发明名称 |
HYDROPHILIC, OPEN-CELL, ELASTIC FOAMS WITH A MELAMINE/FORMALDEHYDE RESIN BASE, PRODUCTION THEREOF AND USE THEREOF IN HYGIENE PRODUCTS |
摘要 |
The invention relates to open-cell, elastic foams consisting of melamine/formaldehyde resins having a drop absorption speed of less than five seconds and a formaldehyde emission in accordance with EU standard EN ISO 14184-1 of less than 100 mg formaldehyde/kg foam, to a method for producing hydrophilic, open-cell, elastic foams by (a) heating an aqueous solution or dispersion containing, respectively, at least one melamine/formaldehyde precondensate, an emulsifier, an expanding agent and a hardener, forming a foam and cross-linking the precondensate, (b) subsequently tempering the foam for a period of 1 to 180 minutes at 120 to 300 DEG C, whereby volatile parts are removed, and (c) treating, during or after tempering, with at least one hydrophilization agent and/or with ozone, a corona discharge or a plasma; and to the use of the foams in hygiene products for absorbing, distributing and immobilising body fluids. |
申请公布号 |
WO0226871(A1) |
申请公布日期 |
2002.04.04 |
申请号 |
WO2001EP10848 |
申请日期 |
2001.09.20 |
申请人 |
BASF AKTIENGESELLSCHAFT;HAEHNLE, HANS-JOACHIM;BAUMGARTL, HORST;BECK, MARTIN;HERFERT, NORBERT;MOHR, BERNHARD;HUFF, JUERGEN |
发明人 |
HAEHNLE, HANS-JOACHIM;BAUMGARTL, HORST;BECK, MARTIN;HERFERT, NORBERT;MOHR, BERNHARD;HUFF, JUERGEN |
分类号 |
A61F13/53;A61F13/00;A61F13/02;A61F13/15;A61F13/49;A61L15/26;A61L15/42;C08G12/32;C08J9/14;C08J9/36 |
主分类号 |
A61F13/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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