CN103243603A - Paper making shoe press belt - Google Patents
Paper making shoe press belt Download PDFInfo
- Publication number
- CN103243603A CN103243603A CN2013100412488A CN201310041248A CN103243603A CN 103243603 A CN103243603 A CN 103243603A CN 2013100412488 A CN2013100412488 A CN 2013100412488A CN 201310041248 A CN201310041248 A CN 201310041248A CN 103243603 A CN103243603 A CN 103243603A
- Authority
- CN
- China
- Prior art keywords
- polyurethane
- layer
- curing agent
- shoe press
- press belt
- 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
Links
- 229920002635 polyurethane Polymers 0.000 claims abstract description 147
- 239000004814 polyurethane Substances 0.000 claims abstract description 147
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 74
- 238000001723 curing Methods 0.000 claims abstract description 72
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 39
- 239000000758 substrate Substances 0.000 claims abstract description 39
- -1 diisocyanate compound Chemical class 0.000 claims abstract description 22
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000013007 heat curing Methods 0.000 claims abstract description 15
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 9
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 claims abstract description 8
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 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 claims abstract description 7
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 50
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 29
- 239000012948 isocyanate Substances 0.000 claims description 17
- 238000003475 lamination Methods 0.000 claims description 14
- 125000005442 diisocyanate group Chemical group 0.000 claims description 11
- VDJBIPLKIGSVRG-UHFFFAOYSA-N 3-chloro-2,6-diethylaniline Chemical compound CCC1=CC=C(Cl)C(CC)=C1N VDJBIPLKIGSVRG-UHFFFAOYSA-N 0.000 claims description 7
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 abstract description 5
- 150000003077 polyols Chemical class 0.000 abstract description 4
- VIOMIGLBMQVNLY-UHFFFAOYSA-N 4-[(4-amino-2-chloro-3,5-diethylphenyl)methyl]-3-chloro-2,6-diethylaniline Chemical compound CCC1=C(N)C(CC)=CC(CC=2C(=C(CC)C(N)=C(CC)C=2)Cl)=C1Cl VIOMIGLBMQVNLY-UHFFFAOYSA-N 0.000 abstract 1
- AOFIWCXMXPVSAZ-UHFFFAOYSA-N 4-methyl-2,6-bis(methylsulfanyl)benzene-1,3-diamine Chemical compound CSC1=CC(C)=C(N)C(SC)=C1N AOFIWCXMXPVSAZ-UHFFFAOYSA-N 0.000 abstract 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 24
- 239000000203 mixture Substances 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 16
- 238000005336 cracking Methods 0.000 description 14
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 12
- 241001112258 Moca Species 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 241000063973 Mattia Species 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 244000137852 Petrea volubilis Species 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 229910001651 emery Inorganic materials 0.000 description 3
- 238000009661 fatigue test Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004970 Chain extender Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 206010011376 Crepitations Diseases 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000001321 HNCO Methods 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 125000000853 cresyl group Chemical group C1(=CC=C(C=C1)C)* 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
- D21F3/0227—Belts or sleeves therefor
Landscapes
- Paper (AREA)
- Polyurethanes Or Polyureas (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
A paper making shoe press belt includes a reinforcing fiber substrate and a polyurethane laminate. The reinforcing fiber substrate is embedded in at least one layer of the polyurethane laminate. At least one layer of the polyurethane laminate includes a polyurethane obtained by heat-curing a urethane prepolymer together with a mixed curing agent. The urethane prepolymer includes a terminal isocyanate group and is obtained by reacting a diisocyanate compound and a long-chain polyol. The diisocyanate compound includes at least one of toluene-diisocyanate, diphenylmethane-diisocyanate, and paraphenylene-diisocyanate. The mixed curing agent includes 70-99.5 mol % of dimethylthiotoluenediamine and 0.5-30 mol % of a curing agent. The curing agent includes at least one of 4,4'-methylenebis(2,6-diethyl-3-chloroaniline), 4,4'-methylenedianiline, and 1,4-butanediol. An equivalent ratio of active hydrogen groups of the mixed curing agent to isocyanate groups of the urethane prepolymer is from 1.02 to 1.15.
Description
The cross reference of related application
The application requires in the priority of the Japanese patent application 2012-020045 of submission on February 1st, 2012, and its disclosure is incorporated this paper by reference in full into.
Background technology
In papermaking shoe press equipment, utilize shoe press mechanism to implement dehydration by making transportation blanket 3 and wet web 4 by the squeeze section that is constituted by pressure roller 1 and boots 5, wherein between pressure roller 1 and boots 5, provide ring-type shoe press belt 2, for example as shown in Figure 3.
For example as shown in Figure 1, shoe press belt 2 comprises and is provided at 6 two lip-deep periphery layer of polyurethane 21 of reinforcing-fiber substrate and interior all layer of polyurethane 22 that described reinforcing-fiber substrate 6 is incorporated in the described layer of polyurethane.In the pressure roller side surface of periphery layer of polyurethane 21, form many fluted 24.The water of extruding from wet web 4 in expressing process remains in the groove 24, the water that keeps is further transferred to the outside of squeeze section by the rotation of described band.Therefore, wish that the groove 24 that forms should have improved conformality by pressure roller 1 and boots 5 extruding the time in the pressure roller side surface of periphery layer of polyurethane 21.Further wish to improve the mechanical performance of the projection 25 of periphery layer of polyurethane 21 pressure roller side surfaces, for example the vertical extruding force that applied by pressure roller 1, frictional force and the flex fatigue of shoe press belt in the shoe press zone are had anti-cracking performance, flexing fatigue life and ABRASION RESISTANCE.
Polyurethane with excellent anti cracking performance and ABRASION RESISTANCE is widely used as forming the resin material of the periphery layer of polyurethane 21 of shoe press belt 2.
For example, JP-A-11-247086 discloses a kind of shoe press belt, and it comprises and be provided at two lip-deep periphery layer of polyurethane of reinforcing-fiber substrate and interior all layer of polyurethane that described reinforcing-fiber substrate is incorporated in the described layer of polyurethane.The polyurethane of described outer perisphere and interior perisphere obtains by the carbamate prepolymer (by the TAKENATEL2395 of Takeda Pharmaceutical Company Limited production) that heat cure has isocyanate terminated base, described prepolymer is by making toluene di-isocyanate(TDI) (TDI) with polytetramethylene glycol (PTMG) with as 3 of curing agent (chain extender), 3'-two chloro-4, (it is for the commercially available compound of MBOCA and MOCA and also be called 4 for the 4'-diaminodiphenylmethane, 4'-di-2-ethylhexylphosphine oxide (o-chloraniline) or 4,4'-di-2-ethylhexylphosphine oxide (2-chloroaniline)) reaction and obtain.
JP-B-3698984, United States Patent (USP) 7,374,641, EP0855414, JP-B-3803106 and United States Patent (USP) 7,090,747 disclose a kind of shoe press belt, it comprises and is provided at two lip-deep periphery layer of polyurethane of reinforcing-fiber substrate and interior all layer of polyurethane that described reinforcing-fiber substrate is incorporated in the described layer of polyurethane.The polyurethane of described outer perisphere has the carbamate prepolymer of isocyanate terminated base (by Mitsui Chemicals by heat cure, Inc. the HIPRENL of Sheng Chaning) obtain, described prepolymer obtains by toluene di-isocyanate(TDI) (TDI) is reacted with polytetramethylene glycol (PTMG) and diformazan sulfenyl toluenediamine (ETHACURE300).
JP-B-3698984, United States Patent (USP) 7,374,641, EP0855414, JP-B-3803106 and United States Patent (USP) 7,090, use diformazan sulfenyl toluenediamine to replace 3 in 747,3'-two chloro-4, the 4'-diaminodiphenylmethane is as curing agent, this be because: (i) JP-A-7-292237 points out 4,4'-di-2-ethylhexylphosphine oxide (2-chloroaniline) has toxicity, and recommend to use diethyl toluene diamine as curing agent (referring to [0006] section), (ii) periodical " Polyfile ", in January, 1999,37-38 page or leaf, therefore " ETHACURE300:New Curing Agent as Substitute for MOCA " described ETHACURE300 and had the excellent curability at low temperatures suitable with MOCA and the toxicity lower than MOCA, used as the substitute of MOCA; (iii) periodical " POLYMER ", the 36th volume, nineteen ninety-five, the 767-774 page or leaf, " The effect of curative on the fracture toughness of PTMEG/TDI polyurethane elastomers " recommend to use ETHACURE300 as the substitute of MOCA with the curing agent as TDI/PTMG aminocarbamic acid ester prepolymer, because curability at low temperatures and the crackle expansion inhibition of the polyurethane that solidifies with ETHACURE300 are better than the polyurethane (referring to Fig. 7 and " Conclusion " hurdle) that solidifies with MOCA.
JP-A-10-212333 has described 4,4'-di-2-ethylhexylphosphine oxide (2-chloroaniline) and the diformazan sulfenyl toluenediamine curing agent as the polyurethane that is used for constituting belt.
" POLYMER ", the 36th volume, nineteen ninety-five, the 767-774 page or leaf, " The effect of curative on the fracture toughness of PTMEG/TDI polyurethane elastomers " points out in the result that cracking resistance shown in Figure 7 takes place to test, " polyurethane that uses MOCA has than the higher initial tear resistance energy of polyurethane that uses Ethacure300 but ruptures under this intensity; and use the polyurethane of Ethacure300 to have than the lower generation of the cracking first tearing strength energy of polyurethane that uses MOCA; do not cause fracture, although find out the little cracking that number of times has taken place to improve at short notice from the test result that ftractures repeatedly subsequently." be expected at the cracking resistance of implementing on the shoe press belt that has groove from the teeth outwards shown in the JP-A-11-247086 accompanying drawing and observe and above-mentioned these similar results in testing.In the cracking resistance that the shoe press belt that does not have groove is implemented was tested, expection used the polyurethane of ETHACURE300 preparation to have than the lower cracking generation intensity energy of polyurethane that uses the MOCA preparation.
The invention summary
In embodiments, the present invention relates to a kind of papermaking shoe press belt (being also referred to as shoe press belt) for papermaking shoe press equipment.In specific embodiments, the present invention relates to a kind of shoe press belt for the closed shoe press.Exemplary shoe press belt of the present invention has excellent anti-cracking performance.Exemplary shoe press belt of the present invention comprises the reinforcing-fiber substrate that is embedded in one or more adjacent layer of polyurethane, and described layer of polyurethane is by forming with mixed chain extender heat cure and carbamate prepolymer with specific composition.
Exemplary shoe press belt of the present invention demonstrates excellent result in cracking resistance is tested, no matter the outermost surface of described band has structure, still do not have groove.Exemplary shoe press belt of the present invention can use as the ETHACURE300 of major constituent and as other curing agent with excellent curability at low temperatures of helper component the two as the curing agent that is used for complete curing amino formic acid esters prepolymer.
In exemplary of the present invention, the papermaking shoe press belt comprises reinforcing-fiber substrate and polyurethane lamination body.In preferred embodiments, described polyurethane lamination body is integrated structure.Described reinforcing-fiber substrate is embedded at least one layer of described polyurethane lamination body.At least one layer of described polyurethane lamination body comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B).Described carbamate prepolymer (A) contains isocyanate terminated base.Described carbamate prepolymer (A) obtains by making diisocyanate cpd (a) and long-chain polyhydric alcohol (b) reaction.Described diisocyanate cpd (a) comprises toluene di-isocyanate(TDI) (TDI), '-diphenylmethane diisocyanate (MDI) and at least a in the phenylene vulcabond (PPDI).Described mixed curing agent (B) comprises the diformazan sulfenyl toluenediamine (c) of 70-99.5mol% and the curing agent (d) of 0.5-30mol%.Described curing agent (d) comprises 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline), 4, at least a in 4'-methylene dianiline (MDA) and 1, the 4-butanediol.The equivalent proportion of the isocyanate group of the active hydrogen group of described mixed curing agent (B) and described carbamate prepolymer (A) ((is 1.02-1.15 H)/(NCO)).
In one embodiment of the invention, the papermaking shoe press belt is formed by polyurethane, reinforcing-fiber substrate and layer of polyurethane are combined into one and reinforcing-fiber substrate is embedded in the polyurethane, wherein said polyurethane obtains by the carbamate prepolymer (A) that heat cure has isocyanate terminated base, and described prepolymer (A) is by making
Be selected from toluene di-isocyanate(TDI) (TDI), '-diphenylmethane diisocyanate (MDI) and to the diisocyanate cpd (a) of inferior cresyl vulcabond (PPDI) with
Long-chain polyhydric alcohol (b) and
Comprise mixed curing agent (B) reaction of following component and obtain:
70-99.5mol% diformazan sulfenyl toluenediamine (c) and
0.5-30mol% is selected from 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline), 4, the curing agent (d) of 4'-methylene dianiline (MDA) and 1,4-butanediol;
(H) (equivalent proportion NCO) (H/-NCO) is 1.02-1.15 to the active hydrogen group of wherein said mixed curing agent with the isocyanate group of described carbamate prepolymer (A).
In the embodiment of shoe press belt of the present invention, because described shoe press belt is formed by the completely crued polyurethane of usefulness mixed curing agent towards the periphery layer of polyurethane of wet paper web side, described shoe press belt demonstrates the result of improvement in cracking resistance is tested.
Brief description
By with reference to hereinafter describing in detail and when considering with accompanying drawing, can easily understand the present invention and incidental many advantages thereof more comprehensively and better, in described accompanying drawing:
Fig. 1 is the viewgraph of cross-section of exemplary shoe press belt;
Fig. 2 is the viewgraph of cross-section of exemplary shoe press belt;
Fig. 3 is the viewgraph of cross-section of exemplary shoe press equipment;
Fig. 4 is for using the schematic diagram of De Mattia deflection tester test crack expansibility energy; With
Fig. 5 is the schematic diagram for the test of the cracking generation of measuring shoe press belt.
The detailed description of exemplary
Referring now to accompanying drawing, exemplary of the present invention is described in more detail, wherein in several views, identical Reference numeral is represented identical or corresponding parts.The invention is not restricted to the exemplary shown in the accompanying drawing.
Fig. 1 is the cross sectional representation of the exemplary shoe press belt 1 of the present invention, and wherein the polyurethane in reinforcing-fiber substrate 6 and outer perisphere 21 and the interior perisphere 22 is combined into one.Described reinforcing-fiber substrate 6 is embedded in the described polyurethane, is formed with groove 24 in periphery layer of polyurethane 21.
Fig. 2 has illustrated another exemplary of the present invention wherein not form groove 24 in the periphery layer of polyurethane.Fig. 2 (a) has shown following structure, and wherein reinforcing-fiber substrate 6 is embedded in periphery layer of polyurethane 2a and interior all layer of polyurethane 2b at the interface, and wherein said layer has identical composition.Fig. 2 (b) has shown following structure, and wherein reinforcing-fiber substrate 6 is embedded in periphery layer of polyurethane 2a and interior all layer of polyurethane 2b at the interface, and wherein said layer has different compositions.Fig. 2 (c) has shown following structure, and wherein reinforcing-fiber substrate 6 is embedded among the intermediate urethane layer 2c that is provided between periphery layer of polyurethane 2a and the interior all layer of polyurethane 2b.
Fig. 3 is the reduced graph of the shoe press mechanism in the paper machine.In the figure, Reference numeral 2 expression shoe press belts, Reference numeral 4 expression wet webs, Reference numeral 3 expression papermaking blankets, Reference numeral 1 expression pressure roller, and Reference numeral 5 expression boots.
Fig. 4 is for showing the key diagram of the crack expansibility energy that uses De Mattia deflection tester test polyurethane test pieces 61.
Fig. 5 is the key diagram for the tester 42 of measuring the generation of shoe press belt 41 crackles.
In each exemplary, reinforcing-fiber substrate 6 can be as JP-A-11-247086, United States Patent (USP) 7,374,641 or the described fabric of EP0855414, perhaps other reinforcing-fiber substrate described in other documents.For example, reinforcing-fiber substrate 6 can be grid-like material, wherein with the multifilament twisted yarn of polyethylene terephthalate (PET) fiber of 5000dtex as warp and parallel, described warp is clipped in the parallel, and the intersection point between parallel and the warp is bonding and bonding by polyurethane.The fiber that can use polyamide fiber such as aramid fiber, nylon 6,6, nylon 6,10 and nylon 6 as fibrous material to replace pet fiber.In addition, the fiber of being made by different materials warp and parallel be can be used for, warp and parallel with different-thickness such as 5000dtex and 7000dtex perhaps can be used.
In each exemplary, form the polyurethane of periphery layer of polyurethane 21 of described shoe press belt for having 90-99, the polyurethane of the JIS-A hardness of preferred 94-97, it obtains by the carbamate prepolymer (A) that heat cure has isocyanate terminated base, described prepolymer is selected from toluene di-isocyanate(TDI) (TDI) by making (a), '-diphenylmethane diisocyanate (MDI) and to the diisocyanate cpd of phenylene vulcabond (PPDI) with (b) long-chain polyhydric alcohol and mixed curing agent (B) reaction and obtain, described mixed curing agent (B) comprise (c) 70-99.5mol% diformazan sulfenyl toluenediamine and (d) 0.5-30mol% be selected from 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline), 4, the curing agent of 4'-methylene dianiline (MDA) and 1,4-butanediol; (H) (equivalent proportion NCO) (H/-NCO) is 1.02-1.15 to the active hydrogen group of wherein said mixed curing agent with the isocyanate group of described carbamate prepolymer (A).
In each exemplary, the polyurethane that forms interior all layer of polyurethane 22 of described shoe press belt can be identical with the polyurethane that forms periphery layer of polyurethane 21, perhaps can be to have the different polyurethane of forming.
In each exemplary, can comprise the polyol compound that one or more are selected from following group as the described long-chain polyhydric alcohol of the raw material of described carbamate prepolymer (A): polyether polyol, polyester polyol, polycaprolactone polyol and polycarbonate polyol.In some described embodiments, can use adduction product and/or the propylene glycol (PPG) of polytetramethylene glycol (PTMG), polyethylene glycol (PEG), ethylene oxide and propylene oxide.
In each exemplary, described shoe press belt is produced by the following method, the coating of the mixture of the carbamate prepolymer of all layer of polyurethane and mixed curing agent and immersion coating have the axle surface of releasing agent in wherein being used to form, live spindle is interior all layer of polyurethane of 0.8-3.5mm thereby form thickness on the axle surface simultaneously.With the gained layer 85-125 ° of C precuring 0.5-1 hour.Fiber-reinforced wrapped base material around it then applies then and is used to form the carbamate prepolymer in intermediate layer and mixture to the thickness of curing agent is 0.5-2mm.With the described reinforcing-fiber substrate of described impregnation mixture (it is also bonding with interior all layer of polyurethane), and with gained layer under 50-120 ° of C precuring 0.5-1 hour.Subsequently, the mixing that is used to form the carbamate prepolymer of periphery layer of polyurethane and curing agent applies and floods the surface of described reinforcing-fiber substrate, and live spindle is the periphery layer of polyurethane of 1.5-4mm thereby form thickness simultaneously.The resulting structures body was solidified 2-20 hour under 100-130 ° of C.Subsequently, in the periphery layer of polyurethane, cut out groove shown in Figure 1.Described groove can contact under pressure and cut out in this periphery layer of polyurethane with described periphery layer of polyurethane by make the knurling rolls of heating in described periphery layer of polyurethane solidification process, the surface of described knurling rolls has projection, and the height of described projection is identical with gash depth.Described axle comprises heater.
In other embodiments, described shoe press belt is produced by the following method, the mixture of the carbamate prepolymer of all layer of polyurethane and mixed curing agent is coated with the axle surface of releasing agent in wherein being used to form, and is interior all layer of polyurethane of 0.8-3mm thereby form thickness.With gained layer under 70-130 ° of C precuring 0.5-2 hour.The fiber-reinforced wrapped base material of the external surface peripheral of all layer of polyurethane in described then, and apply and be used to form the carbamate prepolymer in intermediate layer and mixture to the thickness of curing agent is 0.5-2mm.With the described reinforcing-fiber substrate of described impregnation mixture, it is also bonding with interior all layer of polyurethane.With gained layer under 50-120 ° of C precuring 0.5-1 hour.Coating is used to form the carbamate prepolymer of periphery layer of polyurethane and the mixture of mixed curing agent, so that the thickness of periphery layer of polyurethane is 2-4mm.The resulting structures body was solidified 12-20 hour under 70-130 ° of C.In the periphery layer of polyurethane, cut and process groove with cutting tool, and polish described periphery layer of polyurethane with sand paper or polyurethane emery cloth.
In other embodiments, described shoe press belt is produced by the following method, the mixture of the carbamate prepolymer of all layer of polyurethane and curing agent is coated with the axle surface of releasing agent in wherein being used to form, and is interior all layer of polyurethane of 0.8-3mm thereby form thickness.With gained layer under 50-140 ° of C precuring 0.5-2 hour.The external surface peripheral of all layer of polyurethane winding thickness is the intermediate urethane layer of 1-2mm in described, is embedded with reinforcing-fiber substrate (prepared beforehand) in the described intermediate urethane layer.Described intermediate layer is by being heated to the pressure roller extruding of 50-140 ° of C.Further applying and be used to form the carbamate prepolymer of periphery layer of polyurethane and the mixture of mixed curing agent, is the periphery layer of polyurethane of 2-4mm thereby form thickness.The resulting structures body was solidified 2-20 hour under 70-140 ° of C.Polish described periphery layer of polyurethane with sand paper or polyurethane emery cloth.In the periphery layer of polyurethane of polishing, cutting and processing groove with cutting tool.
In other embodiments, described shoe press belt is by using two rollers but not the method production of axle.For example, making for no reason, reinforcing-fiber substrate stretches between two rollers.Apply the surface of described reinforcing-fiber substrate with the mixture of carbamate prepolymer and curing agent.With the described reinforcing-fiber substrate of described impregnation mixture, and with resulting structures body under 50-120 ° of C precuring 0.5-2 hour.The carbamate prepolymer of all layer of polyurethane in being used to form and the mixture of mixed curing agent are coated on the described reinforcing-fiber substrate, are interior all layer of polyurethane of 0.5-3mm thereby form thickness.With resulting structures body under 70-140 ° of C precuring 2-12 hour.Surface with sand paper or the described interior all layer of polyurethane of emery cloth polishing.With described semi-finished product upset, hang on described two rollers and stretching, extension.Mixture with the carbamate prepolymer that is used to form the periphery layer of polyurethane and mixed curing agent applies the surface of semi-finished of described stretching, extension to flood described reinforcing-fiber substrate.Further applying the surface of semi-finished of described stretching, extension with described mixture, is the periphery layer of polyurethane of 1.5-4mm thereby form thickness.The resulting structures body was solidified 2-20 hour under 70-140 ° of C.After curing, described periphery layer of polyurethane is polished to predetermined thickness, and in described periphery layer of polyurethane, cuts and process groove with cutting tool.
Embodiment
Hereinafter embodiment and this specification in the whole text in, all parts and percentage is all based on weight, and all temperature are degree centigrade, unless offer some clarification in addition.When the solid content of report dispersion or solution, its expression is respectively based on the solid weight of described dispersion or solution.When the explanation molecular weight, the products molecule weight range that it provides for goods providers, it is through identifying.Usually it is believed that it is weight average molecular weight.
In order to estimate the physical property of the polyurethane that forms shoe press belt, preparation polyurethane test pieces as mentioned below.
Comparative examples 1 (embodiment 1)
Will be by making toluene di-isocyanate(TDI) (TDI) with polytetramethylene glycol (PTMG) with by 90mol% diformazan sulfenyl toluenediamine (ETHACURE300) and 10mol%1, the mixed curing agent that the 4-butanediol constitutes reacts carbamate prepolymer (the NCO percentage: 6.02% that (described mixed curing agent is 1.05 with the ratio of the H/NCO of described carbamate prepolymer) obtains; Viscosity under 80 ° of C: 400cps; Preheat temperature: 66 ° of C) in the mould of impouring preheating, be heated to 100 ° of C, precuring is 0.5 hour under 100 ° of C, take out from mould then, and solidifies 16 hours the back under 100 ° of C, thereby obtains polyurethane sheet.By this sheet preparation test pieces (thickness is 3.5mm).
Comparative examples 8 (Comparative Examples 1)
To react carbamate prepolymer (the NCO percentage: 6.02% that (described mixed curing agent is 0.95 with the ratio of the H/NCO of described carbamate prepolymer) obtains with polytetramethylene glycol (PTMG) with by the curing agent that diformazan sulfenyl toluenediamine (ETHACURE300) constitutes by making toluene di-isocyanate(TDI) (TDI); Viscosity under 80 ° of C: 400cps; Preheat temperature: 66 ° of C) in the mould of impouring preheating, be heated to 100 ° of C, precuring is 0.5 hour under 100 ° of C, take out from mould then, and solidifies 16 hours the back under 100 ° of C, thereby obtains polyurethane sheet.By this sheet preparation test pieces (thickness is 3.5mm).
Comparative examples 2-7 (embodiment 2-7) and comparative examples 9-13 (Comparative Examples 2-6)
Prepare polyurethane sheet according to the mode identical with comparative examples 1, difference is that carbamate prepolymer listed in use table 1 and the table 2 is as carbamate prepolymer, use curing agent listed in table 1 and the table 2 as curing agent, use HNCO ratio listed in the described table, and in described table, prepare under listed preheating and the condition of cure.By described sheet preparation test pieces (thickness is 3.5mm).
Listed curing agent is diformazan sulfenyl toluenediamine (ETHACURE300), 4 in table 1 and the table 2,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline) (LONZACURE MCDEA), 4,4'-methylene dianiline (MDA) (CAYTUR31DA), 1,4-butanediol (1,4-BD) with 4,4'-di-2-ethylhexylphosphine oxide (2-chloroaniline) (MOCA).CAYTUR31DA is for being scattered in 4 in the dioctyl adipate (DOA), the complex of 4'-methylene dianiline (MDA) and sodium chloride.
The polyurethane sheet test pieces that obtains in embodiment 1-13 is carried out De Mattia deflection test.In described deflection test, use with JIS-K-6260 (2005) in like the defined De Mattia deflection test class tester (as shown in table 4) under the atmosphere of 20 ° of C and 52% relative humidity, test the crack expansibility energy under the following conditions.The width of test pieces 61 is 25mm, and length is 185mm (chuck one side that comprises 20mm), and the length between the anchor clamps 62 is 150mm, and thickness is 3.4mm, and the radius of the semicircular recess 61a of center is 1.5mm.In reciprocating motion, the ultimate range between the anchor clamps is 100mm, and minimum range is 35mm, and move distance is 65mm, back and forth speed be 360 times back and forth/minute.Be cut with length in the center of described test pieces width and be the otch of about 2mm.Being set at right anchor clamps and left anchor clamps with respect to reciprocating direction respectively is 45.Deflection is repeatedly subject to the foregoing measured crack length behind predetermined stroke increment.The number of strokes used herein will be for by multiply by the value that reciprocal speed obtains the testing time.When the crack length that rises when the measured value by early stage notch length (about 2mm) surpasses 15mm, finish test, draw the curve of approximation of the number of strokes and crack length, read the number of strokes during for 15mm at crack length, will the acquisition value be considered as the crack expansibility energy divided by the number of strokes of this moment by the crack length (measured value of 15mm crack length-initial notch length) that will increase.The gained physical property is summarized in table 1 and the table 2.
Table 1
Table 2
Find out that by table 1 and table 2 are clear the polyurethane of embodiment demonstrates than the better resistance of crack propagation of the polyurethane of Comparative Examples.
Use above-mentioned urethane composition to produce shoe press belt in the following manner.
[embodiment 1]
Step 1: it can be on the axle surface of 1500mm by the diameter of drive unit rotation that releasing agent (KS-61: by Shin-Etsu Chemical Co., Ltd. produces) is coated to.Then, use can will be coated on the axle of rotation and reach the thickness of 1.4mm with the injection-molded nozzle of axle rotating shaft parallel motion by carbamate prepolymer (TDI/PTMG based prepolymers) mixed the composition spiral for preparing as described in comparative examples 1 with mixed curing agent, and form urethane resin layer.In live spindle, described layer was at room temperature left standstill 40 minutes, further by the heater that links to each other with described axle with described resin under 115 ° of C, heat 0.5 hour also precuring with all layer of polyurethane in the formation boots side.
Step 2: the multifilament twisted yarn of the pet fiber of use 5000dtex prepares grid-like material as the multifilament textile of the pet fiber of parallel and 550dtex as warp.Described warp is clipped in the parallel, and the intersection point between parallel and the warp by polyurethane-based resin bonding and bonding (warp density is 1 strand/cm, weft density be 4 strands/cm).So that parallel does not have a grid-like material layer with multi-disc on any periphery that places boots side layer with gap along the axial mode of axle.The multifilament textile of the polyethylene terephthalate of the 6700dtex pitch spiral with 30 strands/5cm is wound on the periphery of described grid-like material, thereby forms the bobbin layer.Then, apply described urethane composition to the thickness of about 1.6mm and be combined into the intermediate layer, filling the gap between described grid-like material and the bobbin layer, and formation reinforcing-fiber substrate polyurethane intermediate layer.
Step 3: will be as the composition for preparing by carbamate prepolymer as described in mixing and curing agent as described in the comparative examples 1 by spiral coating method dipping and reach the thickness of about 2.5mm as described in being coated on the intermediate layer, heating is 16 hours under 115 ° of C, and solidify to form outer perisphere the back.Be 5.2mm with surface finish to the gross thickness of described outer perisphere, by forming plurality of grooves (groove width 1.0mm, degree of depth 1.0mm, pitch width 3.18mm) and obtain shoe press belt at machine direction with rotating knife.
[Comparative Examples 1]
Obtain shoe press belt in the mode identical with embodiment 1, difference is to use the urethane composition in the urethane composition replacement comparative examples 1 used in the comparative examples 6, and the condition of cure that precuring and back are solidified becomes 100 ° of C respectively, 0.5 hour and 100 ° of C, 16 hours.
[embodiment 2] to [embodiment 5], [Comparative Examples 2] is to [Comparative Examples 6]
Obtain shoe press belt in the mode identical with embodiment 1, difference is under precuring listed in table 1 and table 2 and the condition of cure carbamate prepolymer listed in the use table 1 and table 2 as carbamate prepolymer, and uses curing agent listed in table 1 and the table 2 as curing agent.
The gained shoe press belt is carried out the flex fatigue test.The belt sample that has groove by evaluation carries out the flex fatigue test.As the flex fatigue test, under the atmosphere of 20 ° of C and 52% relative humidity, use equipment shown in Figure 5 to ftracture and test.The width of test pieces 71 is 60mm, and the length between the anchor clamps is 70mm.By making lower end anchor clamps 42a carry out the circular arc reciprocating motion, upper end-fixture 42b and test pieces also along the circular arc path reciprocating motion so that the test pieces deflection, thereby make and take place tired at the top of lower end anchor clamps.Distance between the top of center of arc and lower end anchor clamps is 168mm, and the movable length of lower end anchor clamps is 161mm, back and forth speed be 162 times back and forth/minute.The weight of upper end-fixture is 400g.The number of times when cracking takes place is measured in deflection repeatedly under the described conditions.All shoe press belts of embodiment all demonstrate the result that can stand 1,000,000 deflections.Described the results are shown in table 3 and the table 4.
Table 3
Table 4
Find out from The above results is clear, compare with known shoe press belt (for example in Comparative Examples), () shoe press belt has excellent low-temperature setting performance to embodiment of the present invention for example in an embodiment, has the cracking generation inhibition of improvement, and has excellent actual value.
When this paper illustrates numerical value limit or scope, comprise end points.Also comprise all values and subrange in numerical value limit or the scope, write out as clear.
It is evident that, with reference to above-mentioned instruction, can carry out many improvement and change to the present invention.Therefore, be understood that within the claims scope that the present invention can implement to be different from the specifically described mode of this paper.
All above-mentioned patents and other citing documents are incorporated this paper into by this incorporated, as what describe in detail.
According to specific embodiments, the invention provides following (1) to (21):
(1). a kind of papermaking shoe press belt comprises:
Reinforcing-fiber substrate and
Polyurethane lamination body;
Wherein:
Described reinforcing-fiber substrate is embedded at least one layer of described polyurethane lamination body;
At least one layer of described polyurethane lamination body comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B);
Described carbamate prepolymer (A) comprises isocyanate terminated base;
Described carbamate prepolymer (A) obtains by making diisocyanate cpd (a) and long-chain polyhydric alcohol (b) reaction;
Described diisocyanate cpd (a) comprises at least a member who is selected from following group: toluene di-isocyanate(TDI) (TDI), '-diphenylmethane diisocyanate (MDI) and to phenylene vulcabond (PPDI);
Described mixed curing agent (B) comprises 70-99.5mol% diformazan sulfenyl toluenediamine (c) and 0.5-30mol% curing agent (d);
Described curing agent (d) comprises at least a member who is selected from following group: 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline), 4,4'-methylene dianiline (MDA) and 1,4-butanediol; With
The equivalent proportion of the isocyanate group of the active hydrogen group of described mixed curing agent (B) and described carbamate prepolymer (A) ((is 1.02-1.15 H)/(NCO)).
(2). according to the papermaking shoe press belt of (1), all layer of polyurethane and periphery layer of polyurethane in wherein said polyurethane lamination body comprises.
(3). according to the papermaking shoe press belt of (2), wherein said interior all layer of polyurethane comprise the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B).
(4). according to the papermaking shoe press belt of (3), wherein said periphery layer of polyurethane has the surface that comprises groove.
(5). according to the papermaking shoe press belt of (3), the two all comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B) wherein said interior all layer of polyurethane and periphery layer of polyurethane.
(6). according to the papermaking shoe press belt of (5), wherein said periphery layer of polyurethane has the surface that comprises groove.
(7). according to the papermaking shoe press belt of (2), wherein said periphery layer of polyurethane comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B).
(8). according to the papermaking shoe press belt of (7), wherein said periphery layer of polyurethane has the surface that comprises groove.
(9). according to each papermaking shoe press belt in (2) to (8), wherein said reinforcing-fiber substrate be embedded in described in all layer of polyurethane and periphery layer of polyurethane in the two.
(10). according to each papermaking shoe press belt in (2) to (8), further comprise intermediate urethane layer between all layer of polyurethane and periphery layer of polyurethane in described.
(11). according to the papermaking shoe press belt of (10), wherein said reinforcing-fiber substrate is embedded in the described intermediate urethane layer.
(12). according to each papermaking shoe press belt in (1) to (11), wherein said diisocyanate cpd (a) comprises toluene di-isocyanate(TDI) (TDI).
(13). according to each papermaking shoe press belt in (1) to (12), wherein said diisocyanate cpd (a) comprises '-diphenylmethane diisocyanate (MDI).
(14). according to each papermaking shoe press belt in (1) to (13), wherein said diisocyanate cpd (a) comprises phenylene vulcabond (PPDI).
(15). according to each papermaking shoe press belt in (1) to (14), wherein said curing agent (d) comprises 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline).
(16). according to each papermaking shoe press belt in (1) to (15), wherein said curing agent (d) comprises 4,4'-methylene dianiline (MDA).
(17). according to each papermaking shoe press belt in (1) to (16), wherein said curing agent (d) comprises 1,4-butanediol.
(18). according to each papermaking shoe press belt in (1) to (17), the equivalent proportion of the isocyanate group of the active hydrogen group of wherein said mixed curing agent (B) and described carbamate prepolymer (A) is 1.05-1.12.
(19). according to each papermaking shoe press belt in (1) to (17), the equivalent proportion of the isocyanate group of the active hydrogen group of wherein said mixed curing agent (B) and described carbamate prepolymer (A) is 1.02-1.10.
(20). according to each papermaking shoe press belt in (1) to (17), the equivalent proportion of the isocyanate group of the active hydrogen group of wherein said mixed curing agent (B) and described carbamate prepolymer (A) is 1.10-1.15.
(21). according to each papermaking shoe press belt in (1) to (20), at least one layer of wherein said polyurethane lamination body has the surface that comprises groove.
Claims (9)
1. papermaking shoe press belt comprises:
Reinforcing-fiber substrate and
Polyurethane lamination body;
Wherein:
Described reinforcing-fiber substrate is embedded at least one layer of described polyurethane lamination body;
At least one layer of described polyurethane lamination body comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B);
Described carbamate prepolymer (A) comprises isocyanate terminated base;
Described carbamate prepolymer (A) obtains by making diisocyanate cpd (a) and long-chain polyhydric alcohol (b) reaction;
Described diisocyanate cpd (a) comprises at least a member who is selected from following group: toluene di-isocyanate(TDI) (TDI), '-diphenylmethane diisocyanate (MDI) and to phenylene vulcabond (PPDI);
Described mixed curing agent (B) comprises 70-99.5mol% diformazan sulfenyl toluenediamine (c) and 0.5-30mol% curing agent (d);
Described curing agent (d) comprises at least a member who is selected from following group: 4,4'-di-2-ethylhexylphosphine oxide (2,6-diethyl-3-chloroaniline), 4,4'-methylene dianiline (MDA) and 1,4-butanediol; With
The equivalent proportion of the isocyanate group of the active hydrogen group of described mixed curing agent (B) and described carbamate prepolymer (A) ((is 1.02-1.15 H)/(NCO)).
2. according to the papermaking shoe press belt of claim 1, wherein said polyurethane lamination body comprises interior all layer of polyurethane and periphery layer of polyurethane.
3. according to the papermaking shoe press belt of claim 2, wherein said interior all layer of polyurethane comprise the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B).
4. according to the papermaking shoe press belt of claim 3, the two all comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B) wherein said interior all layer of polyurethane and periphery layer of polyurethane.
5. according to the papermaking shoe press belt of claim 2, wherein said periphery layer of polyurethane comprises the polyurethane that obtains by heat cure carbamate prepolymer (A) and mixed curing agent (B).
6. according to the papermaking shoe press belt of claim 2, wherein said reinforcing-fiber substrate be embedded in described in all layer of polyurethane and periphery layer of polyurethane in the two.
7. according to the papermaking shoe press belt of claim 2, further comprise intermediate urethane layer between all layer of polyurethane and periphery layer of polyurethane in described.
8. according to the papermaking shoe press belt of claim 7, wherein said reinforcing-fiber substrate is embedded in the described intermediate urethane layer.
9. according to the papermaking shoe press belt of claim 1, at least one layer of wherein said polyurethane lamination body has the surface that comprises groove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP020045/2012 | 2012-02-01 | ||
| JP2012020045A JP5161376B1 (en) | 2012-02-01 | 2012-02-01 | Shoe press belt for papermaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103243603A true CN103243603A (en) | 2013-08-14 |
| CN103243603B CN103243603B (en) | 2015-12-09 |
Family
ID=47715822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310041248.8A Active CN103243603B (en) | 2012-02-01 | 2013-02-01 | Papermaking shoe press belt |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130192787A1 (en) |
| EP (1) | EP2623667B1 (en) |
| JP (1) | JP5161376B1 (en) |
| CN (1) | CN103243603B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074561A (en) * | 2018-05-16 | 2020-12-11 | 第一工业制药株式会社 | Two-pack curable composition for forming thermoplastic matrix resin, matrix resin for fiber-reinforced composite material, and fiber-reinforced composite material |
| CN112703289A (en) * | 2018-09-18 | 2021-04-23 | 福伊特专利有限公司 | Press jacket, use thereof and press roll, shoe press and use of polyurethane for producing press jacket |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339546A (en) * | 2013-06-14 | 2016-02-17 | 株式会社市川 | Shoe press belt for papermaking |
| JP6501537B2 (en) * | 2015-01-16 | 2019-04-17 | イチカワ株式会社 | Shoe press belt and method for manufacturing the same |
| EP3199700B1 (en) * | 2016-02-01 | 2018-12-05 | Ichikawa Co., Ltd. | Shoe press belt |
| DE102017117227A1 (en) * | 2017-07-31 | 2019-01-31 | Voith Patent Gmbh | Press cover and its use as well as press roller and shoe press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1474893A (en) * | 2000-11-10 | 2004-02-11 | ɽ����ʽ���� | Belt for papermaking and process for producing papermaking belt |
| CN101688364A (en) * | 2007-05-18 | 2010-03-31 | 市川毛织株式会社 | Shoe press belt |
| JP2010116652A (en) * | 2008-11-14 | 2010-05-27 | Ichikawa Co Ltd | Shoe press belt |
| CN101720370A (en) * | 2007-06-25 | 2010-06-02 | 市川株式会社 | Shoe press belt for paper making |
| CN101962920A (en) * | 2009-07-21 | 2011-02-02 | 市川株式会社 | Papermaking shoe press belt |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07292237A (en) | 1994-04-28 | 1995-11-07 | Bando Chem Ind Ltd | Polyurethane composition for belt |
| US5821316A (en) | 1997-01-24 | 1998-10-13 | Air Products And Chemicals, Inc. | Polyurethane prepolymers for making elastomers having improved dynamic properties |
| JP3408416B2 (en) | 1998-02-26 | 2003-05-19 | 市川毛織株式会社 | Shoe press belt and method of manufacturing the same |
| JP3803106B2 (en) * | 2004-11-26 | 2006-08-02 | ヤマウチ株式会社 | Papermaking belt and method for producing papermaking belt |
| JP2006225839A (en) * | 2006-04-03 | 2006-08-31 | Yamauchi Corp | Shoe press belt |
-
2012
- 2012-02-01 JP JP2012020045A patent/JP5161376B1/en active Active
- 2012-07-05 US US13/541,907 patent/US20130192787A1/en not_active Abandoned
-
2013
- 2013-02-01 CN CN201310041248.8A patent/CN103243603B/en active Active
- 2013-02-01 EP EP13000525.9A patent/EP2623667B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1474893A (en) * | 2000-11-10 | 2004-02-11 | ɽ����ʽ���� | Belt for papermaking and process for producing papermaking belt |
| CN101688364A (en) * | 2007-05-18 | 2010-03-31 | 市川毛织株式会社 | Shoe press belt |
| CN101720370A (en) * | 2007-06-25 | 2010-06-02 | 市川株式会社 | Shoe press belt for paper making |
| JP2010116652A (en) * | 2008-11-14 | 2010-05-27 | Ichikawa Co Ltd | Shoe press belt |
| CN101962920A (en) * | 2009-07-21 | 2011-02-02 | 市川株式会社 | Papermaking shoe press belt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074561A (en) * | 2018-05-16 | 2020-12-11 | 第一工业制药株式会社 | Two-pack curable composition for forming thermoplastic matrix resin, matrix resin for fiber-reinforced composite material, and fiber-reinforced composite material |
| CN112074561B (en) * | 2018-05-16 | 2023-11-21 | 第一工业制药株式会社 | Two-part curable composition for forming thermoplastic matrix resin, matrix resin for fiber-reinforced composite material, and fiber-reinforced composite material |
| CN112703289A (en) * | 2018-09-18 | 2021-04-23 | 福伊特专利有限公司 | Press jacket, use thereof and press roll, shoe press and use of polyurethane for producing press jacket |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013159860A (en) | 2013-08-19 |
| CN103243603B (en) | 2015-12-09 |
| US20130192787A1 (en) | 2013-08-01 |
| EP2623667A1 (en) | 2013-08-07 |
| JP5161376B1 (en) | 2013-03-13 |
| EP2623667B1 (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101688364B (en) | Shoe press belt | |
| CN101939483B (en) | Shoe press belt for papermaking | |
| JP4444367B1 (en) | Shoe press belt for papermaking | |
| EP3101174B1 (en) | Shoe press belt | |
| CN101720370B (en) | Shoe press belt for paper making | |
| CN103243603B (en) | Papermaking shoe press belt | |
| JP6985490B2 (en) | Press sleeve and its use | |
| CN105339546A (en) | Shoe press belt for papermaking | |
| CN103243602B (en) | Papermaking shoe press belt | |
| EP3875681A1 (en) | Shoe press belt and method for producing a shoe press belt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |