GB1506848A - Stabilised ester group-containing compositions - Google Patents
Stabilised ester group-containing compositionsInfo
- Publication number
- GB1506848A GB1506848A GB3332674A GB3332674A GB1506848A GB 1506848 A GB1506848 A GB 1506848A GB 3332674 A GB3332674 A GB 3332674A GB 3332674 A GB3332674 A GB 3332674A GB 1506848 A GB1506848 A GB 1506848A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reacting
- formula
- isourea
- carbodiimide
- optionally substituted
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1506848 Isourea derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 16 June 1975 [29 July 1974] 33326/74 Heading C2C [Also in Division C3] An isourea or an isocyanate adduct thereof, e.g. of the formula R<SP>1</SP>-N(T)-C(OR<SP>3</SP>) =N-R<SP>2</SP>, wherein T represents hydrogen or a group of the formula R<SP>4</SP>NHCO and R<SP>1</SP>-R<SP>4</SP> each represents an optionally substituted hydrocarbyl radical, e.g. alkyl, cycloalkyl or aryl, may be prepared either by reacting a carbodiimide of the formula R<SP>1</SP>-N=C=N-R<SP>2</SP> with a compound of the formula R<SP>3</SP>OH and optionally reacting the product with an isocyanate of the formula R<SP>4</SP>NCO; or by phosgenating the corresponding (thio)urea and reacting the resulting chloroformamidine and/or carbonyl chloride with a metal alkoxide. Preferably R<SP>1</SP>, R<SP>2</SP> and R<SP>4</SP> are optionally substituted aryl radicals and R<SP>3</SP> is a C 1-4 alkyl radical optionally substituted with halogen, hydroxy, mercapto and amino groups, or an aryl radical optionally substituted with one or more electron withdrawing groups, e.g. NO 2 , CN, carboalkoxy, halogen and CF 3 . The compound may contain more than 1 isourea residue per molecule, e.g. R 3 may be a radical of the formula where X is an aliphatic residue and n is 1-7. In Examples 1 and 2 isoureas are prepared by reacting di-p-tolylcarbodiimide with either pnitrophenol, methanol or n- or t-butanol. In Examples 3-5 isoureas and isocyanate adducts of isoureas are prepared either (1) by first preparing 1,3-di-p-tolyl-2-methylisourea by heating p-tolyl isocyanate in the presence of 1 - phenyl - 3 - methylphospholene oxide and reacting the resulting carbodiimide with anhydrous CH 3 OH in the presence of Na; and reacting the resulting isourea with 4,4<SP>1</SP>-diisocyanatodiphenylmethane; or (2) by first reacting tolylene diisocyanate with either, methanol, benzyl alcohol, cyclohexanol or lauryl alcohol, then converting the NCO residues to carbodiimide groups using 1-phenyl-3-methylphospholene oxide, followed by reaction with anhydrous methanol in the presence of Na; or (3) by reacting bis-(3-isocyanato-4-methylphenyl)carbodiimide with anhydrous methanol and then adding Na and reacting the resulting isourea with 80/20 2,4-/2,6-tolylene diisocyanate.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3332674A GB1506848A (en) | 1974-07-29 | 1974-07-29 | Stabilised ester group-containing compositions |
US05/588,946 US4069198A (en) | 1974-07-29 | 1975-06-20 | Polyesters and polyester-urethanes stabilized with isoureas or isocyanate adducts thereof |
IT24763/75A IT1039479B (en) | 1974-07-29 | 1975-06-25 | COMPOSITIONS OF MATERIALS |
DE19752528589 DE2528589A1 (en) | 1974-07-29 | 1975-06-26 | COMPOSITIONS OF SUBSTANCE, IN PARTICULAR THOSE IN WHICH ESTERS ARE STABILIZED BY HYDROLYSIS |
JP50092464A JPS5144576A (en) | 1974-07-29 | 1975-07-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3332674A GB1506848A (en) | 1974-07-29 | 1974-07-29 | Stabilised ester group-containing compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1506848A true GB1506848A (en) | 1978-04-12 |
Family
ID=10351497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3332674A Expired GB1506848A (en) | 1974-07-29 | 1974-07-29 | Stabilised ester group-containing compositions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1506848A (en) |
-
1974
- 1974-07-29 GB GB3332674A patent/GB1506848A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |