NL6407019A - - Google Patents
Info
- Publication number
- NL6407019A NL6407019A NL6407019A NL6407019A NL6407019A NL 6407019 A NL6407019 A NL 6407019A NL 6407019 A NL6407019 A NL 6407019A NL 6407019 A NL6407019 A NL 6407019A NL 6407019 A NL6407019 A NL 6407019A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/08—Polymerisation of formaldehyde
-
- 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
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/60—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/12—Polymerisation of acetaldehyde or cyclic oligomers thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/14—Polymerisation of single aldehydes not provided for in groups C08G2/08 - C08G2/12
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/16—Polymerisation of single ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/30—Chemical modification by after-treatment
- C08G2/36—Chemical modification by after-treatment by depolymerisation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR938966A FR1373042A (fr) | 1963-06-21 | 1963-06-21 | Procédé de préparation de formaldéhyde de haute pureté |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6407019A true NL6407019A (xx) | 1964-12-22 |
Family
ID=8806650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6407019A NL6407019A (xx) | 1963-06-21 | 1964-06-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3498951A (xx) |
| BE (1) | BE649529A (xx) |
| DE (1) | DE1232565B (xx) |
| FR (1) | FR1373042A (xx) |
| GB (1) | GB1064384A (xx) |
| NL (1) | NL6407019A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626749A1 (de) * | 1996-07-03 | 1998-01-08 | Linde Ag | Verfahren zum Herstellen eines Gasgemisches |
| CN110256216A (zh) * | 2019-07-03 | 2019-09-20 | 衡水市银河化工有限责任公司 | 一种含多聚甲醛粉尘甲醛的解聚方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124424A (en) * | 1964-03-10 | high temperature thermal cracking | ||
| GB725642A (en) * | 1952-09-18 | 1955-03-09 | Celanese Corp | Production of anhydrous formaldehyde |
| US2790755A (en) * | 1953-08-18 | 1957-04-30 | Du Pont | Distillation and fractional condensation of formaldehyde |
| US2784065A (en) * | 1954-04-29 | 1957-03-05 | Eastman Kodak Co | Ketene furnaces |
| DE1138752B (de) * | 1958-12-19 | 1962-10-31 | Hoechst Ag | Verfahren zur Herstellung von reinem Formaldehyd |
| US3199265A (en) * | 1961-03-02 | 1965-08-10 | Showa Deuko Kabushiki Kaisha | Method of purifying aldehydes and the apparatus therefor |
-
1963
- 1963-06-21 FR FR938966A patent/FR1373042A/fr not_active Expired
-
1964
- 1964-06-08 DE DEP34442A patent/DE1232565B/de active Pending
- 1964-06-19 GB GB25527/64A patent/GB1064384A/en not_active Expired
- 1964-06-19 BE BE649529A patent/BE649529A/xx unknown
- 1964-06-19 US US376463A patent/US3498951A/en not_active Expired - Lifetime
- 1964-06-19 NL NL6407019A patent/NL6407019A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3498951A (en) | 1970-03-03 |
| DE1232565B (de) | 1967-01-19 |
| FR1373042A (fr) | 1964-09-25 |
| BE649529A (xx) | 1964-12-21 |
| GB1064384A (en) | 1967-04-05 |