摘要:
A process for preparing a coating composition includes contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker, wherein the polyol, the silsesquioxane, the polyurethane dendrimer, and the crosslinker are dispersed within a solvent and forming a self-stratifying coating. Further, a coating composition includes a polyol, a silsesquioxane, a polyurethane dendrimer and a crosslinker forming a mixture dispersed within a solvent.
摘要:
Novel polyurea/polyurethane two-component adhesive compositions are disclosed which comprise the reaction product of (a) a blend of an amine terminated polybutadiene and a polyhydroxybutadiene with (b) an aliphatic or aromatic di- or polyisocyanate and optionally chain extenders, tackifiers, coupling agents fillers and curingly effective amounts of catalyst.
摘要:
A one-component, moisture-curable polyurethane-based adhesive composition useful for affixing glass panels directly to electrocoat painted metal substrates or over a primer comprises a polyurethane base polymer containing an electrocoat adhesion promoter. The sealant composition has fast cure times at ambient temperatures and forms a strong bond directly to electrocoat painted metal substrates without the need for a sealant primer.
摘要:
One-component, moisture-curable sealant compositions having fast cure times comprise a mixture of a silane-capped polyurethane polymer, an aminosilane cross-linking agent, and a silyl-substituted guanidine accelerator.
摘要:
One-component, moisture-curable sealant compositions having fast cure times comprise a mixture of a silane-capped polyurethane polymer, an aminosilane cross-linking agent, and a titanium ester accelerator.
摘要:
The present invention discloses a reactivity-based self-stratifying coating composition. The coating composition can include a polyol, silsesquioxane, a polyester polyol, and a crosslinker that form a mixture within a solvent. The polyol can be selected from a fluorinated polyether, a fluoroethylene-alkyl vinyl ether and/or a combination thereof. The silsesquioxane can be an epoxy functional silsesquioxane having a formula of (R)6(C6H11O2)2(SiO1.5)8 where R can be selected from hydrogen, methyl, ethyl, propyl, butyl, pentyl, hexyl, cyclopentyl, cyclohexyl, benzyl, phenyl, and isomers thereof. In some instances, the epoxy functional silsesquioxane can be a di-epoxy silsesquioxane.
摘要翻译:本发明公开了一种基于反应性的自分层涂料组合物。 涂料组合物可以包括在溶剂中形成混合物的多元醇,倍半硅氧烷,聚酯多元醇和交联剂。 多元醇可以选自氟化聚醚,氟代乙烯 - 烷基乙烯基醚和/或它们的组合。 倍半硅氧烷可以是具有式(R)6(C 6 H 11 O 2)2(SiO 1.5)8)的环氧官能化倍半硅氧烷,其中R可以选自氢,甲基,乙基,丙基,丁基,戊基,己基,环戊基,环己基, 苄基,苯基及其异构体。 在一些情况下,环氧官能倍半硅氧烷可以是二环氧倍半硅氧烷。
摘要:
A process for preparing a coating composition includes contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker, wherein the polyol, the silsesquioxane, the polyurethane dendrimer, and the crosslinker are dispersed within a solvent and forming a self-stratifying coating. Further, a coating composition includes a polyol, a silsesquioxane, a polyurethane dendrimer and a crosslinker forming a mixture dispersed within a solvent.
摘要:
A silane-capped polyurethane block copolymer comprising at least one polyester block and at least one polyacrylate block is disclosed. The copolymer can be used in coatings, and is particularly useful as a primer coating, especially as a primer for non-porous surfaces to which adhesives will be applied.
摘要:
A primerless, one-component, moisture-curable polyurethane-based adhesive composition useful for affixing glass panels directly to electrocoat painted metal substrates comprises a polyurethane base polymer containing an electrocoat adhesion promoter. The sealant composition has fast cure times at ambient temperatures and forms a strong bond directly to electrocoat painted metal substrates without the need for a sealant primer.