Patent ID: 7827760

Claim:
A spacer profile for use as a spacer profile frame, which is suitable for being mounted in and/or along an edge area of an insulating window unit for forming and maintaining an intervening space between window panes, wherein the spacer profile extends in a longitudinal direction (Z) and comprises a first width (b 1 ) in a traverse direction (X), which is perpendicular to the longitudinal direction (Z), and comprises first height (h 1 ) in a height direction (Y), which is perpendicular to the longitudinal direction (Z) and to the traverse direction (X), and wherein in the height direction (Y) the spacer profile comprises an inner side, which is arranged to face towards the intervening space between the window panes in the assembled state of the spacer profile frame, the spacer profile comprising: a profile body formed from a first material and defining therein a chamber for accommodation of hygroscopic material, wherein the chamber: (i) is laterally defined in the traverse direction by side walls, (ii) comprises a second height (h 2 ) in the height direction (Y) and (iii) is formed so as to be not diffusion-proof in the height direction (Y) on the inner side of the profile body, and a one-piece diffusion barrier film formed of a second material having a first thickness (d 1 ) less than 0.3 mm, wherein the film is firmly bonded with the profile body, so that the film extends over an outer side of the chamber that faces away from the inner side and, continuous thereto in the height direction (Y), essentially extends up to the height of the chamber, wherein: the diffusion barrier film, as seen in cross-section perpendicular to the longitudinal direction (Z), comprises on each of its two side edges a profiled elongation portion, whose profile is fully contained in an accommodation region, which accommodation region adjoins the inner side of the spacer profile in the height direction (Y) and the chamber, and extends in the height direction (Y) from the inner side in the direction facing away from the intervening space between the window panes and comprises a third height (h 3 ) that is less than or equal to (0.4 times h 1 ).