摘要 |
<p>The invention relates to a dental floss product comprising a unitary tape of ultra-high molar mass polyethylene having an intrinsic viscosity of at least 5 dl/g, as measured in decalin at 135°C, the tape having a thickness of about 0.02 - 0.1 mm and a width of about 0.25 - 6 mm, and a tensile strength of at least 1.8 GPa. The dental floss product has very high mechanical, especially tensile strength, shows high resistance to tearing and has a low coefficient of friction. The tape can be inserted between teeth tightly together without breaking. A further advantage of the dental tape is that it retains most of its initial strength during flossing, even if the tape separates into filaments. The invention further relates to a process of making a unitary tape suitable for use in a dental floss product.</p> |
申请人 |
DSM IP ASSETS B.V.;DIRKS, CHRISTIAAN, HENRI, PETER;SNIJDER, CARINA, SACHA;NIELABA, LEONARD, JOSEF, ARNOLD |
发明人 |
DIRKS, CHRISTIAAN, HENRI, PETER;SNIJDER, CARINA, SACHA;NIELABA, LEONARD, JOSEF, ARNOLD |