EP0546111A1 - Compressive strength improvement of fibers by means of radial restraint - Google Patents

Compressive strength improvement of fibers by means of radial restraint

Info

Publication number
EP0546111A1
EP0546111A1 EP91918180A EP91918180A EP0546111A1 EP 0546111 A1 EP0546111 A1 EP 0546111A1 EP 91918180 A EP91918180 A EP 91918180A EP 91918180 A EP91918180 A EP 91918180A EP 0546111 A1 EP0546111 A1 EP 0546111A1
Authority
EP
European Patent Office
Prior art keywords
core
fibers
fiber
resin
percent
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.)
Withdrawn
Application number
EP91918180A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0546111A4 (en
Inventor
Harvey D. Ledbetter
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of EP0546111A4 publication Critical patent/EP0546111A4/en
Publication of EP0546111A1 publication Critical patent/EP0546111A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
    • B65H81/06—Covering or wrapping elongated cores
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/04—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/06—Making ropes or cables from special materials or of particular form from natural or artificial staple fibres
    • D07B5/08—Making ropes or cables from special materials or of particular form from natural or artificial staple fibres agglutinated by adhesives
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/201—Polyolefins
    • D07B2205/2014—High performance polyolefins, e.g. Dyneema or Spectra
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2046—Polyamides, e.g. nylons
    • D07B2205/205—Aramides
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2096—Poly-p-phenylenebenzo-bisoxazole [PBO]

Definitions

  • Fibers that have a high tensile strength typically have a relatively low compressive strength, and vice-versa.
  • the compressive strength of fibers with high tensile strength is seldom more than 30 percent of tensile strength, and is frequently much less. They also frequently have a very low compressive strain-tofailure ratio, requiring little work to cause
  • U.S. Patent 4,499,716 (February 19, 1985) teaches that compressive strength may be improved by wrapping a thick core of high tenacity fiber, which is. typically solidified into a bar by impregnating with epoxy resin and curing prior to wrapping, with a helical wrapping of high tenacity yarn under very high tension. such that the core is under at least C.1 percent radial compression.
  • the structures taught in the patent are stiff and inflexible. Flexibility is
  • the fiber may be wrapped on a spool and shaped to conform to a desired shape before curing in a composite.
  • the process of the present invention can be used to make filiform articles and prepregs of the present invention.
  • Those filiform articles and prepregs are flexible enough to be drapable.
  • the prepregs are useful for making composites, which can be shaped before curing to form useful structural materials.
  • the present invention uses a core containing a reinforcing fiber.
  • the reinforcing fiber preferably has a tensile strength of at least 2 GPa, more preferably at least 3 GPa and most preferably at least 4 GPa. It preferably has a tensile modulus of at least 100 GPa and more preferably at least 200 GPa.
  • Aramid fibers are known and commercially available. Exemplary suitable fibers are commercially available under the trademarks KevlarTM, TwaronTM and
  • DM divalent organic moiety
  • Polybenzazole mer units are preferably represented by one of Formulae 1(a) or (b), and more preferably by Formula 1(b):
  • the average denier of the wrapped fiber is 2680 denier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Reinforced Plastic Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP91918180A 1990-08-08 1991-07-30 Compressive strength improvement of fibers by means of radial restraint Withdrawn EP0546111A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US564480 1983-12-21
US56448090A 1990-08-08 1990-08-08

Publications (2)

Publication Number Publication Date
EP0546111A4 EP0546111A4 (en) 1993-04-29
EP0546111A1 true EP0546111A1 (en) 1993-06-16

Family

ID=24254639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91918180A Withdrawn EP0546111A1 (en) 1990-08-08 1991-07-30 Compressive strength improvement of fibers by means of radial restraint

Country Status (7)

Country Link
EP (1) EP0546111A1 (cs)
JP (1) JP3125222B2 (cs)
KR (1) KR930701338A (cs)
CA (1) CA2088580A1 (cs)
IE (1) IE912792A1 (cs)
TW (1) TW206263B (cs)
WO (1) WO1992002444A1 (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5700823A (en) * 1994-01-07 1997-12-23 Sugen, Inc. Treatment of platelet derived growth factor related disorders such as cancers
WO1995024190A2 (en) 1994-03-07 1995-09-14 Sugen, Inc. Receptor tyrosine kinase inhibitors for inhibiting cell proliferative disorders and compositions thereof
US6331555B1 (en) 1995-06-01 2001-12-18 University Of California Treatment of platelet derived growth factor related disorders such as cancers
US6316479B1 (en) 1997-05-19 2001-11-13 Sugen, Inc. Isoxazole-4-carboxamide compounds active against protein tryosine kinase related disorders
ATE414807T1 (de) * 2005-07-15 2008-12-15 Teijin Aramid Bv Cord
AU2015264789B2 (en) * 2008-01-18 2017-05-25 Kone Corporation Rope for a hoisting machine, elevator and use
US8166742B2 (en) * 2008-02-28 2012-05-01 Textron Innovations Inc. Uncured composite rope including a plurality of different fiber materials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595358A (en) 1977-05-17 1981-08-12 Commw Scient Ind Res Org Impact-resisting composites
US4272950A (en) * 1978-12-07 1981-06-16 Commissariat A L'energie Atomique Filiform textile material
US4499716A (en) * 1983-06-13 1985-02-19 E. I. Du Pont De Nemours And Company Reinforcement structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9202444A1 *

Also Published As

Publication number Publication date
WO1992002444A1 (en) 1992-02-20
EP0546111A4 (en) 1993-04-29
JPH06500356A (ja) 1994-01-13
KR930701338A (ko) 1993-06-11
JP3125222B2 (ja) 2001-01-15
CA2088580A1 (en) 1992-02-09
TW206263B (cs) 1993-05-21
IE912792A1 (en) 1992-02-12

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