Light sensitive tropochromic coating
372,637. Inkless printing by chemical reaction. KODAK, Ltd., Kingsway, London.-(Assignees of Hickman, K. C. D. and Staib, L. A.; Kodak Park, Rochester, New York, U.S.A.) Aug. 6, 1931, No. 22265. Convention date, Aug. 7, 1930. [Class 100 (ii).] The Specification as open to inspection under Sect. 91 (...
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| creator | JR. LUDWIG A. STAIB HICKMAN KENNETH C. D |
| description | 372,637. Inkless printing by chemical reaction. KODAK, Ltd., Kingsway, London.-(Assignees of Hickman, K. C. D. and Staib, L. A.; Kodak Park, Rochester, New York, U.S.A.) Aug. 6, 1931, No. 22265. Convention date, Aug. 7, 1930. [Class 100 (ii).] The Specification as open to inspection under Sect. 91 (3) (a) describes also materials sensitive to light, heat, electricity, or chemical stimulus comprising a sulphide-forming metallic salt and an organic compound capable of yielding sulphur. A layer sensitive to ammonia consists of lead acetate, thiobenzamide, and acetic acid. A heat-sensitive layer is formed from nickel acetate, thioacetamide and acetic acid. Line engravings may be made by rolling heat sensitive layers in contact with a heated printing block. This subject-matter does not appear in the Specification as accepted. |
| format | Patent |
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Aug. 6, 1931, No. 22265. Convention date, Aug. 7, 1930. [Class 100 (ii).] The Specification as open to inspection under Sect. 91 (3) (a) describes also materials sensitive to light, heat, electricity, or chemical stimulus comprising a sulphide-forming metallic salt and an organic compound capable of yielding sulphur. A layer sensitive to ammonia consists of lead acetate, thiobenzamide, and acetic acid. A heat-sensitive layer is formed from nickel acetate, thioacetamide and acetic acid. Line engravings may be made by rolling heat sensitive layers in contact with a heated printing block. This subject-matter does not appear in the Specification as accepted.</description><language>eng</language><subject>AUXILIARY PROCESSES IN PHOTOGRAPHY ; CINEMATOGRAPHY ; COLOUR PRINTING ; ELECTROGRAPHY ; HOLOGRAPHY ; LINING MACHINES ; PERFORMING OPERATIONS ; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES ; PHOTOGRAPHY ; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES ; PHYSICS ; PRINTING ; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES ; STAMPS ; TRANSPORTING ; TYPEWRITERS</subject><creationdate>1933</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19330214&DB=EPODOC&CC=US&NR=1897843A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19330214&DB=EPODOC&CC=US&NR=1897843A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JR. LUDWIG A. STAIB</creatorcontrib><creatorcontrib>HICKMAN KENNETH C. D</creatorcontrib><title>Light sensitive tropochromic coating</title><description>372,637. Inkless printing by chemical reaction. KODAK, Ltd., Kingsway, London.-(Assignees of Hickman, K. C. D. and Staib, L. A.; Kodak Park, Rochester, New York, U.S.A.) Aug. 6, 1931, No. 22265. Convention date, Aug. 7, 1930. [Class 100 (ii).] The Specification as open to inspection under Sect. 91 (3) (a) describes also materials sensitive to light, heat, electricity, or chemical stimulus comprising a sulphide-forming metallic salt and an organic compound capable of yielding sulphur. A layer sensitive to ammonia consists of lead acetate, thiobenzamide, and acetic acid. A heat-sensitive layer is formed from nickel acetate, thioacetamide and acetic acid. Line engravings may be made by rolling heat sensitive layers in contact with a heated printing block. 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A heat-sensitive layer is formed from nickel acetate, thioacetamide and acetic acid. Line engravings may be made by rolling heat sensitive layers in contact with a heated printing block. This subject-matter does not appear in the Specification as accepted.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY COLOUR PRINTING ELECTROGRAPHY HOLOGRAPHY LINING MACHINES PERFORMING OPERATIONS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS |
| title | Light sensitive tropochromic coating |
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