Title:
POLY(P-PHENYLENEBENZOBISOXAZOLE) CRYSTAL AND METHOD FOR PRODUCING SAME, AND COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/178427
Kind Code:
A1
Abstract:
Provided are a poly(p-phenylenebenzobisoxazole) crystal that takes a characteristic crystalline state and a method for producing the same, and a composite material and a method for producing the same. The poly(p-phenylenebenzobisoxazole) crystal which is a plate crystal is formed by cooling a solution prepared by completely dissolving poly(p-phenylenebenzobisoxazole), at a rate of 0.2°C/min or less, to deposit nanofibers of poly(p-phenylenebenzobisoxazole), and binding the deposited elongated PBO nanofibers into a bundle with the nanofibers being arranged parallel to each other, extending in the longitudinal direction, and being joined together in a direction perpendicular to the longitudinal direction.
Inventors:
UCHIDA TETSUYA (JP)
Application Number:
PCT/JP2016/063600
Publication Date:
November 10, 2016
Filing Date:
May 02, 2016
Export Citation:
Assignee:
NAT UNIV CORP OKAYAMA UNIV (JP)
International Classes:
C08J5/06; C08J3/14
Domestic Patent References:
| WO2007037260A1 | 2007-04-05 |
Foreign References:
| JP2014062144A | 2014-04-10 | |||
| JP2015110854A | 2015-06-18 |
Other References:
KAORU SHIMAMURA ET AL.: "Crystallization of poly (p-phenylene benzobis-oxazole)from dilute solution", JOURNAL OF THE SOCIETY OF FIBER SCIENCE AND TECHNOLOGY, vol. 54, no. 7, July 1998 (1998-07-01), pages 374 - 378
TETSUYA UCHIDA ET AL.: "Preparation and Properties of Rigid PBO Polymer Nanofibers Prepared via Crystallization From a Dilute Solution in Sulfuric Acid", JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY, vol. 27, no. 2, 23 August 2014 (2014-08-23), pages 177 - 180, XP055326215
TETSUYA UCHIDA ET AL.: "Preparation and Properties of Rigid PBO Polymer Nanofibers Prepared via Crystallization From a Dilute Solution in Sulfuric Acid", JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY, vol. 27, no. 2, 23 August 2014 (2014-08-23), pages 177 - 180, XP055326215
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