GB1031017A - Polyurethane plastics - Google Patents
Polyurethane plasticsInfo
- Publication number
- GB1031017A GB1031017A GB30749/63A GB3074963A GB1031017A GB 1031017 A GB1031017 A GB 1031017A GB 30749/63 A GB30749/63 A GB 30749/63A GB 3074963 A GB3074963 A GB 3074963A GB 1031017 A GB1031017 A GB 1031017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycol
- mixture
- nco
- ratio
- polyalkylene
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/487—Polyethers containing cyclic groups
- C08G18/4879—Polyethers containing cyclic groups containing aromatic groups
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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)
Abstract
A process for the production of polyurethanes comprises reacting an organic diisocyanate with a polymeric glycol of M.W. at least 600, said reactants being present in such amounts that the -NCO to -OH ratio is from 1.5 to 3.5 so as to form an -NCO terminated prepolymer, this prepolymer then being reacted with a chain extending agent comprising a mixture of any isomer of tolylene diamine and a glycol, said tolylene diamine and said glycol being present in the mixture in a molar ratio of from 0.66 to 19, said mixture being present in such an amount that the overall-NCO to active hydrogen atom ratio is from 0.7 to 1.3. The polymeric glycol may be a polyalkylene glycol, polyalkylene arylene ether glycol or polyalkylene thioether glycol. Many organic diisocyanates are specified including aliphatic, cycloaliphatic and aromatic diisocyanates. The glycol chain extender may be butane diol, pentane diol, hexane diol thiodiglycol, diethylene glycol, tripropylene glycol, p-phenylene di-(BETA-hydroxy ethyl ether). In a typical Example (1) tolylene diisocyanate was reacted with polypropylene glycol in amount to provide an -NCO to -OH ratio of 2.2. To the prepolymer a mixture of tolylene diamine and triethylene glycol was added.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21526862A | 1962-08-07 | 1962-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1031017A true GB1031017A (en) | 1966-05-25 |
Family
ID=22802310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30749/63A Expired GB1031017A (en) | 1962-08-07 | 1963-08-02 | Polyurethane plastics |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE635816A (en) |
DE (1) | DE1220131B (en) |
FR (1) | FR1373740A (en) |
GB (1) | GB1031017A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2495166A1 (en) * | 1980-08-27 | 1982-06-04 | Upjohn Co | POLYURETHANE POLYMERS AND THEIR PREPARATION |
GB2223025A (en) * | 1988-09-27 | 1990-03-28 | Shengcai Zhao | Polyurethane plug and method of making the same |
-
0
- BE BE635816D patent/BE635816A/xx unknown
-
1963
- 1963-07-22 DE DEM57582A patent/DE1220131B/en active Pending
- 1963-08-02 GB GB30749/63A patent/GB1031017A/en not_active Expired
- 1963-08-06 FR FR943842A patent/FR1373740A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2495166A1 (en) * | 1980-08-27 | 1982-06-04 | Upjohn Co | POLYURETHANE POLYMERS AND THEIR PREPARATION |
GB2223025A (en) * | 1988-09-27 | 1990-03-28 | Shengcai Zhao | Polyurethane plug and method of making the same |
GB2223025B (en) * | 1988-09-27 | 1992-02-12 | Shengcai Zhao | Polyurethane plug and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
BE635816A (en) | |
FR1373740A (en) | 1964-10-02 |
DE1220131B (en) | 1966-06-30 |
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