GB461979A - Methacrylic acid esters of polyhydric alcohols and their manufacture - Google Patents
Methacrylic acid esters of polyhydric alcohols and their manufactureInfo
- Publication number
- GB461979A GB461979A GB2388435A GB2388435A GB461979A GB 461979 A GB461979 A GB 461979A GB 2388435 A GB2388435 A GB 2388435A GB 2388435 A GB2388435 A GB 2388435A GB 461979 A GB461979 A GB 461979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycol
- hydroquinone
- methacrylic acid
- glycerol
- decamethylene
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
- C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
- C07C69/54—Acrylic acid esters; Methacrylic acid esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Methacrylic esters of polyhydric aliphatic alcohols, e.g. the mono-, di- or polymethacrylates of glycerol, diethylene glycol, decamethylene glycol, ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, 1 : 2-propylene glycol, butylene glycols, the a -and b -alkylglycerines, e.g. a -methylglycerine and its homologues, pentaerythritol, sorbitol and homologous polyhydric substituted and unsubstituted alcohols, are manufactured by reacting a lower alkyl ester of methacrylic acid with a polyhydric aliphatic alcohol or an alkali metal alcoholate thereof, in the presence of an ester interchange catalyst, e.g. sulphuric acid, preferably in the presence of an antipolymerization catalyst, e.g. hydroquinone, and if desired in the presence of an inert diluent, e.g. benzene, or an excess of the lower alkyl ester of methacrylic acid. The products may be polymerized. In examples: (1) diethylene glycol is treated with sodium and the product is heated with methyl methacrylate in the presence of hydroquinone, producing diethylene glycol dimethacrylate; (2) glycerol similarly yields glycerol trimethacrylate; (3) decamethylene glycol is heated with methyl methacrylate in the presence of benzene, sulphuric acid and hydroquinone, to produce decamethylene glycol dimethacrylate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2388435A GB461979A (en) | 1935-08-26 | 1935-08-26 | Methacrylic acid esters of polyhydric alcohols and their manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2388435A GB461979A (en) | 1935-08-26 | 1935-08-26 | Methacrylic acid esters of polyhydric alcohols and their manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB461979A true GB461979A (en) | 1937-02-26 |
Family
ID=10202869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2388435A Expired GB461979A (en) | 1935-08-26 | 1935-08-26 | Methacrylic acid esters of polyhydric alcohols and their manufacture |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB461979A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE923786C (en) * | 1952-04-13 | 1955-02-21 | Bayer Ag | Process for the preparation of hydroxyl-containing, unsaturated, polymerizable esters |
DE1067806B (en) * | 1954-09-09 | 1959-10-29 | Roehm & Haas Gmbh | Process for the continuous production of esters of acrylic and methacrylic acids with higher molecular weight alcohols |
-
1935
- 1935-08-26 GB GB2388435A patent/GB461979A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE923786C (en) * | 1952-04-13 | 1955-02-21 | Bayer Ag | Process for the preparation of hydroxyl-containing, unsaturated, polymerizable esters |
DE1067806B (en) * | 1954-09-09 | 1959-10-29 | Roehm & Haas Gmbh | Process for the continuous production of esters of acrylic and methacrylic acids with higher molecular weight alcohols |
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