation 2,000 <7 165 -42
GI-3000 OH Hydrogenation 3,100 <7 315 -37
TE Series TEAI-1000 Urethane acrylate Hydrogenation 2,000 <7 3,000 -14
TE-2000 Urethane methacrylate None 2,500 88 1,500 -9
JP Series JP-100 H Epoxidation 1,300 >70 220 -16
JP-200 H Epoxidation 2,200 >70 1,000 -7
* Physical properties are shown as representative values.

1,2-SBS (Styrene/Butadiene/Styrene)

produced by NIPPON SODA

By using Nisso’s proprietary technology, we are able to manufacturer a Styrene/Butadiene/Styrene block co-polymer (SBS) with high 1,2-vinyl content. Nisso SBS can offer extremely good crosslinking when combined with Nisso PB, but also works well as a standalone product. The high crosslinking density leads to improved heat resistance (increased Tg), elasticity, solvent resistance, and lower Dk and Df.
Principal Uses
Co-crosslinking agent, resin modifiers, electrical insulating agents, general rubber goods, adhesives
Structural Formula
1,2-SBS Contents (wt%) o/p/q Mn 1,2-Vinyl ratio(%) m/(m+n) Viscosity (P@45°C)
Solid type 25/50/25 26,000 ≧90 -
Liquid type 10/80/10 5,000 ≧90 1000
Solid Type
Liquid Type

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