Abstract: A method for minimizing a deviation of a physical parameter of a blow-molded container from a target value comprises determining a physical parameter of a container assigned to a machine parameter value of a blow molding machine and an environmental condition, based on the physical parameter and the target value, determining a change in the machine parameter, based on an iteration process, determining an optimal machine parameter value for achieving a minimum deviation from the target value of the physical parameter of a blow-molded container, the iteration process comprising a first iteration step for determining a deviation from the target value of the physical parameter of a blow-molded container based on a change in the machine parameter value, and a second iteration step for determining an adjusted change in the machine parameter value based on the deviation of the physical parameter of a blow-molded container from the target value.

Abstract: A multi-part axial cage for a large diameter roller bearing, which has a metal strip connected to plastic cage windows. The metal strip is configured as a washer-ring-type flat cage and each cage window has a sealing element on the edge lying opposite the guiding edge. The element covering an axial gap is formed between the races of the roller bearing. The sealing elements of the individual cage windows overlap around the circumference.

Abstract: A multi-part axial cage for a large diameter roller bearing, which has a metal strip which is connected to plastic cage windows. The metal strip is configured as a washer-ring-type flat cage and each cage window has a sealing element on the edge lying opposite the guiding edge. The element covering an axial gap is formed between the races of the roller bearing. The sealing elements of the individual cage windows overlap around the circumference.

Abstract: There is disclosed an improved semi-continuous and continuous process for the preparation of 1-amino-2-naphthol-4-sulfonic acid by nitrosation of 2-naphthol, addition of bisulfite, acidification with mineral acid and reduction of the reaction product so obtained, which comprises charging the reactor with the nitrosating agent and simultaneously adding 2-naphthol and mineral acid simultaneously in separate streams in the semi-continuous process, or charging the reactor with the reaction mass and simultaneously adding 2-naphthol, mineral acid and the nitrosating agent in separate streams in the continuous process. The product can be further used, without isolation, for the synthesis of dyes.

Abstract: The invention relates to a process for the preparation of chloronitroanilines or chloronitrophenols, which comprises chlorinating nitroanilines or nitrophenols in hydrochloric acid by adding simultaneously separate streams of nitroanilines or nitrophenols and of a chlorinating agent to said hydrochloric acid. The process affords pure products in good yield. An accumulation of chlorine during the reaction is avoided.Chloronitroanilines and chloronitrophenols are useful intermediates for the snythesis of disperse dyes.

Abstract: A process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid by sulfonating naphthalene, nitrating the sulfonation product, and separating the pure magnesium salt of 3-nitronaphthalene-1,5-disulfonic acid, which process comprises:(a) sulfonating naphthalene with liquid SO.sub.3 in the presence of an inert organic solvent at temperatures between -40.degree. and +20.degree. C.

Abstract: A process for the reduction of aromatic nitro compounds to amino compounds in the liquid phase using iron as reducing agent, which comprises carrying out the reduction continuously such that the reducing iron, based on the amount of nitro compound present in the reactor, is present in an amount substantially in excess of the stoichiometric amount, and effecting the continuous removal of the reaction products such that the substantial excess of reducing iron is also constantly present in the reactor during the reduction.