PURPOSE: To provide a new low-viscosity resin easy to handle, causing no crystallization even under low temperatures, having favorable physical properties, consisting of an adduct from a specific epoxy resin and a specified amount of a 10-30C aliphatic monocarboxylic acid.和泉 昭宏...
PROBLEM TO BE SOLVED: To obtain the subject resin capable of exhibiting excellent low viscosity, forming a cured product having excellent moisture resistance, water resistance, impact resistance and adhesion and useful as a semiconductor sealing material, a coating material, etc., by introducing a sp...
The invention provides an epoxy resin composition, a novel epoxy resin, a novel phenol resin and a semiconductor encapsulating material. The cured article of the epoxy resin composition has superior characteristics in flame retardancy, heat-resistant and curing. The epoxy resin composition is a prefer...
Reactive coal tar pitches may be incorporated into an epoxy resinbasefor curing with amine, amine adduct, or with a polyamide resin. The derived coatings have excellent chemical resistance and are not brittle; they hence find use as pipeline, tank and marine coatings. ...
HARDENER FOR COLD HARDENING EPOXY RESIN ADHESIVES HAVING FAST HARDENINGAn adduct AD obtained from the reaction of at least one novolak glycidyl ether containing an average of 2.5 to 4 epoxy groups per molecule with an amine mixture including bis(6-aminohexyl)amine and at least one amine A1 ...
摘要: PURPOSE: To obtain an epoxy resin composition, containing a naphthol aralkyl resin and a phenol-dicyclopentadiene resin as a curing agent, excellent in all the heat and moisture resistance, adhesion, mechanical properties and operating efficiency and useful for sealing IC....
when mixed with the epoxy resin, greatly improves the heat stability which is extremely important in controlling the hardening reaction, extends the working life (the stability of the mixture solution of an epoxy resin and a hardener or the like) and improves the hardening characteristics at low ...
27. Optimal uniform particles dispersion in epoxy resin is also a critical factor that requires to be achieved for a smooth load transfer between epoxy and fillers26. Although the modified epoxy with particles exhibits a promising future with excellent toughening performance, microcracks still formed ...
;CONSTITUTION: As for epoxy resin, bisphenol A, novolak-type epoxy resin or other material is used. And, phenol resin, melamine resin or other material is used for a bridging agent and a hardening agent. For a hardening accelerator which is used as occasion arises, phosphorus and/or ...
PROBLEM TO BE SOLVED: To obtain a resin composition for casting, having excellent flame retardance, electric/mechanical characteristics without using a halogen compound, an antimony compound and a phosphorus compound at all and to provide an electric part device such as a high-voltage transformer, ...