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.
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
|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|
Resin modifiers, plasticizers, coagents, photomechanical materials, adhesives, water-based paints, electrodeposition paints, electrical insulating materials, sintering binders
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)|
|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|
Resin modifiers, urethane resins (paints, adhesives, coating agents), deposition primers, parting agents, electrical insulating agents, TPU elastomers
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|
Resin modifiers, plasticizers, adhesives, paints, electrical insulating materials, cast resins
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|
Resin modifiers, urethane resins (paints, adhesives, coating agents), electrical insulating materials, TPU elastomers, cast resins
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)|
Resin modifiers, adhesives, paints, encapsulants, epoxy curing
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)|
Adhesives, UV curable resins, electrical insulating materials, cast resins
|Terminal structure||Modification of olefin||Mn||1,2Vinyl (％)||Viscosity (Poise/45°C)||Tg (°C)|
|TE Series||TEAI-1000||Urethane acrylate||Hydrogenation||2,000||<7||3,000||-14|