GB776979A - Synthetic rubber-like materials prepared from polyesters or polyesteramides, and polyisocyanates - Google Patents
Synthetic rubber-like materials prepared from polyesters or polyesteramides, and polyisocyanatesInfo
- Publication number
- GB776979A GB776979A GB1914954A GB1914954A GB776979A GB 776979 A GB776979 A GB 776979A GB 1914954 A GB1914954 A GB 1914954A GB 1914954 A GB1914954 A GB 1914954A GB 776979 A GB776979 A GB 776979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- minutes
- acid
- product
- dihydroxy
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/675—Low-molecular-weight compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Polymethane rubbers are made by reacting an hydroxy terminated polyester with an excess of a polyisocyanate and with an unsaturated difunctional compound reactive with isocyanates and cross-linking the product by means of the unsaturated links by heating in the presence e.g. of sulphur, benzoyl peroxide quinone dioxime or other compounds known for vulcanizing natural rubber and similar synthetic rubbers. Curing accelerators may be present and also fillers and plasticizers. The proportions of the reactants are such that the uncured product attains a maximum Williams plasticity number between 200 and 550 on heating. In examples: (1) a copolyester from adipic acid, ethylene glycol and propylene glycol, 500 parts, is reacted with 10 parts 1.4 dihydroxy 2-butene and 64 parts hexamethylene di-isocyanate for 5 minutes at 100-110 DEG C. and 8 hours at 130 DEG C. 100 parts of the product were worked on a two roll mill at 70 DEG C. with 2 parts quinone dioxime and moulded for 10 minutes at 150 DEG C. (2) As in (1) but compounding 100 parts of the raw rubber with 5 parts zinc oxide, 2 parts sulphur, 1 part tetramethylthiuram disulphide and 0.5 parts mercaptobenzthiazole and curing for 5 minutes at 150 DEG C. (3) As in (1) but compounding with 2 parts benzoyl peroxide and curing for 5 minutes at 150 DEG C. (4) 100 parts of a glycol adipic acid polyester of hydroxyl number 45 and acid number 1.2 are reacted with 1.93 parts of 1.4 dihydroxy 2-butene and 12.3 parts naphthalene 1.5 di-isocyanate at 120 DEG C. for 10 minutes, 100 parts of the product are compounded with 2 parts benzoyl peroxide and cured at 153 DEG C. for 20 minutes. Figures are given for certain physical properties of the cured products of the examples. Other unsaturated difunctional compounds referred to are 1.2-dihydroxy 3-butene, 1.6-diamino - 3 - hexene, 1 - amino - 2 - hydroxy - 5-hexene, maleic acid, fumaric acid and dihydromuconic acid. Specifications 573,811, 574,134 and 579,857, [all in Group IV], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914954A GB776979A (en) | 1954-06-30 | 1954-06-30 | Synthetic rubber-like materials prepared from polyesters or polyesteramides, and polyisocyanates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914954A GB776979A (en) | 1954-06-30 | 1954-06-30 | Synthetic rubber-like materials prepared from polyesters or polyesteramides, and polyisocyanates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB776979A true GB776979A (en) | 1957-06-12 |
Family
ID=10124568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1914954A Expired GB776979A (en) | 1954-06-30 | 1954-06-30 | Synthetic rubber-like materials prepared from polyesters or polyesteramides, and polyisocyanates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB776979A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1063374B (en) * | 1957-11-09 | 1959-08-13 | Bayer Ag | Process for the production of high molecular weight crosslinked plastics |
| DE1076359B (en) * | 1958-08-12 | 1960-02-25 | Bayer Ag | Process for the production of rubber-elastic plastics |
| DE1100945B (en) * | 1957-10-24 | 1961-03-02 | Gen Tire & Rubber Co | Process for the production of elastomeric polyurethanes |
| US3036042A (en) * | 1957-04-09 | 1962-05-22 | Bayer Ag | Preparation of polyurethanes |
| US3043807A (en) * | 1958-01-27 | 1962-07-10 | Goodyear Tire & Rubber | Polyurethane elastomers |
| DE1151116B (en) * | 1961-07-24 | 1963-07-04 | Phoenix Gummiwerke Ag | Process for producing molded parts from molding compositions which contain polyester and a urethane |
| EP0481319A2 (en) * | 1990-10-19 | 1992-04-22 | Bayer Ag | Two component polyurethane adhesives |
| EP1109750A1 (en) * | 1998-08-31 | 2001-06-27 | Nalco Chemical Company | Process for the inhibition of scale in harsh systems and novel antiscalants for same |
-
1954
- 1954-06-30 GB GB1914954A patent/GB776979A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3036042A (en) * | 1957-04-09 | 1962-05-22 | Bayer Ag | Preparation of polyurethanes |
| DE1100945B (en) * | 1957-10-24 | 1961-03-02 | Gen Tire & Rubber Co | Process for the production of elastomeric polyurethanes |
| DE1063374B (en) * | 1957-11-09 | 1959-08-13 | Bayer Ag | Process for the production of high molecular weight crosslinked plastics |
| US3043807A (en) * | 1958-01-27 | 1962-07-10 | Goodyear Tire & Rubber | Polyurethane elastomers |
| DE1076359B (en) * | 1958-08-12 | 1960-02-25 | Bayer Ag | Process for the production of rubber-elastic plastics |
| DE1151116B (en) * | 1961-07-24 | 1963-07-04 | Phoenix Gummiwerke Ag | Process for producing molded parts from molding compositions which contain polyester and a urethane |
| EP0481319A2 (en) * | 1990-10-19 | 1992-04-22 | Bayer Ag | Two component polyurethane adhesives |
| EP0481319A3 (en) * | 1990-10-19 | 1992-09-30 | Bayer Ag | Two component polyurethane adhesives |
| US5349040A (en) * | 1990-10-19 | 1994-09-20 | Bayer Aktiengesellschaft | Two-component polyurethane adhesives |
| EP1109750A1 (en) * | 1998-08-31 | 2001-06-27 | Nalco Chemical Company | Process for the inhibition of scale in harsh systems and novel antiscalants for same |
| EP1109750A4 (en) * | 1998-08-31 | 2001-12-05 | Nalco Chemical Co | Process for the inhibition of scale in harsh systems and novel antiscalants for same |
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