Flame-retarded elastic polyurethane foam, adhesive tape with a carrier made therefrom, and production method therefor
AssigneeTesa SE
InventorsVanessa HOMANN, Jacob BELARDI, Ediz EROL
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Abstract
Systems and methods provide a polyurethane foam. One method may obtainable the polyurethane foam by mechanical foaming with a starting mixture comprising a polyurethane dispersion, the polyurethane being composed of at least one polyisocyanate component and at least one polyol component, and at least one surfactant. The polyol component or at least one of the polyol components may comprise at least one comonomer having flame retardancy effect and containing two hydroxyl groups. The adhesive tapes produced therefrom may adhesively bond components in vehicles, aircraft or trains, or in electronic devices.
Claims19
A polyurethane foam obtainable by mechanical foaming of a starting mixture comprising a polyurethane dispersion, the polyurethane being composed of:
- at least one polyisocyanate component;
- at least one polyol component;
- and
- at least one surfactant,
- wherein the polyol component or at least one of the polyol components comprises at least one comonomer having flame retardancy effect and containing two hydroxyl groups.
A method for producing a polyurethane foam, the method comprising:
- a) initially introducing a polyurethane dispersion, at least one polyol component, at least one surfactant, an optional polyol component, and an optional dispersions comprising polyurethane or polyacrylate to form a starting mixture, wherein the polyurethane dispersion is composed of at least one polyisocyanate component and the at least one polyol component comprises at least one comonomer having flame retardancy effect and containing two hydroxyl groups
- b) mechanically foaming the starting mixture to form a wet polyurethane foam composition, optionally with one or more of the following additional components:
- ii) crosslinkers;
- iii) fillers;
- and/or
- iv) further additives;
- c) applying the wet polyurethane foam composition to a surface;
- and
- d) drying the wet polyurethane foam composition to give the polyurethane foam.
Dependencies are inferred from the claim text.