GB564591A - Improvements in the manufacture and production of artificial threads, filaments and the like - Google Patents

Improvements in the manufacture and production of artificial threads, filaments and the like

Info

Publication number
GB564591A
GB564591A GB145143A GB145143A GB564591A GB 564591 A GB564591 A GB 564591A GB 145143 A GB145143 A GB 145143A GB 145143 A GB145143 A GB 145143A GB 564591 A GB564591 A GB 564591A
Authority
GB
United Kingdom
Prior art keywords
grams
solution
sulphuric acid
threads
sodium sulphate
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
GB145143A
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.)
Courtaulds Ltd
Original Assignee
Courtaulds 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 Courtaulds Ltd filed Critical Courtaulds Ltd
Priority to GB145143A priority Critical patent/GB564591A/en
Publication of GB564591A publication Critical patent/GB564591A/en
Application status is Expired legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F4/00Monocomponent artificial filaments or the like of proteins; Manufacture thereof

Abstract

The resistance to attack by boiling water or hot dilute acid of artificial threads having a basis of casein or other protein is improved by treating them with an aqueous solution containing formaldehyde and from 350 grams to 750 grams of sulphuric acid per litre of solution. Sodium sulphate may be added to the treating bath in an amount considerably less than that necessary to react with all the sulphuric acid in the bath with the formation of sodium bisulphate. The protein of which the threads are made may be derived from milk, soya beans, or pea-nuts. The treatment may be carried out at room temperature or at lower or higher temperatures, but the concentration of sulphuric acid should preferably not exceed 600 grams per litre, i.e. about 45 per cent by weight, when the treatment is effected at room temperature or above. In an example, a solution of casein in dilute caustic soda is extruded into an aqueous solution of sulphuric acid and sodium sulphate. The threads so formed are passed through sodium chloride solution, then through a solution of sodium chloride and aluminium sulphate, and are then given a preliminary hardening with a solution of sodium sulphate and formaldehyde. They are then treated with a solution containing 400 grams of sulphuric acid, 300 grams of sodium sulphate and 40 grams of formaldehyde per litre. The hardening treatment may be carried out after cutting the threads into staple fibres. Specifications 512,640 and 549,642 are referred to.
GB145143A 1943-01-28 1943-01-28 Improvements in the manufacture and production of artificial threads, filaments and the like Expired GB564591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB145143A GB564591A (en) 1943-01-28 1943-01-28 Improvements in the manufacture and production of artificial threads, filaments and the like

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB145143A GB564591A (en) 1943-01-28 1943-01-28 Improvements in the manufacture and production of artificial threads, filaments and the like
US510816A US2372622A (en) 1943-01-28 1943-11-18 Manufacture and production of artificial threads, filaments, and the like
FR941115D FR941115A (en) 1943-01-28 1945-08-21 A method of making artificial son and similar products
DEp22463A DE811983C (en) 1943-01-28 1948-11-24 A process for the production of filaments or fibers from animal or vegetable proteins,

Publications (1)

Publication Number Publication Date
GB564591A true GB564591A (en) 1944-10-04

Family

ID=9722223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB145143A Expired GB564591A (en) 1943-01-28 1943-01-28 Improvements in the manufacture and production of artificial threads, filaments and the like

Country Status (4)

Country Link
US (1) US2372622A (en)
DE (1) DE811983C (en)
FR (1) FR941115A (en)
GB (1) GB564591A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB580434A (en) * 1944-09-06 1946-09-06 Robin Hamilton Kendall Thomson Improvements in or relating to the production of artificial insolubilised wet-spun protein filaments
NL62226C (en) * 1945-07-30
NL62061C (en) * 1945-08-22 1900-01-01
NL68974C (en) * 1947-10-06
US6123705A (en) * 1988-06-13 2000-09-26 Sdgi Holdings, Inc. Interbody spinal fusion implants
US7291149B1 (en) 1995-06-07 2007-11-06 Warsaw Orthopedic, Inc. Method for inserting interbody spinal fusion implants
US6770074B2 (en) 1988-06-13 2004-08-03 Gary Karlin Michelson Apparatus for use in inserting spinal implants
US7452359B1 (en) * 1988-06-13 2008-11-18 Warsaw Orthopedic, Inc. Apparatus for inserting spinal implants
US6923810B1 (en) * 1988-06-13 2005-08-02 Gary Karlin Michelson Frusto-conical interbody spinal fusion implants
CA2164859C (en) * 1993-06-10 2005-11-29 Gary Karlin Michelson Apparatus and method of inserting spinal implants
AU7139994A (en) 1988-06-13 1995-01-03 Karlin Technology, Inc. Apparatus and method of inserting spinal implants
US7491205B1 (en) 1988-06-13 2009-02-17 Warsaw Orthopedic, Inc. Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
US5484437A (en) * 1988-06-13 1996-01-16 Michelson; Gary K. Apparatus and method of inserting spinal implants
US6120502A (en) * 1988-06-13 2000-09-19 Michelson; Gary Karlin Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US5015247A (en) 1988-06-13 1991-05-14 Michelson Gary K Threaded spinal implant
US5772661A (en) * 1988-06-13 1998-06-30 Michelson; Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
US5593409A (en) 1988-06-13 1997-01-14 Sofamor Danek Group, Inc. Interbody spinal fusion implants
US6758849B1 (en) 1995-02-17 2004-07-06 Sdgi Holdings, Inc. Interbody spinal fusion implants
US7431722B1 (en) * 1995-02-27 2008-10-07 Warsaw Orthopedic, Inc. Apparatus including a guard member having a passage with a non-circular cross section for providing protected access to the spine
US6210412B1 (en) 1988-06-13 2001-04-03 Gary Karlin Michelson Method for inserting frusto-conical interbody spinal fusion implants
US7534254B1 (en) 1988-06-13 2009-05-19 Warsaw Orthopedic, Inc. Threaded frusto-conical interbody spinal fusion implants
US5609635A (en) 1988-06-28 1997-03-11 Michelson; Gary K. Lordotic interbody spinal fusion implants

Also Published As

Publication number Publication date
FR941115A (en) 1949-01-03
US2372622A (en) 1945-03-27
DE811983C (en) 1951-08-27

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