Coating processes – Pretreatment – per se – or post-treatment – per se
Patent
1986-03-14
1988-03-29
Lawrence, Evan K.
Coating processes
Pretreatment, per se, or post-treatment, per se
134 42, 252164, 252170, 427 99, 427273, 427277, B05D 310, B05D 312
Patent
active
047343001
ABSTRACT:
Predetermined desired areas of solvent-insoluble parylene coatings are removed from substrates made of materials such as plastics, metals, composites, or ceramics by contacting the areas to be removed with a substance that causes the parylene coating to loosen from the substrate sufficiently to permit physical removal, as by peeling or scraping. The substance used is tetrahydrofuran alone, or in combination with a carrier that does not react with the tetrahydrofuran, the parylene, or the substrate, and that makes the mixture sufficiently viscous for application to desired coating areas without affecting other areas contiguous thereto.
REFERENCES:
patent: 3625763 (1971-12-01), Melillo
patent: 3762953 (1973-10-01), Clarke, Jr. et al.
patent: 3840387 (1974-10-01), Hofer
patent: 4116715 (1978-09-01), Smiggen et al.
Dunaetz Robert A.
Felstein Steven R.
Lee Rebecca
Lum Joan L.
Simanyi Lydia H.
Hughes Aircraft Company
Karambelas A. W.
Lachman M. E.
Lawrence Evan K.
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