Title:
【発明の名称】生物学的に分解可能な皮革
Document Type and Number:
Japanese Patent JP2001513129
Kind Code:
A
Abstract:
The present invention relates to a process for preparing leather by(I) tanning a pelt with(a) an aldehyde, or(b) a bisulphite-blocked polyisocyanate;(II) optionally, retanning the pelt with(a) a polyaspartic acid, a salt of a polyaspartic acid, a polyaspartic acid anhydride, or a mixture thereof, and/or(b) a polyaspartamide;(III) dressing the resultant product by(a) bottoming the product with a polyurethane and one or more natural bottoming assistants, and(b) applying a polyurethane and/or polyesteramide finish; and(IV) optionally, aftertreating the resultant dressed leather with a leather preservative.
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Inventors:
Troy bell, halo
Miller, Hans-Peter
Life, helmut
Reiners, Jürgen
Renner, Gert-Friedrich
Kotsuho, Reinhard
Pizzlik, Karl Heinz
Miller, Hans-Peter
Life, helmut
Reiners, Jürgen
Renner, Gert-Friedrich
Kotsuho, Reinhard
Pizzlik, Karl Heinz
Application Number:
JP53724098A
Publication Date:
August 28, 2001
Filing Date:
February 13, 1998
Export Citation:
Assignee:
Bayer Actien Gezershyaft
International Classes:
C08G18/80; C14C3/08; C14C3/18; C14C3/28; C14C9/00; C14C11/00; (IPC1-7): C14C3/08; C14C3/28; C14C9/00; C14C11/00
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)