GB1137542A – Production of polyamides
– Google Patents
GB1137542A – Production of polyamides
– Google Patents
Production of polyamides
Info
Publication number
GB1137542A
GB1137542A
GB14496/66A
GB1449666A
GB1137542A
GB 1137542 A
GB1137542 A
GB 1137542A
GB 14496/66 A
GB14496/66 A
GB 14496/66A
GB 1449666 A
GB1449666 A
GB 1449666A
GB 1137542 A
GB1137542 A
GB 1137542A
Authority
GB
United Kingdom
Prior art keywords
carbon atoms
aromatic
prepolymer
tin
heating
Prior art date
1965-04-05
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
GB14496/66A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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.)
1965-04-05
Filing date
1966-04-01
Publication date
1968-12-27
1966-04-01
Application filed by Eastman Kodak Co
filed
Critical
Eastman Kodak Co
1968-12-27
Publication of GB1137542A
publication
Critical
patent/GB1137542A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
C08G69/32—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
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
C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
C08G69/04—Preparatory processes
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
C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
Abstract
1,137,542. Polyamides. EASTMAN KODAK CO. 1 April, 1966 [5 April, 1965], No. 14496/66 Heading C3R Linear polyamides having an inherent viscosity of at least 0À6 are prepared by heating together, at 200-350‹ C. in an inert atmosphere mixtures selected from dicarboxylic acids, aromatic diamines and aromatic amino acids in the presence of 0À005 to 2% by wt. of the reaction mixture of an organotin compound. Substantially equivalent amounts of carboxylic acid and amino groups are preferably used. The aromatic diamine may have at least 3 carbon atoms between the amine groups (e.g. 4,41 – methylenedianiline, 2,4 – toluenediamine). The diacarboxylic acids may contain 6 to 20 carbon atoms, aliphatic dicarboxylic acids may contain at least 4 carbon atoms between carboxyl groups and aromatic or alicyclic dicarboxylic acids, 3 carbon atoms between the carboxyl groups. In preferred embodiments, salts obtained by mixing substantially equivalent amounts of dicarboxylic acid and aromatic diamine are heated in a purged sealed vessel at 200-300‹ C. for 30 to 90 mins. to form a prepolymer. The M.W. of the latter is increased by either stirring a melt at 200-350‹ C. for ¢ to 3 hours in vacuo or by granulating the prepolymer to a particle size of 0À03 in. or smaller and heating in vacuo at a temp. below the m.p. of the prepolymer. Polymers may also be prepared by heating an amino acid alone. The tin compounds used may be di- or tetravalent, the valencies being satisfied by alkyl, aryl or electronegative radicals. Examples are dibutyl tin oxide, dibutyldiphenyl tin, dibutyl tin diacetate, tin octoate or stannous oxalate.
GB14496/66A
1965-04-05
1966-04-01
Production of polyamides
Expired
GB1137542A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US445736A
US3408334A
(en)
1965-04-05
1965-04-05
Preparation of polyamides from aromatic amino compounds
Publications (1)
Publication Number
Publication Date
GB1137542A
true
GB1137542A
(en)
1968-12-27
Family
ID=23770007
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB14496/66A
Expired
GB1137542A
(en)
1965-04-05
1966-04-01
Production of polyamides
Country Status (2)
Country
Link
US
(1)
US3408334A
(en)
GB
(1)
GB1137542A
(en)
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1720606A1
(en)
*
1967-01-19
1971-06-24
Bayer Ag
Process for the production of high molecular weight polyamides
US4072665A
(en)
*
1976-03-08
1978-02-07
The Upjohn Company
Polyamide from arylene diamine, isophthalic acid and alkylene dicarboxylic acid
US4412059A
(en)
*
1980-08-20
1983-10-25
Duke University
High modulus cholesteric mesophase polymers
US4536533A
(en)
*
1983-12-05
1985-08-20
The Upjohn Company
Product
GB8405049D0
(en)
*
1984-02-27
1984-04-04
Raychem Ltd
Organic polymers
GB8521324D0
(en)
*
1985-08-27
1985-10-02
Raychem Ltd
Preparation of monomers
GB8521325D0
(en)
*
1985-08-27
1985-10-02
Raychem Ltd
Preparation of side-chain polymers
US4895928A
(en)
*
1986-09-08
1990-01-23
Amoco Corporation
Melt-processable polymeric materials based on 5-t-butylisophthalic
US4728548A
(en)
*
1987-02-09
1988-03-01
Eastman Kodak Company
Polyamide compositions
US4910282A
(en)
*
1988-08-15
1990-03-20
The United States Of America As Represented By The Secretary Of The Air Force
Low glass transition temperature aromatic polyamide
US4939270A
(en)
*
1989-02-23
1990-07-03
Shell Oil Company
Spirodilactam diamines
US5034504A
(en)
*
1988-09-16
1991-07-23
Shell Oil Company
Spirodilactam polyamide polymer
US4968770A
(en)
*
1988-09-16
1990-11-06
Shell Oil Company
Polyamide from spirodilactam precursor and primary diamine
US4968812A
(en)
*
1989-06-23
1990-11-06
Shell Oil Company
Spirolactonelactams
US5093465A
(en)
*
1990-06-29
1992-03-03
Shell Oil Company
Polyamide containing spirodilactam moieties
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2244192A
(en)
*
1939-09-08
1941-06-03
Du Pont
Preparation of polyamides
US3189575A
(en)
*
1959-05-04
1965-06-15
Union Carbide Corp
Polyamides stabilized with organo-tin compounds
US3067168A
(en)
*
1960-05-13
1962-12-04
Du Pont
Synthetic polyamides stabilized with thermally stable ionic tin salts
1965
1965-04-05
US
US445736A
patent/US3408334A/en
not_active
Expired – Lifetime
1966
1966-04-01
GB
GB14496/66A
patent/GB1137542A/en
not_active
Expired
Also Published As
Publication number
Publication date
US3408334A
(en)
1968-10-29
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Magnetic recording element
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