摘要:
Curable compositions comprising a benzoxazine component, a polyamine component and a fluoropolymer component are described. The compositions may be cured to produce compositions useful in coating, sealants, adhesive and many other applications.
摘要:
A wood adhesive, a method for adhering wood materials using the same, and a composite wood structure using the same are disclosed. The wood adhesive comprises a first agent and a second agent, wherein the first agent comprises sodium carboxymethyl cellulose having a molecular weight from about 15,000 to about 500,000 and a degree of substitution from about 0.4 to about 2, and the second agent comprises polymeric quaternary amine.
摘要:
An adhesive for bonding a die of an integrated circuit chip comprises an aryl cyanate (ester) resin and/or a diepoxide resin admixed with tetrahydropyranyl-protected hydroxylmethylated phenolic resin or hydroxymethylated poly(hydroxystyrene) optionally further containing an electrically or thermally conductive filler.
摘要:
An adhesive is provided for bonding cyanate ester composite parts together which is also plateable with metal once chemically etched. The adhesive comprises a polymeric matrix and a filler of cyanate ester polymer. The polymeric matrix comprises at least one polyepoxide resin and a curing agent, while the cyanate ester polymer filler is present in the adhesive as a powder. In practice, the present adhesive is applied to the surface of cyanate ester composite articles to be bonded and is allowed to cure at room temperature. Thereafter, the surface of the assembly is chemically etched and then plated with metal. The present adhesive enable the complete coverage of the cyanate ester composite assembly with the plated metal, including the adhesive bondlines. A cyanate ester resin structure assembled with the present adhesive composition may, upon plating, replace certain metallic components in such applications as aircraft, spacecraft, and automobiles given its highly conductive and comprehensive metallic coating.
摘要:
In accordance with the present invention, there are provided adhesive formulations containing small amounts of bleed control agent, which render the invention compositions extremely resistant to resin bleed. Several different types of bleed control agents are contemplated for use in the practice of the present invention, e.g., cationic surfactants, tertiary amines, tertiary phosphines, amphoteric surfactants, polyfunctional compounds, and the like, as well as mixtures of any two or more thereof.
摘要:
Remoistenable hot melt adhesives are prepared from a poly(alkyloxazoline), a diluent and, optionally, a tackifier, plasticizer, stabilizer and non-block additive.
摘要:
AN ADHESIVE IS PROVIDED THAT CONSISTS ESSENTIALLY OF (1) A POLYBENZOTHIAZOLE MODIFIED BY REACTION WITH 4-AMINOPHTHALIMIDE, (2) ALUMINUM AND (3) ZINC OXIDE. THE ADHESIVE IS PARTICULARLY USEFUL IN BONDING STRUCTURAL MEMBERS, E.G., THOSE FABRICATED FROM STAINLESS STEEL OR TITANIUM, THAT ARE SUBJECTED TO HIGH TEMPERATURES AS IN THE OPERATION OF HIGH PERFORMANCE AIRCRAFT.
摘要:
There is provided an epoxy composition which has difficulty in precipitating a crystal during storage, is homogeneous and can be stored for a long period; and a cured product of the composition having excellent transparency, heat resistance, and light resistance can be obtained on curing. An α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including β-type tris-(2,3-epoxypropyl)-isocyanurate in the crystal in a ratio of 2% by mass to 15% by mass. A method for producing the α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including step (i) separating β-type tris-(2,3-epoxypropyl)-isocyanurate contained in a tris-(2,3-epoxypropyl)-isocyanurate solution from the solution as a solid to obtain a crystal with an increased content ratio of α-type tris-(2,3-epoxypropyl)-isocyanurate.
摘要:
Disclosed are adhesives comprising a first compound comprising three or more 1,2-dihydroxybenzene groups; and a second compound that is a functionalized polymer; wherein the first compound and second compound are in the form of a mixture, and wherein the adhesive has adhesive properties when wet. Additional embodiments to methods of preparing an adhesive, adhesives prepared by the method, and articles prepared from the adhesive are disclosed.