| 摘要 |
<p>Flexible cement or plaster compsn. contg. a homo- or copolymer. Compsn. comprises (a) a plaster and/or a cement material; (b) an aqs. dispersion of a homo- or copolymer of vinyl chloride, styrene or acrylic acid or a non-elastomeric homo-or copolymer of an olefin; (c) a stabiliser for the dispersion to prevent coagulation; (d) one or more setting accelerators or retardents. Pref. compsn. contains 5-60% wt. polymer. Suitable uses include flexible prefabricated sheets and also for moulds.</p> |
