Title:
【発明の名称】非線形光学活性なポリウレタン、これを含む材料、これを含む光学装置並びにこれらの化合物及び材料の製造法
Document Type and Number:
Japanese Patent JPH073526
Kind Code:
B2
Abstract:
The invention relates to a polyurethane which permits the preparation of optically active non-linear materials. This polyurethane is characterised in that it has a recurring unit of the formula in which m is a number greater than 5, R1 and R2, which are identical or different, represent a saturated or unsaturated alkyl radical or an aromatic radical and R3 represents a linear or cyclic aliphatic hydrocarbon radical or an aromatic or arylaliphatic radical, and Y represents a group comprising a radical with delocalised pi electrons and an electron acceptor group (A).
Inventors:
Gerard Mignani
Pascal Barthelmi
Remy Merue
Pascal Barthelmi
Remy Merue
Application Number:
JP23483989A
Publication Date:
January 18, 1995
Filing Date:
September 12, 1989
Export Citation:
Assignee:
Flamel Technology
International Classes:
C08G18/00; C08G18/32; G02F1/35; C08G18/38; C08G18/67; G02F1/355; G02F1/361; (IPC1-7): G02F1/35; C08G18/32
Domestic Patent References:
| JP2104547A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)
Next Patent: 温蔵機能付き蒸し器