GB919500A - Improvements relating to bonded fibrous sheet material and its production - Google Patents

Improvements relating to bonded fibrous sheet material and its production

Info

Publication number
GB919500A
GB919500A GB3646459A GB3646459A GB919500A GB 919500 A GB919500 A GB 919500A GB 3646459 A GB3646459 A GB 3646459A GB 3646459 A GB3646459 A GB 3646459A GB 919500 A GB919500 A GB 919500A
Authority
GB
United Kingdom
Prior art keywords
mat
fibres
binder
sheet material
synthetic
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.)
Expired
Application number
GB3646459A
Inventor
Joseph Lee Hollowell
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
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB3646459A priority Critical patent/GB919500A/en
Publication of GB919500A publication Critical patent/GB919500A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/50Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04Polyurethanes
    • C08L75/08Polyurethanes from polyethers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/06Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres by treatment to produce shrinking, swelling, crimping or curling of fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645Impregnation followed by a solidification process

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

919,500. Bonded fibrous material; coated bonded fibrous material. DU PONT DE NEMOURS & CO., E. I. Oct. 27, 1959, No. 36464/59. Addition to 914,712. Class 140. A flexible moisture permeable sheet material comprises a ligated fibrous met comprising at least 50%, based on weight of fibres in the mat, of in situ-retracted synthetic fibres, the said mat having been shrunk by 30% to 90% of its original planar area, and dispersed throughout the said mat 10% to 70% of a synthetic polymer binder based on the combined weight of fibres in the mat and of the binder, said binder being in such a form that in the absence of the fibres it would have a modulus of elasticity at 5% elongation of 5 to 150 pounds per square inch. The sheet material may be made by forming a mat or web of retractable synthetic staple fibres some of which are positioned substantially perpendicular to the plane of the mat, treating the mat so as to retract the fibres to effect a reduction in the surface area of the mat of from 30 to 90% and then impregnating the shrunken mat with from 10 to 70% of the binder based on the combined weight of the fibres in the mat and of the binder. The shrinking is done with hot water or other means capable of retracting the fibres without fusing or damaging them. The binder may be introduced into the mat in the form of a solution or aqueous dispersion, or as a dry powder or as a slurry of fibrils, after which it is coagulated by immersing the mat in a coagulant or other appropriate means and the mat is thereafter dried. By the term " ligated " and " ligating " is meant the binding together of adjacently disposed fibres lying substantially parallel to the plane of the mat by forcibly orienting sufficient fibres to a position substantially perpendicular to the plane of the mat so that a unitary dense coherent structure is formed. The required fibre orientation may be accomplished by punching the mat with fine barbed needles in a needle loom. Specified fibres and shrinking agents (the latter in brackets) are cellulose acetate (aqueous acetone), nylon (dilute nitric acid), polyethylene (hot water), polyethylene terephthalate (hot water or hot air), polystyrene, polytetrafluorethylene, copolymer of acrylonitrile and vinyl chloride, and copolymer of vinyl chloride and vinylidene chloride (hot air), viscose rayon and regenerated cellulose. A suitable binder is an elastomer formed by employing a compound having two active hydrogen atoms bonded to amino-nitrogen atoms to chain-extend the reaction product of a polyalkylene ether glycol and an organic diisocyanate. Preferred glycols are those of polypropylene ether and polytetramethylene ether, and a preferred diisocyanate is tolylene-2,4. A suitable chain extending compound is hydrazine. The binder may be dissolved in a solvent such as N,N-dimethyl formamide, dimethyl sulphoxide, tetrahydrofuran, tetramethyl urea, N,N-dimethyl acetamide. Non- retractable fibres employed may be natural or artificial, straight or crimped. The mat may be buffed, brushed dyed or pressed before or after impregnation and the product may be printed, stencilled, embossed, or dyed and coated on one or both sides with vinyl chloride polymers or copolymers, polyurethane elastomers, or synthetic rubbers, e.g. butadienestyrene or butadiene-acrylonitrile copolymers or neoprene. Specifications 712,950, 788,560, 849,154, 875,052, 914,711 and U.S.A. Specifications 2,336,797, 2,515,834, 2,758,908 and 2,910,763 also are referred to.
GB3646459A 1959-10-27 1959-10-27 Improvements relating to bonded fibrous sheet material and its production Expired GB919500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3646459A GB919500A (en) 1959-10-27 1959-10-27 Improvements relating to bonded fibrous sheet material and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3646459A GB919500A (en) 1959-10-27 1959-10-27 Improvements relating to bonded fibrous sheet material and its production

Publications (1)

Publication Number Publication Date
GB919500A true GB919500A (en) 1963-02-27

Family

ID=10388384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3646459A Expired GB919500A (en) 1959-10-27 1959-10-27 Improvements relating to bonded fibrous sheet material and its production

Country Status (1)

Country Link
GB (1) GB919500A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476638A (en) * 1966-11-16 1969-11-04 Kendall & Co Impregnated nonwoven needled fabric consisting of a blend of synthetic fibers
GB2160123A (en) * 1984-06-12 1985-12-18 Tikkurilan Vaeritehtaat Oy Waterproof fabric
EP1449863A1 (en) * 2001-10-31 2004-08-25 Mitsubishi Heavy Industries, Ltd. Matrix resin composition for fiber−reinforced plastics and process for production of fiber−reinforced plastics
EP1471089A2 (en) * 2003-03-31 2004-10-27 Mitsubishi Heavy Industries, Ltd. Prepreg for fiber reinforced plastic and production process

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476638A (en) * 1966-11-16 1969-11-04 Kendall & Co Impregnated nonwoven needled fabric consisting of a blend of synthetic fibers
GB2160123A (en) * 1984-06-12 1985-12-18 Tikkurilan Vaeritehtaat Oy Waterproof fabric
EP1449863A1 (en) * 2001-10-31 2004-08-25 Mitsubishi Heavy Industries, Ltd. Matrix resin composition for fiber−reinforced plastics and process for production of fiber−reinforced plastics
EP1449863A4 (en) * 2001-10-31 2005-01-19 Mitsubishi Heavy Ind Ltd Matrix resin composition for fiber-reinforced plastics and process for production of fiber-reinforced plastics
US7695588B2 (en) 2001-10-31 2010-04-13 Mitsubishi Heavy Industries, Ltd. Matrix resin composition for fiber-reinforced plastics and process for production of fiber-reinforced plastics
EP1471089A2 (en) * 2003-03-31 2004-10-27 Mitsubishi Heavy Industries, Ltd. Prepreg for fiber reinforced plastic and production process
EP1471089A3 (en) * 2003-03-31 2005-12-21 Mitsubishi Heavy Industries, Ltd. Prepreg for fiber reinforced plastic and production process
US8945683B2 (en) 2003-03-31 2015-02-03 Mitsubishi Heavy Industries, Ltd. Prepreg for fiber reinforced plastic and production process thereof

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