摘要:
The invention relates to mixtures containing (A) an isocyanurate and/or biuret of the 1,6-diisocyanatohexane (HDI), (B) an isocyanurate of the 1-isocyanato-3,5,5-trimethyl-5-isocyanatomethyl-cyclohexane (IPDI), (C) at least one emulsifier, and (D) optionally a solvent.
摘要:
The invention relates to mixtures containing (A) an isocyanurate and/or biuret of 1,6-diisocyanatohexane (HDI), (B) an isocyanurate of 1-isocyanato-3,5,5-trimethyl-5-isocyanatomethyl-cyclohexane (IPDI), (C) at least one emulsifier, which can be obtained by reacting a diisocyanate (C2) selected from tetramethylenediisocyanate, dodecamethylenediisocyanate, 1,4-diisocyanatocyclohexane, 4,4'-di(isocyanatocyclohexyl)methane, trimethylhexandiisocyanate, tetramethylhexandiisocyanate, 2,4 or 2,6 toluylenediisocyanate and the isomer mixtures thereof, tetramethylxylylenediisocyanate, p-xylylenediisocyanate, 2,4' or 4,4' diisocyanatodiphenylmethane and a mixture of at least two of said diisocyanates having at least one component (C1) which contains at least one group which can react with isocyanate groups and at least one hydrophile group, and (D) optionally a solvent.
摘要:
A two-component composition for the production of gelcoats is disclosed, comprising, in addition to a polyisocyanate component, a specially-formulated polyol component. The latter contains one or more low molecular weight polyols, one or more high molecular weight polyols and one or more light-resistant aromatic amines. Gelcoats with very good working properties can be achieved with said two component composition, in particular with long lamination time, very good adhesion to the applied laminate and excellent surface and stability properties which meet the requirements of moulded pieces such as aerofoils. The invention further relates to the use of particular light-resistant aromatic amines in a polyol component to increase the lamination time on application in a polyurethane gelcoat for coating epoxy laminates, a method for production of polyurethane gelcoats and a composite material comprising said gelcoat.
摘要:
Self-photoinitiating liquid oligomeric compositions having tertiary amine groups are provided by Michael Addition reaction of: A) an uncrosslinked Michael Addition reaction product of a multifunctional acrylate acceptor and a Michael Donor; and B) a primary and/or secondary amine. The compositions can be crosslinked to make coatings, laminates and adhesives.
摘要:
The invention relates to a coating agent, method for production and use thereof for generation of structured painted surfaces on heat-resistant substrates, based on binding agents with hydroxy groups, cross-linking substances and particular amino compounds.
摘要:
Solventless and waterless primers which are hardenable by radiation, based on hydroxyfunctional prepolymers and cycloaliphatic epoxides, or based on hydroxyfunctional prepolymers and olefinically unsaturated compounds, or based on epoxides and vinyl ethers and cationic or radical initiators, can be applied like usual commercial solventless covering adhesives and permit subsequent in-line coating when there are many coatings, without solvent and/or water having to be volatilized from the primer coating.