A method for producing composite profiles comprises providing a first profile part extending in a longitudinal direction, made from a first plastics material, with a profile region produced from a second plastics material thermally plasticizable at a first temperature, providing a second profile part extending in a longitudinal direction, made from a material not thermally plasticizable at the first temperature, and with a receiving structure formed along the longitudinal direction of the second profile part, with which the profile region of the first profile part is connectible, bringing the profile region of the first profile part into contact with the receiving structure of the second profile part, plasticizing the second plastics material of the profile region by heating to the first temperature and deforming the plasticized profile region while forming a positive engagement between the profile region and the receiving structure while maintaining the geometry of the receiving structure.

The present invention relates to a method of producing a frame member for a window or a door, the method comprising the steps of providing a sheet of metal, rollforming the sheet of metal into a frame shell having a predetermined profile, introducing a foaming material into the frame shell, and arranging the frame shell in a calibration tube until the foam material has set. The sheet of metal has a thickness of 0.25 mm or less.

The present invention further relates to a frame member, a frame structure and use of such frame member.

The present invention relates to a method of producing a frame member for a window or a door, the method comprising the steps of providing a sheet of metal, rollforming the sheet of metal into a frame shell having a predetermined profile, introducing a foaming material into the frame shell, and arranging the frame shell in a calibration tube until the foam material has set. The sheet of metal has a thickness of 0.25 mm or less.

The present invention further relates to a frame member, a frame structure and use of such frame member.

A method for manufacturing an insulating bar made from a thermoplastic plastics material whereof the base body has a corrugated structure comprises shaping the insulating bar as a blank having a substantially planar structure of the base body without raised portions and recesses but with the connection strips, cooling the blank to a temperature corresponding to the maximum long-term service temperature of the plastics material or lower, heating the base body to a forming temperature which, for crystalline plastics materials, is approximately 30 C. below the crystallite melting point of the plastics material or higher, and for amorphous plastics materials, is approximately 30 C. above the softening point or higher, forming the base body by a tool to produce the alternating raised portions and recesses, while retaining the geometry of the connection strips, and cooling the insulating bar to a temperature corresponding to the maximum long-term service temperature or lower.