GB1193866A - Improvements in the production of Polyamides - Google Patents

Improvements in the production of Polyamides

Info

Publication number
GB1193866A
GB1193866A GB2619567A GB2619567A GB1193866A GB 1193866 A GB1193866 A GB 1193866A GB 2619567 A GB2619567 A GB 2619567A GB 2619567 A GB2619567 A GB 2619567A GB 1193866 A GB1193866 A GB 1193866A
Authority
GB
United Kingdom
Prior art keywords
vapour
vacuum chamber
polyamides
polyamide
june
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
GB2619567A
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Publication of GB1193866A publication Critical patent/GB1193866A/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
    • C08G69/46—Post-polymerisation treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Artificial Filaments (AREA)

Abstract

1,193,866. Polyamides. TOYO BOSEKI K.K. 7 June, 1967 [11 June, 1966; 3 Feb., 1967], No. 26195/67. Heading C3R. In a continuous process for manufacturing linear polyamide filaments by (a) hydrolytically polymerizing monomers, (b) purifying the resulting intermediate polyamide in a vacuum chamber, (c) simultaneously or subsequently effecting further polymerization in the molten state under reduced pressure and (d) discharging and melt-spinning the polyamide water and/or alcohol vapour is separately introduced into the vacuum chamber of step (b) so as to maintain therein a partial vapour pressure thereof between 2 and 500 mm. Hg. The vapour may be pre-heated and may be mixed with an inert gas. Specified alcohols are C 1-3 alkanols, glycol, glycerol and benzyl alcohol. Specified polyamides are nylons 6, 7, 9, 11, 66 and 610 and polyxylylene adipamide. Additives which may be present during the polymerization are various organic or inorganic P, Mn, Co, Zn, Ca or Mg compounds. Four forms of apparatus are illustrated in three of which the vapour is introduced in countercurrent along a screw through which the melt is removed from the vacuum chamber while in the fourth it is introduced through a rotating hollow shaft near the bottom of the chamber. The filaments are suitable for tyre cords or fishing nets. Reference is made to Specifications 1,042,229 and 967,807.
GB2619567A 1966-06-11 1967-06-07 Improvements in the production of Polyamides Expired GB1193866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3788066 1966-06-11
JP655667 1967-02-03

Publications (1)

Publication Number Publication Date
GB1193866A true GB1193866A (en) 1970-06-03

Family

ID=26340735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2619567A Expired GB1193866A (en) 1966-06-11 1967-06-07 Improvements in the production of Polyamides

Country Status (3)

Country Link
CH (1) CH508062A (en)
DE (1) DE1669546A1 (en)
GB (1) GB1193866A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255674A1 (en) * 1971-11-18 1973-05-24 Allied Chem PROCESS FOR CONTINUOUS EVAPORATION OF EXTRACTABLE MATERIAL FROM A POLYCAPROAMIDE MELT
USRE28937E (en) 1971-11-18 1976-08-24 Allied Chemical Corporation Control of viscosity and polycaproamide degradation during vacuum polycondensation
CN110117832A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN111333834A (en) * 2020-03-05 2020-06-26 浙江恒澜科技有限公司 Devolatilization method of nylon 6 melt
CN113969057A (en) * 2021-10-27 2022-01-25 金旸（厦门）新材料科技有限公司 Phosphonate flame-retardant system polyamide material and preparation method thereof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255674A1 (en) * 1971-11-18 1973-05-24 Allied Chem PROCESS FOR CONTINUOUS EVAPORATION OF EXTRACTABLE MATERIAL FROM A POLYCAPROAMIDE MELT
FR2160625A1 (en) * 1971-11-18 1973-06-29 Allied Chem
USRE28937E (en) 1971-11-18 1976-08-24 Allied Chemical Corporation Control of viscosity and polycaproamide degradation during vacuum polycondensation
CN110117835B (en) * 2013-10-28 2021-12-07 上海凯赛生物技术股份有限公司 Nylon fiber and preparation method thereof
CN110117831A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN110117833A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN110117834A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN110117835A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN110117832B (en) * 2013-10-28 2021-12-03 上海凯赛生物技术股份有限公司 Nylon fiber and preparation method thereof
CN110117834B (en) * 2013-10-28 2021-12-07 上海凯赛生物技术股份有限公司 Nylon fiber and preparation method thereof
CN110117831B (en) * 2013-10-28 2021-12-07 上海凯赛生物技术股份有限公司 Nylon fiber and preparation method thereof
CN110117832A (en) * 2013-10-28 2019-08-13 上海凯赛生物技术研发中心有限公司 Nylon fiber and preparation method thereof
CN110117833B (en) * 2013-10-28 2021-12-07 上海凯赛生物技术股份有限公司 Nylon fiber and preparation method thereof
CN111333834A (en) * 2020-03-05 2020-06-26 浙江恒澜科技有限公司 Devolatilization method of nylon 6 melt
CN111333834B (en) * 2020-03-05 2022-12-06 浙江恒逸石化研究院有限公司 Devolatilization method of nylon 6 melt
CN113969057A (en) * 2021-10-27 2022-01-25 金旸（厦门）新材料科技有限公司 Phosphonate flame-retardant system polyamide material and preparation method thereof

Also Published As

Publication number Publication date
CH508062A (en) 1971-05-31
DE1669546A1 (en) 1971-04-22

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Legal Events

Date Code Title Description
PS Patent sealed
7B Patent expired after prolongation of 20 years