Abstract:
The present invention relates to a novel epoxy resin having improved heat-resistance, thermal expansion properties and processibility, and to a thermosetting resin composition comprising the same. To this end, the present invention provides an epoxy resin of Chemical Formula 1 as disclosed in the Description, an epoxy resin composition comprising the same, and a packaging, substrate and transistor formed thereof. When a composition that contains an epoxy resin with a specific side functional group according to the present invention and/or an epoxy resin with a specific core structure is cured, a filler forms a strong chemical bond with the epoxy resin, thereby maximizing filling effects of the filler for the epoxy resin. Moreover, with the specific core structure, heat resistance and heat expansion properties of a cured product are substantially improved (CTE is reduced), and enhanced glass transition properties, strength and processability are demonstrated.
Abstract:
The present invention relates to a novel epoxy compound having a spacer between a core and an alkoxysilyl group, a method for preparing the same, a composition comprising the same, a cured product, and a use thereof. The epoxy compound exhibits excellent heat-resistant characteristics, particularly a low coefficient of thermal expansion and a high glass transition temperature (which includes Tg-less which does not exhibit glass transition temperature), and an improved brittleness in a composite and/or excellent flame retardant characteristics in a cured product. The present invention provides: an epoxy compound having an alkoxysilyl group which has passed through a spacer group which has at least two epoxy groups, at least one alkoxysilyl group, and a predetermined number of hydrogen, hydroxy groups and/or alkenyl groups; a method for preparing the epoxy compound by means of a step of introducing a spacer group and an epoxy group and an alkoxysilylation step; a method for preparing the epoxy compound by means of a step of introducing a spacer group and an epoxy group, an alkenylation step and an alkoxysilylation step; a composition comprising the epoxy compound; and a cured product and a use thereof. The epoxy composition comprising an epoxy compound having an alkoxysilyl group which has passed through a spacer group according to the present invention exhibits enhanced heat-resistant characteristics, i.e. effects of reducing CTE, increasing glass transition temperature or exhibiting no glass transition temperature (hereinafter referred to as 'Tg less') in a composite. Furthermore, the epoxy composition exhibits improved brittleness. In addition, the cured product of the epoxy composition comprising the epoxy compound having an alkoxysilyl group which has passed through a spacer group according to the present invention exhibits excellent flame retardant characteristics due to introduction of the alkoxysilyl group.
Abstract:
The present invention relates to an epoxy compound having an alkoxysilyl group, a method for preparing same, a composition and cured material comprising same, and usage thereof. A composite comprising the epoxy compound exhibits superior heat-resistant characteristics, or more specifically, the composite has a low coefficient of thermal expansion (CFE) and a high glass transition temperature or is Tg-less, and/or a cured material comprising the epoxy compound exhibits flame retardant properties and obviates the need for a separate silane coupling agent. The present invention provides: an epoxy compound having an alkoxysilyl group having, in a core, at least one substituent group of the chemical formula S1, and at least two epoxy groups; a method for preparing the epoxy compound by means of allylation of a starting material, Claisen rearrangement, glycidylation, and alkoxysilylation; an epoxy composition comprising the epoxy compound; and cured material of the compound and usage thereof. The novel composite of a composition comprising the epoxy compound having an alkoxysilyl group enhances chemical bonding, within the epoxy compound, of the alkoxysilyl group and filler, and additionally enhances the chemical bonding efficiency during the formation of the epoxy composite, which is due to the chemical bonding between the alkoxysilyl groups of the epoxy compound having an alkoxysilyl group. Accordingly, the composite exhibits superior heat-resistant characteristics, that is, the composite has a low CTE and a high glass transition temperature or is Tg-less. Additionally, the cured material resulting from the composition comprising the epoxy composition exhibits superior flame-retardant characteristics.
Title translation:NEUARTIGESHÄRTEMITTELMIT ALKOXYSILYLGRUPPE,VERFAHREN ZUR HERSTELLUNG DAVON,ZUSAMMENSETZUNG DAMIT,GEHÄRTETESPRODUKT UND VERWENDUNG DAVON
Abstract:
The present invention relates to a novolac hardener having an alkoxysilyl group, the novolac hardener exhibiting excellent heat resistance characteristics, such as a low coefficient of thermal expansion (CTE) and an increase in the glass transition temperature, when forming a composite; a method for preparing the same; a composition containing the same; a hardened product; and a use thereof. According to an embodiment of the present invention, provided are a novolac hardener having an alkoxysilyl group of chemical formulas I-1 to I-4; a method for preparing the novolac hardener having an alkoxysilyl group of chemical formulas I-1 to 1-4 through alkenylation and alkoxysilylation of the novolac hardener; a method for preparing the novolac hardener having an alkoxysilyl group of chemical formulas I-1 to 1-4 through alkoxysilylation of the novolac hardener; a composition containing the novolac hardener having an alkoxysilyl group of chemical formulas I-1 to I-4; a hardened product thereof; and a use thereof. A composite comprising the novel hardener having an alkoxysilyl group according to the present invention exhibits a low CTE and a high glass transition temperature through a chemical bond between the alkoxysilyl group of the hardener and a phenol or epoxide group as well as a chemical bond between the alkoxysilyl group of the hardener and a filler.
Abstract:
The present invention relates to: an alkoxysilyl-based epoxy compound which does not require a separate silane coupling agent and exhibits outstanding heat resistance, and more specifically a low coefficient of thermal expansion (CTE) and a high glass transition temperature in a synergistic effect in a composite material; a composition and a cured article comprising same; a use for same; and a production method for an epoxy compound having an alkoxysilyl group. Accordingly, the present invention provides: an epoxy compound having an epoxy group and an alkoxysilyl group; and a composition comprising the epoxy compound together with a curing agent, a filler and/or a reaction catalyst or the like, and various uses for same including in a cured article and electronic components. According to the present invention, the novel epoxy composition comprising the epoxy compound having the alkoxysilyl group exhibits improved heat resistance, which is to say an effect whereby the CTE of the epoxy composite is reduced and whereby the glass transition temperature is elevated or a glass transition temperature is not exhibited (referred to hereinbelow as "Tg less"), because of chemical bond formation due to a chemical reaction of the alkoxysilyl group and the filler (fibres and/or particles) and a chemical reaction between alkoxysilyl groups, in the composite material and/or the cured article. Moreover, the cured article comprising the epoxy compound having the alkoxysilyl group according to the present invention exhibits outstanding flame retardancy due to the inclusion of the alkoxysilyl group.
Abstract:
The present invention relates to an alkoxy silyl-based epoxy compound exhibiting excellent heat resistant characteristics in a composite, and more particularly, exhibiting a low coefficient of thermal expansion (CTE) and the effect of significantly increasing the glass transition temperature in a composite and eliminating the necessity of a separate silane coupling agent. The present invention also relates to a composition comprising the compound, to a cured product thereof, to the use thereof and to a method for preparing an epoxy compound comprising an alkoxy silyl group. Thus, according to the present invention, provided are an epoxy compound comprising an epoxy group and an alkoxy silyl group, a composition comprising the epoxy compound and a curing agent, a filler and/or a reaction catalyst, a cured product thereof and the use thereof such as in an electronic component or the like. The epoxy composition comprising an epoxy compound having a novel alkoxy silyl group according to the present invention is obtained by a chemical bond resulting from a chemical reaction between the alkoxy silyl group and a filler (fiber and/or particle) and a chemical reaction between alkoxy silyl groups in a composite and/or a cured product, thus exhibiting effects of improved heat resistant characteristics, that is, a lower CTE and a higher glass transition temperature or no glass transition temperature (hereinafter, referred to as 'Tg-less') in an epoxy composite. Furthermore, the cured product comprising an epoxy compound having an alkoxy silyl group according to the present invention exhibits excellent flame resistance by introducing the alkoxy silyl group thereto.
Abstract:
Disclosed are an epoxy compound having an alkoxysilyl group, a composite of which exhibits good heat resistant properties and/or a cured product of which exhibits good flame retardant properties, a method of preparing the same, a composition comprising the same, a cured product of the composition and a use of the composition. An alkoxysilylated epoxy compound comprising at least one of Chemical Formula S1 substituent and at least two epoxy groups in a core, a method of preparing the epoxy compound by an allylation, a claisen rearrangement, a glycidylation and an alkoxysilylation, an epoxy composition comprising the epoxy compound, a cured product of the composition and a use of the composition are provided. The composite of the composition comprising the alkoxysilylated epoxy compound exhibits improved chemical bonding,-good heat resistant properties, a low CTE, a high glass transition temperature or Tg-less via the enhanced chemical bonding efficiency of alkoxysilyl group. The cured product of the composition exhibits good flame retardant properties.
Abstract:
Provided are an alkoxysilylated epoxy compound, a composite of which exhibits good heat resistance properties, low CTE and increased glass transition temperature, and a cured product thereof exhibits good flame retardancy without requiring separate coupling agent, a method for preparing the same and a composition and a cured product including the same. An alkoxysilylated epoxy compound including an epoxy group and at least one alkoxysilyl group of an S1 substituent selected from Formulae S11 to S15 or an S2 substituent selected from Formulae S21 to S25; a method for preparing the same by epoxy ring-opening reaction of starting material and alkoxysilylation, an epoxy composition including the epoxy compound, and a cured product and a use of the composition, are provided. Since chemical bonds may be formed between alkoxysilyl group and filler and between alkoxysilyl groups, chemical bonding efficiency of the composite may be improved.