Abstract: The subject of this invention is a sheet of material for the manufacture of a folding wall of a transition between two articulated vehicle units, as well as the folding wall of a passenger boarding bridge or passenger stairs, wherein the sheet material has at least one reinforcement element, with the reinforcement element is coated on both sides with a plastic layer, wherein the at least one reinforcement element has on one side a coating based on a silicone rubber and on the other side a coating based on an organic rubber.

Abstract: The subject of this invention is a sheet of material for the manufacture of a folding wall of a transition between two articulated vehicle units, as well as the folding wall of a passenger boarding bridge or passenger stairs, wherein the sheet material has at least one reinforcement element, with the reinforcement element is coated on both sides with a plastic layer, wherein the at least one reinforcement element has on one side a coating based on a silicone rubber and on the other side a coating based on an organic rubber.

Abstract: In a process for producing sound-absorbing PUR foams having an adhesive surface by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f), the polyetherol mixture (b) comprises b1) at least one bifunctional to eight-functional polyetherol based on ethylene oxide and propylene oxide and having an OH number of from 20 to 80 mg KOH/g and a proportion of primary OH groups of >50%, b2) at least one polyetherol based on ethylene oxide and propylene oxide and/or butylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 20 to 80 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is >30% by weight, in amounts of from 10 to 50 parts by weight, and b3) at least one polyetherol based on propylene o

Abstract: Sound-damping and energy-absorbing flexible PUR foams are produced by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f).