US3424828A - Gas activated treatment of elastic filaments - Google Patents

Gas activated treatment of elastic filaments Download PDF

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US3424828A
US3424828A US3424828DA US3424828A US 3424828 A US3424828 A US 3424828A US 3424828D A US3424828D A US 3424828DA US 3424828 A US3424828 A US 3424828A
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filaments
gas
hcl
yarn
spandex
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Henry E Harris
Jack G Scruggs
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Monsanto Co
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Monsanto Co
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    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/14—Chemical modification with acids, their salts or anhydrides
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • 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
    • C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/54—Non-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 welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/09—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with free halogens or interhalogen compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/80—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides
    • D06M11/81—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides with boron; with boron halides; with fluoroborates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/06—Processes in which the treating agent is dispersed in a gas, e.g. aerosols
    • 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
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • 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
    • Y10S55/00—Gas separation
    • Y10S55/05—Methods of making filter
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31728—Next to second layer of polyamide
    • Y10T428/31732—At least one layer is nylon type
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric
    • Y10T442/692—Containing at least two chemically different strand or fiber materials

Definitions

  • the present invention relates to a method for altering the physical characteristics of shaped structures of elastorneric polymers. More particularly, the invention relates to a method for imparting a permanent shape to synthetic elastic filaments.
  • spandex yarn Various processes have been employed in the past to reduce the denier of high denier elastomeric filaments, generally referred to as spandex yarn. All of these processes involve stretching the spandex to a predetermined length and subjecting the yarn to a heat treatment to heat set the yarn in its stretched condition. These heat-treatment processes, unless controlled carefully, cause harmful effects which lower the quality of the yarn. Therefore, it would be advantageous to employ a method for reducing the denier of spandex yarn without the application of heat.
  • Another object of the present invention is to affect a permanent change in the size and shape of synthetic elastic filaments such as spandex without subjecting said filaments to the harmful action of high temperatures.
  • Another object of the present invention is to provide an improved method for altering the physical properties of synthetic elastic filaments.
  • Another object of the present invention is to provide a method for imparting permanent shapes to synthetic elastic shaped articles.
  • the objects of this invention are accomplished by altering the physical characteristics of synthetic elastic filaments composed of a substantially linear segmented polyurethane elastomer which comprises applying tension on the filament in an amount sufiicient to reduce the denier thereof to a desired size and treating the filament with a gaseous activator which includes sorption and desorption of said gaseous activator.
  • the filaments may be made to retain other shapes or configurations as, for example, a crimped condition by exposure to a gaseous activator and the subsequent removal of the sorbed gas. Absorption may be carried out under conditions ranging from about 100 to 1000 mm. of Hg and 0 to 50 C.
  • the gaseous activators which may be employed with the present invention must be strong enough as Lewis acids to complex with the basic units comprising the synthetic elastic filaments.
  • Such activators include the hydrogen halides, boron trifluoride, sulfur dioxide, and chlorine.
  • Hydrogen chloride is the preferred activating gas, however, because of its faster absorption and desorption rate and comparative ease of handling in a continuous process.
  • the process of this invention is not limited to any specific type of segmented polyurethane elastomer.
  • Such elastomers are generally prepared by a process which comprises reacting a polymeric diol with an organic diisocyanate and thereafter extending with a compound containing two active hydrogen atoms.
  • the diols may be a polyether glycol such as polyalkylene ether glycols, polyalkylenearylene ether glycols, polyalkylene etherthioether glycols, and the like, or polyester glycols including polyester glycols derived from caprolactone, either with or without internal extension.
  • the diisocyanates employed are generally arylene diisocyanates and it has been found preferred to employ a para oriented symmetrical aromatic diisocyanate.
  • the chain-extending agent is a compound having two active hydrogen atoms as determined by the test described in I. Am. Chem. Soc. 49, 3181 (1927). Such compounds may be diols or diamines. Ordinarily, the diamines are preferred.
  • the reactants used in preparing such polyurethane elastomers, including the glycol, the organic diisocyanate, and the chain-extending agent, are all well known in the art. See for example, US. Patent 2,871,227 to Walter and 3,115,- 384 to Cacella et al.
  • the process may be conducted in conjunction with a spinning process which is employed to produce continuous spandex filaments.
  • the spandex filaments usually are received from the drying rolls and advanced through a sorption chamber filled with the gaseous activator.
  • the chamber should be maintained at approximately room temperature to provide uniform treating conditions and handling convenience although substantially higher or lower temperatures may be employed with somewhat less favorable results. It is desirable to maintain a pressure on the chamber of about 200 to 800 mm. of Hg but almost any pressure range may be employed where found to be convenient or practical.
  • the spandex filament containing the gas absorbed in the sorption chamber is washed in a neutral or slightly basic water bath to remove the gas. Another effective method for removing the gas is by heating to above about 50 C. Higher temperatures may be employed, but precautions should be taken against heat degradation of the filament properties.
  • Yarns treated in accordance with the process of this invention exhibit permanent changes in size or configuration and improved physical properties such as tenacity and modulus. It is thought that the gaseous activatoF disrupts the hydrogen bonds between the urethane and/or urea groups to form a complex therewith which permits molecular flow or shifting of these groups to relieve stress imposed by tension or pressure on the filamentary structure. The complex formation is reversible and therefore the filamentary structure will assume permanently the '2 a shape possessed at the time the gaseous activator is removed.
  • EXAMPLE I In the preparation of sample yarn for illustrating certain aspects of the invention, 3990 grams of a polyester diol having a molecular weight of 2838 prepared from 3 moles of polycaprolactone of molecular weight 830 internally extended with 348 grams of tolylene diisocyanate, was dissolved in dimethylformamide with 735 grams p,p-methylenedi(phenyl isocyanate) to form a prepolymer solution having a solids content of about 65 percent. A second solution was prepared by adding 30.1 grams of ethylenediamine to 8370 grams of dimethylformamide. The first solution was added to the second solution with agitation while maintaining the temperature at 45 C.
  • a sample of the yarn was suspended on a Worden fused quartz spring in a gaseous sorption apparatus.
  • the sysl tern was evacuated to 0.5 mm. of Hg. After one hour the system was filled to atmospheric pressure with anhydrous hydrogen chloride (HCl) gas at 25 C. The increase in weight of the spandex sample was followed by the elongation of the spring.
  • HCl hydrogen chloride
  • the sorption apparatus was subjected to evacuation until the pressure of HCl was reduced to 286 mm. of Hg. After three minutes the spandex retained only 6.1 percent weight gain of HCl. This value agrees reasonably well with the value of 7 percent weight gain found by approaching this HCl pressure from the low side. Thus, it can be concluded that the amount of sorbed gas is dependent upon the pressure employed in the chamber during exposure.
  • weight-supporting yarn began to elongate, rapidly reaching a maximum value depending on the supported weight. For example, a sample of yarn supporting 100 grams stretched to 4.5 inches in air, but in an atmosphere of HCI stretched to inches. Additional results are shown by the curves plotted in FIGURE 1. These data illustrate that the yarn stretches more readily when exposed to the gaseous activator.
  • a process for permanently reducing the denier of synthetic elastic segmented polyurethane filaments which comprises attenuating said filaments, exposing said filaments to an atmosphere of an activating gas and then desorbing said gas from said filaments.
  • a process for permanently reducing the denier of a synthetic elastic filament composed of a substantially linear segmented polyurethane elastomer which comprises applying tension to said filaments sufficient to reduce the denier a predetermined amount, exposing the filament to an atmosphere of an activating gas while under said tension wherein gas is absorbed by said filament, and thereafter desorbing said gas from the filaments.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Coloring (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Artificial Filaments (AREA)
US3424828D 1966-02-16 1966-09-13 Gas activated treatment of elastic filaments Expired - Lifetime US3424828A (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US52869966A 1966-02-16 1966-02-16
US57946166A 1966-09-13 1966-09-13
US58742166A 1966-10-18 1966-10-18
US58750666A 1966-10-18 1966-10-18
US73750768A 1968-05-17 1968-05-17
NL6809209A NL6809209A (de) 1966-02-16 1968-06-28
AT626368A AT303673B (de) 1966-02-16 1968-06-28 Autogen gebundener Gegenstand und Verfahren zur Herstellung desselben
DE19681769697 DE1769697A1 (de) 1966-02-16 1968-06-29 Autogen gebundener linearer Polyamidgegenstand und ein biegsamer ungewebter Stoff sowie Verfahren zu deren Herstellung
CH980568 1968-07-01
GB3293068A GB1248232A (en) 1966-02-16 1968-07-10 Improvements in and relating to the bonding of polyamides and polyurethanes
AU42141/68A AU439571B2 (en) 1966-02-16 1968-08-15 Production of fabrics and nonwoven sheet material or other shaped articles from polyamide materials by means ofa gaseous bonding medium
US83959169A 1969-07-07 1969-07-07
US20395771A 1971-12-02 1971-12-02

Publications (1)

Publication Number Publication Date
US3424828A true US3424828A (en) 1969-01-28

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Application Number Title Priority Date Filing Date
US3424828D Expired - Lifetime US3424828A (en) 1966-02-16 1966-09-13 Gas activated treatment of elastic filaments
US3516900D Expired - Lifetime US3516900A (en) 1966-02-16 1968-06-17 Gas activated bonding of polyamides
US3573133D Expired - Lifetime US3573133A (en) 1966-02-16 1969-07-07 Surface modifications of organic synthetic polyamides using sulfur trioxide
US3798104D Expired - Lifetime US3798104A (en) 1966-02-16 1971-12-02 Gas activated bonding of undrawn polyamide articles

Family Applications After (3)

Application Number Title Priority Date Filing Date
US3516900D Expired - Lifetime US3516900A (en) 1966-02-16 1968-06-17 Gas activated bonding of polyamides
US3573133D Expired - Lifetime US3573133A (en) 1966-02-16 1969-07-07 Surface modifications of organic synthetic polyamides using sulfur trioxide
US3798104D Expired - Lifetime US3798104A (en) 1966-02-16 1971-12-02 Gas activated bonding of undrawn polyamide articles

Country Status (9)

Country Link
US (4) US3424828A (de)
AT (1) AT303673B (de)
AU (1) AU439571B2 (de)
BE (1) BE717184A (de)
CH (2) CH526665A (de)
DE (1) DE1769697A1 (de)
GB (1) GB1248232A (de)
LU (1) LU56362A1 (de)
NL (1) NL6809209A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992221A (en) * 1975-10-23 1976-11-16 Vitek, Inc. Method of treating extensible hydrocarbon articles
US5616675A (en) * 1995-02-08 1997-04-01 Kenneth Wilkinson Process of preparing elastomeric thread
US7015299B2 (en) * 2001-04-30 2006-03-21 Wilkinson W Kenneth Melt spun thermoplastic polyurethanes useful as textile fibers

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607543A (en) * 1969-03-21 1971-09-21 Philip J Stevenson Process for forming lightweight nylon nonwoven web
US3775213A (en) * 1970-05-28 1973-11-27 Celanese Corp Production of lightweight polybenzimidazole insulative material
US3901755A (en) * 1972-05-24 1975-08-26 Cons Bathurst Ltd Bonding of polymers by surface activation
US3853659A (en) * 1972-12-29 1974-12-10 Monsanto Co Method for improving the bonding of nylon filaments by the use of a hydrogen halide gas
US4168195A (en) * 1976-04-15 1979-09-18 Monsanto Company Method of autogenously bonding a nonwoven polyamide web
NL7703952A (nl) * 1976-04-15 1977-10-18 Monsanto Co Werkwijze voor het binden of hechten van een niet geweven baan of vel, alsmede het produkt van deze werkwijze.
US4396452A (en) * 1978-12-21 1983-08-02 Monsanto Company Process for point-bonding organic fibers
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AU439571B2 (en) 1973-08-02
US3516900A (en) 1970-06-23
US3573133A (en) 1971-03-30
US3798104A (en) 1974-03-19
CH526665A (fr) 1972-08-15
LU56362A1 (de) 1969-04-25
AT303673B (de) 1972-12-11
CH980568A4 (de) 1972-02-29
AU4214168A (en) 1970-02-19
BE717184A (de) 1968-12-27
NL6809209A (de) 1969-12-30
DE1769697A1 (de) 1971-11-04
GB1248232A (en) 1971-09-29

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