发明授权
- 专利标题: Process for dressing leather by a treatment using rubber latices
- 专利标题(中): 使用橡胶胶乳处理皮革的方法
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申请号: US206069申请日: 1980-11-12
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公开(公告)号: US4330597A公开(公告)日: 1982-05-18
- 发明人: Ferdinand Heins , Leo Tork , Wolfgang Hohne
- 申请人: Ferdinand Heins , Leo Tork , Wolfgang Hohne
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX2946435 19791117
- 主分类号: C14C11/00
- IPC分类号: C14C11/00 ; B05D3/02 ; B05D3/12 ; B32B9/02 ; C14C9/00
摘要:
Advantages in the dressing of leather, especially of split leather, with a synthetic rubber latex are obtained if in the leather dressing, the rubber latex is reacted with from 0.5 to 50% by weight, based on solid rubber, of one or more oxides and/or hydroxides of one or more bivalent metals and the leather is treated with a non-polymerized rubber latex which is produced in a one-stage process up to a monomer conversion of from 70 to 95% by weight, by emulsion polymerization of:(A) from 1 to 10 parts by weight of one or more .alpha.,.beta.-monoethylenically unsaturated carboxylic acids; and(B) from 90 to 99 parts by weight of a mixture of(a) from 10 to 90 parts by weight of butadiene and(b) from 10 to 90 parts by weight of styrene and/or acrylonitrile, wherein the quantity of acrylonitrile in the mixture amounts to a maximum of 50 parts by weight.