Invention Grant
US08426022B2 Coated leather 有权
涂层皮革

  • Patent Title: Coated leather
  • Patent Title (中): 涂层皮革
  • Application No.: US12682619
    Application Date: 2008-09-11
  • Publication No.: US08426022B2
    Publication Date: 2013-04-23
  • Inventor: Philipp Schaefer
  • Applicant: Philipp Schaefer
  • Applicant Address: DE Leverkusen
  • Assignee: LANXESS Deutschland GmbH
  • Current Assignee: LANXESS Deutschland GmbH
  • Current Assignee Address: DE Leverkusen
  • Agent Michael A. Miller
  • Priority: AT620/2007U 20071012; AT83/2008U 20080212; ATA756/2008 20080509; DE202008007288U 20080530
  • International Application: PCT/EP2008/007485 WO 20080911
  • International Announcement: WO2009/049728 WO 20090423
  • Main IPC: B32B5/16
  • IPC: B32B5/16
Coated leather
Abstract:
A coated leather, in particular split cowhide leather, has a preferably nubuck-like appearing surface structure. The coating is formed with a surface layer formed with a mechanically and moisture-stable polymer and bonded to the surface of the leather or split leather by a polymer-based bonding layer. The outer layer is notable for inner smoothness and is formed with soft polyurethane. It includes in the non-embossed region microdepressions which are essentially closed in the direction of the leather but are open towards the outside, have an internal width of less than 130 μm and are arranged close-packed to each other in the manner of soapy foam cells. The microdepressions are each separately bounded by thin mutually crosslinked stays which have on the outside a matt or finely fibrous fine-roughness structure surface, and have an essentially semispherical-shaped concave inner surface which faces outward and is smooth. The coating may include two or more layers that are riveted to each other by way of pins or the like that are anchored in pores.
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