发明名称 |
Hydrophilic nitrile rubber |
摘要 |
The present invention relates to a hydrophilic nitrile rubber which is particularly useful in making photopolymer formulations for printing plates utilized in flexographic printing applications. The hydrophilic nitrile rubber of this invention is made by treating a standard carboxylated nitrile rubber with a sulfur trioxide/dimethylformamide complex. This invention more specifically discloses a process for preparing a hydrophilic nitrile rubber composition which is particularly useful in making photopolymer formulations for printing plates, said process comprising the steps of (1) reacting a carboxylated nitrile rubber with a complex of sulfur trioxide and dimethylformamide to produce a nitrile rubber containing sulfonated carboxyl groups and (2) reacting the nitrile rubber containing sulfonated carboxyl groups with a salt selected from the group consisting of sodium hydroxide and potassium hydroxide to produce the hydrophilic nitrile rubber.
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申请公布号 |
US5969051(A) |
申请公布日期 |
1999.10.19 |
申请号 |
US19980128072 |
申请日期 |
1998.08.03 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
TOMPKIN, GARY RICHARD |
分类号 |
C08C19/20;C08F8/00;G03F7/033;(IPC1-7):C08F20/44 |
主分类号 |
C08C19/20 |
代理机构 |
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代理人 |
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地址 |
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