EP3202976A1 - Suede type artificial leather with antifouling property, and preparation method therefor - Google Patents
Suede type artificial leather with antifouling property, and preparation method therefor Download PDFInfo
- Publication number
- EP3202976A1 EP3202976A1 EP15846907.2A EP15846907A EP3202976A1 EP 3202976 A1 EP3202976 A1 EP 3202976A1 EP 15846907 A EP15846907 A EP 15846907A EP 3202976 A1 EP3202976 A1 EP 3202976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluorine
- artificial leather
- terminals
- modified polyurethane
- containing modified
- 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
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- 239000002649 leather substitute Substances 0.000 title claims abstract description 55
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 21
- 239000011737 fluorine Substances 0.000 claims abstract description 68
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 68
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229920002635 polyurethane Polymers 0.000 claims abstract description 56
- 239000004814 polyurethane Substances 0.000 claims abstract description 56
- 229920001971 elastomer Polymers 0.000 claims abstract description 24
- 239000000806 elastomer Substances 0.000 claims abstract description 24
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 23
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims abstract description 19
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 claims abstract description 18
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 14
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 13
- 150000002009 diols Chemical class 0.000 claims abstract description 13
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 13
- 229920001410 Microfiber Polymers 0.000 claims abstract description 8
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 ether diol Chemical class 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 5
- 229920003225 polyurethane elastomer Polymers 0.000 abstract description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 42
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 35
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 14
- 238000012644 addition polymerization Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007787 solid Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000005470 impregnation Methods 0.000 description 9
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 7
- 239000000654 additive Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000005871 repellent Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000003673 urethanes Chemical class 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- UFZOPKFMKMAWLU-UHFFFAOYSA-N ethoxy(methyl)phosphinic acid Chemical compound CCOP(C)(O)=O UFZOPKFMKMAWLU-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using flocked webs or pile fabrics upon which a resin is applied; Teasing, raising web before resin application
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0075—Napping, teasing, raising or abrading of the resin coating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/126—Permeability to liquids, absorption
- D06N2209/128—Non-permeable
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/142—Hydrophobic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/146—Soilproof, soil repellent
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/147—Stainproof, stain repellent
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
-
- 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
- Y10S428/904—Artificial leather
Definitions
- the present invention relates to a suede type artificial leather having antifouling properties, and more particularly to a simple method of preparing an artificial leather impregnated with a modified polyurethane having an antifouling property, which the addition of an additive having an antifouling function is not needful.
- Artificial leather is prepared by impregnating a polymer elastomer in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers.
- the artificial leather has a smooth texture and unique appearance which is similar to natural leather and is widely used in various fields such as shoes, clothes, gloves, miscellaneous goods, furniture and automobile interior materials.
- Artificial leather requires various characteristics according to its use.
- the properties required for artificial leather for clothing include high durability, high sensitivity, excellent dyeability which can be stained with various colors and concentrations and high fastness.
- artificial leather is required to be provided with an antifouling function including a water-repellent and oil-repellent function for inhibiting the occurrence of fouling even after a long-term use.
- a fluorine-based or silicone-based surfactant can be mixed with polyurethane and a mixture can be impregnated in a nonwoven fabric, thereby arranging a fluorine chain or a silicone chain on the surface of the artificial leather. The occurrence of fouling can be suppressed from the outside of the artificial leather accordingly.
- fluorine-based or silicone-based surfactants are generally inactive additives, and in case that they are mixed with polyurethane, there is a problem that they are not chemically bonded to each other, thus they are free to move in the urethane molecular structure and as a result, transition of the surfactants to the surface of artificial leather occurs causing a surface change with the passage of time thereof.
- Korean Patent No. 0969839 discloses a modified urethane to which fluorine is bonded and a method of preparing leathery sheet object using the modified urethane without the addition of a fluorine-based compound.
- the urethane compound modified with fluorine-containing side chain is used together with polyurethane which is an elastomer constituting the treatment liquid of a leathery sheet object, and exhibits an effect as a water-repellent agent as an additive.
- an object of the present invention is to provide artificial leather impregnated with a novel modified polyurethane, having an antifouling property without adding an additive having an antifouling property.
- an aspect of the present invention provides a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000.
- Mw weight average molecular weight
- the present invention also provides a method of preparing a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is prepared by a method comprising: preparing a urethane prepolymer having a weight average molecular weight (Mw) of 400,000 to 700,000 by reacting a diol and a diisocyanate; and preparing a polymerization product having a weight average molecular weight (Mw) of 500,000 to 800,000 by reacting the prepolymer and a fluorinated carbon compound having hydroxy functional groups at both terminals.
- Mw weight average molecular weight
- artificial leather impregnated with a fluorine-containing modified polyurethane elastomer having antifouling property also exhibits excellent water repellency in addition to the antifouling property.
- the artificial leather of the present invention can decrease the surface change with the passage of time, as compared with artificial leather produced by separately adding a fluorine-containing surfactant having the large occurrence of surface change with the passage of time due to the migration of the surfactant.
- the present invention relates to a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane.
- the fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals and a weight average molecular weight (Mw) of 400,000 to 700,000, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000.
- the diol may be used alone or in combination with diols such as 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, ethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol or polytetramethylene glycol.
- diols such as 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, ethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol or polytetramethylene glycol.
- the diisocyanate may be 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate, 1,12-dodecamethylene diisocyanate, cyclohexane-1,3- to 1,4-diisocyanate, 1-isocyanate-3-isocyanatemethyl-3,5,5-trimethylcyclohexane(isophorone diisocyanate), bis-(4-isocyanatecyclohexyl) methane(hydrogenated MDI), 2- to 4-isocyanatecyclohexyl-2-isocyanatecyclohexylmethane, 1,3- to 1,4-tetramethylxylene diisocyanate, 2,4-to 2,6-diisocyanate toluene, 2,2-2,4- to 4,4'-diphenylmethane diisocyanate , 1,5-naphthalene diisocyanate, xylene diisocyanate or diphenyl-4,
- the proportion to be reacted needs an excess amount of all NCO groups rather than all OH groups.
- the resulting urethane prepolymer may have an isocyanate group terminal in side chains thereof.
- the molar ratio of the diol and the diisocyanate is preferably 1:1.2 to 1:1.4 because the fluorine-containing modified polyurethane having the weight average molecular weight range of the present invention can be produced.
- the molar ratio When the molar ratio is less than 1:1.2, a side reaction occurs due to moisture or active hydrogen, etc. in the air, or the isocyanate reacts with each other to manifest a property of isocyanate for forming a trimer and to decrease the polymerization efficiency due to the increase of inactive NCO.
- the molar ratio is more than 1:1.4, the excess of NCO groups causes an insufficient OH group so that it is difficult to raise the degree of polymerization.
- a urethane prepolymer can be prepared first.
- the weight average molecular weight (Mw) of the urethane prepolymer is less than 400,000, the molecular weight of the fluorine-containing modified polyurethane is lowered, and the mechanical properties such as tear strength, etc. and the chemical properties such as thermal stability and hydrolysis resistance, etc. are lowered. If it exceeds 700,000, the gelation phenomenon may occur in the production of the fluorine-containing modified polyurethane, and the viscosity of the fluorine-containing modified polyurethane may be high to reduce the workability in blending of an elastomer impregnation solution, and the resulting fluorine-containing modified polyurethane may be hardened, which may deteriorate the sensual quality in artificial leather.
- the fluorinated carbon compound having hydroxy functional groups at both terminals is represented by the following Chemical Formula 1, has 8 to 14 fluorine groups bonded to one side chain and fluorine content of 50 to 70mol% in one functional group and is an ether diol having hydroxy functional groups at both terminals.
- Chemical Formula 1 HO-CH 2 -CF 2 -O- (CF 2 CF 2 O) m- (CF 2 O) n-CF 2 -CH 2 -OH
- the fluorine-containing modified polyurethane obtained by reacting the ether diol of the Chemical Formula 1 with the urethane prepolymer can provide water-repellent and oil-repellent functions because the fluorine which is present as the diatomic molecule in the element state, in the side chain of the urethane polymer is bonded to prevent that the modified polyurethane is bonded to other atoms or molecules.
- the fluorine-containing modified polyurethane of the present invention the artificial leather can be suppressed deposition of an external contaminant and easily removed contaminants on the coated surface.
- a commercialized product of a fluorinated carbon compound having hydroxy functional groups at both terminals is Solvay's FLUOROLINK.
- the polymerization of the fluorine-containing modified polyurethane of the present invention can be carried out through the addition-polymerization by adding dropwise the fluorinated carbon compound having hydroxy functional groups at both terminals to the urethane prepolymer until the desirable molecular weight is reached. At this time, the addition amount of the fluorinated carbon compound corresponds to the moles of excess isocyanate in preparing the urethane prepolymer.
- the fluorine-containing modified polyurethane of the present invention is polymerized by the above-mentioned method and is characterized by having a weight average molecular weight (Mw) of 500,000 to 800,000. If the weight average molecular weight (Mw) is less than 500,000, the mechanical strength such as tear strength, etc. and chemical properties such as thermal stability, hydrolysis resistance, and the like in artificial leather may be reduced.
- Mw weight average molecular weight
- the viscosity of the fluorine-containing modified polyurethane may be high to reduce the workability in blending of an elastomer impregnation solution, and the resulting fluorine-containing modified polyurethane may be hardened, which may deteriorate the sensual quality in artificial leather.
- the fluorine-containing modified polyurethane of the present invention has a fluorine content of 5 to 20mol%.
- the content is less than 5mol%, the antifouling performance is insufficient, and when the content is more than 20mol%, the water repellency is too strong so that the fluorine-containing modified polyurethane cannot undergo the substitution solidification in the manufacturing process of the artificial leather.
- R and R' are each independently an alkyl group.
- artificial leather can be prepared by immersing a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers in an impregnating liquid comprising a polymeric elastomer such as polyurethane, impregnating the polymeric elastomer to solidify the elastomer in the nonwoven fabric, raising by grinding and dyeing.
- an impregnating liquid comprising a polymeric elastomer such as polyurethane
- the fluorine-containing modified polyurethane of the present invention can be used as a polymeric elastomer of the impregnating liquid.
- the fluorine-containing modified polyurethane may be used as an impregnating liquid by diluting it in dimethyl formamide of 100 to 200wt% in respect of the weight of the fluorine-containing modified polyurethane.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.2mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 700,000.
- the prepared prepolymer was subjected to addition polymerization with 0.2mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain (trade name: FLUOROLINK D10-H, manufactured by Solvay, Mw: 1,400) and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 800,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.3mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 600,000.
- the prepared prepolymer was subjected to addition polymerization with 0.3mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain (trade name: FLUOROLINK D10-H, manufactured by Solvay, Mw: 1,400) and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 700,000.
- a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain trade name: FLUOROLINK D10-H, manufactured by Solvay, Mw: 1,400
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.4mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 400,000.
- the prepared prepolymer was subjected to addition polymerization with 0.4mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 500,000.
- Mw weight average molecular weight
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.0mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 70% by weight to prepare a reaction-terminated polyurethane having a weight average molecular weight (Mw) of 700,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.7mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 350,000.
- the prepared prepolymer was subjected to addition polymerization with 0.7mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 450,000.
- Mw weight average molecular weight
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.0mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 70% by weight to prepare a reaction-terminated polyurethane having a weight average molecular weight (Mw) of 700,000.
- the fluorine-containing modified polyurethane of the Preparation Example 1 was diluted with 150% by weight of dimethylformamide in respect of the weight of the polyurethane to prepare an impregnating liquid.
- the nonwoven fabric in which the polyester fibers (0.3 denier, fiber length: 51 mm) was entangled was immersed in the impregnation solution, taken out and carried out coagulating process in an aqueous solution diluted with 20% by weight of dimethylformamide to form the fluorine-containing modified polyurethane elastomer impregnated nonwoven fabric in which a fine porous layer was formed in the fiber structure.
- a suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 2 was used to prepare an impregnation solution.
- a suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 3 was used to prepare an impregnation solution.
- a suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 4 was used to prepare an impregnation solution.
- a suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 5 was used to prepare an impregnation solution.
- a suede type artificial leather was produced in the same manner as in Example 1, except that the reaction-terminated polyurethane of Preparation Example 6 is diluted with a mixture of 150% by weight of dimethylformamide and 0.5% of a fluorine-based surfactant (trade name FC-4430, 3M) with respect of the weight of the polyurethane, to prepare an impregnation solution.
- a fluorine-based surfactant trade name FC-4430, 3M
- the weight average molecular weights (Mw) of the polymer prepared in the above Examples and Comparative Examples were measured using gel permeation chromatography (GPC) (RI-8000, manufactured by Tosoh Corporation) passing through the column connected TSKgel super HM-L, TSKgel super HM-M and TSKgel super HM-N (tosoh) in series with tetrahydrofuran (flow rate: 1 mL/min) as a mobile phase and the column oven at temperature of 40°C.
- GPC gel permeation chromatography
- An artificial leather sample was cut into a size of 5x15cm and placed in a rubbing fastness tester (model name DL-2007) and a test fabric (product name: IEC carbon black/mineral oil, manufactured by EMPA) was placed on the surface of the fouled sample and rubbed by 10 times reciprocating motion, and the fouled sample was visually compared to give a fouling degree.
- a rubbing fastness tester model name DL-2007
- a test fabric product name: IEC carbon black/mineral oil, manufactured by EMPA
- the artificial leather of the Example according to the present invention in which the fluorine-containing modified polyurethane is impregnated as an elastomer has the same antifouling performance as the artificial leather (Comparative Example 3) in which the fluorine-containing surfactant was separately added, and exhibits improved water repellency at the same time.
- the artificial leather according to the present invention is an artificial leather in which a fluorine-containing modified polyurethane having an antifouling property is impregnated.
- the fluorine-containing surfactant does not need separately for the antifouling property during the production of artificial leather so that productivity increase is possible.
- the artificial leather according to the present invention exhibits an excellent antifouling performance that suppresses the surface change with the passage of time of the artificial leather caused by using a fluorine-containing surfactant, thereby improving the appearance quality of the artificial leather.
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Abstract
Description
- The present invention relates to a suede type artificial leather having antifouling properties, and more particularly to a simple method of preparing an artificial leather impregnated with a modified polyurethane having an antifouling property, which the addition of an additive having an antifouling function is not needful.
- Artificial leather is prepared by impregnating a polymer elastomer in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers. The artificial leather has a smooth texture and unique appearance which is similar to natural leather and is widely used in various fields such as shoes, clothes, gloves, miscellaneous goods, furniture and automobile interior materials.
- Artificial leather requires various characteristics according to its use. For example, the properties required for artificial leather for clothing include high durability, high sensitivity, excellent dyeability which can be stained with various colors and concentrations and high fastness.
- In order to improve the durability among these demand characteristics, artificial leather is required to be provided with an antifouling function including a water-repellent and oil-repellent function for inhibiting the occurrence of fouling even after a long-term use.
- To provide an antifouling property to artificial leather, a fluorine-based or silicone-based surfactant can be mixed with polyurethane and a mixture can be impregnated in a nonwoven fabric, thereby arranging a fluorine chain or a silicone chain on the surface of the artificial leather. The occurrence of fouling can be suppressed from the outside of the artificial leather accordingly.
- However, fluorine-based or silicone-based surfactants are generally inactive additives, and in case that they are mixed with polyurethane, there is a problem that they are not chemically bonded to each other, thus they are free to move in the urethane molecular structure and as a result, transition of the surfactants to the surface of artificial leather occurs causing a surface change with the passage of time thereof.
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Korean Patent No. 0969839 - According to the patent, a urethane compound modified with fluorine-containing side chain in which
- (i) 3 to 12 fluorine-containing side chains having a molecular weight of 200 to 1,000 are bonded to a urethane bond-containing compound having a molecular weight of 500 to 5,000
- (ii) the fluorine content is 20 to 60 weight% in terms of fluorine atoms, and
- (iii) containing 6 to 36 urethane bonds per a molecule,
- However, according to the patent, the urethane compound modified with fluorine-containing side chain is used together with polyurethane which is an elastomer constituting the treatment liquid of a leathery sheet object, and exhibits an effect as a water-repellent agent as an additive.
- On the other hand, the development of providing an antifouling effect by an elastomer impregnated in artificial leather without adding an antifouling additive is progressing.
- To solve the above problems, an object of the present invention is to provide artificial leather impregnated with a novel modified polyurethane, having an antifouling property without adding an additive having an antifouling property.
- To achieve the object of the present invention, an aspect of the present invention provides a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000.
- The present invention also provides a method of preparing a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is prepared by a method comprising: preparing a urethane prepolymer having a weight average molecular weight (Mw) of 400,000 to 700,000 by reacting a diol and a diisocyanate; and preparing a polymerization product having a weight average molecular weight (Mw) of 500,000 to 800,000 by reacting the prepolymer and a fluorinated carbon compound having hydroxy functional groups at both terminals.
- According to the present invention, artificial leather impregnated with a fluorine-containing modified polyurethane elastomer having antifouling property also exhibits excellent water repellency in addition to the antifouling property.
- In addition, the artificial leather of the present invention can decrease the surface change with the passage of time, as compared with artificial leather produced by separately adding a fluorine-containing surfactant having the large occurrence of surface change with the passage of time due to the migration of the surfactant.
- Further, since the separate addition of the fluorine-based surfactant is not required, the manufacture method can be simplified.
-
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Figure 1 illustrates a polymerization reaction scheme of a fluorine-containing modified polyurethane according to an embodiment of the present invention. -
Figure 2 shows a drawing of an apparatus for evaluating water repellency of the artificial leather. -
Figure 3 is a rating criterion for the water repellency evaluation. - The present invention relates to a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane.
- The fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals and a weight average molecular weight (Mw) of 400,000 to 700,000, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000.
- The diol may be used alone or in combination with diols such as 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, ethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol or polytetramethylene glycol.
- The diisocyanate may be 1,4-tetramethylene diisocyanate, 1,6-hexamethylene diisocyanate, 1,12-dodecamethylene diisocyanate, cyclohexane-1,3- to 1,4-diisocyanate, 1-isocyanate-3-isocyanatemethyl-3,5,5-trimethylcyclohexane(isophorone diisocyanate), bis-(4-isocyanatecyclohexyl) methane(hydrogenated MDI), 2- to 4-isocyanatecyclohexyl-2-isocyanatecyclohexylmethane, 1,3- to 1,4-tetramethylxylene diisocyanate, 2,4-to 2,6-diisocyanate toluene, 2,2-2,4- to 4,4'-diphenylmethane diisocyanate , 1,5-naphthalene diisocyanate, xylene diisocyanate or diphenyl-4,4-diisocyanate, and the like, but are not limited thereto.
- In the present invention, when the diol is reacted with the diisocyanate, the proportion to be reacted needs an excess amount of all NCO groups rather than all OH groups. By adjusting the ratio of the diol and the diisocyanate to react as such, the resulting urethane prepolymer may have an isocyanate group terminal in side chains thereof.
- At this time, the molar ratio of the diol and the diisocyanate is preferably 1:1.2 to 1:1.4 because the fluorine-containing modified polyurethane having the weight average molecular weight range of the present invention can be produced.
- When the molar ratio is less than 1:1.2, a side reaction occurs due to moisture or active hydrogen, etc. in the air, or the isocyanate reacts with each other to manifest a property of isocyanate for forming a trimer and to decrease the polymerization efficiency due to the increase of inactive NCO. When the molar ratio is more than 1:1.4, the excess of NCO groups causes an insufficient OH group so that it is difficult to raise the degree of polymerization.
- In order to ensure the mechanical properties required in case that the fluorine-containing modified polyurethane of the present invention is applied to artificial leather, it is necessary to increase the polymerization molecular weight to an appropriate level easily and to do so, a urethane prepolymer can be prepared first.
- If the weight average molecular weight (Mw) of the urethane prepolymer is less than 400,000, the molecular weight of the fluorine-containing modified polyurethane is lowered, and the mechanical properties such as tear strength, etc. and the chemical properties such as thermal stability and hydrolysis resistance, etc. are lowered. If it exceeds 700,000, the gelation phenomenon may occur in the production of the fluorine-containing modified polyurethane, and the viscosity of the fluorine-containing modified polyurethane may be high to reduce the workability in blending of an elastomer impregnation solution, and the resulting fluorine-containing modified polyurethane may be hardened, which may deteriorate the sensual quality in artificial leather.
- The fluorinated carbon compound having hydroxy functional groups at both terminals is represented by the following Chemical Formula 1, has 8 to 14 fluorine groups bonded to one side chain and fluorine content of 50 to 70mol% in one functional group and is an ether diol having hydroxy functional groups at both terminals.
[Chemical Formula 1] HO-CH2-CF2-O- (CF2CF2O) m- (CF2O) n-CF2-CH2-OH
- The fluorine-containing modified polyurethane obtained by reacting the ether diol of the
Chemical Formula 1 with the urethane prepolymer can provide water-repellent and oil-repellent functions because the fluorine which is present as the diatomic molecule in the element state, in the side chain of the urethane polymer is bonded to prevent that the modified polyurethane is bonded to other atoms or molecules. Thus, by the fluorine-containing modified polyurethane of the present invention, the artificial leather can be suppressed deposition of an external contaminant and easily removed contaminants on the coated surface. - A commercialized product of a fluorinated carbon compound having hydroxy functional groups at both terminals is Solvay's FLUOROLINK.
- The polymerization of the fluorine-containing modified polyurethane of the present invention can be carried out through the addition-polymerization by adding dropwise the fluorinated carbon compound having hydroxy functional groups at both terminals to the urethane prepolymer until the desirable molecular weight is reached. At this time, the addition amount of the fluorinated carbon compound corresponds to the moles of excess isocyanate in preparing the urethane prepolymer.
- When a fluorinated carbon compound having hydroxy functional groups at both terminals is added at a time, the fluorinated carbon compound is partially bound to the urethane prepolymer, so that the dispersion of the fluorine groups in the fluorine-containing modified polyurethane becomes insufficient and as a result it is difficult to develop the uniform antifouling performance. Therefore, it is preferable to slowly add dropwise.
- The fluorine-containing modified polyurethane of the present invention is polymerized by the above-mentioned method and is characterized by having a weight average molecular weight (Mw) of 500,000 to 800,000. If the weight average molecular weight (Mw) is less than 500,000, the mechanical strength such as tear strength, etc. and chemical properties such as thermal stability, hydrolysis resistance, and the like in artificial leather may be reduced. When the weight average molecular weight (Mw) is more than 800,000, the viscosity of the fluorine-containing modified polyurethane may be high to reduce the workability in blending of an elastomer impregnation solution, and the resulting fluorine-containing modified polyurethane may be hardened, which may deteriorate the sensual quality in artificial leather.
- It is preferable that the fluorine-containing modified polyurethane of the present invention has a fluorine content of 5 to 20mol%. When the content is less than 5mol%, the antifouling performance is insufficient, and when the content is more than 20mol%, the water repellency is too strong so that the fluorine-containing modified polyurethane cannot undergo the substitution solidification in the manufacturing process of the artificial leather.
-
- Here, R and R' are each independently an alkyl group.
- Generally, artificial leather can be prepared by immersing a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers in an impregnating liquid comprising a polymeric elastomer such as polyurethane, impregnating the polymeric elastomer to solidify the elastomer in the nonwoven fabric, raising by grinding and dyeing.
- In the present invention, the fluorine-containing modified polyurethane of the present invention can be used as a polymeric elastomer of the impregnating liquid. The fluorine-containing modified polyurethane may be used as an impregnating liquid by diluting it in dimethyl formamide of 100 to 200wt% in respect of the weight of the fluorine-containing modified polyurethane.
- The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.2mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 700,000.
- The prepared prepolymer was subjected to addition polymerization with 0.2mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain (trade name: FLUOROLINK D10-H, manufactured by Solvay, Mw: 1,400) and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 800,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.3mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 600,000.
- The prepared prepolymer was subjected to addition polymerization with 0.3mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain (trade name: FLUOROLINK D10-H, manufactured by Solvay, Mw: 1,400) and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 700,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.4mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 400,000.
- The prepared prepolymer was subjected to addition polymerization with 0.4mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 500,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.0mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 70% by weight to prepare a reaction-terminated polyurethane having a weight average molecular weight (Mw) of 700,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.7mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 40% by weight to prepare an NCO-terminated polyurethane prepolymer having a weight average molecular weight (Mw) of 350,000.
- The prepared prepolymer was subjected to addition polymerization with 0.7mol of a fluorinated carbon compound having hydroxy functional groups at both terminals in a side chain and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 30% by weight to prepare a fluorine-containing modified polyurethane having a weight average molecular weight (Mw) of 450,000.
- Polytetramethylene glycol (Mw: 1,500-2,500) of 0.45mol, ethylene glycol of 0.47mol and 1,4-butanediol of 0.08mol were subjected to addition polymerization with 1.0mol of 4,4'-diphenylmethane diisocyanate, and the produced polymerization product was diluted and dissolved in dimethylformamide so as to be a total solid content of 70% by weight to prepare a reaction-terminated polyurethane having a weight average molecular weight (Mw) of 700,000.
- The fluorine-containing modified polyurethane of the Preparation Example 1 was diluted with 150% by weight of dimethylformamide in respect of the weight of the polyurethane to prepare an impregnating liquid.
- The nonwoven fabric in which the polyester fibers (0.3 denier, fiber length: 51 mm) was entangled was immersed in the impregnation solution, taken out and carried out coagulating process in an aqueous solution diluted with 20% by weight of dimethylformamide to form the fluorine-containing modified polyurethane elastomer impregnated nonwoven fabric in which a fine porous layer was formed in the fiber structure.
- Thereafter, a suede type artificial leather was produced by raising finishing on the surface of the elastomer impregnated nonwoven fabric.
- A suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 2 was used to prepare an impregnation solution.
- A suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 3 was used to prepare an impregnation solution.
- A suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 4 was used to prepare an impregnation solution.
- A suede type artificial leather was produced in the same manner as in Example 1, except that the fluorine-containing modified polyurethane of Preparation Example 5 was used to prepare an impregnation solution.
- A suede type artificial leather was produced in the same manner as in Example 1, except that the reaction-terminated polyurethane of Preparation Example 6 is diluted with a mixture of 150% by weight of dimethylformamide and 0.5% of a fluorine-based surfactant (trade name FC-4430, 3M) with respect of the weight of the polyurethane, to prepare an impregnation solution.
- The weight average molecular weights (Mw) of the polymer prepared in the above Examples and Comparative Examples were measured using gel permeation chromatography (GPC) (RI-8000, manufactured by Tosoh Corporation) passing through the column connected TSKgel super HM-L, TSKgel super HM-M and TSKgel super HM-N (tosoh) in series with tetrahydrofuran (flow rate: 1 mL/min) as a mobile phase and the column oven at temperature of 40°C.
- The raw material composition ratio for the polymerization in the above Preparation Examples and the weight average molecular weight of the polymerization product are shown in the following Table 1.
[Table 1] Preparation Example 1 Preparation Example 2 Preparation Example 3 Preparation Example 4 Preparation Example 5 Preparation Example 6 diol 1 mol 1 mol 1 mol 1 mol 1 mol 1 mol Diisocyanate 1.2 mol 1.3 mol 1.4 mol 1 mol 1.7 mol 1 mol prepolymer 700,000 600,000 400,000 700,000 350,000 700,000 FLUOROLINK D10-H 0.2 mol 0.3 mol 0.4 mol - 0.7 mol - Fluorine-containing modified polyurethane 800,000 700,000 500,000 - 450,000 - surfactant (FC-4430) - - - - - 0.5% The value of the surfactant is that in elastomer impregnation solution. - The properties of the artificial leather prepared in the above Examples and Comparative Examples were evaluated according to the following antifouling property evaluation method, and the results are shown in Table 2 below.
- An artificial leather sample was cut into a size of 5x15cm and placed in a rubbing fastness tester (model name DL-2007) and a test fabric (product name: IEC carbon black/mineral oil, manufactured by EMPA) was placed on the surface of the fouled sample and rubbed by 10 times reciprocating motion, and the fouled sample was visually compared to give a fouling degree.
- 5: no visible fouling, 4: slightly visible but almost inconspicuous fouling, 3: slightly fouled and visible, 2: slightly severe fouling, 1: significant fouling)
- The artificial leather sample was fixed (diameter 10cm) as shown in
Figure 2 and then tilted at an angle of 45°. Then, 100ml of water was injected into the spray-type funnel located at the upper part, and the degree of distribution of the water droplets on the surface of the sample after the completion of the spraying was observed to give a rating according toFigure 3 .[Table 2] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Fouling grade 3.5 3.5 3.5 2.0 2.5 3.5 Water repellency rating 3.5 4.0 4.5 2.5 3.0 2.5 - As shown in the above Table 2, it can be confirmed that, the artificial leather of the Example according to the present invention, in which the fluorine-containing modified polyurethane is impregnated as an elastomer has the same antifouling performance as the artificial leather (Comparative Example 3) in which the fluorine-containing surfactant was separately added, and exhibits improved water repellency at the same time.
- The artificial leather according to the present invention is an artificial leather in which a fluorine-containing modified polyurethane having an antifouling property is impregnated. The fluorine-containing surfactant does not need separately for the antifouling property during the production of artificial leather so that productivity increase is possible. The artificial leather according to the present invention exhibits an excellent antifouling performance that suppresses the surface change with the passage of time of the artificial leather caused by using a fluorine-containing surfactant, thereby improving the appearance quality of the artificial leather.
- Although the present invention has been described in detail with reference to the specific features, it will be apparent to those skilled in the art that this description is only for a preferred embodiment and does not limit the scope of the present invention. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.
Claims (6)
- A suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed,
wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and
the fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000. - The suede type artificial leather having antifouling property according to claim 1, wherein the urethane prepolymer has a weight average molecular weight (Mw) of 400,000 to 700,000.
- The suede type artificial leather having antifouling property according to claim 1, wherein the fluorinated carbon compound having hydroxy functional groups at both terminals, has 8 to 14 fluorine groups bonded to one side chain and fluorine content of 50 to 70mol% in one functional group and is an ether diol having hydroxy functional groups at both terminals.
- A method of preparing a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed,
wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is prepared by a method comprising:preparing a urethane prepolymer having a weight average molecular weight (Mw) of 400,000 to 700,000 by reacting a diol and a diisocyanate; andpreparing a polymerization product having a weight average molecular weight (Mw) of 500,000 to 800,000 by reacting the prepolymer and a fluorinated carbon compound having hydroxy functional groups at both terminals. - The method of preparing a suede type artificial leather according to claim 4, wherein the diol and the diisocyanate is reacted at a molar ratio of 1: 1.2 to 1: 1.4 to prepare the urethane prepolymer.
- The method of preparing a suede type artificial leather according to claim 4, wherein the fluorinated carbon compound having hydroxy functional groups at both terminals, has 8 to 14 fluorine groups bonded to one side chain and fluorine content of 50 to 70mol% in one functional group and is an ether diol having hydroxy functional groups at both terminals.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140130226A KR101963127B1 (en) | 2014-09-29 | 2014-09-29 | Manufacturing method of suede-type artificial leather having antifouling |
PCT/KR2015/009995 WO2016052906A1 (en) | 2014-09-29 | 2015-09-23 | Suede type artificial leather with antifouling property, and preparation method therefor |
Publications (3)
Publication Number | Publication Date |
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EP3202976A1 true EP3202976A1 (en) | 2017-08-09 |
EP3202976A4 EP3202976A4 (en) | 2018-05-30 |
EP3202976B1 EP3202976B1 (en) | 2019-06-12 |
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ID=55630882
Family Applications (1)
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EP15846907.2A Active EP3202976B1 (en) | 2014-09-29 | 2015-09-23 | Suede type artificial leather with soiling protection property and preparation therefor |
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Country | Link |
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US (1) | US20170284018A1 (en) |
EP (1) | EP3202976B1 (en) |
JP (1) | JP6530810B2 (en) |
KR (1) | KR101963127B1 (en) |
CN (1) | CN107075792A (en) |
WO (1) | WO2016052906A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018215386A1 (en) * | 2017-05-24 | 2018-11-29 | Solvay Specialty Polymers Italy S.P.A. | Monolithic breathable membrane |
Families Citing this family (1)
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KR101619636B1 (en) | 2014-11-07 | 2016-05-10 | 현대자동차주식회사 | Synthetic Leather For Steering Wheel Covering improved Durability And Preparation Method Thereof |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0674546B2 (en) * | 1986-04-25 | 1994-09-21 | 大日精化工業株式会社 | Artificial leather |
IT1213441B (en) * | 1986-12-30 | 1989-12-20 | Ausimont Spa | POLYURETHANE AND FLUORINATED WATER DISPERSIONS AND THEIR USE FOR TEXTILE COATINGS. |
KR940011516B1 (en) * | 1991-06-07 | 1994-12-20 | 주식회사 금성사 | Light beam apparatus color video printer |
JP3121457B2 (en) * | 1992-10-30 | 2000-12-25 | 株式会社クラレ | Leather-like sheet with good stain resistance |
KR960006297B1 (en) * | 1992-11-11 | 1996-05-13 | 동양나이론주식회사 | Polyurethane resin composite for artificial leather |
EP1143063B1 (en) * | 2000-03-31 | 2008-09-17 | Dainichiseika Color & Chemicals Mfg. Co. Ltd. | Artificial leather |
KR100969839B1 (en) * | 2002-06-20 | 2010-07-13 | 데이진 고도레 가부시키가이샤 | Leathery sheet object, process for producing the same, and urethane compound modified with fluorinated side chain |
DE10331483A1 (en) * | 2003-07-11 | 2005-02-10 | Construction Research & Technology Gmbh | Fluoromodified one- or two-component polyurethane resins, process for their preparation and their use |
DE102009014699A1 (en) * | 2009-03-27 | 2010-10-07 | Carl Freudenberg Kg | Process for the preparation of a reactive polyurethane emulsion |
EP2719713B1 (en) * | 2011-06-13 | 2018-10-03 | DIC Corporation | Polyurethane composition, water repellent agent, polyurethane resin composition for forming surface skin layer of leather-like sheet, and leather-like sheet |
KR20130035369A (en) * | 2011-09-30 | 2013-04-09 | 코오롱인더스트리 주식회사 | Artificial leather and method of manufacturing the same |
-
2014
- 2014-09-29 KR KR1020140130226A patent/KR101963127B1/en active IP Right Grant
-
2015
- 2015-09-23 CN CN201580052246.6A patent/CN107075792A/en active Pending
- 2015-09-23 US US15/512,235 patent/US20170284018A1/en not_active Abandoned
- 2015-09-23 WO PCT/KR2015/009995 patent/WO2016052906A1/en active Application Filing
- 2015-09-23 EP EP15846907.2A patent/EP3202976B1/en active Active
- 2015-09-23 JP JP2017516349A patent/JP6530810B2/en active Active
Cited By (1)
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---|---|---|---|---|
WO2018215386A1 (en) * | 2017-05-24 | 2018-11-29 | Solvay Specialty Polymers Italy S.P.A. | Monolithic breathable membrane |
Also Published As
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JP2017534773A (en) | 2017-11-24 |
WO2016052906A1 (en) | 2016-04-07 |
KR101963127B1 (en) | 2019-03-28 |
EP3202976A4 (en) | 2018-05-30 |
KR20160037538A (en) | 2016-04-06 |
CN107075792A (en) | 2017-08-18 |
JP6530810B2 (en) | 2019-06-12 |
US20170284018A1 (en) | 2017-10-05 |
EP3202976B1 (en) | 2019-06-12 |
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