C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/147, 117/161
C08G 18/08 (2006.01) C08G 18/16 (2006.01) C08G 18/22 (2006.01) C08G 18/24 (2006.01) C08G 18/26 (2006.01) C08G 18/28 (2006.01) C08G 18/50 (2006.01) C08G 18/65 (2006.01) C08G 18/72 (2006.01) C08G 18/75 (2006.01) C08G 18/76 (2006.01) C08J 9/04 (2006.01) C08J 9/06 (2006.01) C08J 9/12 (2006.01)
Patent
CA 2007899
A method for preparing a light stable polyurethane, sprayable by means of a spray pistol, wherein use is made of an active hydrogen containing compound, wherein the functional groups consist for at least 50% of an active CH2OH, NH and/or NH2 group, the functionali- ty of which varies from 2 to 8 and the equivalent weight of which is comprised between 100 and 3500, together with 2 to 300 parts, per 100 parts of said compound, of a chain extender and/or a cross-linker, the functional groups of which are OH groups, at least 50% of which are primary OH groups, the equivalent weight of which is less than 100 and the functionality of which varies from 2 to 6, and with a catalytic system which comprises at least an organic lead, bismuth and/or tin (IV) compound and at least an amine initiator, having a functionality of 2 to 6, an equivalent weight lower than or equal to 200, and at least one aliphatic NH2 or NH group.
Du Prez Eddie
Jourquin Lucien
Gowling Lafleur Henderson Llp
Recticel
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