GB1102984A - Polymeric formals - Google Patents
Polymeric formalsInfo
- Publication number
- GB1102984A GB1102984A GB2563165A GB2563165A GB1102984A GB 1102984 A GB1102984 A GB 1102984A GB 2563165 A GB2563165 A GB 2563165A GB 2563165 A GB2563165 A GB 2563165A GB 1102984 A GB1102984 A GB 1102984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- units
- polymeric
- acid
- polyformal
- 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
- C08G2/10—Polymerisation of cyclic oligomers 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
- C08G2/12—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
- C08G2/18—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
- C08G2/38—Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
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)
- Polyesters Or Polycarbonates (AREA)
Abstract
Polymeric formals containing aromatic ester units are obtained by heating a dihydric alcohol containing an aromatic ester group with formaldehyde. An acid-reacting catalyst may be used. The alcohol may be one capable of forming a polyester on its own, so that both polyformal and polyester formation takes place. The polymer may be further reacted with a cyclic oligomer of formaldehyde to polymerize the oligomer to polyoxymethylene, to obtain a copolymer containing units of the polymeric formal and polyoxymethylene units. In examples polyformals are obtained by reacting bis-hydroxyethyl terephthalate with para-formaldehyde using methanesulphonic acid and p-toluenesulphonic acid as catalysts, and the polyformal is reacted with trioxane in the presence of boron trifluoride dibutyl ether complex. Other suitable dihydric alcohols are mentioned.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37705664A | 1964-06-22 | 1964-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1102984A true GB1102984A (en) | 1968-02-14 |
Family
ID=23487578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2563165A Expired GB1102984A (en) | 1964-06-22 | 1965-06-17 | Polymeric formals |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE665767A (en) |
DE (1) | DE1570360A1 (en) |
GB (1) | GB1102984A (en) |
NL (1) | NL6507852A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1505049A1 (en) * | 1999-07-22 | 2005-02-09 | SNAMPROGETTI S.p.A. | A process for the selective production of dialkyl-polyformals |
-
1965
- 1965-06-17 GB GB2563165A patent/GB1102984A/en not_active Expired
- 1965-06-18 NL NL6507852A patent/NL6507852A/xx unknown
- 1965-06-21 DE DE19651570360 patent/DE1570360A1/en active Pending
- 1965-06-22 BE BE665767D patent/BE665767A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1505049A1 (en) * | 1999-07-22 | 2005-02-09 | SNAMPROGETTI S.p.A. | A process for the selective production of dialkyl-polyformals |
Also Published As
Publication number | Publication date |
---|---|
BE665767A (en) | 1965-12-22 |
NL6507852A (en) | 1965-12-23 |
DE1570360A1 (en) | 1970-02-05 |
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