Abstract: A plasticized PVC formulation for foam extrusion including polyvinyl chloride, at least one plasticizer, at least one nucleating agent and a chemical blowing agent, wherein the plasticized PVC formulation is a dry blend containing 0.5 to 5% by weight of one or more nucleating agents and 0.1 to 3% by weight of the chemical blowing agent, wherein the blowing agent is sodium bicarbonate and the nucleating agent is talcum, and a foam extrusion method using said formulation. The extruded plasticized PVC foam is particularly suitable for rock shield pads used for pipeline protection. The foams are lightweight and require less consumption of materials with comparable properties to corresponding solid articles.

Abstract: The present invention relates to a sealing device (1) which comprises a barrier layer (2) with a thermoplastic polymer P1, and an adhesive layer (3) with at least one ethylene-vinyl acetate copolymer (EVA) P2 and azo-dicarbonamide A, and which is suitable for sealing bases in the building sector. The invention further relates to a method for sealing said bases. The method according to the invention allows structures of civil engineering to be sealed rapidly and efficiently and ensures good adhesion of the sealing device on the base.

Abstract: The present invention relates to a sealing device (1) comprising a barrier layer (2) and an adhesive layer (3), and which is suitable for sealing bases in the building sector. The adhesive layer comprises a polymer P2, the polymer P2 being polyethylene (PE), polypropylene (PP) or a copolymer of ethylene and propylene, and a polyolefin-based polymer P3, the polymer P3 having at least one functional group which is selected from the group consisting of carboxylic acids, OH-groups, anhydrides, acetates and glycidyl methacrylate, and azo-dicarbonamide A. The invention further relates to a method for sealing the said bases. The method according to the invention allows structures of civil engineering to be sealed rapidly and efficiently and ensures good adhesion of the sealing device on the base.

Abstract: A method for producing a roadway structure includes the steps: applying pellets of an adhesive composition to a non-tacky surface of a substrate having a support structure, wherein the adhesive composition has at least one solid epoxy resin and at least one thermoplastic polymer that is solid at room temperature; and applying a bitumen-based bearing course. The method permits rapid and efficient production of a roadway structure with good adhesion between the substrate and the asphalt and is suitable in particular for the restoration of asphalt coverings, which must be carried out under time pressure. The application of primer courses is not required.

Abstract: A method for producing a roadway construction, including the steps of applying a random-laid web composed of an adhesive composition which includes at least one solid epoxy resin and at least one thermoplastic polymer solid at room temperature to a substrate including a bearing structure, preferably a concrete structure, and applying a bitumen-based bearing course. The method permits rapid and efficient production of a roadway construction with improved adhesion of asphalt to the substrate. To some extent, primer pretreatment of surfaces is no longer needed. The present invention relates to a method for producing a roadway construction, comprising the steps of: applying a random-laid web composed of an adhesive composition which comprises at least one solid epoxy resin and at least one thermoplastic polymer solid at room temperature to a substrate comprising a bearing structure, preferably a concrete structure, and applying a bitumen-based bearing course.

Abstract: A polymeric foam is described which can be obtained by extrusion of a composition comprising a) a polymer blend of polystyrene, polyphenylene oxide and/or polyphenyl ether, b) at least one blowing agent, and c) at least one nucleating agent, as well as the use thereof for the filling of hollow bodies, in particular in the form of a window or door profile, with foam. The invention also relates to foam-filled hollow bodies, extrudates, and a method for producing the polymeric foam.

Abstract: A foamable composition is described that includes at least one base polymer, at least one propellant, at least one lubricant and/or at least one heat stabilizer, and optionally additional additives, selected from crosslinking agents, heat reflectors, heat flow additives, anti-condensation additives, and/or fillers. Corresponding compositions can be processed into polymer foams which can have a heat conductivity of <0.04 E(mK), and an expansion greater than or equal to 1000%, and a weldability of 80 seconds at 240-260° C. Corresponding polymer foams can be advantageously introduced into hollow profiled plastic parts for windows and doors using a coextrusion process and can thus be used to produce door and window frames with low conductivity values.

Abstract: Method for producing a foam element, wherein an expandable starting material of the foam material is supplied to a portable extruder (10) in the form of granules (11), is activated or fused therein under pressure and the effect of heat and is expanded to a foam element during the manually controlled discharge from the extruder.

Abstract: The present invention relates to a sealing device (1) which comprises a barrier layer (2) with a thermoplastic polymer P1, and an adhesive layer (3) with at least one ethylene-vinyl acetate copolymer (EVA) P2 and azo-dicarbonamide A, and which is suitable for sealing bases in the building sector. The invention further relates to a method for sealing said bases. The method according to the invention allows structures of civil engineering to be sealed rapidly and efficiently and ensures good adhesion of the sealing device on the base.

Abstract: The present invention relates to a sealing device (1) comprising a barrier layer (2) and an adhesive layer (3), and which is suitable for sealing bases in the building sector. The adhesive layer comprises a polymer P2, the polymer P2 being polyethylene (PE), polypropylene (PP) or a copolymer of ethylene and propylene, and a polyolefin-based polymer P3, the polymer P3 having at least one functional group which is selected from the group consisting of carboxylic acids, OH-groups, anhydrides, acetates and glycidyl methacrylate, and azo-dicarbonamide A. The invention further relates to a method for sealing the said bases. The method according to the invention allows structures of civil engineering to be sealed rapidly and efficiently and ensures good adhesion of the sealing device on the base.

Abstract: A process is described for producing a hollow body or cavity filled with insulating foam. The process can include feeding an expandable starting material of the insulating substance to a plastics extrusion apparatus, activating the material therein under pressure and, upon discharge therefrom into the hollow body or the cavity, expanding the material with such a high volume expansion gradient that the insulating substance formed by the expansion completely fills the cross section of the hollow body or cavity without delay upon entry. Also described, is a plastics extrusion apparatus.

Abstract: A method for the production of a roadway structure, the method including: (i) applying a primer to a support structure; (ii) applying a plastic membrane to the support structure that is primed according to step (i); and then (iii) applying an adhesive composition that includes a) at least one solid epoxide resin, and b) at least one thermoplastic polymer that is solid at room temperature, and (iv) applying a bitumen-based support layer.

Abstract: A folding machine for folding sheets of paper, board and the like, includes at least one knife-shaft unit for cutting, perforating, scoring or crimping the sheets. The knife-shaft unit has at least one pair of driven knife shafts. Knife-retaining units for retaining knives are fitted in a rotationally fixed manner on the knife shafts. The knife-retaining units have a split construction and are formed by a plurality of partial shells. A knife holder for a knife shaft of a folding machine, is also provided.

Abstract: A method for the production of a roadway structure, the method including: (i) applying a primer to a support structure; (ii) applying a plastic membrane to the support structure that is primed according to step (i); and then (iii) applying an adhesive composition that includes a) at least one solid epoxide resin, and b) at least one thermoplastic polymer that is solid at room temperature, and (iv) applying a bitumen-based support layer.

Abstract: A folding machine for folding sheets of paper, board and the like, includes at least one knife-shaft unit for cutting, perforating, scoring or crimping the sheets. The knife-shaft unit has at least one pair of driven knife shafts. Knife-retaining units for retaining knives are fitted in a rotationally fixed manner on the knife shafts. The knife-retaining units have a split construction and are formed by a plurality of partial shells. A knife holder for a knife shaft of a folding machine, is also provided.

Abstract: A thermally expansible material includes at least one activated thermoplastic polymer, an amine-functionalized curing agent, and a blowing agent. The at least one activated thermoplastic polymer includes an anhydride functionalized thermoplastic polymer. The expansible material is substantially free of a tackifier, and the material is adhereable to a substrate during expansion. A baffling material following expansion is also provided.

Abstract: A thermally expansible material includes an epoxy resin; a plurality of thermoplastic polymers, wherein at least one thermoplastic polymer includes at least one chemical moiety capable of reacting with said epoxy resin; and a heat-activated blowing agent. The thermally expansible material is substantially free of a tackifier, and the material is adhereable to a substrate during expansion. A baffling material following expansion is also provided.