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FR2286903A2 - Mfr. of non woven plastic matting for battery separators - where non-ionic surfactant injection accelerates extrusion of base filaments - Google Patents

Mfr. of non woven plastic matting for battery separators - where non-ionic surfactant injection accelerates extrusion of base filaments

Info

Publication number
FR2286903A2
FR2286903A2 FR7530249A FR7530249A FR2286903A2 FR 2286903 A2 FR2286903 A2 FR 2286903A2 FR 7530249 A FR7530249 A FR 7530249A FR 7530249 A FR7530249 A FR 7530249A FR 2286903 A2 FR2286903 A2 FR 2286903A2
Authority
FR
France
Prior art keywords
extrusion
matting
mfr
ionic surfactant
battery separators
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.)
Pending
Application number
FR7530249A
Other languages
French (fr)
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.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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
Priority claimed from US317487A external-priority patent/US3870567A/en
Application filed by WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Publication of FR2286903A2 publication Critical patent/FR2286903A2/en
Pending legal-status Critical Current

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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491—Porosity
    • 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
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Cell Separators (AREA)

Abstract

In the prodn. of non-woven fibrous matting by extrusion and entanglement of an array of extruded thermoplastic filaments, a non-ionic surfactant is injected into the molten matl. passing through the extrusion barrel. General, but esp. suitable for mfr. of accumulator separator screens weighing 10-500 g/m2 with a max. pore size of =40 mu and a porosity of >=40%. Suitable for screens made of 2-8C polyolefins, polystyrene or polyamide matls., esp. polypropylene matting made from threads of 0.05-50 mu dia. Addn. of the surfactant during instead of prior to the extrusion process apparently allows the extrusion temp. to be reduced and improves the wettability of the prod. matting by aq. media such as battery electrolytes.
FR7530249A 1972-12-21 1975-10-02 Mfr. of non woven plastic matting for battery separators - where non-ionic surfactant injection accelerates extrusion of base filaments Pending FR2286903A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US317487A US3870567A (en) 1972-12-21 1972-12-21 Battery separator manufacturing process
US51140974A 1974-10-02 1974-10-02

Publications (1)

Publication Number Publication Date
FR2286903A2 true FR2286903A2 (en) 1976-04-30

Family

ID=26980982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530249A Pending FR2286903A2 (en) 1972-12-21 1975-10-02 Mfr. of non woven plastic matting for battery separators - where non-ionic surfactant injection accelerates extrusion of base filaments

Country Status (2)

Country Link
DE (1) DE2543781A1 (en)
FR (1) FR2286903A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064578A (en) * 1989-04-21 1991-11-12 Minnesota Mining And Manufacturing Company Method for making a high wet-strength polyolefin blown microfiber web
US4933229A (en) * 1989-04-21 1990-06-12 Minnesota Mining And Manufacturing Company High wet-strength polyolefin blown microfiber web
US5773375A (en) * 1996-05-29 1998-06-30 Swan; Michael D. Thermally stable acoustical insulation

Also Published As

Publication number Publication date
DE2543781A1 (en) 1976-04-15

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