- THERMOSETTING ALKOXYSILYL COMPOUND HAVING TWO OR MORE ALKOXYSILYL GROUPS, COMPOSITION AND CURED PRODUCT COMPRISING SAME, USE THEREOF, AND METHOD FOR PREPARING ALKOXYSILYL COMPOUND
-
The present invention relates to: a thermosetting alkoxysilyl compound (hereinafter, referred to as “alkoxysilyl compound”)having two or more alkoxysilyl groups showing excellent heat-resistance characteristics in a composite; a composition and a cured product comprising the same; a use thereof; and a method for preparing an alkoxysilyl compound. The composition of an alkoxysilyl compound, comprising a novel alkoxysilyl compound according to the present invention shows, in a composite, improved heat-resistance characteristics, i.e., an effect of decreasing the CTE of the composition of an alkoxysilyl compound and not showing a glass transition temperature (hereinafter, referred to as “Tg-less”). Further, the cured product comprising an alkoxysilyl compound according to the present invention shows excellent flame retardant properties due to the alkoxysilyl groups.
- -
-
-
- Bisphenol-based epoxy compound using thiol-ene reaction and method for preparing the same, and composite of organic-inorganic materials comprising a cured product thereof and method for preparing the composite
-
The present invention relates to a bisphenol-based epoxy compound having an alkoxysilylalkyl-S-alkyl group and a method for preparing the same, a composite of organic-inorganic materials comprising the cured product and a method for preparing the composite. The novel bisphenol-based epoxy compound can provide a composite which shows improved thermal resistance and thermal expansion properties and has excellent hardness when being used for manufacturing high-integration and high-performance electronic components such as a next-generation semiconductor substrate and PCB.COPYRIGHT KIPO 2017
- -
-
-
- METHOD OF CONSISTENTLY PRODUCING DIALLYLBISPHENOLS
-
The purpose of the present invention is to provide a method of consistently producing high-quality diallylbisphenols with high yields from bisphenols. This method involves steps (1) through (3) below, and enables the consistent production of diallylbisphenols from bisphenols. (1) A step for reacting allyl halides and bisphenols or alkali metal salts thereof in a cellosolve solvent in the presence or absence of basic alkali metal salts, (2) a step for separating inorganic salt by-products from a reaction solution obtained in step (1), and (3) a step for heating and subjecting to a rearrangement reaction the reaction solution obtained in step (2).
- -
-
Paragraph 0104-0107
(2017/01/23)
-
- ALKOXYSILYL COMPOUND HAVING AT LEAST TWO ALKOXYSILYL GROUPS, COMPOSITION, CURED PRODUCT THEREOF, USE THEREOF AND PREPARING METHOD OF ALKOXYSILYL COMPOUND HAVING AT LEAST TWO ALKOXYSILYL GROUPS
-
The present invention relates to an alkoxysilyl compound having two or more alkoxysilyl groups (hereinafter, referred to as ″alkoxysilyl compound″) showing an excellent heat-resistance in a composite, a composition and a cured product comprising the same, an use thereof, and a method for preparing the alkoxysilyl compound. The alkoxysilyl composition comprising the novel alkoxysilyl compound, according to the present invention, in a composite, shows improved heat-resistance, i.e., an effect of decreasing CTE of the alkoxysilyl composition, or an effect of increasing glass transition temperature or not showing glass transition temperature (hereinafter, referred to as ″Tg less″) by forming a chemical bond between the alkoxysilyl group and a filler (fibers and/or particles). Further, the cured product comprising the alkoxysilyl compound according to the present invention shows an excellent flame retardant property due to the alkoxysilyl group. Moreover, when the alkoxysilyl composition according to the present invention is applied to a metal film of a substrate, an excellent adhesion to the metal film is exhibited due to a chemical bond between a functional group on a surface of the metal film and the alkoxysilyl group.
- -
-
-
- COMPOSITION AND CURED ARTICLE COMPRISING INORGANIC PARTICLES AND EPOXY COMPOUND HAVING ALKOXYSILYL GROUP, USE FOR SAME, AND PRODUCTION METHOD FOR EPOXY COMPOUND HAVING ALKOXYSILYL GROUP
-
There is provided a composition including an alkoxysilylated epoxy compound, a composition of which exhibits good heat resistance properties, low CTE and high glass transition temperature or Tg-less and not requiring a separate coupling agent, and inorganic particles, a cured product formed of the composition, and a use of the cured product. An epoxy composition including an alkoxysilylated epoxy compound and inorganic particles, an epoxy composition including an epoxy compound, inorganic particles and a curing agent, a cured product of the composition, and a use of the composition are provided. Since chemical bonds may be formed between the alkoxysilyl group and the inorganic particles and between the alkoxysilyl groups, a composition of the composition including the alkoxysilylated epoxy compound and the inorganic particles exhibits improved heat resistance properties, decreased CTE, and increased glass transition temperature or Tg less.
- -
-
Page/Page column
(2015/06/03)
-
- EPOXY COMPOUND HAVING ALKOXYSILYL GROUP, METHOD OF PREPARING THE SAME, COMPOSITION AND CURED PRODUCT COMPRISING THE SAME, AND USES THEREOF
-
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, and a cured product 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, an epoxidation and an alkoxysilylation, an epoxy composition comprising the epoxy compound, and a cured product and a use of the composition are provided. The composite of the disclosed exhibits improved chemical bonding, good heat resistant properties, a low CTE, a high glass transition temperature or Tg-less The cured product of the composition exhibits good flame retardant properties.
- -
-
-
- Investigations of thiol-modified phenol derivatives for the use in thiol-ene photopolymerizations
-
Thiol-ene photopolymerizations gain a growing interest in academic research. Coatings and dental restoratives are interesting applications for thiol-ene photopolymerizations due to their unique features. In most studies the relative flexible and hydrophilic ester derivative, namely pentaerythritoltetra(3-mercaptopropionate) (PETMP), is investigated as the thiol component. Thus, in the present study we are encouraged to investigate the performance of more hydrophobic ester-free thiol-modified bis-and trisphenol derivatives in thiol-ene photopolymerizations. For this, six different thiol-modified bis-and trisphenol derivatives exhibiting four to six thiol groups are synthesized via the radical addition of thioacetic acid to suitable allyl-modified precursors and subsequent hydrolysis. Compared to PETMP better flexural strength and modulus of elasticity are achievable in thiol-ene photopolymerizations employing 1,3,5-triallyl-1,3,5-triazine-2,4,6-trione (TATATO) as the ene derivative. Especially, after storage in water, the flexural strength and modulus of elasticity is twice as high compared to the PETMP reference system.
- Reinelt, Sebastian,Tabatabai, Monir,Fischer, Urs Karl,Moszner, Norbert,Utterodt, Andreas,Ritter, Helmut
-
p. 1733 - 1740
(2014/08/18)
-
- EPOXY COMPOUND HAVING ALKOXYSILYL GROUP, METHOD FOR PREPARING SAME, COMPOSITION AND CURED MATERIAL COMPRISING SAME, AND USAGE THEREOF
-
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.
- -
-
-
- Highly stable self-crosslinked anion conductive ionomers for fuel cell applications
-
We report a simple method for the preparation of self-crosslinked anion conductive ionomers (SCL-ACIs) via polycondensation-Friedel-Crafts alkylation reactions without using any catalyst or crosslinking agent. The reported alkaline stable and methanol impervious SCL-ACIs with 2.45 mequiv. g -1 ion-exchange capacity (IEC) and 68 mS cm-1 hydroxide ion conductivity were assessed as suitable candidates for alkaline direct methanol fuel cell (ADMFC) applications. the Partner Organisations 2014.
- Jasti, Amaranadh,Shahi, Vinod K.
-
p. 19238 - 19241
(2014/05/20)
-
- Selective O-allylation of bisphenol A: Toward a chloride-free route for epoxy resins
-
The O-allylation of bisphenol A (BPA) has been performed with the most selective catalysts for O-allylation of phenols reported previously. Both the cyclopentadienyl-ruthenium catalysts and the palladium-diphosphine catalysts are capable of selectively performing single and double O-allylation of BPA. An intriguing solvent effect is observed; the choice of the solvent is of key importance for both conversion and selectivity. The use of an excess of diallyl ether as allylating agent results in relatively high yields of the bisallyl ether of bisphenol A, while maintaining the high selectivity for O-allylation.
- Van Rijn, Jimmy A.,Guijt, Marieke C.,Bouwman, Elisabeth,Drent, Eite
-
experimental part
p. 207 - 211
(2012/04/23)
-
- 2,2-BIS(3-ALLYL-4-HYDROXYPHENYL)PROPANE
-
A high-purity 2,2-diallylbisphenol A which is easy to handle and is solid. It is for use as raw materials for electronic materials, such as a hardener for semiconductor encapsulation materials and an additive for polyimide resins. It is a 2,2-bis(3-allyl-4-hydroxyphenyl)propane which is solid at 30°C and represented by the formula (1). [Chemical formula 1] (1) The solid 2,2-diallylbisphenol A is obtained by subjecting liquid 2,2-diallylbisphenol A obtained through Claisen rearrangement to purification by an alkali treatment to obtain liquid 2,2-diallylbisphenol A having a purity of about 95 wt.% or higher and adding seed crystals to the purified compound to crystallize it.
- -
-
Page/Page column 8-9; 1/1
(2008/06/13)
-
- Synthesis, cytotoxicity, and antiviral activities of new neolignans related to honokiol and magnolol
-
A series of new bisphenol derivatives bearing allylic moieties were synthesized as potential analogs of honokiol and/or magnolol. Certain compounds exhibited specific anti-proliferation activity against SVR cells and moderate anti-HIV-1 activity in primary human lymphocytes. Compound 5h was the most potent compound and its anti-tumor activity was evaluated in vivo.
- Amblard, Franck,Govindarajan, Baskaran,Lefkove, Benjamin,Rapp, Kimberly L.,Detorio, Mervi,Arbiser, Jack L.,Schinazi, Raymond F.
-
p. 4428 - 4431
(2008/02/11)
-
- METHOD FOR PURIFYING DIALLYLBISPHENOL COMPOUND
-
Disclosed is a method for purifying a diallylbisphenol compound wherein a diallylbisphenol compound represented by the following general formula (1): (wherein R represents a hydrogen atom or a methyl group) is dissolved in a nonaqueous organic solvent and then cleaned with an aqueous alkali-containing solution at least once or more times. Also disclosed is a method for purifying a diallylbisphenol compound wherein an aqueous alkaline solution is added to a solution wherein the above diallylbisphenol compound is dissolved in a nonaqueous organic solution, and the thus-obtained aqueous alkali-containing solution of diallylbisphenol compound is neutralized after being cleaned with a nonaqueous organic solvent at least once or more times, and then extracted with a solvent which is distilled away after the extraction. With this method, 2,2-diallylbisphenol A or 2,2-diallylbisphenol C, which is useful as a curing agent for semiconductor sealing materials or an additive for polyimide resins, can be easily obtained with high purity.
- -
-
Page/Page column 8-9
(2008/06/13)
-
- Novel diepoxide derivatives of diallyl phenolics
-
The present invention relates to the preparation of ethers and esters of diallylphenols and the epoxidation of the diallyl moiety to provide bis-epoxide ether and ester intermediates useful in the preparation of epoxy resins.
- -
-
Page/Page column 4
(2010/02/11)
-
- Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate
-
A process for producing continuously an aromatic polycarbonate oligomer by reacting an aromatic dihydroxy compound and an alkali metal base or an alkaline earth metal base with a carbonyl halide compound comprises: (1) feeding continuously to a tank reactor an aromatic dihydroxy compound, water, a molecular weight controlling agent, a polymerization catalyst, a carbonyl halide compound, and an organic solvent, and an alkali metal base or an alkaline earth metal base in an amount of 1.15-1.6 equivalents based on the aromatic dihydroxy compound, (2) carrying out the reaction with a residence time as defined by the following formula, where X is an amount of the polymerization catalyst in terms of mole % based on the amount of mole of the aromatic dihydroxy compound fed per unit time, and Y is a residence time (min.), and (3) continuously withdrawing the reaction mixture from the tank reactor to obtain an aromatic polycarbonate oligomer having a number average molecular weight of 1,000-10,000. An aromatic polycarbonate is produced by polycondensation of the aromatic polycarbonate oligomer.
- -
-
-
- Method for preparing aromatic bischloroformate compositions
-
Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.
- -
-
-
- Hydrogen Bonding. Part 18. Gas-Liquid Chromatographic Measurements for the Design and Selection of some Hydrogen Bond Acidic Phases Suitable for Use as Coatings on Piezoelectric Sorption Detectors
-
A number of involatile liquids based on 4,4'-isopropylidenediphenol (bisphenol-A) or other bisphenols have been prepared as candidate coatings for piezoelectric sorption detectors.The liquids have been used as GLC stationary phases, and gas-liquid partition coefficients of a series of solutes have been obtained for these phases.Application of the linear solvation energy equation below has revealed that two particular liquids (8 and 9) possess very large hydrogen bond acidities coupled to rather small hydrogen bond basicities, and hence might be suitable as coatings with selectivity towards solutes that are hydrogen bond bases.One other compound (10) is not suitable as a coating because it is a solid at room temperature, but it has very considerable hydrogen bond acidity, and may be suitable as a novel GLC stationary phase.In the linear solution energy equation above, K is the gas-liquid partition coefficient for a series of solutes on a given phase, and the explanatory variables R2, ?H2, αH2, βH2 and log L16 are solute parameters that we have described before.A term by term analysis of the equation can be used to evaluate quantitatively how specific solute-solvent interactions influence the magnitude of the various log K values.
- Abraham, Michael H.,Hamerton, Ian,Rose, John B.,Grate, Jay W.
-
p. 1417 - 1423
(2007/10/02)
-
- Bischoloroformate preparation method with phosgene removal and monochloroformate conversion
-
Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid (e.g., methylene chloride) and in the presence of an aqueous alkali metal or alkaline earth metal base, at a pH below about 8. After all solid dihydroxyaromatic compound has been consumed, the pH is raised to a higher value in the range of about 7-12, preferably 9-11, and maintained in said range until a major proportion of the unreacted phosgene has been hydrolyzed. At the same time, any monochloroformate in the product may be converted to bischloroformate.
- -
-
-
- Cyclic monocarbonate bishaloformates
-
Cyclic monocarbonate bischloroformates are prepared by the reaction of a carbonyl halide such as phosgene with a bridged substituted resorcinol or hydroquinone such as bis(2,4-dihydroxy-3-methylphenyl)methane or bis(2,5-dihydroxy-3,4,6-trimethylphenyl)methane in the presence of aqueous alkali metal hydroxide. The cyclic monocarbonate bischloroformates may be used for the preparation of linear or cyclic polycarbonates containing cyclic carbonate structural units, which may in turn be converted to crosslinked polycarbonates.
- -
-
-
- Polyetherimide bisphenol compositions
-
Polyetherimide bisphenols and bischloroformates are prepared by the reaction of dianhydrides or certain bisimides with aminophenols or mixtures thereof with diamines. They are useful as intermediates for the preparation of cyclic heterocarbonates, which may in turn be converted to linear copolycarbonates. The bisphenols can also be converted to salts which react with cyclic polycarbonate oligomers to form block copolyetherimidecarbonates.
- -
-
-
- Camoform analogs as potential agents against mefloquine resistant malaria
-
Analogs of 5,5'-di-2-propenyl-3,3'-bis(1-pyrrolidinylmethyl) [1,1'-biphenyl]-4,4'-diol 2 which exhibited modest activity against chloroquine- and mefloquine-resistant lines of Plasmodium berghei were prepared. Modifications of the Mannich side chain, the propenyl group, and analogs wherein a bridging atom was inserted between the phenyl rings were prepared. None of the structural changes provided an improvement in antimalarial activity over the lead compound in the P. berghei mouse system.
- Hung,Werbel
-
-
