Taking advantage of proprietary technology, the C4 Derivatives Dept. has developed a wide range of products. These include 1,4-butanediol (1,4-BG) and its derivatives including tetrahydrofuran (THF) and poly(tetramethylene ether) glycol (PTMG). The group also produces maleic anhydride and its derivatives including gamma-butyrolactone (GBL) and N-methyl-2-pyrrolidone (NMP). Especially the 1,4-BG/THF joint production process has been highly valued by our customers. This technology has been exported overseas. New product development and production process innovation for our wide-ranging offerings are driven by our customers' increasingly sophisticated and diverse needs together with our tenacious pursuit of quality.

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PTMG

PTMG (Poly(tetramethylene ether)glycol / PTMG) is a linear polyether glycol with hydroxyl groups on both ends. As a polyol, it reacts readily with isocyanates (for example MDI, TDI), etc. to make resins with excellent properties.

  • Grades:
    PTMG650、PTMG850、PTMG1000、PTMG1300、PTMG1500、PTMG1800、PTMG2000、PTMG3000、PTMG250(under development)、PTMG4000(under development)
  • CAS No.:
    25290-06-1
  • Japan, Chemical Substances Control Law:
    METI-No. 7-129
  • Japan, Poisonous and Deleterious Substances Control Law:
    Not applicable.
  • Japan, Fire Services Law:
    Hazardous Material Class 4 Petroleums No.3 Hazardous Rank III (PTMG250(under development))
    Hazardous Material Class 4 Petroleums No.4 Hazardous Rank III (PTMG650,850)
    Combustible Materials, Flammable Solids (PTMG1000, 1300, 1500, 1800, 2000, 3000, 4000(under development))

Maleic Anhydride

Maleic anhydride is produced by oxidation of benzene or a C4 hydrocarbon such as butane in the presence of a vanadium oxide catalyst. Maleic anhydride can be converted to maleic acid by hydrolysis and to esters by alcoholysis.

  • CAS: No. 108-31-6 (T)
  • EINECS: No. 203-571-6
  • Japan, Chemical Substances Control Law: METI-No. 2-1101
  • Japan, Industrial Safety and Health Law: ID No. 554 (SDS required)
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Not applicable.

THF

THF (Tetrahydrofuran) is a stable compound with relatively low boiling point and excellent solvency. It is widely-used for dissolution and reaction of various substances. Also it is used as a starting material for the synthesis of poly(tetramethylene ether) glycol (PTMG), etc. Since 1982, Mitsubishi Chemical's Yokkaichi plant has produced high-purity, high-quality THF from butadiene using our proprietary technology.

  • CAS: No. 109-99-9 (T)
  • EINECS: No. 203-726-8
  • Japan, Chemical Substances Control Law: METI-No. 5-53
  • Japan, Industrial Safety and Health Law: No. 5-53, ID No. 367 (SDS required)
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous Material Class 4 Petroleums No.1 (water-soluble liquid). Hazardous Rank II
  • U.N. Class: 3
  • U.N. No.: UN2056

NMP

NMP (N-Methyl-2-Pyrrolidone) is a polar solvent with outstanding characteristics. It has a wide range of applications because it offers very high solvency, high boiling point, low freezing point, and ease of handling.

  • CAS: No. 872-50-4 (T)
  • EINECS: No. 212-828-1
  • Japan Chemical Substances Control Law: METI-No. 5-113
  • Japan, Industrial Safety and Health Law: No. 8-1-1014
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).

GBL

GBL has a wide range of practical applications because of its low freezing point, high boiling point, and a unique combination of solvent and electrical properties. It has applications as a solvent for special resins, in photography, in batteries, and as an electrolyte. Also a number of derivatives are synthesized from GBL.

  • CAS: No. 96-48-0 (T)
  • EINECS: No. 202-509-5
  • Japan Chemical Substances Control Law: METI-No. 5-3337
  • Japan, Industrial Safety and Health Law: No. 5-3337
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).Aprotic, polar solvent.

2P

2P (2-Pyrrolidone) is a widely-used solvent with outstanding characteristics. It is miscible with almost all other organic solvents and has a high boiling point.

  • CAS: No. 616-45-5 (T)
  • EINECS: No. 210-483-1
  • Japan, Chemical Substances Control Law: METI-No. 5-112
  • Japan, Industrial Safety and Health Law: No. 5-112
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).

12BG

12BG (1,2-butanediol) is a glycol with hydroxyl groups on the first and second carbon of the 4-carbon chain. It can react with a dicarboxylic acid (for example phthalic acid or adipic acid), for use as a polyester polyol or a plasticizer. Moreover, it is also possible to make it react with an unsaturated dicarboxylic acid (for example, maleic anhydride) for use as an unsaturated polyester resin raw material.

  • CAS: No. 584-03-2 (T)
  • EINECS: No. 209-527-2
  • Japan, Chemical Substances Control Law: METI-No. 2-235
  • Japan, Industrial Safety and Health Law: No. 2-235
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).

14BG

14BG (1,4-Butanediol) is a straight chain glycol with hydroxyl groups on both ends. It is used as a raw material for high performance polyester and polyurethane resins as well as for industrial chemicals like tetrahydrofuran and gamma-butyrolactone. Since 1982, Mitsubishi Chemical's Yokkaichi plant has produced high-purity, high-quality 14BG from butadiene using our proprietary technology.

  • CAS: No. 110-63-4 (T)
  • EINECS: No. 203-786-5
  • Japan, Chemical Substances Control Law: METI-No. 2-235
  • Japan, Industrial Safety and Health Law: No. 2-235
  • Japan, Poisonous and Deleterious Substances Control Law: Not applicable.
  • Japan, Fire Services Law: Hazardous material Class 4 Petroleums No.3 (water-soluble liquid).

PCD_BENEBiOL™

Polycarbonatediol(PCD) is a linear polycarbonate with hydroxyl groups at both ends. It easily reacts with isocyanate compounds (e.g. MDI, TDI, IPDI, H12MDI) and generates polymers with superior characteristics described below.
The proprietary manufacturing technology of Mitsubishi Chemical Corporation (MCC) enables production of unique composition and higher molecular weight PCDs with stable product qualities. The resins made from MCC’s PCDs "BENEBiOL™" have unique properties that existing resins have not been able to establish. In addition, some of the PCDs’ raw materials are biomass-based.

  • Chemical resistance
  • Hydrolysis resistance
  • Weather resistance
  • Flexibility at low temperature
  • Abrasion resistance
  • High mechanical properties
  • High hardness
  • Biomass-based