GB1141094A - Polyurethanes - Google Patents
PolyurethanesInfo
- Publication number
- GB1141094A GB1141094A GB2787066A GB2787066A GB1141094A GB 1141094 A GB1141094 A GB 1141094A GB 2787066 A GB2787066 A GB 2787066A GB 2787066 A GB2787066 A GB 2787066A GB 1141094 A GB1141094 A GB 1141094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyhydroxy compound
- polyurethanes
- aug
- reacting
- organic
- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/20—Heterocyclic amines; Salts thereof
- C08G18/2045—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings
- C08G18/2063—Heterocyclic amines; Salts thereof containing condensed heterocyclic rings having two nitrogen atoms in the condensed ring system
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
1,141,094. Polyurethanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Aug., 1966 [11 Aug., 1965], No. 27870/66. Divided out of 1,109,840. Headings C3C and C3R. Polyurethanes are prepared by reacting an organic polyisocyanate with an organic polyhydroxy compound in the presence of a tertiary amine of formula in which one or more of the ring carbon atoms may optionally be substituted by a C 1- C 4 alkyl radical. The catalyst which may be used at between 0À01 and 5% based on the wt. of polyhydroxy compound may be perhydrodipyrido - [1,2 - a : 2<SP>1</SP>,1<SP>1</SP> - c] - pyrazine. Foams may be obtained by including water or a lowboiling ( < 75‹ C.) organic liquid in the reaction mixture. The polyhydroxy compound may be one containing predominantly secondary hydroxyl groups. The tertiary amine of the invention may be used in conjunction with other catalysts, e.g. stannous octoate, dibutyl tin dilaurate or lead octoate. The catalyst may be used in the form of a quaternary ammonium salt by reacting with one molar proportion of a compound RX where R is an alkyl, cycloalkyl or aralkyl radical and X is an atom or group capable of ionizing to form the anion of a quaternary ammonium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2787066A GB1141094A (en) | 1965-08-11 | 1965-08-11 | Polyurethanes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2787066A GB1141094A (en) | 1965-08-11 | 1965-08-11 | Polyurethanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1141094A true GB1141094A (en) | 1969-01-22 |
Family
ID=10266628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2787066A Expired GB1141094A (en) | 1965-08-11 | 1965-08-11 | Polyurethanes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1141094A (en) |
-
1965
- 1965-08-11 GB GB2787066A patent/GB1141094A/en not_active Expired
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