BE615901A - Perfectionnements à la formation d'images dans des pellicules opaques pouvant être rendues transparentes par pression - Google Patents
Perfectionnements à la formation d'images dans des pellicules opaques pouvant être rendues transparentes par pressionInfo
- Publication number
- BE615901A BE615901A BE615901A BE615901A BE615901A BE 615901 A BE615901 A BE 615901A BE 615901 A BE615901 A BE 615901A BE 615901 A BE615901 A BE 615901A BE 615901 A BE615901 A BE 615901A
- Authority
- BE
- Belgium
- Prior art keywords
- enhancements
- pressing
- image formation
- made transparent
- opaque films
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/42—Singly bound oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/68—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Hydrogenated Pyridines (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US615901XA | 1961-04-10 | 1961-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE615901A true BE615901A (fr) | 1962-10-02 |
Family
ID=22036777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE615901A BE615901A (fr) | 1961-04-10 | 1962-04-02 | Perfectionnements à la formation d'images dans des pellicules opaques pouvant être rendues transparentes par pression |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE615901A (fr) |
| GB (1) | GB615901A (fr) |
-
1945
- 1945-09-19 GB GB24248/45A patent/GB615901A/en not_active Expired
-
1962
- 1962-04-02 BE BE615901A patent/BE615901A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB615901A (en) | 1949-01-13 |
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