GB1172997A - Monomeric Compounds from Polyamides - Google Patents

Monomeric Compounds from Polyamides

Info

Publication number
GB1172997A
GB1172997A GB33065/66A GB3306566A GB1172997A GB 1172997 A GB1172997 A GB 1172997A GB 33065/66 A GB33065/66 A GB 33065/66A GB 3306566 A GB3306566 A GB 3306566A GB 1172997 A GB1172997 A GB 1172997A
Authority
GB
United Kingdom
Prior art keywords
polyamides
hexamethyleneimine
polyamide
monomeric compounds
hexamethylene
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
Application number
GB33065/66A
Inventor
Arthur Lambert
George Henry Lang
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB33065/66A priority Critical patent/GB1172997A/en
Priority to DE19671695282 priority patent/DE1695282A1/en
Priority to NL6709663A priority patent/NL6709663A/xx
Priority to FR115282A priority patent/FR1532777A/en
Publication of GB1172997A publication Critical patent/GB1172997A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/027—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

1,172,997. Monomeric compounds from polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 May, 1967 [22 July, 1966], No. 33065/66. Heading C2C. A process for converting polyamides into monomeric compounds containing nitrogen comprises heating the polyamide with ammonia in the presence of hydrogen and a hydrogenation catalyst, the quantity of ammonia employed being at least n moles per mole of polyamide where n is the average number of amide groups in each molecule of polyamide. Examples describe the production of hexamethyleneimine and hexamethylene-1,6-diamine from polyhexamethylene adipamide (nylon 66 polymer) and hexamethyleneimine, hexamethylene-1,6- diamine and N-(6-aminohexyl)-hexamethyleneimine from polycaprolactam (nylon 6 polymer).
GB33065/66A 1966-07-22 1966-07-22 Monomeric Compounds from Polyamides Expired GB1172997A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB33065/66A GB1172997A (en) 1966-07-22 1966-07-22 Monomeric Compounds from Polyamides
DE19671695282 DE1695282A1 (en) 1966-07-22 1967-07-04 Process for converting polyamides into nitrogen-containing monomeric compounds
NL6709663A NL6709663A (en) 1966-07-22 1967-07-12
FR115282A FR1532777A (en) 1966-07-22 1967-07-21 Process for converting polyamides into nitrogenous monomer compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33065/66A GB1172997A (en) 1966-07-22 1966-07-22 Monomeric Compounds from Polyamides

Publications (1)

Publication Number Publication Date
GB1172997A true GB1172997A (en) 1969-12-03

Family

ID=49196241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33065/66A Expired GB1172997A (en) 1966-07-22 1966-07-22 Monomeric Compounds from Polyamides

Country Status (3)

Country Link
DE (1) DE1695282A1 (en)
GB (1) GB1172997A (en)
NL (1) NL6709663A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302756A (en) * 1992-12-23 1994-04-12 E. I. Du Pont De Nemours And Company Ammonolysis of nylon
US5395974A (en) * 1994-01-21 1995-03-07 E. I. Du Pont De Nemours And Company Lewis acid catalyzed ammonolysis of nylon
US5532404A (en) * 1994-05-27 1996-07-02 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
US5556890A (en) * 1993-06-04 1996-09-17 Dsm N.V. Reclaiming ε-caprolactam from carpet waste
US5710315A (en) * 1994-05-27 1998-01-20 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
WO2022078997A1 (en) * 2020-10-13 2022-04-21 Basf Se Value chain return process for spent polyamides by hydrogenation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19942338A1 (en) * 1999-09-06 2001-03-08 Basf Ag Process for the cleavage of polymers and oligomers containing amide groups

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302756A (en) * 1992-12-23 1994-04-12 E. I. Du Pont De Nemours And Company Ammonolysis of nylon
WO1994014752A1 (en) * 1992-12-23 1994-07-07 E.I. Du Pont De Nemours And Company Ammonolysis of nylon
AU672083B2 (en) * 1992-12-23 1996-09-19 E.I. Du Pont De Nemours And Company Ammonolysis of nylon
US5556890A (en) * 1993-06-04 1996-09-17 Dsm N.V. Reclaiming ε-caprolactam from carpet waste
US5395974A (en) * 1994-01-21 1995-03-07 E. I. Du Pont De Nemours And Company Lewis acid catalyzed ammonolysis of nylon
WO1995019950A1 (en) * 1994-01-21 1995-07-27 E.I. Du Pont De Nemours And Company Lewis acid catalyzed ammonolysis of nylon
US5532404A (en) * 1994-05-27 1996-07-02 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
US5710315A (en) * 1994-05-27 1998-01-20 E. I. Du Pont De Nemours And Company Monomer recovery process for contaminated polymers
WO2022078997A1 (en) * 2020-10-13 2022-04-21 Basf Se Value chain return process for spent polyamides by hydrogenation

Also Published As

Publication number Publication date
DE1695282A1 (en) 1971-03-18
NL6709663A (en) 1968-01-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees