摘要:
The invention is directed to a method for recycling an organic-matrix composite material. The organic-matrix composite material comprises a first component comprising at least one organic matrix polymer and at least one solid second component being compatible with said first component and being structurally different from said first component, wherein said at least one organic polymer has thermosetting properties at room temperature and wherein said polymer comprises thermally reversible cross-links The method of the invention comprises -heating the organic-matrix composite material to a temperature at which at least part of the thermally reversible cross-links cleave and at which temperature the first component as a viscosity of at most 500 Pa·s, as measured by oscillatory measurements on an Anton Paar MCR 301 rheometer using parallel plate geometry; and -separating the at least part of said first component from said second component.
摘要翻译:本发明涉及一种用于再循环有机基质复合材料的方法。 有机基质复合材料包括第一组分,其包含至少一种有机基质聚合物和至少一种固体第二组分,其与所述第一组分相容并且在结构上不同于所述第一组分,其中所述至少一种有机聚合物具有在 室温,其中所述聚合物包括热可逆交联。本发明的方法包括 - 将有机基质复合材料加热至至少部分热可逆交联体断裂的温度,在该温度下第一组分为 通过使用平行板几何形状的Anton Paar MCR 301流变仪上的振荡测量来测量的粘度至多为500Pa·s; 以及将所述第一组分的至少一部分与所述第二组分分离。
摘要:
The present invention provides a method for preparing an inorganic crystalline ceramic material having an organized structure, comprising the steps of: (a) providing nanoparticles of one or more inorganic crystalline ceramic materials; (b) reacting metal hydroxide groups that are present on the nanoparticles with molecules of a chemical compound which molecules each comprisea first and a second reactive moiety, whereby a covalent bond is formed between the first reactive moieties of the molecules and the respective metal hydroxide groups; and (c) subjecting the nanoparticles obtained in step (b) to a treatment which enables the formation of a bond between at least two nanoparticles, whereby the bond is formed directly or indirectly between the second reactive moieties of the covalenty bonded molecules of the chemical compound as obtained in step (b), thereby forming an organized structure.
摘要:
The invention relates to a polymeric material having an anisotropic shape and comprising multiple cavities, wherein said cavities comprise a functional liquid. The invention also relates to a process of making the polymeric material from an emulsion of a functional liquid with a polymer in solution, in the melt or a polymer precursor which reacts to obtain the polymeric material having cavities filled with functional liquid.
摘要:
A cylinder housing (1) is cast with a cylinder wall (2) in the making of a cylinder for an internal combustion engine. The cylinder wall delimits an interior space (3) for accommodating a reciprocating piston and, thereafter, a control window (5) is machined into the cylinder wall (2) as an opening of a transfer channel (4) into the interior space (3). A two-stage machining for forming the control window (5) is provided in order to make possible a rapid and cost effective manufacture of the cylinder. In a first step with a work tool (7) having a rotating primary movement (11), a breakthrough (10) is machined into the cylinder wall (2) and, in a second step with a work tool, the breakthrough (10) is widened to the wanted dimensions of the control window (5).
摘要:
A process for the preparation of cyclic urea derivatives of the formula ##STR1## in which R.sup.1 and R.sup.2 are equal or different and represent hydrogen, alkyl having from 1 to 6 carbon atoms or alkoxy having from 1 to 3 carbon atoms, which comprises reacting a 1,2-diaminobenzene of the formula ##STR2## in which R.sup.1 and R.sup.2 have the meaning indicated above are reacted with carbon dioxide in the presence of water under superatmospheric pressure at a temperature of at least 120.degree. C.
摘要:
A palladacycle of the formula (I) ##STR1## where: R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are, independently of one another, hydrogen, (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy, fluorine, NH.sub.2, NH-alkyl(C.sub.1 -C.sub.4), N(alkyl).sub.2 -(C.sub.1 -C.sub.4), CO.sub.2 -(C.sub.1 -C.sub.4)alkyl, OCO-alkyl-(C.sub.1 -C.sub.4), or phenyl, R.sup.7 and R.sup.8 are, independently of one another, (C.sub.1 -C.sub.8)-alkyl, (C.sub.3 -C.sub.12)-cyloalkyl, substituted or unsubstituted aryl or where R.sup.1, and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.5 and R.sup.6 together form an aliphatic or aromatic ring, and Y is an anion of an inorganic or organic acid.
摘要:
A process for the preparation of N-acylglycine derivatives of the formula (I) ##STR1## which comprises reacting a carboxylic acid amide with an aldehyde in the presence of a solvent and an acid to give an acylaminomethylol and then carbonylating the acylaminomethylol in the presence of a cobalt carbonyl catalyst.
摘要:
Process for preparing aromatic olefins of the formula (1) ##STR1## in which R.sup.1 -R.sup.3 are hydrogen, alkyl (C.sub.1 -C.sub.8) , alkoxy-(C.sub.1 -C.sub.5), phenyl, fluorine, chlorine, bromine, --OH, --NO.sub.2, --CN, --CHO, --COalkyl(C.sub.1 -C.sub.4) , --COphenyl, --COOalkyl (C.sub.1 -C.sub.4) , --OCOalkyl(C.sub.1 -C.sub.4), --NHCOalkyl(C.sub.1 -C.sub.4) , --CF.sub.3, --NH.sub.2, --NH--alkyl(C.sub.1 -C.sub.4) or --N(alkyl(C.sub.1 -C.sub.4)).sub.2 and R.sup.4 is hydrogen, alkyl(C.sub.1 -C.sub.8), phenyl, fluorine, chlorine, bromine, --OH, --NO.sub.2, --CN, --CHO or --OCOalkyl (C.sub.1 -C.sub.4) , and X is, inter alia, alkenyl(C.sub.2 -C.sub.12) or cycloalkenyl(C.sub.4 -C.sub.8) or the group ##STR2## in which R.sup.5 and R.sup.6 are, independently of one another, hydrogen or methyl, and Y is --phenyl, --CN, --COOH, --COOalkyl(C.sub.1 -C.sub.12), --COOphenyl, ##STR3## --CON (phenyl).sub.2, --COalkyl(C.sub.1 -C.sub.12), --COphenyl, --Oalkyl(C.sub.1 -C.sub.12) , --Ophenyl or the radical ##STR4## in which R.sup.1 -R.sup.4 are as defined above, by reacting an aryldiazonium salt of the formula (2) ##STR5## in which R.sup.1 -R.sup.4 are as defined and Z is the equivalent of an anion of an acid having a pK.sub.a of less than 7, with an olefin of the formula (3)HX (3)
摘要:
Anti-inflammatory benzylselanobenzamides made from anilines and benzylamines have the formula I ##STR1## are disclosed wherein R is hydrogen, methyl or ethyl;R.sup.1 and R.sup.2 are the same or different and, taken separately, are hydrogen, fluorine, chlorine, bromine, C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkoxy, hydroxy, cyano, amino, dimethylamino or nitro; andR.sup.3 and R.sup.4 are the same or different and, taken separately, are hydrogen, fluorine, chlorine, bromine, C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkoxy, hydroxy, cyano, or nitro and, taken together, represent methylenedioxy; andn is 0.1 or 2.
摘要翻译:由苯胺和苄胺制成的抗炎苄苯磺酰苯甲酰胺具有式I(I),其中R是氢,甲基或乙基; R 1和R 2相同或不同,分别为氢,氟,氯,溴,C 1至C 4烷基,C 1至C 4烷氧基,羟基,氰基,氨基,二甲基氨基或硝基; R 3和R 4相同或不同,分别为氢,氟,氯,溴,C 1至C 4烷基,C 1至C 4烷氧基,羟基,氰基或硝基,并且一起表示亚甲二氧基; n为0.1或2。
摘要:
There are disclosed and claimed novel polyamides having improved properties such as high transparency and second order transition temperatures in combination with good mechanical and electrical properties at relatively high temperatures. These polyamides are derived from bis-aminomethyl-norbornanes and aliphatic or cycloaliphatic or aromatic or aromatic-aliphatic diamines, aliphatic or aromatic dicarboxylic acids, and amino carboxylic acids.