Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1982-09-29
1984-11-06
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430286, 430927, 430288, 430916, 525440, 525455, 525920, 560 25, 560 26, 560158, 20415919, C07C125073, G03C 170
Patent
active
044812817
ABSTRACT:
A polymer composition comprising a urethane having terminal unsaturation and a terminal carboxyl group and which is capable of further free radical polymerization has been synthesized. This polymer can be a liquid or a solid depending on the molecular weight and backbone of the polymer. This polymer as a liquid has been found to be very useful in producing printed circuit boards by photo resist processes.
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Hein Paul R.
Tsao Jung-Hsien
Baker William L.
Barrett Carole F.
Hamilton Cynthia
Kittle John E.
McGreal Michael J.
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