GB852438A - Improvements in and relating to pentaerythritol-olefinic ª‡,ª‰-unsaturated aldehyde resins - Google Patents
Improvements in and relating to pentaerythritol-olefinic ª‡,ª‰-unsaturated aldehyde resinsInfo
- Publication number
- GB852438A GB852438A GB25475/58A GB2547558A GB852438A GB 852438 A GB852438 A GB 852438A GB 25475/58 A GB25475/58 A GB 25475/58A GB 2547558 A GB2547558 A GB 2547558A GB 852438 A GB852438 A GB 852438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acrolein
- acid
- resins
- products
- catalysts
- 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
- C08G4/00—Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O—
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Resins are prepared by reacting an olefinic a , b -unsaturated aldehyde with pentaerythritol at a temperature above 40 DEG C. and in the presence of an acid activated sub-bentonite clay as catalyst, filtering the reaction mixture to remove solid matter and vacuum distilling the resulting substantially solid free reaction mixtures a , b -unsaturated aldehydes preferred for use in the present invention are those having less than eight carbon atoms and their halogen substitution products, e.g. acrolein, a -chloro-acrolein, a -methyl-acrolein, a -ethyl acrolein, a -ethoxy acrolein, crotonaldehyde, a -chlorocrotonaldehyde, and a -methyl crotonaldehyde. The sub-bentonite clays are preferably activated with sulphuric or hydrochloric acid and the products are good catalysts for the preparation of A-stage resins, but slow polymerization catalysts. The A-stage resins may be cured with acid catalysts such as sulphuric acid, p-toluenesulphonic acid, benzenesulphonic acid, mixed alkanesulphonic acids, boron trifluoride, aluminium trichloride, and diethyl sulphate. Several examples of the preparations of the resins are included in the Specification. The products are suitable for making laminates and moulded articles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US852438XA | 1957-08-09 | 1957-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB852438A true GB852438A (en) | 1960-10-26 |
Family
ID=22190362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25475/58A Expired GB852438A (en) | 1957-08-09 | 1958-08-08 | Improvements in and relating to pentaerythritol-olefinic ª‡,ª‰-unsaturated aldehyde resins |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB852438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3250788A (en) * | 1962-08-01 | 1966-05-10 | Union Carbide Corp | Process for making 4-(4-hydroxybutyl)-2-vinyl-1, 3-dioxolane |
-
1958
- 1958-08-08 GB GB25475/58A patent/GB852438A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3250788A (en) * | 1962-08-01 | 1966-05-10 | Union Carbide Corp | Process for making 4-(4-hydroxybutyl)-2-vinyl-1, 3-dioxolane |
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