Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1991-03-18
1992-08-11
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
526285, 548156, C08L 4900
Patent
active
051379643
ABSTRACT:
This invention relates to novel thermochromic quaternized polyacetylene salt derivatives which are visually imageable by exposure to a light source generating energy in a wavelength of from about 400 nm to about 1500 nm said salt derivatives having a thermosensitivity of at least 50.degree. C. and defined by the formula
REFERENCES:
patent: 5004671 (1991-04-01), Nishimura et al.
patent: 5049428 (1991-09-01), Kanno et al.
Hornby John C.
Lewis David F.
ISP Investments Inc.
Maue Marilyn J.
Michl Paul R.
Ward Joshua J.
Yoon Tae H.
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