Abstract: A method for producing a component includes a) providing at least two preforms each made of a carbon composite material, b) joining the at least two preforms at least at one respective connecting surface to form a composite, in which a joining compound is introduced between the joining surfaces of the preforms and then cured and the joining compound contains silicon carbide and at least one polymer adhesive, and c) siliconizing the composite to form the component. A component, such as an optical component produced thereby, is also provided.

Abstract: A method for producing a component includes a) providing at least two preforms each made of a carbon composite material, b) joining the at least two preforms at least at one respective connecting surface to form a composite, in which a joining compound is introduced between the joining surfaces of the preforms and then cured and the joining compound contains silicon carbide and at least one polymer adhesive, and c) siliconizing the composite to form the component. A component, such as an optical component produced thereby, is also provided.

Abstract: A method for producing a component includes a) providing at least two preforms each made of a carbon composite material, b) joining the at least two preforms at least at one respective connecting surface to form a composite, in which a joining compound is introduced between the joining surfaces of the preforms and then cured and the joining compound contains silicon carbide and at least one polymer adhesive, and c) siliconizing the composite to form the component. A component, such as an optical component produced thereby, is also provided.

Abstract: The invention relates to novel decahydroquinolinol derivatives represented by the general formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, in which X represents oxygen or sulphur, R represents an alkyl radical having from 1 to 3 carbon atoms, R.sub.1 represents fluorine, chlorine, bromine or methoxy, R.sub.2 represents hydrogen or methoxy or R.sub.1 and R.sub.2, when they are taken together, represent a 2,3-methylenedioxy or 3,4-methylenedioxy radical.The compounds of the invention are inhibitors of calcium translocation at the level of the cell membrane and are useful more particularly in the treatment of pathological syndromes of the cardiovascular system such as, for instance, angina pectoris.

Abstract: Benzofuran derivatives represented by the general formula: ##STR1## in which: R represents an ethyl, n-propyl, isopropyl or n-butyl radical;R.sub.1 represents a branched-chain alkyl radical having from 4 to 7 carbon atoms of which at least one does not bear a hydrogen atom;R.sub.2 represents hydrogen, chlorine or bromine;n is 1 or 2and pharmaceutically acceptable acid addition salts thereof.These derivatives have been found to possess calcium translocation inhibiting properties and antiadrenergic properties and can thus be used in the treatment of certain pathological syndromes of the cardiovascular system.

Abstract: Indolizine derivatives corresponding to the general formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof, wherein: R represents a straight- or branched-chain alkyl radical having from 1 to 4 carbon atoms or a phenyl radical, R.sub.1 represents a straight- or branched-chain alkyl radical having from 1 to 6 carbon atoms, X.sub.1 represents hydrogen, chlorine, bromine, methyl or methoxy, A represents a radical of the formula: ##STR2## in which X.sub.2 represents hydrogen, chlorine, bromine, methyl or methoxy, n represents 1 or 2, a process for preparing said derivatives, pharmaceutical or veterinary compositions containing at least one of said derivatives and a method of treating pathological syndromes of the heart by administration of at least one of said derivatives to a subject in need of such treatment.