Title:
【発明の名称】光伝送体とそれを用いた光伝送システムおよびエンジンの制御システム
Document Type and Number:
Japanese Patent JP2854669
Kind Code:
B2
Abstract:
The invention relates to amorphous organic polymers satisfying the equations I and II: ( rho /M)'(9.1 x 10<-><5>.nCH + 9.1 x 10<-><4>.nNH + 1.5 x 10<-><3>.nOH) < 5.3 x 10<-><6> (I), ( rho /M)(nC + nO + 3.nS) < 2.6 x 10<-><2> (II), wherein are: rho the polymer density (g/cm<3>), M the molecular weight of the repeating units (g/mol), nCH the number of C-H bonds in the repeating units, nNH the number of N-H bonds in the repeating units, nOH the number of O-H bonds in the repeating units, nC the total number of benzene rings in the repeating units, nO the number of benzene rings adjacent to a carbonyl group in the repeating units, and nS the number of benzene rings adjacent to a sulfur atom in the repeating units. The fluorine content being < 40 % by weight, and the deuterium substitution degree being
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Inventors:
TAKEZAWA YOSHITAKA
OOHARA SHUICHI
TANNO SEIKICHI
TAKEYA NORIAKI
SHIMURA MASATO
OOHARA SHUICHI
TANNO SEIKICHI
TAKEYA NORIAKI
SHIMURA MASATO
Application Number:
JP11251190A
Publication Date:
February 03, 1999
Filing Date:
April 27, 1990
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
International Classes:
G02B6/12; C08G63/19; C08G63/682; C08G65/38; C08K5/13; C08K5/524; C08L27/06; C08L33/04; C08L67/00; C08L67/02; C08L71/02; C08L71/12; F02P5/15; F02P7/073; G02B1/04; G02B6/00; H04B10/00; H04B10/2581; (IPC1-7): G02B6/00; G02B6/12; H04B9/00; C08L67/02; C08K5/13; C08K5/524
Domestic Patent References:
| JP57167405U |
Attorney, Agent or Firm:
Akio Takahashi