GB562370A - Improvements in or relating to the production of polyamides - Google Patents

Improvements in or relating to the production of polyamides

Info

Publication number
GB562370A
GB562370A GB574942A GB574942A GB562370A GB 562370 A GB562370 A GB 562370A GB 574942 A GB574942 A GB 574942A GB 574942 A GB574942 A GB 574942A GB 562370 A GB562370 A GB 562370A
Authority
GB
United Kingdom
Prior art keywords
adipamide
water
polyamides
polytriglycol
heating
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
GB574942A
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 GB574942A priority Critical patent/GB562370A/en
Publication of GB562370A publication Critical patent/GB562370A/en
Expired legal-status Critical Current

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
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/40—Polyamides containing oxygen in the form of ether groups
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Abstract

Polyamides having enhanced water absorption properties and increased elasticity, are prepared by heating in the molten state, at amide-forming temperatures, a mixture of at least two pre-formed synthetic linear polyamides, at least one being soluble in water, and at least one being insoluble in water, heating being continued until a homogeneous blend is obtained. The blend usually contains 5-80 per cent by weight of the water-soluble component, and temperatures of 180 DEG C.-320 DEG C. are used. Heating is preferably continued until a product is obtained from which, on solidification, not more than 10 per cent of the soluble component can be selectively extracted by prolonged solvent treatment. Many starting polyamides are specified, and examples are given of the preparation of melt blends from: (1) polyhexamethylene adipamide and polytriglycol adipamide; (2) polyhexamethylene adipamide and N-methyl polytriglycol adipamide; and (3) N-methyl polytriglycol adipamide and an interpolymer of hexamethylenediammonium adipate hexamethylenediammonium sebacate and epsilon-caprolactam. The products may be cold rolled or cold drawn, and treated with swelling agents such as water or short chain aliphatic alcohols, and may be used in the production of films, filaments, yarns and fabrics. Such fabrics, by exposure to steam, acquire considerable elasticity and anticrease properties. Specifications 474,999, 501,527 and 535,138 are referred to.
GB574942A 1942-05-14 1942-05-14 Improvements in or relating to the production of polyamides Expired GB562370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB574942A GB562370A (en) 1942-05-14 1942-05-14 Improvements in or relating to the production of polyamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB574942A GB562370A (en) 1942-05-14 1942-05-14 Improvements in or relating to the production of polyamides

Publications (1)

Publication Number Publication Date
GB562370A true GB562370A (en) 1944-06-29

Family

ID=9801929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB574942A Expired GB562370A (en) 1942-05-14 1942-05-14 Improvements in or relating to the production of polyamides

Country Status (1)

Country Link
GB (1) GB562370A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052112B (en) * 1957-03-19 1959-03-05 Basf Ag Process for the production of polyamide moldings with a fine crystalline structure
US4113794A (en) 1975-03-12 1978-09-12 Sun Ventures, Inc. Copolymer of blocks of random poly(dioxa-amide) and polyamide
US4130602A (en) 1975-03-12 1978-12-19 Sun Ventures, Inc. Block copolymer of poly(dioxa-amide) and polyamide
US4136133A (en) 1975-03-27 1979-01-23 Sun Ventures, Inc. Block copolymer of poly (oxa-amide) and polyamide
US4235714A (en) 1978-12-18 1980-11-25 Suntech, Inc. Hydrophilic polyamide film for semipermeable membranes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052112B (en) * 1957-03-19 1959-03-05 Basf Ag Process for the production of polyamide moldings with a fine crystalline structure
US4113794A (en) 1975-03-12 1978-09-12 Sun Ventures, Inc. Copolymer of blocks of random poly(dioxa-amide) and polyamide
US4130602A (en) 1975-03-12 1978-12-19 Sun Ventures, Inc. Block copolymer of poly(dioxa-amide) and polyamide
US4136133A (en) 1975-03-27 1979-01-23 Sun Ventures, Inc. Block copolymer of poly (oxa-amide) and polyamide
US4235714A (en) 1978-12-18 1980-11-25 Suntech, Inc. Hydrophilic polyamide film for semipermeable membranes

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