发明名称 |
Anionic water dispersed polyurethane polymer for improved coatings and adhesives |
摘要 |
Improved anionic water dispersible polyurethanes are disclosed. Polyurethane-urea polymers in aqueous dispersion are obtained by chain extending an NCO-containing prepolymer in aqueous medium. The NCO-containing prepolymer is prepared by reacting a polyisocyanate with an active hydrogen-containing compound such as a polyol and dimethylolpropionic acid (DMPA) to form a pre-prepolymer and to this is added a diamine monomer containing a pendant aliphatic, to form the prepolymer which is then dispersed in water and chain extended. The improved anionic water dispersible polyurethane polymers of the invention form excellent coatings and adhesives.
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申请公布号 |
US5354807(A) |
申请公布日期 |
1994.10.11 |
申请号 |
US19930101430 |
申请日期 |
1993.08.03 |
申请人 |
H. B. FULLER LICENSING & FINANCING, INC. |
发明人 |
DOCHNIAK, MICHAEL J. |
分类号 |
C08G18/08;C08G18/32;C08G18/65;C08G18/83;(IPC1-7):C08L75/04 |
主分类号 |
C08G18/08 |
代理机构 |
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主权项 |
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地址 |
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