Introduction of developed products - Ester type dianhydrides (TMEs)

Because multiple aromatic rings are imide-bound, polyimides are rigid and have strong intermolecular interactions, making them superiorly heat resistant among super engineering plastics. They are also high in electrical and mechanical properties.
Polyimides' physical properties be improved or added by choosing among diamines and dianhydrides.

TMEs are the sort of ester type dianhydrides that are expected to manifest various functional properties of special bisphenols and substituted biphenols.

Provision of high-performance TME

Examples of chemical compounds

BP-TME (CAS No.10340-81-5)

(Expected properties) High heat resistance, Low linear thermal expansion

Diamine	Tg(℃)	CTE(ppm/K)	Elastic modulus(Gpa)	coefficient of water absorption(％)
p-PDA	N.D.*	4	6.68	0.78

Dynamic viscoelasticity measurement: measurement range, Not detected within the range of room temperature ～ 450℃
Patent 5727795

TMPBP-TME (CAS No.1042278-26-1)

(Expected properties) Transparency

Diamine	Tg(℃)	CTE(ppm/K)	T400(％)	Total light transmittance(％)
TFMB	272	21.7	66.4	88.8

WO 2014／046180
(Joint development with Toho University)

BPZ-TME (CAS No.153930-84-8)

(Expected properties) solubility