US20040071964A1 - Beneficiated fiber and composite - Google Patents

Beneficiated fiber and composite Download PDF

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Publication number
US20040071964A1
US20040071964A1 US10/269,051 US26905102A US2004071964A1 US 20040071964 A1 US20040071964 A1 US 20040071964A1 US 26905102 A US26905102 A US 26905102A US 2004071964 A1 US2004071964 A1 US 2004071964A1
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US
United States
Prior art keywords
fiber
beneficiated
composite
suspension
lumen
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.)
Abandoned
Application number
US10/269,051
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English (en)
Inventor
Jeffrey Nesbitt
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.)
Americhem 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
Application filed by Individual filed Critical Individual
Priority to US10/269,051 priority Critical patent/US20040071964A1/en
Assigned to MICROCELLULAR TECHNOLOGIES, LLC reassignment MICROCELLULAR TECHNOLOGIES, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NESBITT, JEFFREY E.
Assigned to AMERICHEM, INC. reassignment AMERICHEM, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MICROCELLULAR TECHNOLOGIES, LLC
Priority to ES03776333T priority patent/ES2266880T3/es
Priority to US10/684,117 priority patent/US7175907B2/en
Priority to CA 2501489 priority patent/CA2501489C/en
Priority to DE2003607501 priority patent/DE60307501T2/de
Priority to MXPA05003751A priority patent/MXPA05003751A/es
Priority to PCT/US2003/032326 priority patent/WO2004033199A2/en
Priority to EP20030776333 priority patent/EP1562745B1/en
Priority to KR1020057006080A priority patent/KR101077594B1/ko
Priority to AT03776333T priority patent/ATE335600T1/de
Priority to AU2003284102A priority patent/AU2003284102A1/en
Priority to CNB2003801012966A priority patent/CN100522574C/zh
Priority to JP2004543729A priority patent/JP2006502296A/ja
Publication of US20040071964A1 publication Critical patent/US20040071964A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2207/00—Foams characterised by their intended use
    • C08J2207/12—Sanitary use, e.g. diapers, napkins or bandages
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • 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

Definitions

  • the invention relates to fiber composites and a manufacturing method thereof. More specifically, the invention relates to a beneficiated cellulose fiber for use in a plastic composite and a manufacturing method thereof.
  • composites consisting essentially of plastic and natural fibers are steadily replacing the use of traditional wood in construction and transportation applications. Unlike natural wood that splinters and warps, the composites are weather resistant and relatively maintenance free but still offer the same look and feel as natural wood.
  • the composites typically comprise a plurality of fibers imbedded in a polymeric material.
  • the polymeric material typically consists of a high or low-density olefin thermoplastic or a vinyl based thermoplastic polymer depending on the desired end-use characteristics of the composite.
  • the fibers may be chosen from a variety of plants depending on the desired characteristics of the fiber, for example, density or strength. The natural variation in the apparent density of the different plant fibers is attributable to the presence of a central void or lumen within the fiber.
  • the manufacture of the composite typically involves extruding of the polymeric material and the fiber.
  • an extruder melts the polymeric material and mixes the melted polymeric material with the fiber.
  • the melted polymeric material becomes imbedded with the fiber.
  • a bonding agent may be added to the mixture to aid in achieving an adhesive bond between the fiber and the polymeric material.
  • additives such as, stabilizers, antioxidants, UV absorbers, fillers and extenders, pigments, process aids and lubricants, impact modifiers, bactericides and other materials that enhance physical and/or chemical properties as well as processing.
  • a chemical blowing agent or gas may also be introduced into the mixture.
  • the blowing agent decomposes, disbursing a gas, such as, nitrogen or carbon dioxide, into the melted polymeric material.
  • a gas such as, nitrogen or carbon dioxide
  • the melted mixture exits the extruder through a die.
  • the extrusion pressure is reduced to atmosphere and the polymeric material begins to cool causing the entrained gases to expand as bubbles within the melted mixture.
  • the bubbles are trapped by the surrounding polymeric material and form voids in the composite. These voids reduce the overall density and weight of the composite.
  • the invention relates to a beneficiated fiber and composite.
  • the beneficiated fiber includes a fiber having a lumen with voids.
  • a suspension is drawn into the lumen to beneficiate the fiber.
  • a polymeric material is imbedded with the fiber to form the composite.
  • the natural voids of the lumen are preserved by the suspension ingredients allowing the fiber to maintain natural density and strength characteristics.
  • the invention further relates to a method for manufacturing a beneficiated fiber.
  • a fiber is mixed with a suspension to form a homogeneous mixture.
  • the suspension is drawn into a lumen of the fiber by capillary action to beneficiate the fiber and the beneficiated fiber is cooled.
  • the beneficiated fiber may then be mixed with a melted polymeric material to form a composite that is extruded to form a composite structural member.
  • FIG. 1 is a perspective view of a beneficiated fiber composite structural member.
  • FIG. 2 is a perspective view of a bundle of fibers.
  • FIG. 3 is a flow diagram showing the process of beneficiating the fibers and manufacturing a beneficiated fiber composite.
  • FIG. 1 shows a beneficiated fiber composite structural member 10 .
  • the composite structural member 10 has a plurality of fibers 12 beneficiated with a suspension 14 and imbedded with a polymeric material 16 .
  • the suspension 14 may consist of a chemical blowing agent or foaming agent, a catalyst, and a carrier.
  • the composite structural member 10 also has a plurality of voids 18 .
  • the major components of the composite structural member 10 , and the method of beneficiating the fiber 12 and manufacturing the composite structural member 10 will hereafter be described.
  • FIG. 2 shows the fiber 12 .
  • the fiber 12 may be a natural fiber from a bast fiber plant, such as, flax, hemp, jute, coir, kenaf, or ramie, or alternatively may be refined wood, wheat, straw, or other ligno-cellulosic fibers.
  • the bast fiber plants are characterized by their long, strong fiber bundles and high cellulose content.
  • the fibers 12 from the bast fiber plants have a high tensile strength and a relatively low apparent density of 0.28-0.62 g/cc, yielding an especially high strength to weight ratio.
  • Each fiber 12 has a central void or lumen 20 .
  • the lumen 20 has an opening of approximately 30 microns.
  • Other fibers having a high purity and a high aspect ratio (ratio of fiber diameter to length) may also be used, such as, refined wood, wheat, straw, or other ligno-cellulosic fibers.
  • the suspension 14 may include a chemical blowing agent or foaming agent, a catalyst, and a carrier.
  • the individual components are combined and then agitated or emulsified to form a blended mixture.
  • the carrier may be an acrylic urethane polymer solution or emulsion, but other known film-forming polymers may be used to strengthen the internal walls of the fiber. Examples of polymer networks useful to this end result are acrylics, epoxies, phenolics, melamines, vinyls, as well as virtually all film-forming thermoset or thermoplastic polymers.
  • the carriers may be as emulsions with water or as solutions where the blowing agent and/or the catalysts are dispersed therein.
  • the chemical blowing agent or foaming agent may be any of a variety of known chemicals that releases a gas upon thermal decomposition.
  • One such blowing agent is a very fine grade of azodicarbonamide.
  • the catalyst or activator may be a calcium carbonate.
  • Other examples of particulate catalysts or activators may be selected compounds of cadmium, zinc, barium, calcium, strontium, magnesium, lead, tin or silicon. Any known catalyst or activator may be used that assists in the decomposition of the blowing agent. Because the lumen 20 of the fiber 12 has an approximate opening of 30 microns, particulate ingredients should be no greater than 5 microns.
  • the dispersion of the blowing agent and the other particulates require high velocity dispersators to deagglomerate the particles. Any known dispersator may be used for this process, such as, Cowles and Hockmeyer dispersators.
  • the polymeric material 16 may be a polyvinyl chloride foam, however, any of a variety of thermoplastic polymers may be used, such as, polyethylene, polypropylene, cellulosics other vinyls, acrylics, urethanes, etc.
  • the composite structural member 10 preferably includes about 25-85% of the polymeric material 16 .
  • a coloring agent such as colored pigments, etc.
  • Stabilizers, antioxidants, fillers and extenders, wetting agents, bonding agents, impact modifiers as well as process aids may also be selectively adsorbed onto the exterior surface of the fiber 12 .
  • These additives are generally added to the polymeric material 16 prior to or during extrusion, but adsorbing these additives onto the surface of the fiber 12 prior to extrusion provides an improved vehicle for introduction of these additives into the composite structural member 10 .
  • These additives are individually selected to enhance performance and or processing within the polymeric material 16 .
  • the method of beneficiating the fibers 12 is shown in the first portion of the process labeled “A” in FIG. 3.
  • the fibers 12 are positioned onto a screw of a continuous kneader/mixer designed to progressively knead and mix dry materials with liquid materials on a continuous basis.
  • the continuous kneader/mixer has a screw and kneading element design that does not cut, but rather only opens bundles of the fiber 12 to ensure the required aspect ratio (ratio of fiber diameter to length).
  • the preferred device is a Readco Continuous Processor, however, it will be appreciated and understood by those skilled in the art that many other single or twin-screw kneader/mixers may be used to achieve substantially similar results.
  • the suspension 14 is positioned in a holding container that feeds the suspension 14 into the kneader/mixer.
  • a metering pump capable of handing viscous liquids and emulsified materials is required. It is important that nothing breaks the emulsion or agglomerates the suspended particles.
  • the suspension 14 is then added to the fibers 12 and kneaded with the fibers 12 , as shown at step 26 .
  • Liquid additives may range from 1-10 parts of the suspension 14 to 100 parts of the fiber 12 to produce a homogeneous mixture.
  • Temperatures in the kneader/mixer during the step 26 range from 200-350 degrees Fahrenheit.
  • step 28 The adsorption of the other additives that are deposited onto the surface of the fiber 12 takes place after step 26 .
  • other additives are added as liquid concentrates or dry mixtures to the kneader/mixer. These additives are mixed and dispersed so as to be evenly deposited onto the surface of the fiber 12 . Exterior heat of approximately 350-500 degrees Fahrenheit is contained on the barrel of the kneader/mixer so that the additives and the fiber 12 are better mixed and process volatiles are removed.
  • the beneficiated fiber 12 exits the kneader/mixer and is introduced into a continuous ribbon blender, which cools and fluffs the fiber, as shown at step 30 .
  • the method of manufacturing the composite structural member 10 is shown in the second portion of the process labeled “B” in FIG. 3.
  • the composite structural member 10 is formed by positioning the beneficiated fiber 12 in an extruder at step 32 with the polymeric material 16 .
  • the extruder at step 28 melts the polymeric material 16 and mixes the polymeric material 16 with the beneficiated fiber 12 .
  • the polymeric material 16 coats the beneficiated fiber 12 and becomes imbedded with the suspension 14 .
  • the heat used to melt the polymeric material 16 further causes the blowing agent in the lumen 20 to decompose.
  • the blowing agent decomposes at a prescribed temperature governed by the catalyst.
  • the blowing agent disperses a gas, such as, nitrogen or carbon dioxide that forms bubbles in the melted polymeric material 16 . Because the lumen 20 of the beneficiated fiber 12 is adequately filled with the ingredients of the suspension 14 , the lumen 20 is preserved during extrusion to maintain the natural density of the fiber 12 .
  • a gas such as, nitrogen or carbon dioxide
  • the melted mixture of the beneficiated fiber 12 and the polymeric material 16 passes through a die to exit the extruder at step 34 .
  • the melted mixture begins to cool causing the gas to experience a pressure drop that expands the bubbles trapped by the surrounding polymeric material 16 to form the voids 18 .
  • the melted mixture may be extruded in any of a variety of pre-determined shapes as it exits the die or the melted mixture may be molded.
  • the cooled melted mixture forms the composite structural member 10 .
  • the composite structural member 10 is lightweight and has exceptional strength.
  • the composite structural member 10 is suitable for use in any of a variety of semi-structural applications including, but not limited to, decking, exterior trim profiles, railing, gazebos, cladding, moulding, and door jambs, etc.
  • the first portion “A” of the manufacturing process in FIG. 3 can be completed at a manufacturer's location while the second portion “B” of the manufacturing process may be completed at a point of service or a customer location where composite structural members 10 are formed. Since the second portion “B” of the process only requires standard extruding equipment, the beneficiated fiber 12 may be screened, classified, and packaged, and then, supplied to the customer after step 30 . The customer may then manufacture the composite structural members 10 at its location. Optionally, the entire process including both portions “A” and “B,” may be completed at the manufacturer's location according to customer specifications. Where the second portion of the process “B” is conducted at the point of service or customer location, the customer has ultimate flexibility in determining the desired polymeric ratio, color, and shape of the composite structural member 10 among other characteristics.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Nonwoven Fabrics (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
US10/269,051 2002-10-10 2002-10-10 Beneficiated fiber and composite Abandoned US20040071964A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US10/269,051 US20040071964A1 (en) 2002-10-10 2002-10-10 Beneficiated fiber and composite
CNB2003801012966A CN100522574C (zh) 2002-10-10 2003-10-10 改性纤维、复合材料及改性纤维的制造方法
JP2004543729A JP2006502296A (ja) 2002-10-10 2003-10-10 前処理された繊維およびその複合材
MXPA05003751A MXPA05003751A (es) 2002-10-10 2003-10-10 Fibra beneficiada, compuesto y metodo para su manufactura.
KR1020057006080A KR101077594B1 (ko) 2002-10-10 2003-10-10 가용화된 섬유, 그의 합성물 및 그의 제조방법
CA 2501489 CA2501489C (en) 2002-10-10 2003-10-10 Beneficiated fiber, composite and method for its manufacture
DE2003607501 DE60307501T2 (de) 2002-10-10 2003-10-10 Aufbereitete faser, verbundwerkstoff und verfahren zu deren herstellung
ES03776333T ES2266880T3 (es) 2002-10-10 2003-10-10 Fibra enriquecida, compuesto y procedimiento para su fabricacion.
PCT/US2003/032326 WO2004033199A2 (en) 2002-10-10 2003-10-10 Beneficiated fiber, composite and method for its manufacture
EP20030776333 EP1562745B1 (en) 2002-10-10 2003-10-10 Beneficiated fiber, composite and method for its manufacture
US10/684,117 US7175907B2 (en) 2002-10-10 2003-10-10 Beneficiated fiber and composite
AT03776333T ATE335600T1 (de) 2002-10-10 2003-10-10 Aufbereitete faser, verbundwerkstoff und verfahren zu deren herstellung
AU2003284102A AU2003284102A1 (en) 2002-10-10 2003-10-10 Beneficiated fiber, composite and method for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/269,051 US20040071964A1 (en) 2002-10-10 2002-10-10 Beneficiated fiber and composite

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/684,117 Continuation-In-Part US7175907B2 (en) 2002-10-10 2003-10-10 Beneficiated fiber and composite

Publications (1)

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US20040071964A1 true US20040071964A1 (en) 2004-04-15

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US10/269,051 Abandoned US20040071964A1 (en) 2002-10-10 2002-10-10 Beneficiated fiber and composite
US10/684,117 Expired - Fee Related US7175907B2 (en) 2002-10-10 2003-10-10 Beneficiated fiber and composite

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/684,117 Expired - Fee Related US7175907B2 (en) 2002-10-10 2003-10-10 Beneficiated fiber and composite

Country Status (12)

Country Link
US (2) US20040071964A1 (es)
EP (1) EP1562745B1 (es)
JP (1) JP2006502296A (es)
KR (1) KR101077594B1 (es)
CN (1) CN100522574C (es)
AT (1) ATE335600T1 (es)
AU (1) AU2003284102A1 (es)
CA (1) CA2501489C (es)
DE (1) DE60307501T2 (es)
ES (1) ES2266880T3 (es)
MX (1) MXPA05003751A (es)
WO (1) WO2004033199A2 (es)

Cited By (12)

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US20050183243A1 (en) * 2003-07-13 2005-08-25 Tinker Larry C. Fibrillation of natural fiber
US20060162879A1 (en) * 2003-07-13 2006-07-27 Tinker Larry C Compounding of fibrillated fiber
US7743567B1 (en) 2006-01-20 2010-06-29 The Crane Group Companies Limited Fiberglass/cellulosic composite and method for molding
US7913960B1 (en) 2007-08-22 2011-03-29 The Crane Group Companies Limited Bracketing system
US8074339B1 (en) 2004-11-22 2011-12-13 The Crane Group Companies Limited Methods of manufacturing a lattice having a distressed appearance
US8167275B1 (en) 2005-11-30 2012-05-01 The Crane Group Companies Limited Rail system and method for assembly
US8460797B1 (en) 2006-12-29 2013-06-11 Timbertech Limited Capped component and method for forming
CN104151737A (zh) * 2014-07-30 2014-11-19 广州亮健文具有限公司 复合材料板制法
US9562152B2 (en) 2012-10-10 2017-02-07 Cnh Industrial Canada, Ltd. Plant fiber-reinforced thermoplastic resin composition
US9650728B2 (en) 2012-10-10 2017-05-16 Cnh Industrial Canada, Ltd. Processing method for fiber material used to form biocomposite component
US9663636B2 (en) 2012-10-10 2017-05-30 Cnh Industrial Canada, Ltd. Processing method for fiber material used to form biocomposite component
US20230102696A1 (en) * 2019-12-02 2023-03-30 Hokuriku Color Foam Co., Ltd. Method for manufacturing fiber-reinforced resin structure

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Publication number Priority date Publication date Assignee Title
US7638187B2 (en) * 2003-10-10 2009-12-29 Americhem, Inc. Beneficiated fiber and composite
US20080193740A1 (en) * 2007-01-31 2008-08-14 Nesbitt Jeffrey E Composite building material and method for making composite building material
US20100285266A1 (en) * 2009-05-07 2010-11-11 New Polymer Systems, Inc. Plastic composite with earth based bio-fibers
KR101039739B1 (ko) 2010-11-11 2011-06-09 박종헌 발포수지가 함침된 재봉사 및 그를 이용한 재봉사 제조방법
KR101261415B1 (ko) 2011-02-24 2013-05-10 주식회사 오케이시오시오 자연 분해되는 와이어로프
KR101701272B1 (ko) 2015-04-29 2017-02-02 한국섬유개발연구원 광발열성능이 우수한 이성분 필라멘트 가연사의 제조방법
KR101667511B1 (ko) 2016-02-16 2016-10-18 윤지혜 의료용 실 및 의료용 실 키트
CN107524280B (zh) * 2017-09-20 2020-01-07 衢州龙威新材料股份有限公司 一种自粘宽幅发泡地毯式地板膜及其制备方法

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KR101077594B1 (ko) 2011-10-27
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WO2004033199A3 (en) 2004-06-10
MXPA05003751A (es) 2005-09-20
CN100522574C (zh) 2009-08-05
JP2006502296A (ja) 2006-01-19
US20040191494A1 (en) 2004-09-30
EP1562745A2 (en) 2005-08-17
DE60307501T2 (de) 2007-08-16
EP1562745B1 (en) 2006-08-09
AU2003284102A1 (en) 2004-05-04
US7175907B2 (en) 2007-02-13
KR20050083737A (ko) 2005-08-26
CN1703313A (zh) 2005-11-30
CA2501489A1 (en) 2004-04-22
ATE335600T1 (de) 2006-09-15
AU2003284102A8 (en) 2004-05-04
ES2266880T3 (es) 2007-03-01
DE60307501D1 (de) 2006-09-21

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