C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 59/18 (2006.01) C08G 59/40 (2006.01)
Patent
CA 2727623
The present invention relates to novel polyamines A1 of formula (I) or (II). They can be easily synthesized from readily available raw materials and have no primary amino groups or only a low content of primary amino groups and thus exhibit hardly any blushing. Their viscosity is relatively low, compared with polyamine/polyepoxide adducts of the polyamine on which polyamine A1 is based. Thus epoxy resin compositions can be formulated which are free of benzyl alcohol and free of blushing.
L'invention concerne de nouvelles polyamines A1 de formule (I) ou (II) qui peuvent être obtenues à partir de matières premières très accessibles et ne contiennent pas ou très peu de groupes amino primaires et ne présentent par conséquent d'effet de voilage. Comparativement à des produits d'addition polyamine/polyépoxy de la polyamine qui est à la base de la polyamine A1, ces nouvelles polyamines ont une faible viscosité et s'utilisent pour formuler des compositions à base de résine époxy, qui sont exemptes d'alcool benzylique et ne présentent pas d'effet de voilage.
Osler Hoskin & Harcourt Llp
Sika Technology Ag
LandOfFree
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