Pneumatic vehicle tire having a tacky sealing
A pneumatic vehicle tire having a self-sealing sealant arranged in its interior, on the inner surface opposite from the tread, the sealant being highly viscous and the sealant having such a tackiness that it adheres to the inner surface. The inner surface on which the sealant is arranged has regions provided with an adhesion-reducing effect, these regions provided with an adhesion-reducing effect taking up between 40% and 60% of the inner surface on which the sealant is arranged.
1. A pneumatic vehicle tire comprising:
a tire body defining an interior and having a tread and an inner surface arranged opposite said tread;
a self-sealing sealant arranged in said interior, on said inner surface, wherein said sealant is a continuous layer directly on said inner surface;
said sealant being highly viscous and having a tackiness such that said sealant adheres to said inner surface;
said inner surface having regions provided with an adhesion-reducing effect which enables flowability of said sealant, and consequently sealing when there are punctures in the pneumatic tire; and,
said regions provided with said adhesion-reducing effect taking up between 20% and 80% of said inner surface on which the sealant is arranged.
2. The pneumatic vehicle tire of claim 1 , wherein:
the pneumatic vehicle tire defines a tire circumference;
and,
said regions provided with said adhesion-reducing effect are arranged evenly distributed over said tire circumference.
3. The pneumatic vehicle tire of claim 1 , wherein said regions provided with said adhesion-reducing effect have the structure of a network or a grid or a strip structure or a geometrical 2-dimensional structure.
4. The pneumatic vehicle tire of claim 1 , wherein said regions provided with said adhesion-reducing effect have a structure including circles or polygons.
5. The pneumatic vehicle tire of claim 1 , wherein said regions provided with said adhesion-reducing effect take up between 30% and 60% of said inner surface on which said sealant is arranged.
6. The pneumatic vehicle tire of claim 1 , wherein said regions provided with said adhesion-reducing effect take up 50% of said inner surface on which said sealant is arranged.
7. The pneumatic vehicle tire of claim 1 further comprising:
a sound absorber arranged on said sealant in a radially inward direction; and,
said sound absorber being adhered to said sealant on account of said tackiness of said sealant.
8. The pneumatic vehicle tire of claim 7 , wherein:
said sound absorber and said sealant conjointly define a contact surface;
said regions are first regions;
said contact surface between said sound absorber and said sealant has second regions provided with said adhesion-reducing effect; and,
said second regions take up between 30% and 90% of said contact surface.
9. The pneumatic vehicle tire of claim 1 , wherein said sealant is a polyurethane gel.
10. The pneumatic vehicle tire of claim 1 , wherein said sealant is a viscous mixture based on a butyl rubber, a polybutene or based on silicone.
11. The pneumatic vehicle tire of claim 1 , wherein in the case of an arrangement of a sound absorber on the sealant in which the sealant primarily has the function of an adhesive, the layer thickness of the sealant is 0.5 mm to 2 mm.
12. The pneumatic vehicle tire of claim 1 , wherein, in the case of an arrangement of a sound absorber on the sealant in which the sealant primarily has the function of an adhesive, a layer thickness of the sealant is approximately 1 mm.
13. The pneumatic vehicle tire of claim 1 , wherein, in the case of an arrangement of said sealant with a sound absorber, a layer thickness of the sealant is 2.5 mm to 3.5 mm.
14. The pneumatic vehicle tire of claim 1 , wherein, in the case of an arrangement of said sealant with a sound absorber, a layer thickness of the sealant is approximately 3 mm.