FR1303676A - Direct positive photographic process - Google Patents

Direct positive photographic process

Info

Publication number
FR1303676A
FR1303676A FR871169A FR871169A FR1303676A FR 1303676 A FR1303676 A FR 1303676A FR 871169 A FR871169 A FR 871169A FR 871169 A FR871169 A FR 871169A FR 1303676 A FR1303676 A FR 1303676A
Authority
FR
France
Prior art keywords
photographic process
direct positive
positive photographic
direct
positive
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR871169A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Horizons Inc
Original Assignee
Horizons Inc
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
Priority claimed from US50696A external-priority patent/US3102027A/en
Application filed by Horizons Inc filed Critical Horizons Inc
Priority to FR871169A priority Critical patent/FR1303676A/en
Application granted granted Critical
Publication of FR1303676A publication Critical patent/FR1303676A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0075—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of an heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • C09B23/105—The polymethine chain containing an even number of >CH- groups two >CH- groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR871169A 1960-08-19 1961-08-18 Direct positive photographic process Expired FR1303676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR871169A FR1303676A (en) 1960-08-19 1961-08-18 Direct positive photographic process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50696A US3102027A (en) 1960-08-19 1960-08-19 Direct positive dye bleach process and merocyanine composition therefor
FR871169A FR1303676A (en) 1960-08-19 1961-08-18 Direct positive photographic process

Publications (1)

Publication Number Publication Date
FR1303676A true FR1303676A (en) 1962-09-14

Family

ID=26191942

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871169A Expired FR1303676A (en) 1960-08-19 1961-08-18 Direct positive photographic process

Country Status (1)

Country Link
FR (1) FR1303676A (en)

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