Abstract: The invention relates to a coating material for protection against microorganism invasion on surfaces which are exposed to the effects of damp or water. The coating material has either a pH-value of at least 11.0 or is provide with a base material for the coating whereby the pH-value is at least 11. The coating material is characterized in that it contains a biocide which bonds to solid particles in a carrier material and is released in a delayed manner therefrom.

Abstract: The invention relates to a coating material for protection against microorganism invasion on surfaces which are exposed to the effects of damp or water. The coating material has either a pH-value of at least 11.0 or is provide with a base material for the coating whereby the pH-value is at least 11. The coating material is characterized in that it contains a biocide which bonds to solid particles in a carrier material and is released in a delayed manner therefrom.

Abstract: A magnetic knife holder including a body having at least one magnet integrated into a surface of the body, and at least one slot formed in the body configured to receive a knife blade. The body may include a flat bottom, two side surfaces, a top and a front surface. With magnetic attraction from each magnet, knives can be securely retained within each knife slot in the body to avoid their accidental disengagement with the body when the body is inadvertently turned over. Further, the body can be conveniently attached to any iron-containing furniture. Additionally, at least one of the sides and the top of the body is substantially flat such that multiple magnetic knife holders can be neatly juxtaposed and/or stacked together and held in such configurations via magnetic attraction.

Abstract: An improved process and catalyst system for the isomerization of halothiophenes. More particularly, an improved process for the isomerization of 2-halothiopehenes to 3-halothiophenes by reacting a 2-halothiophene with a catalyst and in the presence of a base. The addition of a base additive to the acidic zeolite catalyst allows the desired isomerization reaction to take place while suppressing side-reactions that result in the decomposition of thiophene rings. The catalyst lifetime is thus increased and the amount of catalyst needed for the reaction is reduced, lowering cost.

Abstract: In a filtration device (1) comprising a pressure-resistant housing (2) with a liquid inlet opening (3) and an outlet opening (4) for filtered matter, into which a collecting channel (12) terminates, at least one filter element (8–11) designed as flat membrane is connected to the collecting channel (12) in a pressure-tight manner. This device provides a high liquid throughput at the same time having a compact construction.

Abstract: The present invention relates to a novel process for the preparation of high-purity chemicals with an extremely low particle count, such as ammonia gas, hydrogen fluoride and hydrogen chloride, which are also used as aqueous solutions in semiconductor technology the corrosive gas is enriched with an absorbent which is miscible with the gas and in which impurities present in the gas are soluble, and the gas is subsequently subjected to membrane filtration.

Abstract: In a filtration device (1) comprising a pressure-resistant housing (2) with a liquid inlet opening (3) and an outlet opening (4) for filtered matter, into which a collecting channel (12) terminates, at least one filter element (8-11) designed as flat membrane is connected to the collecting channel (12) in a pressure-tight manner. This device provides a high liquid throughput at the same time having a compact construction.

Abstract: An improved process and catalyst system for the isomerization of halothiophenes. More particularly, an improved process for the isomerization of 2-halothiopehenes to 3-halothiophenes by reacting a 2-halothiophene with a catalyst and in the presence of a base. The addition of a base additive to the acidic zeolite catalyst allows the desired isomerization reaction to take place while suppressing side-reactions that result in the decomposition of thiophene rings. The catalyst lifetime is thus increased and the amount of catalyst needed for the reaction is reduced, lowering cost.

Abstract: The invention provides a process for the production of 4-(C2-C16)alkylresorcinol. 4-(C2-C16)alkylresorcinol is produced by reacting resorcinol with a (C2-C16)alkyloic acid in the presence of a zinc chloride catalyst to produce an intermediate comprising a 4-(C2-C16)acylresorcinol and zinc ions. Then the intermediate is adjusted such that the zinc ion content is from about 0.1 to about 150 parts per million based on the weight of the intermediate to form an adjusted intermediate. Then the produced 4-(C2-C16)acylresorcinol is hydrogenated in the presence of the zinc ions and a base metal hydrogenation catalyst to produce a crude product comprising 4-(C2-C16)alkylresorcinol, which may thereafter be isolated.

Abstract: A biocide composition is disclosed as an additive to substances susceptible to infestation by harmful organisms, containing 2-methylisothiazolin-3-one as a biocidal agent. The composition is characterized in that it contains 3-iodo-2-propynyl-N-butylcarbamate as a farther biocidal agent, with the exception of biocide compositions containing 5-chloro-2-methylisothiazolin-3-one. In comparison to its individual constituents, the composition provided by the invention presents a synergistic biocidal action.

Abstract: The invention relates to a biocidal composition which can be added to materials which can be attacked by harmful micro-organisms, containing pyrithione as a biocidal active ingredient. The biocidal composition is characterised in that it contains 2-alkyl isothiazoline-3-one as another biocidally active ingredient. The active ingredients of the biocidal composition behave synergistically and are ideally suitable for controlling bacteria, fungus and algae.

Abstract: The invention relates to a coating material for protection against microorganisum invasion on surfaces which are exposed to the effects of damp or water. The coating material has either a pH-value of at least 11.0 or is provided with a base material for the coating whereby the pH-value is at least 11.0. The coating material is characterised in that it contains a biocide which bonds to solid particles in a carrier material and is released in a delayed manner therefrom.

Abstract: The present invention relates to a novel process for the preparation of high-purity chemicals with an extremely low particle count, such as ammonia gas, hydrogen fluoride and hydrogen chloride, which are also used as aqueous solutions in semiconductor technology the corrosive gas is enriched with an absorbent which is miscible with the gas and in which impurities present in the gas are soluble, and the gas is subsequently subjected to membrane filtration.

Abstract: The invention relates to a biocidal composition which can be added to materials which can be attacked by harmful micro-organisms. The composition comprises 2-methylisothiazoline-3-on as biocidal active ingredient and at least one other biocidal active ingredient. The biocidal composition is characterised in that the composition contains formaldehyde or a formaldehyde-depot material, 2-brom-2-nitro-1,3 propandiol, polyhexamethylene biguanide, o-phenylphenol, pyrithione, n-butyl-1,2-benzisothiazoline-3-on, n-hydroxymenthyl-1,2-benzisothiazoline-3-on or benzalkonium chloride as said other biocidal active ingredient.

Abstract: The invention relates to a biocidal composition which can be added to materials which can be attacked by harmful micro-organisms, containing pyrithione as a biocidal active ingredient. The biocidal composition is characterised in that it contains 2-alkyl isothiazoline-3-one as another biocidally active ingredient. The active ingredients of the biocidal composition behave synergistically and are ideally suitable for controlling bacteria, fungus and algae.

Abstract: A biocide composition is provided as an addition to substances that can be infected by harmful microorganisms, in which the biocide composition has at least two active biocidal substances, one of which is 2-methylisothiazolin-3-one. The composition is characterized in that it contains 1,2-benzisothiazolin-3-one, compositions containing 5-chloro-2-methylisothiazolin-3-one being excluded. In comparison with its individual components, the composition of the invention has a synergistic biocidal activity.

Abstract: The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## in which X and Y, independently of each other, represent hydrogen, fluorine, chlorine or bromine, but cannot simultaneously represent hydrogen, characterised in that compounds of the general formula II ##STR2## in which X and Y are defined as above, are reacted with aqueous ammonia under copper catalysis, and to intermediates for the preparation of compounds of the general formula I.

Abstract: A method for preserving a polymer emulsion comprising intimately admixing with the polymer emulsion a polymer emulsion preserving amount of a stabilized composition comprising in intimate admixture an aqueous solution of one or more 3-isothiazolones and an effective stabilizing amount of a hydroperoxide-free organic and/or manganese-free inorganic oxidizing agent, and, optionally, a stabilizer for the oxidizing agent.

Abstract: A keypad (10) comprises a membrane having a plurality of switch actuating portions (41). The keypad (10) further comprises key portions (44) corresponding to said switch actuating portions (41) and located on an opposite side of the membrane to said switch actuating portions (41) and a plurality of switch elements (18) located beneath said switch actuating portions (41) of the membrane. The membrane extends across the keypad (10) and provides a water resistant barrier between the switch elements (18) and the key portions (44) of the membrane. Removable buttons (40) are provided for the keypad (10) and are attached to the key portions (44) of the membrane, whereby pressing of the buttons (40) causes flexing of the membrane and actuation of the switch elements (18) by the switch actuating portion of the membrane.