NL156679B - Werkwijze om gestabiliseerde geconcentreerde oplossingen van formaldehyde te bereiden. - Google Patents
Werkwijze om gestabiliseerde geconcentreerde oplossingen van formaldehyde te bereiden.Info
- Publication number
- NL156679B NL156679B NL6809750.A NL6809750A NL156679B NL 156679 B NL156679 B NL 156679B NL 6809750 A NL6809750 A NL 6809750A NL 156679 B NL156679 B NL 156679B
- Authority
- NL
- Netherlands
- Prior art keywords
- formaldehyde
- procedure
- concentrated solutions
- stabilized concentrated
- prepare stabilized
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/86—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1847667 | 1967-07-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6809750A NL6809750A (nl) | 1969-01-21 |
NL156679B true NL156679B (nl) | 1978-05-16 |
Family
ID=11152915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6809750.A NL156679B (nl) | 1967-07-17 | 1968-07-10 | Werkwijze om gestabiliseerde geconcentreerde oplossingen van formaldehyde te bereiden. |
Country Status (15)
Country | Link |
---|---|
US (1) | US3658913A (nl) |
AT (1) | AT278733B (nl) |
BE (1) | BE718127A (nl) |
CH (1) | CH496638A (nl) |
CS (1) | CS149631B2 (nl) |
DD (1) | DD68496A5 (nl) |
DE (1) | DE1768915B1 (nl) |
DK (1) | DK134278B (nl) |
ES (1) | ES356209A1 (nl) |
FI (1) | FI49149C (nl) |
FR (1) | FR1576670A (nl) |
NL (1) | NL156679B (nl) |
NO (1) | NO130512C (nl) |
SE (1) | SE364943B (nl) |
YU (1) | YU33183B (nl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2358856C3 (de) * | 1973-11-26 | 1981-05-21 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Stabilisierung wäßriger Formaldehydlösungen |
DE3836047A1 (de) * | 1988-10-22 | 1990-04-26 | Degussa | Verfahren zur stabilisierung von waessrigen formaldehydloesungen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL126167C (nl) * | 1964-05-13 |
-
1968
- 1968-07-10 NL NL6809750.A patent/NL156679B/nl not_active IP Right Cessation
- 1968-07-10 SE SE09478/68A patent/SE364943B/xx unknown
- 1968-07-10 DK DK336968AA patent/DK134278B/da unknown
- 1968-07-10 NO NO2737/68A patent/NO130512C/no unknown
- 1968-07-10 FI FI681983A patent/FI49149C/fi active
- 1968-07-11 YU YU1660/68A patent/YU33183B/xx unknown
- 1968-07-11 FR FR1576670D patent/FR1576670A/fr not_active Expired
- 1968-07-12 AT AT675168A patent/AT278733B/de not_active IP Right Cessation
- 1968-07-12 DE DE19681768915 patent/DE1768915B1/de active Granted
- 1968-07-12 CS CS5141A patent/CS149631B2/cs unknown
- 1968-07-15 US US744624A patent/US3658913A/en not_active Expired - Lifetime
- 1968-07-16 DD DD13349668A patent/DD68496A5/xx unknown
- 1968-07-16 ES ES356209A patent/ES356209A1/es not_active Expired
- 1968-07-16 BE BE718127D patent/BE718127A/xx not_active IP Right Cessation
- 1968-07-17 CH CH1066368A patent/CH496638A/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH496638A (de) | 1970-09-30 |
DE1768915B1 (de) | 1972-05-31 |
FR1576670A (nl) | 1969-08-01 |
NO130512C (nl) | 1974-12-27 |
DD68496A5 (nl) | 1969-08-20 |
DK134278C (nl) | 1977-03-07 |
FI49149B (nl) | 1974-12-31 |
NL6809750A (nl) | 1969-01-21 |
FI49149C (fi) | 1975-04-10 |
DK134278B (da) | 1976-10-11 |
BE718127A (nl) | 1969-01-16 |
NO130512B (nl) | 1974-09-16 |
SE364943B (nl) | 1974-03-11 |
AT278733B (de) | 1970-02-10 |
US3658913A (en) | 1972-04-25 |
ES356209A1 (es) | 1970-04-01 |
YU33183B (en) | 1976-06-30 |
YU166068A (en) | 1975-12-31 |
CS149631B2 (nl) | 1973-07-25 |
DE1768915C2 (nl) | 1973-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: MONTECATINI |
|
V4 | Discontinued because of reaching the maximum lifetime of a patent |