Plaster composition |
|||||||
| 申请号 | US29390063 | 申请日 | 1963-07-09 | 公开(公告)号 | US3305375A | 公开(公告)日 | 1967-02-21 |
| 申请人 | UNITED STATES GYPSUM CO; | 发明人 | JAKACKI EDWIN J; | ||||
| 摘要 | |||||||
| 权利要求 | 1. A GYPSUM PLASTER COMPOSITION COMPRISING A MAJOR AMOUNT OF CALCIUM SULFATE HEMIHYDRATE AND A MINOR AMOUNT SUFFICIENT TO CONFER IMPROVED WORKING PROPERTIES TO THE COMPOSITION OF A FINELY DIVIDED DEAD BURNED GYPSUM ADDITIVE HAVING A BLAINE SURFACE AREA VALUE OF AT LEAST ABOUT 10,000 SQUARE CENTIMETERS PER GRAM. |
||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈