发明名称 |
Process for the preparation of an aqueous dispersion of an anionic polyurethane free of volatile tertiary amines |
摘要 |
The present invention relates to a process for the preparation of an aqueous dispersion of an anionic polyurethane. According to the invention, a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent. The process of the invention comprises the steps of: dispersion of an anionic isocyanate functional polyurethane prepolymer in water in the presence of a tertiary amine functional urethane polymer or oligomer and chain extension of the anionic polyurethane prepolymer with a reactive hydrogen functional material during or after the dispersion in water. |
申请公布号 |
AU1179401(A) |
申请公布日期 |
2001.04.23 |
申请号 |
AU20010011794 |
申请日期 |
2000.10.16 |
申请人 |
STAHL INTERNATIONAL B.V. |
发明人 |
LAURENTIUS CORNELIUS JOSEPHUS HESSELMANS;JOSEP OLLER CHIRIVELLA |
分类号 |
C08G18/10;C08G18/08;C08G18/65;C09D5/00;C09D175/04 |
主分类号 |
C08G18/10 |
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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