POLYBENZOXAZOLE RESIN AND PRECURSOR THEREOF

WIPO Patent Application WO/2012/137840

A1

Provided are: a polybenzoxazole resin having a repeating unit represented by general formula (1), which has excellent electric insulation properties, heat resistance, mechanical properties, physical properties, dimensional stability and the like; and a polybenzoxazole precursor which enables the production of the polybenzoxazole resin and has excellent solubility in solvents and storage stability. (In formula (1), R1 represents a tetravalent aromatic group; each N and each O that are bound to R1 are paired, wherein N and O in each pair are respectively bound to adjacent carbon atoms located on the same aromatic ring; R2 represents an alkanediyl group having 1-6 carbon atoms; and n represents an integer of 2-10000.)

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HONDA EIICHI (JP)

PCT/JP2012/059242

October 11, 2012

April 04, 2012

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MITSUBISHI GAS CHEMICAL CO (JP)
HONDA EIICHI (JP)

C08G73/22; C08L79/04; H01B3/30

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OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)

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