发明授权
- 专利标题: Nonwoven products having low residual free formaldehyde content
- 专利标题(中): 无纺布产品具有低残留游离甲醛含量
-
申请号: US481216申请日: 1983-04-01
-
公开(公告)号: US4449978A公开(公告)日: 1984-05-22
- 发明人: John G. Iacoviello
- 申请人: John G. Iacoviello
- 申请人地址: PA Allentown
- 专利权人: Air Products and Chemicals, Inc.
- 当前专利权人: Air Products and Chemicals, Inc.
- 当前专利权人地址: PA Allentown
- 主分类号: A61L15/24
- IPC分类号: A61L15/24 ; D04H1/64 ; D21H17/35 ; D21H17/36 ; D21H17/37 ; D21H17/39 ; D21H17/45 ; A61F13/16 ; B05D3/02 ; B32B23/16
摘要:
A nonwoven product formed from a nonwoven web of fibers bonded together with a binder comprising an interpolymer of vinyl acetate/ethylene/N-methylol acrylamide/acrylamide, the interpolymer comprising about 5 to 40 wt % ethylene and an amount of N-methylol acrylamide and acrylamide which is about 3.0 to 10 wt % of the interpolymer, the N-methylol acrylamide being about 1.75 to 3.5 wt % and the acrylamide about 1.25 to 8.25 wt %. Such nonwoven products have a low residual free formaldehyde content and good tensile properties.
公开/授权文献
- US5699198A Internal focusing zoom lens system 公开/授权日:1997-12-16
信息查询
IPC分类: