POLYOL MIXTURE, REACTIVE HOT-MELT COMPOSITION OBTAINED FROM THE MIXTURE, AND MOLDED ARTICLE OBTAINED WITH THE COMPOSITION

• Main Authors: MORIKAMI, ATSUSHI, KASHIWAGI, KOHICHI, KANEKO, YUKIO, WATANABE, ATSUSHI, ICHIHASHI, HIDEKI
• Format: Patent
• Language: English; French; Japanese
• Published: 15.04.2004
• Edition: 7
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A polyol mixture comprising 10 to 97 wt.% crystalline polyester polyol produced mainly from an aliphatic dicarboxylic acid and an aliphatic diol, 0 to 45 wt.% polyester polyol produced mainly from an aromatic polycarboxylic acid and an aliphatic polyol, and 3 to 45 wt.% polycarbonate polyol; a reactive hot-melt composition obtained by reacting this polyol mixture with a polyisocyanate; and a molded article obtained with this reactive hot-melt composition. L'invention concerne mélange de polyols comprenant (1) de 10 à 97 % pds de polyol polyester cristallin produit principalement à partir d'un acide dicarboxylique aliphatique d'un diol aliphatique, (2) de 0 à 45 % pds de polyol polyester produit principalement à partir d'un acide polycarboxylique aromatique et d'un polyol aliphatique, et (3) de 3 à 45 % pds. de polyol poylycarbonate, ainsi qu'une composition thermofusible réactive qu'on obtient en faisant réagir ce mélange de polyols avec un polyisocyanate, et un article moulé produit avec cette composition thermofusible réactive.