公开(公告)号：US3556712A

公开(公告)日：1971-01-19

申请号：US3556712D

申请日：1968-05-23

申请人： NIPPON CARBON CO LTD

发明人： YONESHIGE KAZUMASA ,  TERANISHI HARUO

IPC分类号： D01F9/16 ,  C01B31/07

CPC分类号： D01F9/16 ,  Y10S264/19

摘要： IN A PROCESS FOR THE MANUFACTURE OF A HIGH TENCITY HIGH FLAME-PROOF CARBONIZED FIBER FROM A CELLULOSIC VISCOSE RAYON, A MODIFIED VISCOSE RAYON FIBER HAVING A HIGH DEGREE OF POLYMERIZATION IS USED AS A STARTING CELLULOSIC MATERIAL.

公开(公告)号：US3628984A

公开(公告)日：1971-12-21

申请号：US3628984D

申请日：1969-03-10

申请人： NIPPON CARBON CO LTD

发明人： ISHIKAWA TOSHIKATSU ,  TERANISHI HARUO

IPC分类号： C04B35/52 ,  C04B35/83 ,  B44D1/46

CPC分类号： C04B35/521 ,  C04B35/83

摘要： Two catalytic additives are added to a mixed solution of acetone and furfural to produce a resinous solution for use in impregnating a carbonaceous product. A carbonaceous article is impregnated with the solution at a reduced pressure, and the article is immersed in a concentrated sulfuric acid bath. Then, it is withdrawn from the acid bath, rinsed, and dried. Finally, it is subjected to a heat treatment at elevated temperatures to carbonize or graphitize the carbon product impregnated with the resinous solution.

公开(公告)号：US3705236A

公开(公告)日：1972-12-05

申请号：US3705236D

申请日：1970-10-28

申请人： NIPPON CARBON CO LTD

发明人： ISHIKAWA TOSHIKATSU ,  TERANISHI HARUO

IPC分类号： D01F9/14

CPC分类号： D01F9/14 ,  Y10S264/19

摘要： A METHOD IS PROVDED FOR PRODUCING CARBON FIBERS HAVING A TENSILE STRENGTH OF MORE THAN 150 KG./MM.2 AND A YOUNG''S MODULUS OF MORE THAN 32,000 KG./MM.2 BY APPLYING A VIBRATIONAL ENERGY TO ORGANIC FIBERS UNDER A TENSION IN AT LEAST ONE OF A DRAWING STEP FOR OBTAINING THE PRECURSOR SUITABLE FOR THE PRODUCTION OF CARBON FIBERS, A PRETREATMENT STEP FOR FACILITATING CARBONIZATION OF THE PRECURSOR, A CARBONIZATION STEP FOR SUBSTANTIALLY CARBONIZING THE PRECURSOR AND A GRAPHITIZATION STEP FOR GRAPHITIZING THE CARBONIZED FOBERS AND FOR IMPROVING YOUNG''S MODULUS.