发明名称 |
WATER-RESISTANT ADHESIVE BASED ON A VINYL ACTATE EMULSION POLYMER CONTAINING A NONIONIC POLYURETHANE |
摘要 |
<p>The present invention relates to an aqueous emulsion polymer which is useful as a woodworking adhesive. The polymer is prepared by reacting vinyl acetate with an N-methylol containing copolymerizable monomer in the presence of polyvinyl alcohol wherein at least 85% of the polyvinyl alcohol is hydrolyzed and a water-dispersible nonionic polyurethane. The polyurethane is prepared by reacting (i) an organic polyisocyanate, (ii) water-soluble polyalkylene glycols containing at least 70 weight percent of ethylene glycol units, and (iii) polyhydric branched alcohols containing at least three hydroxyl groups per molecule.</p> |
申请公布号 |
CA2260488(A1) |
申请公布日期 |
1999.07.30 |
申请号 |
CA19992260488 |
申请日期 |
1999.01.28 |
申请人 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
发明人 |
NORTHOVER, JAMES A.;FARWAHA, RAJEEV;YEARWOOD, GODRIC S.;LIVERANCE, PATRICIA A. M. |
分类号 |
C08F2/16;C08F218/08;C08F261/04;C08F283/00;C09J151/00;(IPC1-7):C09J131/04;C08F2/30 |
主分类号 |
C08F2/16 |
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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