Major Products

The business scope of Honshu Chemical encompasses highly functional resin materials, highly functional chemicals and other chemical products in each of which the company provides major products as follows:

Highly functional resin materials
Major Product Major Application
Biphenol ∨ Raw material for LCP and synthetic resin property modifiers
Special bisphenol ∨
  • Bisphenol C (Bis-C)
  • Bisphenol E (Bis-E)
  • Bisphenol Z (Bis-Z)
  • TrisP-PA
  • Bisphenol AP (BisP-AP)
  • Bisphenol TMC (BisP－TMC)
 Raw materials for the special polycarbonate resins and epoxy resins
Highly functional chemicals
Major Product Major Application
Trisphenol-PA-MF (TrisP-PA-MF) Photo resist materials ∨
2,5-xylenol Photo resist materials ∨ and raw materials for pharmaceutical and other products
2,3,5 Trimethylphenol Photo resist materials ∨
2,3,6 Trimethylphenol ∨ Raw materials for Vitamin E
Meta cresol Raw materials for agrochemicals, pharmaceuticals, aroma chemicals, electronic materials, etc.
Crude BHT Raw materials for antioxidants
3M6B Raw materials for antioxidants, aroma chemicals, etc.
4M2B Raw materials for antioxidants and ultraviolet absorbents
Other chemical products
Major Product Major Application
Phenol Raw materials for synthetic resins, pharmaceuticals, dyestuffs, agrochemicals and rubber chemicals

Of the products mentioned above, those that can meet three criteria of

  1. Having growth markets to serve;
  2. Using the company’s proprietary technologies; and
  3. Having high market shares in the world,

are identified as the core business products; they are “biphenol,” “photo resist materials (TrisP-PA-MF, etc.)” and “raw materials for Vitamin E (2,3,6 Trimethylphenol).” These three businesses are joined by “special bisphenol materials” which are being developed into the fourth core business. The major products for the core businesses are outlined as follows:

Core Product Biphenol (liquid-crystal polymer and highly functional resin materials)

Biphenol is a raw material for liquid-crystal polymers chiefly used in parts that require heat resistance, such as connectors in personal computers and cellular phones and are indispensable for telecommunication and electronic manufacturers. The Company maintains a majority share in the global market for these products, and has established a firm position as the leading manufacture of biphenol.

Our products are used in the following products:

  • Connecter

  • Personal computers

  • Cellular phones


Core Product Special bisphenol (highly functional resin materials)

These highly functional resin materials are used as raw materials for producing the special polycarbonate resins and epoxy resins applied to information and telecommunications-related components used in personal computers and cellular phones.

  • Bisphenol C (Bis-C)
  • Bisphenol Z (Bis-Z)
  • Bisphenol AP (BisP-AP)
By taking advantage of their anti-wear, electrical, heat-resistant and other properties, these products are used as raw materials for producing the special polycarbonate resins applied to highly functional products, such as organic photoconductors (OPC), optical disks and lenses.
  • TrisP-PA
  • Bisphenol E (Bis-E)
By taking advantage of their heat-resistant, electrical, resilient and other properties, these products are used as raw materials for producing the special epoxy resins applied to highly functional products, such as laminate sheets and sealants.

Our products are used in the following products:

  • Personal computers

  • Cellular phones

  • CD and other optical disks

  • Printed circuit boards

  • Automobile parts and components aaa


Core Product Photo resist materials (highly functional chemicals)

A pattern formed by using photo resist materials

Photo resist materials are photosensitive resins whose physical properties change depending upon exposure to light and radiation and are used in the manufacturing processes for semiconductors such as ICs, components indispensable to the telecommunication and electronics industries.
The company manufactures and markets a variety of products which are raw materials for photo resist materials and which include major products as follows:

Trisphenol-PA-MF (TrisP-PA-MF)
TrisP-PA-MF is one of the key materials for photo resist materials which are used in the process of fabricating semiconductors and it is widely used because of its excellent performance as a photosensitive material and photosensitizer.
2,3,5 Trimethylphenol
2,3,5 Trimethylphenol is one of the key materials for photo resist materials which are used in the process of fabricating semiconductors and it works excellently in the process of micro-pattern formation as one of the monomers used to make basic resins.

Our products are used in the manufacturing processes for:

  • IC and other semiconductor products


Core Product Raw materials for Vitamin E (highly functional chemicals)

2,3,6 trimethylphenol is a raw material of vitamin E having antioxidative eff ect. It is chiefly used for an additive of digestible protein and is expected to be more demanded in the future.