| 摘要 |
<p>The present invention relates to stable aqueous colloidal dispersions of sulfopolyureas and self-supporting films formed from the dispersions which display good mechanical properties from about room temperature to temperatures exceeding 150 °C. The films of the invention, which are formed with no volatile organic compound (VOC) emissions and no post-coating chemical or ionic cross-linking, are not redispersible in water and may be used to form heat resistant abrasive articles.</p> |
