ポリメチレンポリフェニルポリイソシアネート 化学特性,用途語,生産方法
主な用途／役割
エポキシ樹脂の硬化剤、感圧接着剤の架橋剤として使用される。
化学的特性
liquid
使用
Poly[methylene(polyp?henyl Isocyanate)?] is an engineering polymer used in the synthesis of highly resiliant polyurethane foams with flame retardancy.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
定義
A polymer of diphenylmethane-4,4′-diisocyanate.
主な応用
Polymethylene polyphenyl polyisocyanate can be used as a cross-linker to DNA and CTMA based films for the fabrication of biomaterials for organic electronic devices. It can be used in the formation of polyurethane based materials for non-linear optical applications.
一般的な説明
Dark-brown liquid with a weak odor. Sinks in water.
空気と水の反応
Reacts with water slowly forming heavy scum and liberating carbon dioxide gas. Dangerous pressure can build up if container is sealed.
反応プロフィール
Polymethylene polyphenyl polyisocyanate reacts with water slowly forming heavy scum and liberating carbon dioxide gas. Dangerous pressure can build up if container is sealed. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].
危険性
Questionable carcinogen.
健康ハザード
Inhalation causes breathlessness, chest discomfort, and reduced pulmonary function; wheezing, cough, and sputum may also occur. Contact with liquid irritates eyes and skin. Ingestion causes irritation of mouth and stomach.
火災危険
Behavior in Fire: Containers may explode.
安全性プロファイル
Moderately toxic by
ingestion. Mildly toxic by inhalation.
Questionable carcinogen with experimental
neoplastigenic data by implant route. When
heated to decomposition it emits toxic
fumes of NOx.
ポリメチレンポリフェニルポリイソシアネート 上流と下流の製品情報
原材料
準備製品