GB1025970A - Improvements in and relating to polyurethane elastomers - Google Patents
Improvements in and relating to polyurethane elastomersInfo
- Publication number
- GB1025970A GB1025970A GB2943864A GB2943864A GB1025970A GB 1025970 A GB1025970 A GB 1025970A GB 2943864 A GB2943864 A GB 2943864A GB 2943864 A GB2943864 A GB 2943864A GB 1025970 A GB1025970 A GB 1025970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene glycol
- polyester
- mols
- acid number
- diphenyl diisocyanate
- 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
- 229920003225 polyurethane elastomer Polymers 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 11
- 229920000728 polyester Polymers 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 235000010290 biphenyl Nutrition 0.000 abstract 2
- 239000004305 biphenyl Substances 0.000 abstract 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 abstract 2
- AXKZIDYFAMKWSA-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione Chemical compound O=C1CCCCC(=O)OCCCCO1 AXKZIDYFAMKWSA-UHFFFAOYSA-N 0.000 abstract 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical group OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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 polyesterurethane elastomer having a permanent set not greater than 30%, comprises the reaction product of (A) one mol. of an essentially linear hydroxyl terminated polyester of a saturated aliphatic glycol having 4-10 C and the hydroxyl groups on its terminal carbon atoms and a dicarboxylic acid of formula <FORM:1025970/C3/1> where R is an alkylene radical containing 2-8 C or an anhydride thereof, the polyester having an average M.W. of 600-1200 and an acid number not greater than 7, and (B) from 1.5 to 3.0 mols. of a diphenyl diisocyanate having an -NCO group on each phenyl nucleus and (C) from 0.5-2.0 mols. of ethylene glycol the molar amount of said polyester and ethylene glycol being essentially equivalent to the molar amount of said diphenyl diisocyanate. The process may be performed under anhydrous conditions by mixing reactants (A), (B) and (C) at elevated temperature to form a homogeneous melt, and polymerizing the melt at 140-235 DEG C. for 3 minutes to 1 hour. In a typical Example (1) a mixture of poly (tetramethylene adipate) of MW 1030 and acid number 2.9 and ethylene glycol, the molar ratio being 1:1 was reacted with 2 moles of diphenylmethane-p,p1-diiso-cyanate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29493363A | 1963-07-15 | 1963-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1025970A true GB1025970A (en) | 1966-04-14 |
Family
ID=23135542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2943864A Expired GB1025970A (en) | 1963-07-15 | 1964-07-14 | Improvements in and relating to polyurethane elastomers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1025970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256795A (en) | 1974-11-05 | 1981-03-17 | Polymark Corporation | Heat transfers |
| US4320170A (en) | 1980-12-08 | 1982-03-16 | International Business Machines Corporation | Polyurethane ribbon for non-impact printing |
-
1964
- 1964-07-14 GB GB2943864A patent/GB1025970A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256795A (en) | 1974-11-05 | 1981-03-17 | Polymark Corporation | Heat transfers |
| US4320170A (en) | 1980-12-08 | 1982-03-16 | International Business Machines Corporation | Polyurethane ribbon for non-impact printing |
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