GB1102521A – N-acyl caprolactams
– Google Patents
GB1102521A – N-acyl caprolactams
– Google Patents
N-acyl caprolactams
Info
Publication number
GB1102521A
GB1102521A
GB48653/64A
GB4865364A
GB1102521A
GB 1102521 A
GB1102521 A
GB 1102521A
GB 48653/64 A
GB48653/64 A
GB 48653/64A
GB 4865364 A
GB4865364 A
GB 4865364A
GB 1102521 A
GB1102521 A
GB 1102521A
Authority
GB
United Kingdom
Prior art keywords
caprolactam
acid
caprolactams
acyl
polyacyl
Prior art date
1963-12-10
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
Application number
GB48653/64A
Inventor
Kenneth Darling Grice
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Acordis UK Ltd
Original Assignee
British Celanese Ltd
Priority date (The priority date 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 date listed.)
1963-12-10
Filing date
1963-12-10
Publication date
1968-02-07
1963-12-10
Application filed by British Celanese Ltd
filed
Critical
British Celanese Ltd
1968-02-07
Publication of GB1102521A
publication
Critical
patent/GB1102521A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07D—HETEROCYCLIC COMPOUNDS
C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
C07D201/02—Preparation of lactams
C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
Abstract
Caprolactam polymerization may be initiated by N-acyl; N,N1-diacyl or polyacyl caprolactams, e.g. sebacoyl bis-caprolactam containing small proportions of the acetyl caprolactam and sebacic acid used in its preparation.ALSO:N-Acyl, N,N1-diacyl and higher polyacyl caprolactams are prepared by reacting a mono-, di- or higher carboxylic acid with acetyl caprolactam. The acetic acid by-product may be distilled off under pressure or as an azeotrope with an inert solvent, e.g. xylene. Excess acetyl caprolactam is preferably used. An acidic catalyst, e.g. p-toluene sulphonic acid, may be present. Examples describe the preparation of sebacoyl bis-caprolactam. Other acids mentioned are terephthalic acid, adipic acid and stearic acid.
GB48653/64A
1963-12-10
1963-12-10
N-acyl caprolactams
Expired
GB1102521A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4865363
1963-12-10
Publications (1)
Publication Number
Publication Date
GB1102521A
true
GB1102521A
(en)
1968-02-07
Family
ID=10449413
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB48653/64A
Expired
GB1102521A
(en)
1963-12-10
1963-12-10
N-acyl caprolactams
Country Status (1)
Country
Link
GB
(1)
GB1102521A
(en)
Cited By (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4608201A
(en)
*
1984-05-21
1986-08-26
Ppg Industries, Inc.
Process for preparing lactam imides
US4879275A
(en)
*
1987-09-30
1989-11-07
Nelson Research & Development Co.
Penetration enhancers for transdermal delivery of systemic agent
US4886783A
(en)
*
1986-01-31
1989-12-12
Nelson Research & Development Co.
Penetration enhancers for transdermal delivery of systemic agents
US4920101A
(en)
*
1987-09-30
1990-04-24
Nelson Research & Development Co.
Compositions comprising 1-oxo- or thiohydrocarbyl substituted azacycloaklkanes
US5034386A
(en)
*
1986-01-31
1991-07-23
Whitby Research, Inc.
Methods for administration using 1-substituted azacycloalkanes
US5204339A
(en)
*
1986-01-31
1993-04-20
Whitby Research, Inc.
Penetration enhancers for transdermal delivery of systemic agents
WO1995023788A1
(en)
*
1994-03-01
1995-09-08
The Procter & Gamble Company
Improved process for the acylation of lactams
NL1017667C2
(en)
*
2001-03-22
2002-09-24
Dsm Nv
Production of an activated acid used in heat-curable compositions comprises reacting a carbonyl bis-lactamate with an acid of specified molecular weight
CN111671704A
(en)
*
2020-06-27
2020-09-18
张彩菊
Cosmetic composition, cosmetic and preparation method thereof
CN115054530A
(en)
*
2022-07-26
2022-09-16
广东微研生物科技有限公司
Skin care composition with moisturizing and anti-aging effects and preparation method thereof
1963
1963-12-10
GB
GB48653/64A
patent/GB1102521A/en
not_active
Expired
Cited By (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4608201A
(en)
*
1984-05-21
1986-08-26
Ppg Industries, Inc.
Process for preparing lactam imides
US4886783A
(en)
*
1986-01-31
1989-12-12
Nelson Research & Development Co.
Penetration enhancers for transdermal delivery of systemic agents
US5034386A
(en)
*
1986-01-31
1991-07-23
Whitby Research, Inc.
Methods for administration using 1-substituted azacycloalkanes
US5204339A
(en)
*
1986-01-31
1993-04-20
Whitby Research, Inc.
Penetration enhancers for transdermal delivery of systemic agents
US4879275A
(en)
*
1987-09-30
1989-11-07
Nelson Research & Development Co.
Penetration enhancers for transdermal delivery of systemic agent
US4920101A
(en)
*
1987-09-30
1990-04-24
Nelson Research & Development Co.
Compositions comprising 1-oxo- or thiohydrocarbyl substituted azacycloaklkanes
WO1995023788A1
(en)
*
1994-03-01
1995-09-08
The Procter & Gamble Company
Improved process for the acylation of lactams
US5510477A
(en)
*
1994-03-01
1996-04-23
The Procter & Gamble Company
Process for the acylation of lactams
NL1017667C2
(en)
*
2001-03-22
2002-09-24
Dsm Nv
Production of an activated acid used in heat-curable compositions comprises reacting a carbonyl bis-lactamate with an acid of specified molecular weight
CN111671704A
(en)
*
2020-06-27
2020-09-18
张彩菊
Cosmetic composition, cosmetic and preparation method thereof
CN115054530A
(en)
*
2022-07-26
2022-09-16
广东微研生物科技有限公司
Skin care composition with moisturizing and anti-aging effects and preparation method thereof
CN115054530B
(en)
*
2022-07-26
2023-02-10
广东微研生物科技有限公司
Skin care composition with moisturizing and anti-aging effects and preparation method thereof
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