C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/22 (2006.01) C08G 18/24 (2006.01) C08G 18/66 (2006.01) C08G 18/76 (2006.01)
Patent
CA 2648595
A process for preparing polyurethane carpet backings uses a filled polyurethane-forming composition that contains a mixture of certain metal acetylacetonate and sulfur- containing organotin catalysts. The mixture of catalysts is particularly beneficial in instances where the composition is processed at temperatures of above 30 to about 500C, as long pot life is provided together with a rapid thermally-induced cure.
L'invention concerne un procédé pour préparer des endos de tapis de polyuréthane utilisant une composition de formation de polyuréthane, chargée, qui contient un mélange de certains catalyseurs d'acétylacétonate métallique et d'organoétain contenant du soufre. Le mélange de catalyseurs est particulièrement utile dans des cas où la composition est traitée à des températures situées entre plus de 30°C et environ 500°C, aussi longtemps que la durée en pot est assurée conjointement avec un rapide durcissement induit thermiquement.
Dow Global Technologies Inc.
Dow Global Technologies Llc
Smart & Biggar
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