US 12,007,061 B2
Air brake tubing and compositions for making the same
Iani Manas-Zloczower, Orange, OH (US); and Brett William Schultz, Burton, OH (US)
Assigned to Danfoss A/S, Nordborg (DK)
Filed by Danfoss A/S, Nordborg (DK)
Filed on Mar. 13, 2023, as Appl. No. 18/120,881.
Application 18/120,881 is a continuation of application No. 17/385,411, filed on Jul. 26, 2021, granted, now 11,635,156.
Application 17/385,411 is a continuation of application No. 16/797,645, filed on Feb. 21, 2020, granted, now 11,105,445.
Application 16/797,645 is a continuation of application No. 15/698,388, filed on Sep. 7, 2017, granted, now 10,571,050.
Application 15/698,388 is a continuation of application No. 14/035,424, filed on Sep. 24, 2013, granted, now 9,759,353.
Claims priority of provisional application 61/768,788, filed on Feb. 25, 2013.
Claims priority of provisional application 61/704,835, filed on Sep. 24, 2012.
Prior Publication US 2023/0279971 A1, Sep. 7, 2023
Int. Cl. F16L 9/12 (2006.01); B32B 1/08 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/22 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B60T 17/04 (2006.01); C08L 67/02 (2006.01); C08L 75/08 (2006.01); F16L 11/08 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01)
CPC F16L 9/12 (2013.01) [B32B 1/08 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/22 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B60T 17/04 (2013.01); C08L 67/02 (2013.01); C08L 75/08 (2013.01); F16L 11/085 (2013.01); F16L 11/088 (2013.01); B32B 2250/24 (2013.01); B32B 2264/102 (2013.01); B32B 2264/104 (2013.01); B32B 2264/108 (2013.01); B32B 2270/00 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/558 (2013.01); B32B 2597/00 (2013.01); C08L 77/02 (2013.01); C08L 77/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tubing comprising:
a tube body comprising at least one layer formed from a composition comprising
at least one of the group consisting of a copolyester, a polyethylene terephthalate and a polybutylene terephthalate; and
a thermoplastic polyurethane, wherein the tubing is capable of meeting the performance requirements of SAE J844, SAE J2547 and DOT FMVSS 106.