发明申请
- 专利标题: In Situ Moisture Generation and Use of Polyfunctional Alcohols for Crosslinking of Silane-Functionalized Resins
- 专利标题(中): 多官能醇的原位水分产生和使用用于硅烷官能化树脂的交联
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申请号: US12740838申请日: 2008-10-13
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公开(公告)号: US20100297374A1公开(公告)日: 2010-11-25
- 发明人: Bharat I. Chaudhary , Jeffrey M. Cogen , Saurav S. Sengupta
- 申请人: Bharat I. Chaudhary , Jeffrey M. Cogen , Saurav S. Sengupta
- 申请人地址: US MI Midland
- 专利权人: DOW GLOBAL TECHNOLOGIES INC.
- 当前专利权人: DOW GLOBAL TECHNOLOGIES INC.
- 当前专利权人地址: US MI Midland
- 国际申请: PCT/US2008/079724 WO 20081013
- 主分类号: B32B1/08
- IPC分类号: B32B1/08 ; C08G77/00 ; C08F30/08 ; B05D5/12 ; H01B3/00
摘要:
Polymer compositions comprise a (i) silane-functionalized polymer, e.g., a polyethylene grafted with vinyl triethoxy silane, (H) polyfunctional alcohol e.g., α,α,α′,α′˜tetramethyl-I,3-benzenediethanol and, optionally, (iii) acid, e.g., an alkylated aryl disulfonic acid. The use of polyfunctional alcohols in the absence of a strong acid yields a light-crosslinking of the silane-functionalized polymer and this, in turn, provides a polymer melt with improved extensional properties such as elongational viscosity and melt strength. The use of a polyfunctional alcohol in combination with a blocked strong acid provides a slow rate of crosslinking during melt processing and a high degree of ultimate crosslinking after the polymer composition has been shaped or molded.