Title:
METHOD FOR PREPARING HIGH-SOFTENING-POINT PITCH AND HIGH-SOFTENING-POINT PITCH PREPARED BY SAME METHOD
Document Type and Number:
WIPO Patent Application WO/2016/186329
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a high-softening-point pitch, which has a high softening point by forming a polyene radical intermediate and using the polyene radical intermediate to linearly link an alkyl aromatic radical material in the form of benzyl or methylene, leading to a polymer, and to a high-softening-point pitch prepared by the method. A high-softening-point pitch can be produced at a high yield by providing a method for preparing a high-softening-point pitch, characterized in that a base pitch is generated by adding a compound capable of forming a polyene radical intermediate to a mono- to tetra-cyclic alkyl aromatic condensate, followed by thermal treatment, and then the base pitch is subjected to thermal treatment under reduced pressure.
More Like This:
| JPH11240708 | FIBROUS ACTIVATED CARBON |
Inventors:
YOON SUNG HO (KR)
HONG SEONG HWA (KR)
YU SUK JUN (KR)
HONG SEONG HWA (KR)
YU SUK JUN (KR)
Application Number:
PCT/KR2016/004242
Publication Date:
November 24, 2016
Filing Date:
April 22, 2016
Export Citation:
Assignee:
YUSUNG TELECOM CO LTD (KR)
International Classes:
C01B31/08; C10C3/02; C10C3/00; D01F9/145; D01F9/15; D01F9/155; H01M4/62
Foreign References:
| JP2012246364A | 2012-12-13 | |||
| KR100305372B1 | 2001-09-29 | |||
| KR19990012606A | 1999-02-25 |
Other References:
ANDREIKOV, E. I. ET AL.: "Modification of Coal Tar Pitch by High-Temperature Treatment with Polyvinyl Chloride", RUSSIAN JOURNAL OF APPLIED CHEMISTRY, vol. 82, no. 9, 2009, pages 1624 - 1629, XP055332577
KO, HYO JOON ET AL.: "Changes of Microstructure and Properties of Manufactured Modified Pitches via Pressure Changes during Heat Treatments in Coal Tar Pitch", KOREAN JOURNAL OF MATERIALS RESEARCH, vol. 24, no. 6, 2014, pages 293 - 300, XP055332580
KO, HYO JOON ET AL.: "Changes of Microstructure and Properties of Manufactured Modified Pitches via Pressure Changes during Heat Treatments in Coal Tar Pitch", KOREAN JOURNAL OF MATERIALS RESEARCH, vol. 24, no. 6, 2014, pages 293 - 300, XP055332580
Attorney, Agent or Firm:
WELL PATENT LAW FIRM (KR)
특허법인 웰 (KR)
특허법인 웰 (KR)
Download PDF:
Previous Patent: DISPLAY DEVICE USING SEMICONDUCTOR LIGHT EMITTING DIODE
Next Patent: LIGHT-EMITTING ELEMENT
Next Patent: LIGHT-EMITTING ELEMENT