Process for producing profiled elements
The present invention relates to composite elements comprising a profile and an insulating core enclosed at least to some extent by the profile, where the insulating core is composed of an organic porous material which has a thermal conductivity in the range from 13 to 30 mW/m*K, determined in accordance with DIN 12667, and a compressive strength of more than 0.20 N/mm 2 , determined in accordance with DIN 53421, processes for producing composite elements of this type, and the use of a composite element of this type for producing windows, doors, refrigerators, and chest freezers, or elements for facade construction.
1. A composite element, comprising:
an insulating core consisting of an organic porous material; and
a profile at least to some extent enclosing the insulating core;
wherein
a thermal conductivity of the organic porous material is from 13 to 30 mW/m*K, determined in accordance with DIN 12667, and
a compressive strength of the organic porous material is more than 0.20 N/mm 2 , determined in accordance with DIN 53421; and
the organic porous material is at least one selected from the group consisting of an organic xerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic xerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, an organic xerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages, an organic aerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic aerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, and an organic aerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages.
2. The composite element according to claim 1 , wherein the organic porous material has a density in the range from 70 to 300 kg/m 3 .
3. The composite element according to claim 1 , wherein the organic porous material has a heat resistance of more than 160° C.
4. The composite element according to claim 1 , wherein the profile comprises polyvinyl chloride or aluminum.
5. An insulating material, consisting of:
an organic porous material having a thermal conductivity in the range from 13 to 30 mW/m*K, determined in accordance with DIN 12667, and
a compressive strength of more than 0.20 N/mm 2 , determined in accordance with DIN 53421,
wherein the organic porous material is at least one selected from the group consisting of an organic xerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic xerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, an organic xerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages, an organic aerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic aerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, and an organic aerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages.
6. A profile, comprising:
said insulating material according to claim 5 as a core.
7. A window, door, refrigerator, freezer, or an element for a facade construction, comprising said profile according to claim 6 .
8. A composite element, comprising:
a profile and an insulating core enclosed at least to some extent by the profile,
wherein the insulating core consists of an organic porous material which has
a thermal conductivity in the range from 13 to 30 mW/m*K, determined in accordance with DIN 12667, and
a compressive strength of from 0.2 to 0.64 N/mm 2 , determined in accordance with DIN 53421; and
wherein the organic porous material is at least one selected from the group consisting of an organic xerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic xerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, an organic xerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages, an organic aerogel based on a polyurethane having at least 50 mol % of the linkages of the monomer units in the form of urethane linkages, an organic aerogel based on a polyisocyanurate having at least 50 mol % of the linkages of the monomer units in the form of isocyanurate linkages, and an organic aerogel based on a polyurea having at least 50 mol % of the linkages of the monomer units in the form of urea linkages.
9. A continuous process for producing a composite element according to claim 1 , said process comprising: constructing the profile around the insulating core.
10. The process according to claim 9 , wherein the profile is continuously constructed around the insulating core by a ring extruder.
11. The process according to claim 9 , wherein the profile is constructed from a plurality of parts around the insulating core.
12. The process according to claim 9 , wherein the profile comprises polyvinyl chloride.