Title:
IMPACT RESISTANT POLYUREAURETHANE AND METHOD OF PREPARATION
Document Type and Number:
Japanese Patent JP2007146181
Kind Code:
A
Abstract:
To provide a polyureaurethane having high impact resistance.
The polyether-containing polyureaurethane is provided. The polyureaurethane can include a prepolymer comprising a polyisocyanate and a polyether-containing polyol material. The prepolymer can be reacted with an amine-containing curing agent to produce the polyureaurethane. In an embodiment, the polyether-containing polyureaurethane, when at least partially cured and when tested as a lens with a hard coating on both surfaces (having a maximum center thickness of 2.2 mm), can have impact resistance of at least 148 feet per second as defined by The High Impact Test.
Inventors:
NAGPAL VIDHU J
MCDONALD WILLIAM H
SMITH ROBERT A
MCDONALD WILLIAM H
SMITH ROBERT A
Application Number:
JP2007051931A
Publication Date:
June 14, 2007
Filing Date:
March 01, 2007
Export Citation:
Assignee:
PPG IND OHIO INC
International Classes:
C08G18/48; C08G18/12; C08G18/66; C08G18/75; G02B1/04; G02B1/10
Domestic Patent References:
| JPH02189321A | 1990-07-25 | |||
| JPH01240513A | 1989-09-26 |
Foreign References:
| WO2000014137A1 | 2000-03-16 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita