C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/66 (2006.01) C09D 175/02 (2006.01)
Patent
CA 2670041
This invention provides articles made by reaction injection molding and spray coatings, and processes for forming such articles and coatings. The coatings and articles are polyureas or polyurea-urethanes. The ingredients used to form the coatings and articles comprise at least (A) an aromatic polyisocyanate and (B) a mixture formed from components comprised of (i) at least one polyol and/or at least one polyetheramine, (ii) an aromatic primary diamine, and (iii) an aliphatic secondary diamine which has about twelve to about forty carbon atoms and in which the having amino hydrocarbyl groups are secondary or tertiary hydrocarbyl groups.
L'invention concerne des articles fabriqués par le moulage par injection à réaction et des revêtements par pulvérisation ainsi que des procédés de formation de tels articles et revêtements. Les revêtements et articles sont des poly(urées) ou des poly(urées)-uréthanes. Des ingrédients utilisés pour former les revêtements et articles comprennent au moins (A) un poly(isocyanate) aromatique et (B) un mélange formé à partir de composants constitués de (i) au moins un polyol et/ou au moins une poly(éther amine), (ii) une diamine primaire aromatique, et (iii) une diamine secondaire aliphatique qui comporte environ douze à environ quarante atomes de carbone et où les groupes aminohydrocarbyle sont des groupes hydrocarbyle secondaires ou tertiaires.
Brown William R.
Lee John Y.
Wiggins Paul L.
Albemarle Corporation
Macrae & Co.
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