GB737091A - Improvements in or relating to the preparation of polyesters and polymers thereof - Google Patents
Improvements in or relating to the preparation of polyesters and polymers thereofInfo
- Publication number
- GB737091A GB737091A GB8725/52A GB872552A GB737091A GB 737091 A GB737091 A GB 737091A GB 8725/52 A GB8725/52 A GB 8725/52A GB 872552 A GB872552 A GB 872552A GB 737091 A GB737091 A GB 737091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diethylene glycol
- per cent
- tannins
- tannin
- styrene
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/46—Polyesters chemically modified by esterification
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Polyesters suitable for copolymerization with styrene are obtained from an a -unsaturated a ,b -dicarboxylic acid and a saturated alcohol (glycols or glycerols) by performing the condensation in the presence of a natural tannin as inhibitor and continuing the reaction until a polymer having a molecular weight of at least 4000, and, if desired, up to 30,000, is obtained. Natural tannins are defined as hydrolysable slightly polymerized pyrogallic tannins, e.g. gallnut tannin or highly polymerized pyrocatechuic tannins, e.g. tannins of oak, chestnut, quebracho and catechu. In examples: (1) maleic anhydride and diethylene glycol and 0.1 per cent commercial tannic acid are heated at 180 DEG C. under an inert gas until a polymer having an acid number of 1-2 is obtained; (2) maleic acid, diethylene glycol with 5 per cent excess diethylene glycol and 0.01 alcoholic tannin solution are heated to 210 DEG C. for 6-8 hours and then at 180 DEG C.; (3) maleic acid and sebacic acids in equal quantities with stoichiometric amounts of diethylene glycol are condensed in presence of a 0.1 per cent ether solution of tannin. The further polymerization of the polyester or copolymerization of the polyester with styrene is effected in presence of an initiator consisting of (a) benzoyl peroxide or (b) cyclopentanone peroxide, the initiator (a) being used in conjunction with an accelerator consisting of an amine-alcohol and the initiator (b) being used in conjunction with accelerators comprising the abietates, linoleates, oleates or naphthenates of cobalt, manganese, lead, or zinc. Fillers, e.g. ZnO, TiO2, kaolin, talc, ethyl cellulose, cellulose acetate, asbestos, alumina, carborundum or synthetic fibres may be added. The copolymerization reaction is of the contact low-pressure type and may be effected in situ at room temperatures. In examples: (a) 65-70 per cent high molecular weight diethylene glycol maleate and 35-30 per cent styrene are copolymerized in presence of benzoyl peroxide and diethanolamine or triethanolamine; traces of monoethanolamine have a controlling effect on the polymerization; (b) in a similar manner cyclohexanone peroxide is used with cobalt abietate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR737091X | 1951-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB737091A true GB737091A (en) | 1955-09-21 |
Family
ID=9131584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8725/52A Expired GB737091A (en) | 1951-04-04 | 1952-04-04 | Improvements in or relating to the preparation of polyesters and polymers thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB737091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016118411A1 (en) * | 2015-01-21 | 2016-07-28 | Resinate Materials Group, Inc. | High recycle content polyols from thermoplastic polyesters and lignin or tannin |
-
1952
- 1952-04-04 GB GB8725/52A patent/GB737091A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016118411A1 (en) * | 2015-01-21 | 2016-07-28 | Resinate Materials Group, Inc. | High recycle content polyols from thermoplastic polyesters and lignin or tannin |
| US9481760B2 (en) | 2015-01-21 | 2016-11-01 | Resinate Materials Group, Inc. | High recycle content polyols from thermoplastic polyesters and lignin or tannin |
| US9988489B2 (en) | 2015-01-21 | 2018-06-05 | Resinate Materials Group, Inc. | High recycle content polyols from thermoplastic polyesters and lignin or tannin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2510503A (en) | Polymers and copolymers of unsaturated triazines | |
| US3988273A (en) | Aqueous coating composition | |
| US2839514A (en) | Copolymer of allyl glycidyl monoether and styrene | |
| NZ197545A (en) | Monomer compositions and coating and impregnating compositions containing them | |
| GB604284A (en) | A process of polymerising esters of unsaturated alcohols | |
| US4281091A (en) | Unsaturated melamine condensates | |
| US3516955A (en) | Curable compositions containing an epoxy,an unsaturated polyester,and a polymerizable vinyl monomer | |
| US2437962A (en) | Copolymers of allyl esters of polybasic acid with saturated monohydric alcohol esters of unsaturated polycarboxylic acid | |
| GB737091A (en) | Improvements in or relating to the preparation of polyesters and polymers thereof | |
| US4280938A (en) | High solids air-drying coating compositions | |
| US2834747A (en) | Co-polymers from aryl-substituted butenyl alcohols, ethers, and esters and a conjugated diene, compositions containing same, and method of making | |
| US5480954A (en) | Allyl ester copolymers with allylic alcohols or propoxylated allylic alcohols | |
| US4293461A (en) | Unsaturated melamine condensates | |
| US2753385A (en) | Modified synthetic drying oil | |
| EP0041848B1 (en) | Unsaturated melamine condensates and high solids coating compositions thereof and a process for preparing such condensates | |
| US2276176A (en) | Copolymers of esters of alpha-methylene open chain aliphatic monocarboxylic acids with frosting drying oil varnishes | |
| US3275711A (en) | Air-drying linear polyester resins | |
| US2579079A (en) | Interpolymers of mono-2-alkenyl ethers of saturated monohydric alcohols or phenols with esters of saturated monohydric alcohols or phenols and alpha-unsat-urated aliphatic carboxylic acids | |
| US3214488A (en) | Composition comprising polymethyl ether of polymethylol melamine and copolymer of olefin and carboxyl monomer | |
| US2856309A (en) | Unsaturated hydrocarbon drying oils containing a hardening agent and a process of making them | |
| US4307001A (en) | High solids coating compositions | |
| US3344097A (en) | Coating compositions comprising alkylolated acrylamide-other vinyl monomer-drying oil interpolymers | |
| US3176050A (en) | Fully curable unsaturated polyesters treated with allyl alcohol | |
| Imai et al. | Polymerization of monoallyl phthalate | |
| EP0031241B1 (en) | An unsaturated melamine condensate, a method of preparing same, a high solids air-drying coating composition containing unsaturated melamine condensate and an article coated therewith |