TBIS® series Products List

Reflecting the market needs for high functional products, Taoka is developing various bis-phenol derivatives
which is called "TBIS®".
TBIS® products is an excellent raw material for optical plastics which require high transparency and heat-resistance.
Especially, Fluorene-type products have a high refractive index and low birefringent due to its "Cardo Structure".

Product Name
Chemical Name

Property etc.

Chemical Structure

TBIS ® -G

CAS No.

117344-32-8

Appearance

White Crystalline Solid

Melting Point164℃StageCommercial

Refractive Index 1.62

CHBP-FCAS No.

843-55-0

Appearance

White Crystalline Solid

Melting Point

194℃

Commercial

Refractive Index 1.59

TBIS ® -RX

CAS No.

4081-00-9

Appearance

White Crystalline Solid

Melting Point

270℃

Pilot

Refractive Index 1.65

TBIS

®

-ZP

CAS No.

2115022-46-1

Appearance

White Crystalline Solid

Melting Point

203℃

Pilot

Refractive Index 1.67

【Application】 Raw Monomer or Modifier for Optical Resin or Electronic Materials.

This product has a high refractive index, transparency and heat-resistance due to it's unique structure containing afluorene skeleton. It is expected to be used as a raw material for polyimide and polyamide, a curing agent for epoxy
resins,a cross-linking agent for urethanes, and many other applications.

Product Name
Chemical NameTBIS ® -RXN

Property etc.

Chemical Structure
CAS No.

1830316-18-1

Appearance

White Crystalline Solid

Melting Point

332℃

Refractive Index 1.63

【Application】 Raw Material for Polyimide or Polyamide, Curing Agent for Epoxy Resin or Urethane.

StageLaboratory

This product has a high refractive index, transparency and heat-resistance due to it's unique structure
containing a fluorene skeleton.
Compared to existing bisphenol fluorene epoxy resins, these compounds have a high refractive index,
high solvent solubility, and excellent handling characteristics.

Product Name
Chemical Name

TBIS

®

Property etc.

Chemical Structure-GG

CAS No.

259881-39-5

Appearance

Light Yellow Sticky Solid

5% Weight Loss Temp.

Stage

Pilot

363.4℃

Viscosity(150℃) 52.5mPa・s
Refractive Index 1.60
CAS No.

47769-72-2

5% Weight Loss Temp.

TBIS ® -RXG

342℃

Laboratory

Viscosity(150℃) 374mPa・s
Refractive Index 1.62

【Application】 Electronic Materials (Photoresist, Mounting Agent), Optical Materials, Adhesive,
Coating Materials, Laminating Agent, Additives etc.

1.65

Below episulfides have excellent in low-temperature curalility.
The cured product show low dielectric constant, low water absorption and high transparency.

Product Name
Chemical Name

Property etc.

Chemical Structure

TBIS ® -AHSP

CAS No.

2489336-20-9

Appearanceviiscous liquid

Viscosity(25℃)

30Pa・s

Stage

Pilot

Refractive Index 1.53

【Applycation】 Adhesives, Additive of epoxy-resin etc.

1.65®

TBIS -ZPC is an acrylic monomer with a fluorene skeleton, and has high solvent solubility while achieving
a high refractive index. It also has excellent storage stability at room temperature and can be stably
handled without crystallizing in solution.

Product Name
Chemical Name

Property etc.

Chemical Structure

TBIS ® -ZPC

CAS No.

2115022-49-4

Appearanceviiscous solid

Stage

Pilot
Transparency T₄₀₀

90.4%

Refractive Index 1.63

【Application】 Electronic Materials, Optical Materials, Additives etc.
※ We can also develop various diol, diamine, epoxy compound and acid dianhydrides which are notlisted above.

Taoka Chemical Co.,Ltd.

Contact

FINE CHEMICALS DIVISION
taniwakir@taoka-chem.co.jp
nakaharaa@taoka-chem.co.jp