发明名称 |
Flame retardant radiation sensitive element |
摘要 |
A radiation sensitive element comprising a support bearing a layer of photopolymerizable composition which comprises (1) at least one addition polymerizable ethylenically unsaturated compound, (2) an initiator activatable in the ultraviolet to visible region of the spectrum, and (3) at least 20% by weight of a polymeric binder containing at least 5% by weight of acrylonitrile, the composition having present at least 5% by weight halogen based on the total weight of composition covalently bonded to an aromatic moiety of at least one of said components of the composition and/or a conjugated vinyl component. The elements withstand soldering and are flame retardant and are useful as solder masks.
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申请公布号 |
US4278752(A) |
申请公布日期 |
1981.07.14 |
申请号 |
US19800121438 |
申请日期 |
1980.02.14 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
GERVAY, JOSEPH E.;PILETTE, YVAN P. |
分类号 |
G03F7/033;H05K3/28;(IPC1-7):G03C1/68 |
主分类号 |
G03F7/033 |
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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