| 摘要 |
<p>LOW DENSITY CELLULAR POLYVINYL CHLORIDE A blend is provided which is suitable for preparing low density cellular products, said blend comprising a vinyl chloride resin, e.g., polyvinyl chloride; a butadiene rubber, e.g , butadieneacrylonitrile; and a liquid polyfunctional monomer, e.g., styrene. Insulation products such as sheets or tubes (for pipe insulation) are easily fabricated by freely expanding (i.e., without employing forming molds) blends of the invention which contain heat activated blowing agents.</p> |
