Invention Grant
US4971835A Processing for rendering leather hydrophobic and oleophobic by
impregnation with fluoro chemicals
失效
通过用氟化学品浸渍来提炼皮革疏水性和疏油性的加工
- Patent Title: Processing for rendering leather hydrophobic and oleophobic by impregnation with fluoro chemicals
- Patent Title (中): 通过用氟化学品浸渍来提炼皮革疏水性和疏油性的加工
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Application No.: US235037Application Date: 1988-08-22
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Publication No.: US4971835APublication Date: 1990-11-20
- Inventor: Norbert Munch , Lothar Schlosser , Gustav Hudec
- Applicant: Norbert Munch , Lothar Schlosser , Gustav Hudec
- Applicant Address: DEX Frankfurt am Main
- Assignee: Hoecsht Aktiengesellschaft
- Current Assignee: Hoecsht Aktiengesellschaft
- Current Assignee Address: DEX Frankfurt am Main
- Priority: DEX37281623 19870824
- Main IPC: C14C9/00
- IPC: C14C9/00
Abstract:
The leather is treated with a resin, quaternary ammonium compound, amine or polymer before the impregnation with the fluoro chemicals. With these auxiliaries, a uniform effectiveness of the fluoro chemicals which act on the surface is achieved, regardless of the procedure or the chemicals previously introduced into the leather. These auxiliaries can optionally also be applied to the leather together with the fluoro chemicals.
Public/Granted literature
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