EP 1327165 A2 20030716 - METHOD FOR MAKING OPTICAL DEVICES FROM HOMOPOLYMERS
Title (en)
METHOD FOR MAKING OPTICAL DEVICES FROM HOMOPOLYMERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON OPTISCHEN GEGENSTÄNDEN AUS HOMOPOLYMEREN
Title (fr)
PROCEDE DE FABRICATION DE DISPOSITIFS OPTIQUES A PARTIR D'HOMOPOLYMERES
Publication
Application
Priority
- US 0130681 W 20011001
- US 68649800 A 20001011
Abstract (en)
[origin: WO0231541A2] An improved optical film having a continuous/disperse phase morphology and a method for making the same is provided. At least one of the continuous and disperse phases comprises a blend of homopolymers which are inter-reacted, as by transesterification. The resulting films exhibit a higher degree of birefringence for a given level of strain than analogous films in which the blend is replaced by a random copolymer.
IPC 1-7
IPC 8 full level
B29C 55/02 (2006.01); C08G 85/00 (2006.01); C08L 67/02 (2006.01); G02B 1/04 (2006.01); G02B 5/02 (2006.01); G02B 5/30 (2006.01)
CPC (source: EP KR)
C08L 67/02 (2013.01 - EP); G02B 1/04 (2013.01 - EP KR); G02B 5/3033 (2013.01 - EP)
Citation (search report)
See references of WO 0231541A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0231541 A2 20020418; WO 0231541 A3 20021031; AU 9644701 A 20020422; CN 1311248 C 20070418; CN 1468380 A 20040114; EP 1327165 A2 20030716; JP 2004511628 A 20040415; JP 4347562 B2 20091021; KR 20030045823 A 20030611
DOCDB simple family (application)
US 0130681 W 20011001; AU 9644701 A 20011001; CN 01817131 A 20011001; EP 01977319 A 20011001; JP 2002534873 A 20011001; KR 20037005054 A 20030410