IT1030936B - Procedimento per la polimerizzazione della formaldeide - Google Patents
Procedimento per la polimerizzazione della formaldeideInfo
- Publication number
- IT1030936B IT1030936B IT30818/74A IT3081874A IT1030936B IT 1030936 B IT1030936 B IT 1030936B IT 30818/74 A IT30818/74 A IT 30818/74A IT 3081874 A IT3081874 A IT 3081874A IT 1030936 B IT1030936 B IT 1030936B
- Authority
- IT
- Italy
- Prior art keywords
- formaldehyde
- polymerization
- procedure
- Prior art date
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
- 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
- C08G2/06—Catalysts
-
- 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
- C08G2/38—Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT30818/74A IT1030936B (it) | 1974-12-20 | 1974-12-20 | Procedimento per la polimerizzazione della formaldeide |
GB49527/75A GB1526293A (en) | 1974-12-20 | 1975-12-02 | Process for the polymerization of formaldehyde |
CH1561875A CH621134A5 (en) | 1974-12-20 | 1975-12-02 | Process for preparing polyoxymethylenes |
JP50150714A JPS5188594A (it) | 1974-12-20 | 1975-12-19 | |
US05/642,825 US4000217A (en) | 1974-12-20 | 1975-12-22 | Process for the polymerization of formaldehyde in the presence of anionically polymerized lactam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT30818/74A IT1030936B (it) | 1974-12-20 | 1974-12-20 | Procedimento per la polimerizzazione della formaldeide |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1030936B true IT1030936B (it) | 1979-04-10 |
Family
ID=11232256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT30818/74A IT1030936B (it) | 1974-12-20 | 1974-12-20 | Procedimento per la polimerizzazione della formaldeide |
Country Status (5)
Country | Link |
---|---|
US (1) | US4000217A (it) |
JP (1) | JPS5188594A (it) |
CH (1) | CH621134A5 (it) |
GB (1) | GB1526293A (it) |
IT (1) | IT1030936B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1043744B (it) * | 1975-10-30 | 1980-02-29 | Sir Soc Italiana Resine Spa | Copolimeri a blocchi |
US10557674B1 (en) * | 2018-10-11 | 2020-02-11 | Dimitrios Mantas | Buffer assembly for firearms |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2993025A (en) * | 1956-07-26 | 1961-07-18 | Du Pont | Polyoxymethylene compositions stabilized with a synthetic superpolyamide |
NL275396A (it) * | 1961-03-29 | |||
US3235624A (en) * | 1962-12-04 | 1966-02-15 | Tenneco Chem | Stabilized polyoxymethylene compositions |
US3288885A (en) * | 1963-04-04 | 1966-11-29 | Tenneco Chem | Composition for stabilizing polyacetals comprising (1) nu-acyl-p-aminophenol, (2) a superpolyamide, and (3) a diester of a thiodialkanoic acid |
JPS50151262A (it) * | 1974-05-29 | 1975-12-04 |
-
1974
- 1974-12-20 IT IT30818/74A patent/IT1030936B/it active
-
1975
- 1975-12-02 GB GB49527/75A patent/GB1526293A/en not_active Expired
- 1975-12-02 CH CH1561875A patent/CH621134A5/it not_active IP Right Cessation
- 1975-12-19 JP JP50150714A patent/JPS5188594A/ja active Pending
- 1975-12-22 US US05/642,825 patent/US4000217A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH621134A5 (en) | 1981-01-15 |
JPS5188594A (it) | 1976-08-03 |
GB1526293A (en) | 1978-09-27 |
US4000217A (en) | 1976-12-28 |
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