CA2037232A1 - High strength papers from floc and fibrids - Google Patents

High strength papers from floc and fibrids

Info

Publication number
CA2037232A1
CA2037232A1 CA002037232A CA2037232A CA2037232A1 CA 2037232 A1 CA2037232 A1 CA 2037232A1 CA 002037232 A CA002037232 A CA 002037232A CA 2037232 A CA2037232 A CA 2037232A CA 2037232 A1 CA2037232 A1 CA 2037232A1
Authority
CA
Canada
Prior art keywords
floc
fibrids
high strength
phenylene
papers
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.)
Granted
Application number
CA002037232A
Other languages
French (fr)
Other versions
CA2037232C (en
Inventor
Gary L. Hendren
Hamid M. Ghorashi
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.)
EIDP Inc
Original Assignee
Individual
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 US07/640,592 external-priority patent/US5126012A/en
Application filed by Individual filed Critical Individual
Publication of CA2037232A1 publication Critical patent/CA2037232A1/en
Application granted granted Critical
Publication of CA2037232C publication Critical patent/CA2037232C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/46—Non-siliceous fibres, e.g. from metal oxides
    • D21H13/50—Carbon fibres
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/902—High modulus filament or fiber
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/903—Microfiber, less than 100 micron diameter
    • 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
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Fibrid-floc papers yield unexpected improvements in strength when made from a combination of carbon, aramid, or glass fibers and fibrids consisting essentially of
CA002037232A 1990-03-12 1991-02-27 High strength papers from floc and fibrids Expired - Fee Related CA2037232C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US49158190A 1990-03-12 1990-03-12
US07/491,581 1990-03-12
US07/640,592 US5126012A (en) 1990-03-12 1991-01-18 High strength papers from floc and fibrids
US07/640,592 1991-01-18

Publications (2)

Publication Number Publication Date
CA2037232A1 true CA2037232A1 (en) 1991-09-13
CA2037232C CA2037232C (en) 2002-01-29

Family

ID=27050489

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002037232A Expired - Fee Related CA2037232C (en) 1990-03-12 1991-02-27 High strength papers from floc and fibrids

Country Status (5)

Country Link
EP (1) EP0446870B1 (en)
JP (1) JP2841905B2 (en)
AU (1) AU645529B2 (en)
CA (1) CA2037232C (en)
DE (1) DE69101997T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232737A (en) * 1990-04-12 1993-08-03 E. I. Du Pont De Nemours And Company Method of coating a metal wire with a temperature and stress resistant polymeric coating
US5482773A (en) * 1991-07-01 1996-01-09 E. I. Du Pont De Nemours And Company Activated carbon-containing fibrids
IL102338A (en) * 1991-07-01 1996-11-14 Du Pont Polymeric febrids containing activated carbon
US5320892A (en) * 1993-02-22 1994-06-14 E. I. Du Pont De Nemours And Company Tough layered papers with improved surface adhesion
WO1998056987A1 (en) * 1997-06-10 1998-12-17 Teijin Limited Heat-resistant fiber paper
US8118975B2 (en) * 2007-12-21 2012-02-21 E. I. Du Pont De Nemours And Company Papers containing fibrids derived from diamino diphenyl sulfone
US7803247B2 (en) * 2007-12-21 2010-09-28 E.I. Du Pont De Nemours And Company Papers containing floc derived from diamino diphenyl sulfone
US8114251B2 (en) * 2007-12-21 2012-02-14 E.I. Du Pont De Nemours And Company Papers containing fibrids derived from diamino diphenyl sulfone
WO2020201475A1 (en) * 2019-04-05 2020-10-08 Ahlstrom-Munksjö Oyj Flue gas filtration media

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL246230A (en) * 1958-12-09
US4183782A (en) * 1978-07-11 1980-01-15 Gaf Corporation Method of producing glass mats using novel glass fiber dispersion composition
US4515656A (en) * 1981-08-28 1985-05-07 E. I. Du Pont De Nemours And Company Low density nonwoven sheets
US4840838A (en) * 1988-09-08 1989-06-20 E. I. Du Pont De Nemours And Company High temperature filter felt
BR8905208A (en) * 1988-10-14 1990-05-15 Du Pont FUSION-PROCESSING POLYAMIDE; POLYMER; FUSION-PROCESSING COMPOSITION; FIBER OR FILM; AND PROCESS FOR THE PREPARATION OF POLYAMIDES

Also Published As

Publication number Publication date
JPH0533289A (en) 1993-02-09
DE69101997D1 (en) 1994-06-23
DE69101997T2 (en) 1994-12-01
EP0446870A1 (en) 1991-09-18
AU7274791A (en) 1991-09-12
AU645529B2 (en) 1994-01-20
EP0446870B1 (en) 1994-05-18
JP2841905B2 (en) 1998-12-24
CA2037232C (en) 2002-01-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed