C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) B05D 3/02 (2006.01) C08G 18/08 (2006.01) C08G 18/28 (2006.01) C08J 3/09 (2006.01) C09K 3/18 (2006.01)
Patent
CA 2260778
Anti-fog and scratch-resistant polyurethane compositions are disclosed which include an isocyanate prepolymer, a hydrophilic polyol and an isocyanate-reactive surfactant. The reaction product of the component produces enhanced properties having permanent anti-fog and scratch-resistant characteristics. These compositions may be used as coatings, films and self-supporting articles. Plastic substrates coated with these compositions may be subsequently subjected to thermoforming, such as molding and shaping, without loss of their properties.
La présente invention concerne des compositions de polyuréthane anti-buée résistant aux éraflures. De telles compositions incluent un prépolymère d'isocyanate, un polyol hydrophile et un agent tensio-actif réagissant aux isocyanates. Le produit de réaction du composant confère des propriétés accrues quant à son caractère anti-buée permanent et sa résistance aux éraflures. Ces compostions conviennent comme revêtements, films et matières constitutives des articles. Les substrats de plastiques revêtus de ces compositions sont capables ensuite de subir un thermoformage, tel qu'un moulage ou un façonnage, sans perdre leurs propriétés.
Creasy Walter S.
La Casse Robert G.
Film Specialties Inc.
Piasetzki Nenniger Kvas Llp
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