发明名称 |
PROCESSO APERFEICOADO PARA DETECCAO DE ANTIGENO EM UMA AMOSTRA |
摘要 |
<p>In a method for making a molded polyurethane article having a nonwoven material secured to the article's surface which comprises placing the nonwoven material on the internal surface of a mold, adding and foaming a polyurethane composition in the mold and recovering the molded polyurethane article with the nonwoven material attached to the surface of the article, the improvement which comprises coating the nonwoven material with a composition consisting essentially of a fully hydrolyzed polyvinyl alcohol, an organic polyisocyanate and a catalyst for the urethane reaction, and curing the coating on the nonwoven material prior to adding and foaming the polyurethane composition in the mold.</p> |
申请公布号 |
BR8706781(A) |
申请公布日期 |
1988.07.19 |
申请号 |
BR19878706781 |
申请日期 |
1987.12.14 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
ROBERT GABRIEL PETRELLA;MICHAEL SCARPATI |
分类号 |
B29C39/12;B29C39/10;B29C44/12;B29K75/00;B29K105/04;C08G18/62;C08J5/00;C08J9/02;C09D175/04;(IPC1-7):G01N33/569;G01N33/577 |
主分类号 |
B29C39/12 |
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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