摘要:
The invention relates to the use of special isocyanate-terminated polyurethane prepolymers in adhesive formulations. Said adhesive formulations can be used in applications wherein a direct or indirect contact of the adhesive layer takes place with substrates that are sensitive thereto.
摘要:
Methods comprising: providing a migrate-sensitive substrate having a surface to be bonded; providing an adhesive formulation comprising an isocyanate-terminated polyurethane prepolymer containing one or more tertiary amino groups; and forming a migrate-free adhesive bond between the surface of the migrate-sensitive substrate and a second surface; as well as adhesive formulations comprising an isocyanate-terminated polyurethane prepolymer containing one or more tertiary amino groups; and wound closure systems comprising such an adhesive formulation.
摘要:
The invention relates to the use of special isocyanate-terminated polyurethane prepolymers in adhesive formulations. Said adhesive formulations can be used in applications in which it is important to prevent or minimize migration of adhesive components when the adhesive layer is in direct or indirect contact with substrates that are sensitive thereto.
摘要:
The invention relates to adhesives, coating agents and sealing agents curing under the influence of moisture, which exhibit good storage stability, can be processed within a wide tolerance range and are fast-curing.
摘要:
The present invention relates to reactive polyurethane compositions having only small amounts of free, low molecular weight diisocyanates before and after crosslinking, and to the production thereof and the use thereof in reactive one- and two-component adhesives/sealants, bonding foams, encapsulating compounds and in flexible, rigid and integral foams.
摘要:
The invention relates to novel prepolymers which are accessible from the formamides of oligomeric di- or polyamines (formamide-terminated oligomers) and di- or polyisocyanates.
摘要:
The invention relates to novel prepolymers which are accessible from the formamides of oligomeric di- or polyamines (formamide-terminated oligomers) and di- or polyisocyanates.
摘要:
A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.
摘要:
A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.
摘要:
Method for the production of adhesive-coated articles, articles obtainable thereby and their use A method for the production of adhesive-coated articles comprises the steps of: (I) providing a substrate; (II) applying a first polyurethane and/or polyurethane-polyurea polymer onto the substrate, the first polyurethane and/or polyurethane-polyurea polymer being capable of attaining an at least partially crystalline state with a final degree of crystallinity and wherein during and/or after the application the first polyurethane and/or polyurethane-polyurea polymer is present in a non-crystalline state. The method further comprises the steps: (III) applying onto the first polyurethane and/or polyurethane-polyurea polymer of step (II) a composition comprising a mixture of a second polyurethane and/or polyurethane-polyurea polymer and furthermore an acrylate polymer, wherein the application is performed while the degree of crystallinity of the first polyurethane-polyurea polymer is lower than its final degree of crystallinity; and (IV) cooling the article obtained to a temperature below the glass transition temperature of the acrylate polymer.