BE602516A - Perfectionnements aux chromogènes photographiques - Google Patents

Perfectionnements aux chromogènes photographiques

Info

Publication number
BE602516A
BE602516A BE602516A BE602516A BE602516A BE 602516 A BE602516 A BE 602516A BE 602516 A BE602516 A BE 602516A BE 602516 A BE602516 A BE 602516A BE 602516 A BE602516 A BE 602516A
Authority
BE
Belgium
Prior art keywords
chromogen
enhancements
photographic
photographic chromogen
chromogen enhancements
Prior art date
Application number
BE602516A
Other languages
English (en)
Inventor
J C Firestine
J Q Umberger
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont filed Critical Du Pont
Publication of BE602516A publication Critical patent/BE602516A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
BE602516A 1960-04-13 1961-04-12 Perfectionnements aux chromogènes photographiques BE602516A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US602516XA 1924-10-04 1924-10-04

Publications (1)

Publication Number Publication Date
BE602516A true BE602516A (fr) 1961-10-12

Family

ID=22028321

Family Applications (1)

Application Number Title Priority Date Filing Date
BE602516A BE602516A (fr) 1960-04-13 1961-04-12 Perfectionnements aux chromogènes photographiques

Country Status (2)

Country Link
BE (1) BE602516A (fr)
FR (1) FR602516A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297471B (de) * 1964-09-23 1969-06-12 Du Pont Verfahren zur Herstellung einer Emulsion mit einem polymeren fotografischen Farbbildner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297471B (de) * 1964-09-23 1969-06-12 Du Pont Verfahren zur Herstellung einer Emulsion mit einem polymeren fotografischen Farbbildner

Also Published As

Publication number Publication date
FR602516A (fr) 1926-03-20

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