| 发明名称 |
IMPACT RESISTANT POLYUREAURETHANE AND POLYUREAURETHANE PREPOLYMER HAVING LOW NCO/OH RATIO |
| 摘要 |
The present invention relates to a polyureaurethane wherein the prepolymer comprising said polyureaurethane has a NCO to OH equivalent ratio of from 2. 0 to less than 2.5. In an embodiment, the polyureaurethane prepolymer comprise s a polyisocyanate and at least one OH-containing material, which can be react ed with an amine-containing curing agent to produce the polyureaurethane of the present invention. |
| 申请公布号 |
CA2467724(A1) |
申请公布日期 |
2003.10.02 |
| 申请号 |
CA20022467724 |
申请日期 |
2002.11.14 |
| 申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
MCDONALD, WILLIAM H. |
| 分类号 |
G02B1/04;C08G18/12;C08G18/40;C08G18/42;C08G18/48;C08G18/65;C09D175/04;(IPC1-7):C08G18/12;C08G18/75 |
主分类号 |
G02B1/04 |
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