Title:
SEQUENCE DEFINED POLYURETHANE UREA POLYMER AND ITS SHEET
Document Type and Number:
Japanese Patent JP3940313
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a novel sequence defined polyurethane urea from a diisocyanate having functional groups different in reactivity in the molecule, an aromatic diamine having photo-polymerizability, and an aliphatic diol.
SOLUTION: The sequence defined polyurethane urea has a diisocyanate structural unit represented by formula (1), a diamine structural unit represented by formula (2), and a diol structural unit represented by formula (3), and its is the polyurethane urea having k structural units of formula (1), 1 structural unit of formula (2), and (m) structural units of formula (3) and having a number average molecular weight of 2,000-200,000, and it contains also (x) structural units of formula (I), and has a relation among (k), (l), (m) and (x) of 0.7≤4x/(k+l+m)≤1.
Inventors:
Takami Hikita
Shu Mochizuki
Shu Mochizuki
Application Number:
JP2002131490A
Publication Date:
July 04, 2007
Filing Date:
May 07, 2002
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
B01D67/00; C08G18/67; B01D71/54; C08G18/76; C08J5/18; C08L75/00; (IPC1-7): C08G18/67; B01D67/00; B01D71/54; C08G18/76; C08J5/18; //C08L75:00
Domestic Patent References:
| JP11171965A | ||||
| JP11506153A | ||||
| JP2003238648A |
Attorney, Agent or Firm:
Hiroshi Morioka
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