发明授权
- 专利标题： Process for the production of stable polymers
- 专利标题（中）： 生产稳定聚合物的方法
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申请号： US11591779申请日： 2006-11-02
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公开(公告)号： US08110704B2公开(公告)日： 2012-02-07
- 发明人: James Michael Barnes , Hartmut Nefzger , Erika Bauer , Stefan Penninger , Thomas Schultz , Heinrich Lutz , Horst Di Mews , Charles S. Gracik
- 申请人： James Michael Barnes , Hartmut Nefzger , Erika Bauer , Stefan Penninger , Thomas Schultz , Heinrich Lutz , Horst Di Mews , Charles S. Gracik
- 申请人地址： US PA Pittsburgh DE Leverkusen
- 专利权人： Bayer MaterialScience LLC,Bayer MaterialScince AG
- 当前专利权人： Bayer MaterialScience LLC,Bayer MaterialScince AG
- 当前专利权人地址： US PA Pittsburgh DE Leverkusen
- 代理商 Lyndanne M. Whalen; Nolasn J. Cheung
- 主分类号： C07C265/00
- IPC分类号： C07C265/00 ; C07C291/00 ; C08F6/00 ; C08J3/00
摘要：
Stable NCO prepolymers are produced from polyisocyanates having a melting point greater than 70° C., preferably, naphthalene diisocyanate, having advantageous physical properties. An important feature of the process of the present invention is the rapid cooling of the prepolymer. The process of the present invention may be carried out on a continuous or batch basis. The prepolymers of the present invention are particularly suitable for the production of cast polyurethane elastomers.
公开/授权文献
- US20080108776A1 Process for the production of stable polymers 公开/授权日：2008-05-08
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