发明名称 |
POLYURETHANE AND PROCESS FOR PREPARING SAME |
摘要 |
A new polyurethane as well as a process for preparing same is disclosed. The new polyurethane contains therein a hard segment derived from at least one polyhydroxy substance selected from the group consisting of cellulosic substances, hemi-cellulo-sic substances and lignic substances, and is excellent in mechanical and thermal characterisitics as compared with the exising polyurethanes. The new polyurethane can be prepared according to a method known per se, using the polyhydroxy substance alone or in mixture with a polyol compound as reactants to be polycondensed with a polyisocyanate.
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申请公布号 |
CA1335311(C) |
申请公布日期 |
1995.04.18 |
申请号 |
CA19890593917 |
申请日期 |
1989.03.16 |
申请人 |
DIRECTOR-GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY |
发明人 |
HIROSE, SHIGEO;YANO, SHOICHIRO;HATAKEYAMA, HYOE;NAKAMURA, KUNIO |
分类号 |
C08G18/62;C08G18/64;(IPC1-7):C08G18/64 |
主分类号 |
C08G18/62 |
代理机构 |
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