FR1445513A - Derivatives of 1, 3, 3, -trimethyl-spiro - Google Patents

Derivatives of 1, 3, 3, -trimethyl-spiro

Info

Publication number
FR1445513A
FR1445513A FR11057A FR11057A FR1445513A FR 1445513 A FR1445513 A FR 1445513A FR 11057 A FR11057 A FR 11057A FR 11057 A FR11057 A FR 11057A FR 1445513 A FR1445513 A FR 1445513A
Authority
FR
France
Prior art keywords
spiro
trimethyl
derivatives
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
FR11057A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 US355697A external-priority patent/US3290331A/en
Application filed by NCR Corp, National Cash Register Co filed Critical NCR Corp
Priority to FR11057A priority Critical patent/FR1445513A/en
Application granted granted Critical
Publication of FR1445513A publication Critical patent/FR1445513A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR11057A 1964-03-30 1965-03-29 Derivatives of 1, 3, 3, -trimethyl-spiro Expired FR1445513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR11057A FR1445513A (en) 1964-03-30 1965-03-29 Derivatives of 1, 3, 3, -trimethyl-spiro

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US355697A US3290331A (en) 1964-03-30 1964-03-30 6'no2, 7'-methoxy indolino-benzospiropyrans
FR11057A FR1445513A (en) 1964-03-30 1965-03-29 Derivatives of 1, 3, 3, -trimethyl-spiro

Publications (1)

Publication Number Publication Date
FR1445513A true FR1445513A (en) 1966-07-15

Family

ID=26162710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR11057A Expired FR1445513A (en) 1964-03-30 1965-03-29 Derivatives of 1, 3, 3, -trimethyl-spiro

Country Status (1)

Country Link
FR (1) FR1445513A (en)

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