Stock material or miscellaneous articles – Composite – Of polyamide
Reexamination Certificate
2006-04-18
2006-04-18
Hightower, P. Hampton (Department: 1711)
Stock material or miscellaneous articles
Composite
Of polyamide
C428S411100, C359S350000, C359S355000, C523S106000, C264S001310, C264S001320, C252S582000, C252S588000, C527S201000, C527S202000, C527S203000
Reexamination Certificate
active
07029758
ABSTRACT:
The present invention relates to the use of water soluble melanin in solid plastic films of polyvinyl alcohol to be used in conjunction with other plastics to make laminated sheets or lenses. Such laminates will be used as filters to protect against photochemical damage from electromagnetic radiation.
REFERENCES:
patent: 4698374 (1987-10-01), Gallas
patent: 5036115 (1991-07-01), Gallas
patent: 5047447 (1991-09-01), Gallas
patent: 5112883 (1992-05-01), Gallas
patent: 5158718 (1992-10-01), Thakrar et al.
patent: 5187207 (1993-02-01), Gallas
“Spectroscopical properties of porphyrin-melanin in polyvinyl alcohol film”, Izabela Hanz et al, Abstract, Department of Molecular Physics, Institute of Physics., Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland.
Eisner Melvin
Gallas James
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