| 发明名称 |
COPOLYMERIZABLE UV STABILIZERS |
| 摘要 |
<p>This invention describes UV-stabilized step growth polymers such as polyesters, polyurethanes, polycarbonates, and combinations thereof. The UV-stabilizing moieties present in these polymers comprise chemically bound, pendant ortho-hydroxydiphenyl ketone based moieties. The polymers are especially useful as protective films and fibers which are highly resistant to ultraviolet (UV) and sunlight degradation.</p> |
| 申请公布号 |
CA1247610(A) |
申请公布日期 |
1988.12.27 |
| 申请号 |
CA19860514150 |
申请日期 |
1986.07.18 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
MITRA, SUMITA B.;MITRA, SMARAJIT |
| 分类号 |
C07C49/755;C07C45/00;C07C45/67;C07C49/84;C07C67/00;C07C67/26;C07C201/00;C07C205/48;C07C213/00;C07C225/22;C07C253/00;C07C255/13;C07C313/00;C07C317/24;C07C323/22;C07C323/38;C07C323/41;C07C323/62;C07D219/06;C07D311/86;C07D319/06;C07D335/16;C08G18/00;C08G18/32;C08G18/38;C08G63/00;C08G63/18;C08G63/66;C08G63/672;C08G63/685;C08G63/688;C08G64/00;C08L67/00;C08L75/00;C08L75/04;C09K3/00;(IPC1-7):C07C49/84 |
主分类号 |
C07C49/755 |
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