| 摘要 |
<p>TITLE CHLORINATED POLYETHYLENE ELASTOMERS An uncured chlorinated polyethylene elastomer having a molecular weight distribution of about 6-13, as determined by the ratio of < IMG > where ?w represents the weight average molecular weight and ?n represents the number average molecular weight, a chlorine content of about 20-28% by weight, a Mooney viscosity value, determined according to ASTM D 1646-81, ML(1 + 4) at 100.degree.C, of about 15-36; and, optionally, a sulfur content of about 0.2-2% by weight and a process for their preparation.</p> |
