Abstract: A method for the utilization of a woven or loop-formingly knitted fabric which acquires an electrostatic charge as a result of a specific treatment for filtering airborne, dusty allergens such as pollen in a pollen guard mountable in front of windows and doors over the whole area thereof.

Abstract: An ultrasonic gas flowmeter includes a measuring pipe with flowing gas, transmitting and receiving sound transducers, transmission and reception electronics, and evaluation electronics. The sound transducers (7, 8, 9, 10) are designed as capacitive electro-acoustic ultrasonic transducers to construct a flowmeter with improved capacity, especially in view of temperature stability and the reduction and consideration of a temperature profile. Devices (5, 6) are provided to level the gas temperature profile and to minimize the influence of the temperature profile on the flow measurement. A more accurate and dependable detection of the volume flow or the mass flow of gases is to be achieved, especially in highly dynamic flows, for the method of determining the flow of gases whereby the mean flow velocity is determined and the flowing gas quantity is determined with highly synchronized resolution from the two transit times of two acoustic signals.

Abstract: The use of textile fabric which contains textured yarn material for attachment in front of windows or doors to guard against dusty allergens such as pollen or house dust.

Abstract: The use of woven or loop-formingly knitted fabrics for attachment in front of windows or doors to guard against dusty allergens such as pollen or dust, this pollen guard possessing by virtue of the generation of an electrostatic charge an adequate filtering performance with regard to pollen while at the same time meeting the properties of adequate visual transparency and adequate air perviousness.

Abstract: The use of textile fabrics which contain at least one textured thread for attachment in front of windows or doors to protect against dusty allergens such as pollen or house dust.

Abstract: The invention relates to a ceramic green body consisting of at least two ceramic bodies that are bonded together. The invention is characterised in that the green body is produced using an adhesive tape that consists of an adhesive film located on a release liner.

Abstract: The use of a textile fabric which has at least one napped side for attachment in front of windows or doors to protect against dusty allergens such as pollen or house dust.

Abstract: The invention relates to woven or knitted fabric and is characterised in that an electrostatic charge is generated by means of friction on the woven or knitted fabric. Said electrostatic charge improves the filtration properties of the fabric.

Abstract: The invention relates to an adhesive tape which proves that a package has been opened in an unauthorised manner, comprising a composite cyclic polyolefin based support covered on one side with an adhesive material.

Abstract: The invention relates to a method for the production of a contact adhesive material based on acrylates, characterised in that a) firstly, (co-) polymers are produced by free radical polymerisation from the following monomers: i) a mixture of acrylic monomers, or of acrylic and vinylic monomers, ii) monomers, which contain vinyl groups and with at least one other functional group which is unreactive with relation to radical polymerisations and which is chosen such that it may participate in polymerisation-like reactions with isocyanate groups, making up from 0.1 to 25 wt. % of the monomer mixture, b) by means of a further reaction under addition of isocyanatoethyl acrylate and/or isocyanatoethyl methacrylate, double bonds are introduced along the polymer chain and c) a cross-linking of the polymers is achieved by means of irradiation with energetic radiation after the reaction between the functional groups and the isocyanate groups.

Abstract: The use of a multilayer adhesive tape having a backing based on an oriented thermoplastic film, an upper surface and a lower surface, to whose lower surface at least the following layers have been applied: