GB738010A - Curing elastomeric diisocyanate modified polyesters and polyesteramides - Google Patents
Curing elastomeric diisocyanate modified polyesters and polyesteramidesInfo
- Publication number
- GB738010A GB738010A GB25488/52A GB2548852A GB738010A GB 738010 A GB738010 A GB 738010A GB 25488/52 A GB25488/52 A GB 25488/52A GB 2548852 A GB2548852 A GB 2548852A GB 738010 A GB738010 A GB 738010A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyesteramide
- specifications
- polyester
- polyesteramides
- diisocyanate modified
- 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
- C08G18/60—Polyamides or polyester-amides
- C08G18/606—Polyester-amides
-
- 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
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
An elastomeric diisocyanate modified linear polyester or polyesteramide of the type described in Specifications 694,978, 694,982, 696,449 or 696,450 is cured by reacting it with a polyisocyanate in presence of magnesium oxide whereby the amount of polyisocyanate required to effect a satisfactory cure is reduced. When curing the elastomers of Specifications 694,978 or 694,982 the total isocyanate equivalents used (including that employed in preparing the modified polyester or polyesteramide) is from 2.40-2.80 equivalents per mol. of unmodified polyester or polyesteramide. When curing the elastomers of Specifications 696,449 and 696,450 the total isocyanate equivalents used is 2.40-2.80 equivalents per mol. of unmodified polyester or polyesteramide plus twice the molar amount of bifunctional additive used in the preparation of the elastomeric diisocyanate modified polyester or polyesteramide. In examples elastomeric diisocyanate modified polyesters and polyesteramides of the type described in the said Specifications were milled with 4,41-diphenyl diisocyanate and magnesium oxide and test sheets were press cured at 280 DEG F. for 5 minutes. Specification 716,071 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US738010XA | 1951-12-27 | 1951-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB738010A true GB738010A (en) | 1955-10-05 |
Family
ID=22115877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25488/52A Expired GB738010A (en) | 1951-12-27 | 1952-10-10 | Curing elastomeric diisocyanate modified polyesters and polyesteramides |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE512058A (en) |
FR (1) | FR1059074A (en) |
GB (1) | GB738010A (en) |
LU (1) | LU31520A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1121805B (en) * | 1956-11-20 | 1962-01-11 | Goodyear Tire & Rubber | Process for the production of thermoplastic rubber-like polyester, polyester amide or polyether urethanes |
-
0
- BE BE512058D patent/BE512058A/xx unknown
- LU LU31520D patent/LU31520A1/xx unknown
-
1952
- 1952-04-21 FR FR1059074D patent/FR1059074A/en not_active Expired
- 1952-10-10 GB GB25488/52A patent/GB738010A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1121805B (en) * | 1956-11-20 | 1962-01-11 | Goodyear Tire & Rubber | Process for the production of thermoplastic rubber-like polyester, polyester amide or polyether urethanes |
Also Published As
Publication number | Publication date |
---|---|
LU31520A1 (en) | |
BE512058A (en) | |
FR1059074A (en) | 1954-03-22 |
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