Title:
【発明の名称】偏光子
Document Type and Number:
Japanese Patent JP2894501
Kind Code:
B2
Abstract:
Highly effective polarizers are described having a degree of polarization P of at least 95% and a dichroic ratio QE=quotient of the extinction in the blocked position to the extinction in the transmission position, over almost the entire wavelength range of visible light, between 400 and 800 nm, of 10 or greater, the said polarizers comprising polyacetylene-containing polymer products with a matrix of pure polyvinyl alcohol (PVA). They are used in the form of films with a stretch ratio (1=length after stretching, 10=length prior to stretching) of more than 300%. They can be prepared by polymerizing acetylene in a solution of pure PVA in the presence of a nickel catalyst.
Inventors:
KARURUUHAINTSU AREKUSANDAA OSUTOYA SUTARUZEUSUKI
Application Number:
JP3640590A
Publication Date:
May 24, 1999
Filing Date:
February 19, 1990
Export Citation:
Assignee:
BAIERU AG
International Classes:
C08F2/08; C08F2/44; C08F4/80; C08F38/02; G02B1/04; G02B1/08; G02B5/30; (IPC1-7): G02B5/30; G02B1/08
Domestic Patent References:
| JP62267361A |
Other References:
【文献】特許2518845(JP,B2)
【文献】特許2865140(JP,B2)
【文献】特許2865140(JP,B2)
Attorney, Agent or Firm:
Heiyoshi Odashima