BR9815117A - Respirador composto de camadas múltiplas, e, processo para a produção do mesmo - Google Patents

Respirador composto de camadas múltiplas, e, processo para a produção do mesmo

Info

Publication number
BR9815117A
BR9815117A BR9815117-7A BR9815117A BR9815117A BR 9815117 A BR9815117 A BR 9815117A BR 9815117 A BR9815117 A BR 9815117A BR 9815117 A BR9815117 A BR 9815117A
Authority
BR
Brazil
Prior art keywords
particles
layer
molded
production
multiple layers
Prior art date
Application number
BR9815117-7A
Other languages
English (en)
Other versions
BR9815117B1 (pt
Inventor
James E Springett
Leonard W Barrett
Roberta C Harper
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of BR9815117A publication Critical patent/BR9815117A/pt
Publication of BR9815117B1 publication Critical patent/BR9815117B1/pt

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Laminated Bodies (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)

Abstract

''RESPIRADOR COMPOSTO DE CAMADAS MúLTIPLAS, E, PROCESSO PARA A PRODUçãO DO MESMO'' Respiradores moldados contendo uma camada permeável ao ar de partículas absorventes, entre camadas permeáveis ao ar retentoras de partículas. A camada contendo partículas é estirável durante a sua conformação sem rompimento ou perda significativa de partículas. Pelo menos algumas das fibras na camada contendo partículas são suficientemente aderidas depois de serem formadas por si próprias em uma tela livre de partículas e são resfriadas à temperatura ambiente de forma que a tela adira-se a si própria. Os respiradores podem ser moldados a partir de telas lisas sem a necessidade de se fabricar a camada contendo partículas moldada previamente.
BRPI9815117-7A 1997-12-01 1998-04-13 respirador moldado contendo partÍculas absorventes. BR9815117B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/982,119 US6102039A (en) 1997-12-01 1997-12-01 Molded respirator containing sorbent particles
PCT/US1998/007529 WO1999028542A1 (en) 1997-12-01 1998-04-13 Molded respirator containing sorbent particles

Publications (2)

Publication Number Publication Date
BR9815117A true BR9815117A (pt) 2000-10-10
BR9815117B1 BR9815117B1 (pt) 2008-11-18

Family

ID=25528859

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9815117-7A BR9815117B1 (pt) 1997-12-01 1998-04-13 respirador moldado contendo partÍculas absorventes.

Country Status (11)

Country Link
US (2) US6102039A (pt)
EP (1) EP1036229B1 (pt)
JP (1) JP4195188B2 (pt)
KR (1) KR100506304B1 (pt)
CN (1) CN1096513C (pt)
AU (1) AU7117898A (pt)
BR (1) BR9815117B1 (pt)
CA (1) CA2312130C (pt)
DE (1) DE69806635T2 (pt)
ES (1) ES2179486T3 (pt)
WO (1) WO1999028542A1 (pt)

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ES2179486T3 (es) 2003-01-16
JP2001525201A (ja) 2001-12-11
CA2312130C (en) 2007-01-09
EP1036229A1 (en) 2000-09-20
CA2312130A1 (en) 1999-06-10
US6102039A (en) 2000-08-15
KR100506304B1 (ko) 2005-08-05
KR20010032629A (ko) 2001-04-25
US6234171B1 (en) 2001-05-22
BR9815117B1 (pt) 2008-11-18
CN1096513C (zh) 2002-12-18
WO1999028542A1 (en) 1999-06-10
DE69806635D1 (de) 2002-08-22
DE69806635T2 (de) 2005-10-13
CN1285012A (zh) 2001-02-21
AU7117898A (en) 1999-06-16
JP4195188B2 (ja) 2008-12-10
EP1036229B1 (en) 2002-07-17

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