发明名称 |
DENTAL IMPRESSION COMPOUND |
摘要 |
<p>A dental impression composition is formulated from a hydrogenated wood rosin, petrolatum, aluminum powder and talc and includes the following characteristics:(1) good plastic flow at mouth temperature to provide adequate working time with low flow at room temperature;(2) good heat and light stability which affords good shelf life with no change in flow properties; (3) flow properties not changed during extensive heating and sterilization during preparation for application on the dental tray;(4) sufficient, but not excessive adhesion strength so that the composition adheres to the tray but not to the patient's wet tissues; and (5) low thermal-expansion coefficient so that there are no dimensional changes as the impression is cooled from mouth temperature; and (6) good definition of detail.</p> |
申请公布号 |
CA1091861(A) |
申请公布日期 |
1980.12.23 |
申请号 |
CA19770279239 |
申请日期 |
1977.05.26 |
申请人 |
CRAFT DENTAL LABORATORY, INC. |
发明人 |
JOHNSON, PAUL A.;PINKALLA, HAMILTON A. |
分类号 |
C09K3/00;(IPC1-7):09K3/00 |
主分类号 |
C09K3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|