Abstract:
PURPOSE: A phenylene phosphoramidate compound, a manufacturing method thereof, and a flame-retardant thermoplastic resin composition containing thereof are provided to secure the fire retardant property to various thermoplastic resins with the small amount of phenylene phosphoramidate compound. CONSTITUTION: A phenylene phosphoramidate compound is marked with chemical formula 1. In the chemical formula 1, R1 and R2 are selected from the group consisting of alkyl or alkoxy with 1~6 carbons, and aryl or aryloxy with 6~12 carbons. A flame-retardant thermoplastic resin composition contains the following: 100 parts of an acrylonitrile butadiene styrene resin, an ethylene-vinyl acetate resin, their copolymers, and their alloy by weight; and 10~50 parts of phenylene phosphoramidate compound by weight.
Abstract:
본 발명은 피페라진에 의해 가교된 환형 포스파젠 및 이를 함유한 난연성 수지 조성물에 관한 것으로서, 더욱 상세하게는 환형의 포스파젠 화합물의 인(P)과, 피페라진의 질소(N)가 가교되어 이루어짐으로서, 할로겐이 함유되지 않아 친환경적이고, 탄화된 챠르의 발포성이 증가되어 신규 난연제로 용이하게 사용되어 지는 피페라진에 의해 가교된 환형 포스파젠과, 상기 피페라진에 의해 가교된 환형 포스파젠을 통상의 수지 성분에 일정량 함유시켜 다른 성분과의 상용성, 공정상의 용이성, 기계적 물성 및 열 안정성이 우수한 난연성 수지 조성물에 관한 것이다. 가교된 환형 포스파젠, 피페라진, 난연제
Abstract:
A cyclic phosphazene crosslinked by piperazine is provided to contain no halogen, show high heat-resistance due to a crosslinked structure by the piperazine, and have high flame-retardant effect by forming a thick char film on the surface of a resin. A flame-retardant resin composition comprising the same is provided to show excellent compatibility with other resinous ingredients, process easiness, mechanical properties and thermostability. A cyclic phosphazene crosslinked by piperazine is obtained by crosslinking a cyclic phosphazene compound represented by a formula(1) with piperazine and is characterized in that 1-90% of the piperazine regarding the total number of OR group(s) of the cyclic phosphazene compound is crosslinked. In the formula(1), R is an aromatic group selected from the group consisting of phenyl, naphthyl and benzyl substituted or unsubstituted by one to three C1-4 alkyl(s); and m is an integer from 3 to 25. A flame-retardant resin composition comprises a resin ingredient consisting of a thermosetting resin, a thermoplastic resin, or a mixture thereof, and a retardant, wherein 1-80 parts by weight of the cyclic phosphazene crosslinked by the piperazine as the retardant is contained regarding 100 parts by weight of the resin ingredient.
Abstract:
A dicing die bonding film is provided to easily perform the die bonding of a semiconductor wafer by maintaining superior peeling force at a boundary between an adhesive layer and a wafer bonding layer. A dicing die bonding film is formed by sequentially stacking a supporting layer(10), a point/adhesive layer(20) having an adhesive layer(21) and a reinforcement layer(22), a wafer bonding layer(30), and a wafer bonding protection layer. Peeling force between the supporting layer and the adhesive layer is in a range, 3 to 30 N/20mm. Peeling force between the reinforcement layer and the wafer bonding layer is in a range, 0.01 to 0.3 N/20mm.
Abstract:
본 발명은 황함유 이소시아네이트 화합물과 광학렌즈용 황함유 우레탄계 수지에 관한 것으로서, 더욱 상세하게는 분자 내에 2개 이상의 황원자를 함유한 신규 이소시아네이트 화합물을 제조하고, 이를 2개 이상의 티올관능기를 가지는 폴리티올을 혼합하여 광학재료용 황함유 우레탄계 수지를 제조함으로써, 높은 굴절율을 가지면서, 광안정성, 고투명성 등의 우수한 광학 특성을 가져 플라스틱 렌즈와 같은 광학재료로서 유용하게 사용할 수 있는 신규 이소시아네이트 화합물 및 이를 이용한 우레탄계 수지에 관한 것이다. 황, 이소시아네이트 화합물, 폴리티올, 굴절율, 아베수, 렌즈
Abstract:
PURPOSE: A sulfonated polystyrene-lignin composite chelate resin for adsorbing specific heavy metal ions and its preparation method are provided, to improve the physical and chemical stability and the mechanical strength, thereby enhancing the adsorbing property to specific heavy metal ions. CONSTITUTION: The chelate resin is represented by the formula 1, wherein A is H or Na. The method comprises the steps of reacting a spherical styrene-divinylbenzene copolymer with chlorosulfonic acid to chlorosulfonate a phenyl ring and aminating it by using ethylene diamine to prepare the aminated-sulfonamide group-containing copolymer represented by the formula 2; reacting the copolymer of the formula 2 with the hydroxymethyl group-containing lignin represented by the formula 3 to prepare the sulfonimide group-containing copolymer represented by the formula 4; and reacting the copolymer of the formula 4 with acetyl sulfate to introduce a sulfonic acid group into the phenyl ring and reacting the obtained one with sodium sulfite to introduce a sulfonic acid group into lignin.
Abstract:
PURPOSE: A chelate resin for adsorbing specific heavy metal ions and its preparation method are provided, to improve the adsorbing property to specific heavy metal ions by introducing a dithiocarbamic acid group into the main chain and the side chain of a polymer and employing the benzene structure as a spacer, thereby allowing the neighboring dithiocarbamic acid groups to form zigzag structure. CONSTITUTION: The chelate resin is represented by the formula 1, wherein A is H, K or Na. The method comprises the steps of preparing a spherical copolymer represented by the formula 2 by suspension polymerization of styrene and methyl methacrylate using a divinylbenzene as a crosslinking agent; reacting the copolymer of the formula 2 with boron hydride, zinc chloride and N,N'-dimethylaniline to convert a carboxyl ester group into a hydroxymethyl group (-CH2OH), and reacting the obtained one with pyridine and thionyl chloride to convert the hydroxymethyl group into a chloromethyl group and to prepare the chloromethyl group-containing copolymer represented by the formula 3; reacting the copolymer of the formula 3 with zinc chloride and chloromethyl methylether to introduce a chloromethyl group to a phenyl ring and to prepare the copolymer which contains two chloromethyl groups bonded to different positions and is represented by the formula 4; reacting the copolymer of the formula 4 with methyl amine to prepare the aminated copolymer represented by the formula 5; and reacting the copolymer of the formula 5 with carbon disulfide to introduce a dithiocarbamic acid group and neutralizing the obtained one.
Abstract:
The present invention provided with novel 5-benzyloxymethyl-1,2-isoxazoline derivatives of the formula (1), their preparation method and their use as herbicides. The 5-benzyloxymethyl-1,2-isoxazoline derivatives according to the present invention have sufficiently high herbicidal activity against the weeds in the paddy field rice even at low dose rates and excellent selectivity to transferred rice in particular. As thus, the compounds of the present invention are typically useful as herbicides for control of paddy weeds in rice.
Abstract:
PURPOSE: A chelate resin for adsorbing specific heavy metal ions and its preparation method are provided, to improve the adsorbing property to specific heavy metal ions by introducing a sulfonyl dithiocarbamic acid group into the phenyl ring of a spherical polystyrene as a chelate functional group and thereby improving the hydrophilicity and the coordinating property. CONSTITUTION: The chelate resin is represented by the formula 1, wherein A is H, K or Na. The method comprises the steps of preparing a spherical polystyrene by suspension polymerization of styrene using a divinylbenzene as a crosslinking agent, and reacting the spherical polystyrene with chlorosulfonic acid to obtain the chlorosulfonated copolymer represented by the formula 2; aminating the copolymer of the formula 2 by using liquid ammonia to prepare the sulfonamide group-containing copolymer represented by the formula 3; and reacting the copolymer of the formula 3 with carbon disulfide to introduce a dithiocarboxylic group into the copolymer and neutralizing the obtained one.
Abstract:
PURPOSE: A N-(5-isoxazolinylmethyloxyphenyl)-dimethylmaleimide derivative is provided which has excellent stability against a rice plant and shows good herbicidal activity on weeds in a paddy like echor, scpju, moova, cypse, sagpy or so on. CONSTITUTION: The N-(5-isoxazolinylmethyloxyphenyl)-dimethylmaleimide derivative is shown in a chemical formula 1 wherein R is alkyl radical with 1-5 carbon number, phenyl radical or substituted phenyl radical, cyano radical, carboxylic acid or carboxylic ester, heterocyclic or substituted heterocyclic radical. The substituted phenyl radical or substituted heterocyclic radical is simply or mixedly substituted from 1-3 radicals among alkyl radical with 1-3 carbon number, alkoxy radial with 1-3 carbon number, halogen atom, cyano radical, nitro radical, carboxyl radical and carboxylic ester.