BR0117150A - Filamento de ptfe expandido com seção transversal redonda - Google Patents

Filamento de ptfe expandido com seção transversal redonda

Info

Publication number
BR0117150A
BR0117150A BR0117150-0A BR0117150A BR0117150A BR 0117150 A BR0117150 A BR 0117150A BR 0117150 A BR0117150 A BR 0117150A BR 0117150 A BR0117150 A BR 0117150A
Authority
BR
Brazil
Prior art keywords
fiber
expanded ptfe
section
round cross
ptfe filament
Prior art date
Application number
BR0117150-0A
Other languages
English (en)
Other versions
BR0117150B1 (pt
Inventor
Jose Antonio Almeida Neto
Original Assignee
Manegro Administracao E Partic
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 Manegro Administracao E Partic filed Critical Manegro Administracao E Partic
Publication of BR0117150A publication Critical patent/BR0117150A/pt
Publication of BR0117150B1 publication Critical patent/BR0117150B1/pt

Links

Classifications

    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
    • D01F6/12—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2927—Rod, strand, filament or fiber including structurally defined particulate matter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Abstract

"FILAMENTO DE PTFE EXPANDIDO COM SEçãO TRANSVERSAL REDONDA". A presente invenção refere-se a uma fibra de PTFE expandida de forma fina com uma seção transversal redonda e uma superfície externa suave que é obtida pela torção de filamentos esticados planos acima do limite ideal para essas fibras e subseq³entemente pelo esticamento adicional com tratamento por calor. Esses filamentos podem ser utilizados para tecidos, entre outras aplicações, e estão presentes as seguintes propriedades: baixo encolhimento, baixo alongamento sob tensão e alta resistência à tensão. A invenção também sugere um processo de fabricação da dita fibra, compreendendo as etapas de torção do dito filamento de PTFE expandido em excesso ao nível ideal para a fibra, e esticamento da fibra torcida sob tratamento por calor até que a fibra retorne para sua torção ideal e seja fixada.
BRPI0117150-0A 2001-10-16 2001-10-16 fibra torcida de politetrafluoroetileno expandido e processo de produção de uma fibra de politetrafluoroetileno expandido. BR0117150B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2001/000126 WO2003033784A1 (en) 2001-10-16 2001-10-16 Expanded ptfe filament with round cross section

Publications (2)

Publication Number Publication Date
BR0117150A true BR0117150A (pt) 2004-11-23
BR0117150B1 BR0117150B1 (pt) 2011-04-05

Family

ID=3946520

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0117150-0A BR0117150B1 (pt) 2001-10-16 2001-10-16 fibra torcida de politetrafluoroetileno expandido e processo de produção de uma fibra de politetrafluoroetileno expandido.

Country Status (4)

Country Link
US (1) US20050053783A1 (pt)
BR (1) BR0117150B1 (pt)
DE (1) DE10197279T5 (pt)
WO (1) WO2003033784A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101074500B (zh) * 2006-05-18 2010-09-01 上海市凌桥环保设备厂有限公司 一种聚四氟乙烯短纤维的制造方法
CN101074499B (zh) * 2006-05-18 2010-09-08 上海市凌桥环保设备厂有限公司 一种聚四氟乙烯长纤维的制造方法
US7812081B2 (en) * 2008-02-26 2010-10-12 General Electric Company Methods of making a mixture for a PTFE membrane with inorganic materials, and compositions related thereto
JP5364461B2 (ja) * 2009-06-17 2013-12-11 宇明泰化工股▲ふん▼有限公司 ポリテトラフルオロエチレン実撚糸及びその製造方法
CA2922694C (en) * 2013-08-29 2017-12-05 Teleflex Medical Incorporated High-strength multi-component suture
US20150079865A1 (en) * 2013-09-17 2015-03-19 W.L. Gore & Associates, Inc. Conformable Microporous Fiber and Woven Fabrics Containing Same
CN109837724B (zh) * 2019-04-09 2021-05-25 南通鑫唐纺织印染有限公司 一种用于纺织品的去油装置
US12083482B2 (en) * 2019-06-13 2024-09-10 W. L. Gore & Associates, Inc. Lightweight expanded polytetrafluoroethylene membranes having high instrinsic strength and optical transparency
CN114671394A (zh) * 2022-03-08 2022-06-28 南开大学 一种中空纤维驱动器及其制备方法及在微流体操控中的应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2729837B2 (ja) * 1988-07-25 1998-03-18 旭化成工業株式会社 ポリテトラフルオロエチレン糸状物及びその製造法
US5262234A (en) * 1991-10-17 1993-11-16 W. L. Gore & Associates, Inc. Polyetrafluoroethylene fiber containing conductive filler
US5281475A (en) * 1991-10-17 1994-01-25 W. L. Gore & Associates, Inc. Continuous polytetrafluoroethylene fibers
US5591526A (en) * 1994-06-15 1997-01-07 W. L. Gore & Associates, Inc Expanded PTFE fiber and fabric and method of making same
US5989709A (en) * 1998-04-30 1999-11-23 Gore Enterprises Holdings, Inc. Polytetrafluoroethylene fiber

Also Published As

Publication number Publication date
BR0117150B1 (pt) 2011-04-05
WO2003033784A8 (en) 2004-03-04
WO2003033784A1 (en) 2003-04-24
US20050053783A1 (en) 2005-03-10
DE10197279T5 (de) 2004-11-04

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/10/2001, OBSERVADAS AS CONDICOES LEGAIS.

B25C Requirement related to requested transfer of rights

Owner name: MANEGRO ADMINISTRACAO E PARTICIPACOES LTDA. (BR/RJ

B25A Requested transfer of rights approved

Owner name: TEADIT INDA STRIA E COMA RCIO LTDA. (BR/RJ)

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 20A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2640 DE 10-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.