US 12,151,523 B2
Valve for an inflatable hose section
Sascha Mattfeld, Brockum (DE); Günter Scholz, Lemfoerde (DE); Guido Bilges, Stemwede-Oppendorf (DE); and Hendrik Kohake, Lohne (DE)
Assigned to BASF SE, Ludwigshafen (DE)
Appl. No. 14/406,833
Filed by BASF SE, Ludwigshafen (DE)
PCT Filed Jun. 17, 2013, PCT No. PCT/EP2013/062528
§ 371(c)(1), (2) Date Dec. 10, 2014,
PCT Pub. No. WO2013/189890, PCT Pub. Date Dec. 27, 2013.
Claims priority of application No. 12172320 (EP), filed on Jun. 18, 2012.
Prior Publication US 2015/0183283 A1, Jul. 2, 2015
Int. Cl. B60C 29/00 (2006.01); B29D 23/24 (2006.01); B60C 29/04 (2006.01); B29K 75/00 (2006.01); B29K 705/00 (2006.01)
CPC B60C 29/005 (2013.01) [B29D 23/24 (2013.01); B60C 29/04 (2013.01); B29K 2075/00 (2013.01); B29K 2705/00 (2013.01); Y10T 137/3584 (2015.04); Y10T 428/1352 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A valve for an inflatable flexible tube section comprising a thermoplastic polyurethane, the valve comprising:
a tubular shaft, and
a valve base connected adhesively and around the entire periphery to an end of the tubular shaft,
wherein:
the valve base comprises a thermoplastic polyurethane which is a reaction product of (a) isocyanates with (b) polyetherols as compounds reactive toward isocyanates, the polyetherols having a Mn of 0.5×103 g/mol to 100×103 g/mol, the thermoplastic polyurethane having a shore hardness of from 70 A to 90 A;
the tubular shaft comprises a thermoplastic polyurethane having a shore hardness in the range of from 70 A to 95 D,
wherein the valve base of the valve is connected adhesively to the inflatable flexible tube section comprising a thermoplastic polyurethane,
wherein
the inflatable flexible tube section comprises an aperture, and
the inflatable flexible tube section is connected adhesively around the aperture and around the entire periphery to the valve base of the valve, in such a way that the connection between an internal space of the inflatable flexible tube section and an internal space of the tubular shaft is sealed off from the environment.