发明授权
- 专利标题： Melamine-formaldehyde condensates and mixtures thereof
- 专利标题（中）： 三聚氰胺 - 甲醛缩合物及其混合物
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申请号： US590215申请日： 1975-06-25
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公开(公告)号： US4039493A公开(公告)日： 1977-08-02
- 发明人: Manfred Schon , Helmut Durr , Dieter Plath , Karlfried Keller , Walter Michel
- 申请人： Manfred Schon , Helmut Durr , Dieter Plath , Karlfried Keller , Walter Michel
- 申请人地址： DT
- 专利权人： Cassella Farbwerke Mainkur Aktiengesellschaft
- 当前专利权人： Cassella Farbwerke Mainkur Aktiengesellschaft
- 当前专利权人地址： DT
- 优先权： DT2430899 19740627
- 主分类号： C08G12/00
- IPC分类号： C08G12/00 ; C08G12/32 ; C08G12/42 ; C08L61/20 ; C08L67/00 ; C09D133/06 ; C08K5/05 ; C08L91/00
摘要：
Low-viscosity high-solids-content melamine-formaldehyde condensates having high reactivity, low content of free formaldehyde and good compatibility, are prepared by effecting condensation in an alcohol having up to 3 carbons, then concentrating the condensate and heating the concentrate in a higher alcohol having from 3 to 18 carbons and again concentrating. The final product cures on heating to a hard glossy film and can be added to other uncured resins to improve the hardness of their films.
公开/授权文献
- US4724766A Cluster bomb system and method 公开/授权日：1988-02-16