Abstract: A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting formaldehyde, an aldehyde or a ketone (a carbonyl compound) with acetylene in the presence of ammonia and an alkali metal hydroxide, the molar ratio of the alkali metal hydroxide to the carbonyl compound being less than 1:200. The reaction products, which depending on the starting carbonyl compound are propargyl alcohol or 1-monosubstituted or 1,1-disubstituted derivatives thereof, are of use as intermediates in the synthesis of many useful end products, inter alia in the field of vitamins and carotenoids.

Abstract: A tamper-evident closure is adapted to mount on a filler neck of a container. The closure includes a body, a flip-top cap, and a hinge coupled to the body and the flip-top cap. The body and the cap cooperate to define a tamper-evident indicator that breaks to the first time the flip-top cap has opened to indicate that the flip-top cap has been opened.

Abstract: A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting formaldehyde, an aldehyde or a ketone (a carbonyl compound) with acetylene in the presence of ammonia and an alkali metal hydroxide, the molar ratio of the alkali metal hydroxide to the carbonyl compound being less than 1:200. The reaction products, which depending on the starting carbonyl compound are propargyl alcohol or 1-monosubstituted or 1,1-disubstituted derivatives thereof, are of use as intermediates in the synthesis of many useful end products, inter alia in the field of vitamins and carotenoids.

Abstract: A method and an apparatus for carrying out the method are described which are used for reprocessing waste material accumulating in the production of cigarettes and similar rod-form smoking items, wherein the waste material comprises paper material, tobacco and filter material, wherein the paper material is wrapped around the tobacco, and wherein essentially the following process steps are carried out: the waste material is subjected to a dry mechanical treatment in order to obtain waste material which is broken down and in which the material components of the waste material are separated one from the other, and in particular the paper material is detached from the tobacco or the other material components, and the tobacco is subsequently sifted out of the broken-down waste material. The paper material can be suctioned out of the broken-down waste material after the tobacco has been sifted out.

Abstract: The innovation relates to a treatment chair with cool-light lamp for dental-medicinal purposes, wherein the light is conducted between the point where the light emerges and the remotely arranged light source through a glass fiber bundle which is arranged in a partially flexible tubular guide.