公开(公告)号：US3584107A

公开(公告)日：1971-06-08

申请号：US3584107D

申请日：1969-07-10

Applicant: BAYER AG

Inventor： KUBITZEK HARRY ,  REICHLE ALFRED ,  FALKAI BELA VON

IPC: D01F6/64 ,  D06M13/127 ,  D06M13/224 ,  B29D7/24

CPC classification number: D06M13/224 ,  D01F6/64 ,  D06M13/127

Abstract: PRODUCTION OF CRYSTALLINE POLYCARBONATE FILAMENTS AND FOILS BY FORMING SUCH FILAMENTS OR FOILS AND SWELLING SUCH FILAMENTS OR FOILS WITH A KETONE OR AN ESTER SWELLING AGENT, STRETCH-ORIENTING SUCH FILAMENTS OR FOILS IN THE SWOLLEN STATE

AND THEN HEAT-TREATING SUCH ORIENTED FILAMENTS OR FOILS AT A TEMPERATURE OF ABOUT BETWEEN 180 AND 260*C.

公开(公告)号：US3574814A

公开(公告)日：1971-04-13

申请号：US3574814D

申请日：1969-10-06

Applicant: BAYER AG

Inventor： FALKAI BELA VON ,  RELLENSMANN WOLFGANG ,  REICHARDT MANFRED ,  REICHLE ALFRED

IPC: B29C49/00 ,  B29C55/00 ,  B29C55/02 ,  B29C55/04 ,  D01F6/64 ,  D01D5/12

CPC classification number: B29C55/04 ,  B29K2069/00 ,  B29K2105/0073 ,  D01F6/64

Abstract: FILAMENTARY AND FOIL MATERIAL FROM HIGH MOLECULAR WEIGHT LINEAR POLYCARBONATE HAVING A MOLECULAR WEIGHT FROM 95,000-150,000 AND A CRYSTALLINE CONTENT OF AT LEAST 18% PRODUCED BY SHAPING A SOLUTION OF THE POLYCARBONATE IN AN ORGANIC SOLVENT INTO LINEAR FORM AND STRETCHING THE LINEAR FROM SHAPED MATERIAL AT A DRAW RATIO OF AT LEAST 4:1 BY DISCRETE POINT STRETCHING AT A TEMPERATURE ABOVE THE CRYSTALLIZATION TEMPERATURE LIMIT AND BELOW THE CRYSTALLITE MELTING POINT THEREOF.

公开(公告)号：US3518045A

公开(公告)日：1970-06-30

申请号：US51251865

申请日：1965-12-08

Applicant: BAYER AG

Inventor： RELLENSMANN WOLFGANG ,  WIEDEN HORST ,  FALKAI BELA VON ,  REICHLE ALFRED

IPC: C08G18/08 ,  C08G18/83 ,  C08J3/21 ,  D01F6/72 ,  D06P1/92 ,  D06P3/24

CPC classification number: C08J3/212 ,  C08G18/0804 ,  C08G18/83 ,  C08J2375/04 ,  D01F1/06 ,  D01F6/70 ,  D06P1/90 ,  Y10S8/926