摘要:
Gap pads or gap fillers having independently tunable mechanical and thermal properties and methods of making and using thereof are described herein. The gap pads or gap fillers described can be used, for example, to interface a heat generating source and a heat sink.
摘要:
Compounds of the formula (I) as defined herein are useful for stabilizing spandex. Stabilized spandex compositions are obtained by intermixing spandex polymer or prepolymer with stabilizing amounts of one or more compounds of the formula (I). Preferred stabilized spandex polymer or prepolymer compositions exhibit improved color stability.
摘要:
La présente invention concerne l'utilisation d'additifs dérivés du phénol pour diminuer le vieillissement de matériaux à changement de phase (MCP) utilisés comme fluides d'échange thermique dans des systèmes d' échanges de chaleur et de stockage thermique. La présente invention concerne également une composition comprenant un ou plusieurs antioxydants dérivés du phénol et un ou plusieurs MCP, ainsi qu'un dispositif et un procédé pour le stockage, et la redistribution d' énergie thermique.
摘要:
본 발명은 고무용 산화방지제 및 이를 포함하는 합성고무에 관한 것으로서, 더욱 상세하게는 티오 화합물을 함유하는 신규 고무용 산화방지제 및 이를 포함하는 합성고무에 관한 것이다. 본 발명의 상기 산화방지제를 포함하는 고무는 100℃ 이상의 고온에서 열 안정성이 매우 우수하며, 상기 산화방지제는 분자량이 높아 휘발성이 낮은 특성이 있어 친환경적인 고무 제조가 가능하다.
摘要:
The present invention is directed to a process for the production of agglomerates of a sterically hindered phenol antioxidant such that the agglomerates have a balanced hardness so as to resist abrasion during conveyance yet being readily dispersed in a host plastic. Such novel agglomerates are achieved through the use of a processing aid consisting of a solvent selected from the group consisting of methylene chloride, chloroform, toluene, acetone, methylethylketone, xylene, cyclohexane, styrene, methylcyclohexane and hexane having at least one gram of antioxidant dissolved therein per 100 mL of solvent and from 20 to 50 weight percent of an alcohol of the formula ROH wherein R is an alkyl group of 1 to 8 carbon atoms and thereafter using the resulting solution of solvent, alcohol, and antioxidant to form a paste of additional portions of the antioxidant which is thereafter agglomerated and dried. The present invention further provides a novel process for controlling the hardness of an agglomerated sterically hindered phenol antioxidant or a mixture of such antioxidant and a secondary phosphite antioxidant through the use of a processing aid wherein there is employed from 20 to 50 weight percent of an alcohol of the formula ROH and wherein the hardness of the resulting agglomerate is inverse to the amount of alcohol employed in the system.
摘要:
Synergistic composition and method of use are disclosed. The compositions comprise a quinone methide derivative and a hydroxylamine compound. These compositions demonstrate synergism at inhibiting the polymerization of a vinyl aromatic monomer. Preferably the quinone methide derivative is 2,6-di-tert-butyl-4-benzylidene-cyclo-2,5-dienone and the hydroxylamine compound is N,N-bis(hydroxypropyl)-hydroxylamine.
摘要:
The present invention is directed to a process for the production of agglomerates of a blend of a sterically hindered phenol antioxidant and an acid neutralizer such that the agglomerates have a balanced hardness to resist abrasion during conveyance yet being readily dispersed in a host plastic. Such agglomerates are achieved through the use of a processing aid consisting of an alcohol of the formula ROH wherein R is an alkyl group of 1 to 8 carbon atoms, either alone or having up to 80% by volume of a cosolvent selected from the group consisting of methylene chloride, chloroform, toluene, acetone, methylethylketone, xylene, cyclohexane, styrene, methylcyclohexane, and hexane. The cosolvent processing aid has at least 1 gram of antioxidant dissolved therein per 100 mL of solvent. The processing aids are used to form a paste of a mixture of antioxidant and an acid neutralizer. The resulting paste is then subjected to agglomeration and the resulting agglomerates are thereafter dried. Through the controlled use of alcohol in the processing aid there is achieved a control on the hardness of the resulting agglomerates which is inverse to the amount of alcohol employed in the system.
摘要:
An interlayer material for fire resistant laminates comprising a water soluble, glass forming metal phosphate, a water soluble char forming component and a binding agent. The material can be cast-in-place.
摘要:
Die vorliegende Verbindung betrifft neuartige Verbindungen mit stabilisierender Wirkung, insbesondere Stabilisierung gegenüber oxidativem thermischen und/oder actinischem Abbau oder Schädigung von organischen Materialien. Die Verbindungen werden durch die nachfolgend angegebene allgemeine Formel I repräsentiert. Die vorliegende Erfindung betrifft zudem ein Verfahren zur Herstellung derartiger Verbindungen, Zusammensetzungen enthaltend diese Verbindung, ein Verfahren zur Stabilisierung von organischen Komponenten mit Hilfe der stabilisierenden Verbindungen sowie Verwendung der stabilisierenden Verbindungen zur Stabilisierung organischer Materialien.