Release agents

B - Operations – Transporting – 28 – B

Patent

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Details

B28B 7/36 (2006.01) B28B 7/38 (2006.01) B29C 33/60 (2006.01) C08G 18/36 (2006.01) C08G 18/64 (2006.01) C08L 91/00 (2006.01)

Patent

CA 2476899

The invention provides release agents and methods for preparing textiles and molded articles there from. Lignocellulosic materials, concrete and polyurethane foam can be molded with these release agents. The release agents comprise the salt of tall oil fatty acids, preferably of very high purity. A synthetic wax and/or silicone resin is used with the tall oil fatty acids in preferred embodiments. The tall oil fatty acids contain less than 10 wt% , based on the total weight of the tall oil fatty acid, of unsaponifiables and less than 1 wt%, based on the total weight of the tall oil fatty acid, of rosin acid.

La présente invention a trait à des agents anti-adhérents et des procédés de préparation de matières textiles et des articles moulés à base de celles-ci. On peut mouler des matières lignocellulosiques, du béton ou de la mousse de polyuréthanne avec lesdits agents anti-adhérents. Les agents anti-adhérents comportent le sel d'acides gras de résine liquide, de préférence à très haute pureté. Dans des modes de réalisation préféré, on utilise une cire synthétique et/ou une résine à base de silicone avec les acides gras de résine liquide. Les acides gras de résine liquide contiennent moins de 10 % en poids, par rapport au poids total de l'acide gras de résine liquide, d'insaponifiables et moins de 1 % en poids, par rapport au poids total de l'acide gras de résine liquide, d'acide de colophane.

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