C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/18 (2006.01) B29C 41/04 (2006.01) C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/42 (2006.01) C08G 18/66 (2006.01) C08G 18/76 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2403195
A method for rotationally casting a coating onto a flexible substrate is provided wherein the coating comprises a polyurethane composition formed from (a) a substantially linear isocyanate- terminated polyurethane prepolymer; and, (b) a curative agent containing a diol having a molecular weight of less than 250 and, optionally, a secondary aliphatic diamine. Also provided is a flexible substrate possessing the coating.
Cette invention concerne un procédé de moulage par rotation permettant de déposer un revêtement sur un substrat flexible. Ce revêtement comprend une composition à base de polyuréthanne constituée par : (a) un prépolymère de polyuréthanne à terminaison isocyanate essentiellement linéaire ; et (b) un agent vulcanisant renfermant un diol dont le poids moléculaire est inférieur à 250 et, éventuellement, une deuxième diamine aliphatique. L'invention concerne également un substrat flexible doté dudit revêtement.
Clock Andrew
Gajewski Vincent J.
Peter Thomas H.
Gowling Lafleur Henderson Llp
Uniroyal Chemical Company Inc.
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