GB996483A - Oxymethylene polymers - Google Patents
Oxymethylene polymersInfo
- Publication number
- GB996483A GB996483A GB3463861A GB3463861A GB996483A GB 996483 A GB996483 A GB 996483A GB 3463861 A GB3463861 A GB 3463861A GB 3463861 A GB3463861 A GB 3463861A GB 996483 A GB996483 A GB 996483A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- acids
- polymer chains
- units
- anhydrides
- 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
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
- C08G2/18—Copolymerisation of aldehydes or 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Polyethers (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
An oxymethylene polymer having polymer chains containing from one to twenty-five per cent oxyalkylene units having more than one carbon atom at least 80% of these oxyalkylene units being present in segments of from 1 to 3 units and the polymer chains having terminal hydroxyl groups is reacted with an acylating agent. The polymers may be made by the copolymerization of trioxane with ethylene oxide, dioxolane, 1,3,5-trioxepane, 1-3-dioxane, trimethylene oxide, pentamethylene oxide, 1,2-propylene oxide, 1,2-butylene oxide, neopentyl formal, pentaerythritol diformal, paraldehyde, tetrahydrofurane and butadiene monoxide. Specified acylating agents are acetic anhydrides -preferred: the anhydrides of other aliphatic acids, of cycloaliphatic acids, of aromatic acids and of heterocyclic acid while mixed anhydrines may be used. Acid halides, e.g. benzoyl chloride, may also be used. The usual esterification catalysts may be present. Specification 903,668 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6055560A | 1960-10-05 | 1960-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB996483A true GB996483A (en) | 1965-06-30 |
Family
ID=22030247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3463861A Expired GB996483A (en) | 1960-10-05 | 1961-09-27 | Oxymethylene polymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB996483A (en) |
-
1961
- 1961-09-27 GB GB3463861A patent/GB996483A/en not_active Expired
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