...As described below, the manufacturing process is different for each, the former being called high-pressure polyethylene and the latter being called low- and medium-pressure polyethylene. Recently, low-density polyethylene has also become available through the low-pressure process, and is called linear low-density polyethylene (LLDPE). Low-density polyethylene was first obtained by high-pressure radical polymerization at ICI in the UK in 1933, and many problems in industrialization were overcome due to military requirements, leading to industrialization in the UK and the US during World War II. *Some of the terminology that mentions "LLDPE" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…後述するようにそれぞれ製法が異なり,前者は高圧法ポリエチレン,後者は低・中圧法ポリエチレンと呼ばれる。最近,低圧法でも低密度ポリエチレンが得られるようになり,これは直鎖状(線状)低密度ポリエチレンlinear low density polyethylene(略号LLDPE)と呼ばれている。低密度ポリエチレンは1933年イギリスのICI社で高圧ラジカル重合によって初めて得られ,軍事的要請から工業化にあたっての多くの問題点が克服され,第2次大戦中にイギリス,アメリカで工業化された。… ※「LLDPE」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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