Abstract:
Coating compositions may protect substrates from environmental exposure. A coating composition may comprise an epoxy resin component, a polyol, a cardanol-based diluent, and a crosslinking agent. The coating composition may resist chalking and extend the recoat window.
Abstract:
A novel epoxy resin composition capable of fast curing and having an increased latency without negatively impacting the glass transition temperature or mechanical performance of the composition; the composition including a liquid-based hardener composition containing a combination of (a) at least one amine-based hardener, (b) at least one catalyst such as 2,4,6-tris(dimethylaminomethyl)phenol, and (c) at least one sulfanilamide.
Abstract:
A composition including an amidoamine curing agent composition or a polyamide curing agent composition are disclosed. The composition includes the reaction products of (1) an amine component including at least one multifunctional amine of structure (I): wherein each R is independently H or CH 2 CH 2 CH 2 NH 2 ; R 1 is H, CH 3 CH 2 CH 2 N-, C1-C21 alkyl, or C1-C21 alkenyl; n is 2; and m is 1 or 2, with (2) a fatty acid or ester component selected from the group consisting of a dimer fatty acid or ester component, a monofunctional fatty acid or ester component, and combinations thereof. The amidoamine curing agent composition remains as liquid at ambient temperature.
Abstract:
Methods of coating an inner surface of a pipe and the pipes coated thereby; the methods including mixing a first composition with a second composition to form a coating composition, the first composition including epoxy resin and diluent; and the second composition including a curing agent, the curing agent including a phenalkamide curing agent; and applying the coating composition to the inner surface of the pipe.
Abstract:
The present invention deals with a novel aromatic di-isoimide compound that has utility as a catalyst and as a curing agent in epoxy compositions. The di-isoimide serves effectively as a thermally activated latent catalyst in epoxy curing, thereby increasing shelf life, and avoids premature cross-linking. Embodiments of useful compositions comprising the novel di-isomide, as well as a method of preparing the compound are provided herein. The preparation of novel laminated articles and printed wiring boards, including encapsulated printed wiring boards, are also disclosed. The inventive compound described herein can also be used as a flame retardant in thermoplastic and thermoset polymers.
Abstract:
An adduct and a process for preparing such adduct, wherein the adduct includes at least one reaction product of an epoxy resin material (A) and a compound (B); wherein the epoxy resin material (A) comprises a glycidyl ether or glycidyl ester of an alkanolamide; and compound (B) comprises a compound having two or more reactive hydrogen atoms per molecule, and the reactive hydrogen atoms are reactive with epoxide groups. A curable epoxy resin composition can be prepared from (i) the adduct described above, and (ii) one or more epoxy resins other than the epoxy resin material (A). A cured epoxy resin may be prepared from such curable composition including an article such as a coating, an electrical or structural laminate, an electrical or structural composite, a filament winding, a molding, a casting, and an encapsulation.
Abstract:
A composition useful as underfill sealant for the connection of a semiconductor device to a circuit board is reworkable for more easy separation from the semiconductor device and comprises a curable resin having at least one oxirane or thiirane linkage substituted on at least three of the oxirane or thiirane carbon atoms with an alkyl, alkenyl or aryl substituent along with a curing agent selected from anhydrides, amines, amides, imidazoles, and combinations thereof.
Abstract:
The invention provides a method of forming a void-free laminate, comprising the steps of: (a) enclosing a partially impregnated prepreg (6) in a vacuum envelope (22), said partially impregnated prepreg comprising a fiber layer partially impregnated with a resin composition; and (b) heating said partially impregnated prepreg under vacuum (24) to withdraw air present in said partially impregnated prepreg and to cause said resin composition (i) to fully infuse into said fiber layer and (ii) to cure thereby forming said void-free laminate. The present invention further provides novel combinations of modified epoxy resins that may be employed with the methods disclosed. The void-free laminates may be utilized for the manufacture of parts for the aerospace and aircraft industries.