CN101803806A - Elastic protector - Google Patents
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- CN101803806A CN101803806A CN201010127779A CN201010127779A CN101803806A CN 101803806 A CN101803806 A CN 101803806A CN 201010127779 A CN201010127779 A CN 201010127779A CN 201010127779 A CN201010127779 A CN 201010127779A CN 101803806 A CN101803806 A CN 101803806A
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Abstract
The invention relates to an elastic protector which is suitable for a user to wear to prevent the body from being damaged and comprises at least one elastic fabric layer extending along at least one direction and one waterborne polyurethane foaming body layer which is lamellar, is combined to the elastic fabric layer and is provided with an opened cell structure, wherein the waterborne polyurethane foaming body layer is made from a foaming raw material containing waterborne polyurethane which can dispread in a water solution, wherein the waterborne polyurethane has the thickness equal to or greater than 1 mm, the maximum elongation of 200% to 450%, the elastic modulus of 2 to 7 kgf/cm<2>, the tension strength equal to or greater than 4kgf/cm<2> and the density of 180 to 600 g/l.
Description
Technical field
The present invention relates to a kind of elastic protector, particularly relate to a kind of elastic protector (resilent protective wrap) that is used to wear protection and supports a user's body part.
Background technology
Existing elastic protector; for example; wrist strap (wrist band), hand protector (hand braces), waistband (waist band) and ankle support protector (ankle support) etc.; can treat a user, movable health, motion and other be used for wearing when movable coat this user the health privileged site with the protection limbs, especially in order to the protection joint part.Existing elastic protector is normally made by the fabric material of most layers, and has two layers of telescopic tissue layer, and one deck is folded between described tissue layer and by synthetic rubber or the made rubber layer of neoprene.This rubber material has high resiliency and retractility can be provided, and can show preferable recovery (restoring force) and provide enough compressibility with the body part of complying with this user, in addition, this rubber material can also provide higher durability by high-tensile strength intensity.Yet, use the rubber material to have the shortcoming that causes environmental pollution easily as raw material and processing procedure thereof, also cause the user more uncomfortable when dressing this protector of use and be difficult for heat radiation with character airtight and that weight is heavier.
Aqueous polyurethane (water-based polyurethane) is not for containing the material of solvent and environmental protection.The foaming body of the open foam structure of being made with aqueous polyurethane of tool has gas permeability, and has been widely used on the textile product that synthetic leather goods and other need not possess high resiliency and good recovery.At present, the foaming body of the open foam structure of being made with aqueous polyurethane of tool is made into thickness usually and uses less than the 1mm coat.
This shows that above-mentioned existing elastic protector obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel elastic protector, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, a kind of environmental protection is provided and has good heat radiation and the elastic protector of gas permeability.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of elastic protector according to the present invention's proposition, the body part that is fit to be worn on a user is injured to prevent, comprising one deck at least can be along the flexible elastic fabric layer of at least one direction, reach the aqueous polyurethane foaming body layer that one deck forms the synusia shape and is combined in the open foam structure of tool on this elastic fabric layer, this aqueous polyurethane foaming body layer is made by a foaming raw material; This foaming raw material comprises that one can be scattered in the aqueous polyurethane in the aqueous solution, and the thickness of this polyurethane foaming body layer is more than or equal to 1mm, and have the modulus of elasticity (modulus of elasticity) of 200%～450% maximum percentage elongation (largest elongateion), 2～7kgf/cm2, more than or equal to the tension intensity (tensile strength) of 4kgf/cm2, and the density (density) of 180～600g/l.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, aforesaid elastic protector, wherein the maximum percentage elongation of this polyurethane foaming body layer is 250%～350%.
Preferably, aforesaid elastic protector, wherein the tension intensity of this polyurethane foaming body layer is more than or equal to 6kgf/cm2.
Preferably, aforesaid elastic protector, wherein the modulus of elasticity of this polyurethane foaming body layer is 3～6kgf/cm2.
Preferably, aforesaid elastic protector, wherein the density of this polyurethane foaming body layer is 200～450g/l.
Preferably, aforesaid elastic protector, wherein the thickness of this polyurethane foaming body layer is 1～6mm.
Preferably, aforesaid elastic protector, the foaming raw material of wherein making this polyurethane foaming body layer also comprises a blowing agent component, a cross-linking agent component and a filler component.
Preferably, aforesaid elastic protector wherein contains mica particles in this filler component.
Preferably, aforesaid elastic protector wherein contains nano particle in this filler component.
Preferably, aforesaid elastic protector, wherein this elastic fabric layer is unidirectional Woven stretch fabric, and flexible along a length direction of this elastic protector.
Preferably, aforesaid elastic protector, wherein this elastic fabric layer is the bi-directional expansion fabric, and flexible along a length direction and a width of this elastic protector simultaneously.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The aqueous polyurethane foaming body of the open foam structure of a kind of tool that proposes according to the present invention is made by a foaming raw material; This foaming raw material comprises that one can be scattered in the aqueous polyurethane in the aqueous solution, and the thickness of this polyurethane foaming body is more than or equal to 1mm, and have the modulus of elasticity of 200%～450% maximum percentage elongation, 2～7kgf/cm2, more than or equal to the tension intensity of 4kgf/cm2, and the density of 180～600g/l.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, the aqueous polyurethane foaming body of the open foam structure of aforesaid tool, wherein this foaming raw material also comprises a blowing agent component, a cross-linking agent component and a filler component.
Preferably, the aqueous polyurethane foaming body of the open foam structure of aforesaid tool contains mica particles in this filler component.
Preferably, the aqueous polyurethane foaming body of the open foam structure of aforesaid tool contains nano particle in this filler component.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, elastic protector of the present invention has following advantage and beneficial effect at least:
1, elastic protector of the present invention is by the aqueous polyurethane foaming body layer in conjunction with this elastic fabric layer and the open foam structure of this tool, still can be by providing the elastic telescopic characteristic by this elastic fabric layer, and utilize the percentage elongation of this foaming body, characteristic such as modulus of elasticity and tension intensity, this elastic protector is still had meet practical performance, this foaming body layer open foam structure then make this elastic protector that preferable thermal diffusivity and gas permeability and in light weight are arranged, and more comfortable wearing impression can be provided, in addition, because this foaming body layer is made by not solvent-laden water-based PU, makes the present invention have the characteristic of material than environmental protection.
2, the aqueous polyurethane foaming body of the open foam structure of tool of the present invention is by the goods of this foaming body being made predetermined thickness, and give this foaming body predetermined material characteristics such as percentage elongation, modulus of elasticity and tension intensity, make this foaming body have durable and can make the economic worth of practical goods, in addition, because this foaming body layer is made by not solvent-laden water-based PU, and with meeting the environmental protection demand characteristics.
In sum, a kind of environmental protection of the present invention and have good heat radiation and the elastic protector of gas permeability.The present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is one and uses schematic diagram, illustrates that one first preferred embodiment of elastic protector of the present invention is a pattern of making a knee protector;
Fig. 2 is a profile of being got along the line A-A among Fig. 1; And
Fig. 3 is one and uses schematic diagram, illustrates that one second preferred embodiment of elastic protector of the present invention is a pattern of making a wrist protector.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
Before the present invention is described in detail, be noted that in the following description content that similar elements is to represent with identical numbering.
Consult Fig. 1 and Fig. 2, one first preferred embodiment for elastic protector of the present invention, in the present embodiment, this elastic protector is the pattern that is made into a knee protector 1, this knee protector 1 comprises by the 10 formed most layer fabric construction of tissue layer under tissue layer on one deck 10 and one deck, and a polyurethane foaming body layer 20 that forms layer structure and be positioned at the open foam structure of tool of 10 of this upper and lower tissue layer.
This upper and lower tissue layer 10 is made by the fabric material of tool retractility, and this fabric can be woven fabric or looped fabric.Wherein, described tissue layer 10 can be unidirectional Woven stretch fabric, and can be flexible along a length direction of this knee protector 1, also can be the bi-directional expansion fabric, and flexible along a length direction and a width of this knee protector 1 simultaneously.
The polyurethane foaming body layer 20 of the open foam structure of this tool is made by a foaming raw material, and this foaming raw material comprises that one can be scattered in the aqueous polyurethane (polyurethane abbreviates PU as) in the aqueous solution.Used in the present invention water-based PU can be prepared from via a polyol component and a crosslinking agent.This polyol component can comprise a PPG or a PEPA.This crosslinking agent can comprise an amine resins (amine resin) or isocyanide aminated compounds (isocyanane compound).But the kind of this polyalcohol and this crosslinking agent should be not limited, and any polyol component or crosslinking agent that is suitable for being prepared into water-based PU can both use in the present invention.
Except water-based PU, the foaming raw material of the polyurethane foaming body layer 20 of the open foam structure of this tool also comprises other constituents, for example, a blowing agent component (foaming agent), a foaming stabiliser component (foam stabilizer), a thickener component (thickener), a colorant component (pigment) and a filler component (filler or extender) etc.This blowing agent component, foaming stabiliser component, thickener component, colorant component and filler component can be selected such constituent that generally is used for preparing the PU expanded moldings for use.Employed in the present invention filler component can be wood powder (wood flour), calcium carbonate or mica etc.And preferably, this filler component is a nano particle.
This aqueous polyurethane foaming body layer 20 can be made with existing mode.In the present embodiment, the constituent of this foaming raw material is to make bubble machine (foaming mixer) by one to mix and foaming.At last, by existing laminating (lamination method) the foaming body germule that had foamed is combined on this tissue layer 10 with synusia shape pattern.For example, this foaming body germule can be laid on one of them surface of this tissue layer 10 that imports along with a conveyer (conveyor), and, when continuing along with this conveyer when mobile, can remove moisture in this foaming body germule by heating.Because moisture is to remove gradually with progressive heating mode, so can another layer tissue layer 10 be layed in the surface of this foaming body germule when this foaming body germule becomes semisolid (semisolid) state.Then, continue again this foaming body germule heating up to its complete maturation sclerosis.Whereby, treat the cooling of this foaming body germule after, just can under the situation of not using binding agent, form the polyurethane foaming body layer 20 that the while combines with this upper and lower tissue layer 10.
In manufacture process, can utilize a scraper (doctor blade) control to be laid on the thickness of the foaming body germule on this tissue layer 10.Preferably, the thickness of this polyurethane foaming body layer 20 is more than or equal to 1mm, and more preferably, the thickness of this polyurethane foaming body layer 20 is 1～6mm, and best, the thickness of this polyurethane foaming body layer 20 is 2～5mm.
The foaming degree of this polyurethane foaming body layer 20 or density can these be made the foamed time of bubble machine or this foaming raw material and adjust via control.Usually, when the density of this polyurethane foaming body layer 20 reduced, its maximum percentage elongation can increase, but its tension intensity and this modulus of elasticity will reduce.When the density of this polyurethane foaming body layer 20 increased, then its tension intensity and this modulus of elasticity can increase, but its maximum percentage elongation can reduce.Therefore, the density of this polyurethane foaming body layer 20 is preferably in the scope that is controlled at 180～600g/l, and Geng Jiaze is controlled in the scope of 200～450g/l.
When this elastic protector is worn on a user on one's body the time, can provide preferable compactness and enough compressibility to this user in order to make this elastic protector, need make this polyurethane foaming body layer 20 have 2～7kgf/cm
2Modulus of elasticity, preferably, the scope of this modulus of elasticity is 3～6kgf/cm
2, more preferably, the scope of this modulus of elasticity is 4.0～5.5kgf/cm
2If the springform numerical value of this polyurethane foaming body layer 20 is lower than 2kgf/cm
2, will cause this elastic protector too lax and can't provide preferable compactness with enough coating protection and wear pressure to this user.If the springform numerical value of this polyurethane foaming body layer 20 is higher than 7kgf/cm
2, will cause this elastic protector too tight and more uncomfortable when causing this user to dress.
The preferred range of the maximum percentage elongation of this polyurethane foaming body layer 20 is 200%～450%, and better then is 250%～350%.If maximum percentage elongation is lower than 200%, then this polyurethane foaming body layer 20 can't provide enough telescopic resiliences, and can cause this elastic protector too tight when dressing use.If maximum percentage elongation is higher than 450%; then the telescopic resilience of this polyurethane foaming body layer 20 is too high, makes this elastic protector that enough compactnesses can't be provided, so; when this elastic protector is worn on this user's particular joint position, can't provide enough overfill protections to this joint part.
Make its tension intensity more than or equal to 4kgf/cm in order to make this polyurethane foaming body layer 20 have enough durabilities, to be preferably
2, Geng Jiaze makes its tension intensity more than or equal to 6kgf/cm
2
Consult Fig. 3, be one second preferred embodiment with elastic protector of the present invention, in the present embodiment, this elastic protector is the pattern that is made into a wrist protector 3.This wrist protector 3 comprises equally by two layers of tissue layer, 10 formed most layer fabric construction, and one deck polyurethane foaming body layer 20.
Further, will further specify the elastic foam layer 20 of the open foam structure of this tool by the following example.Only the following stated person is only for offering some clarification on embodiments of the invention, when not limiting scope of the invention process with this.
Embodiment
Be used to prepare the foaming raw material of the elastic foam of the open foam structure of tool
Prescription (1)
The PPG of getting 100 weight portions (comprises the Impranil LP RSC 1380 of 40 weight portions and the Impranil DLU of 60 weight portions (all available from Bayer (Bayer), particle diameter is 200～300nm, and solid (solid content) content is 60%) mix with following constituent:
Weight with total solid of this polyalcohol is benchmark, 2～8 parts by weight of cross-linking agent (TDIDesmodur N3900 is available from Bayer);
Weight with total solid of this polyalcohol is benchmark, the blowing agent of 2～6 weight portions (succinate, Stockal SR is available from Bozzetto Group);
Weight with total solid of this polyalcohol is benchmark, the foaming stabiliser of 2～8 weight portions (Stockal STA is available from Bozzetto Group);
Weight with total solid of this polyalcohol is benchmark, the thickener of 1～5 weight portion (BorchiGel ALA is available from OMG Borchers Gmbh);
Weight with total solid of this polyalcohol is benchmark, the white colorant of 3～6 weight portions; And the filler of 1～4 weight portion.
Prescription (2)
Get 100 weight portions polyester polyol (comprising the Impranil LP RSC 1554 of 70 weight portions and the Impranil LP RSC 1537 of 30 weight portions (all available from Bayer, particle diameter is 200-300nm, and solid content is 60%) mixes with following constituent:
Weight with total solid of this polyalcohol is benchmark, 2～8 parts by weight of cross-linking agent (TDIDesmodur N3900 is available from Bayer);
Weight with total solid of this polyalcohol is benchmark, the blowing agent of 5～10 weight portions (Dicrylan FLN is available from Huntsman);
Weight with total solid of this polyalcohol is benchmark, the thickener of 1～5 weight portion (Mirox Am is available from Bozzetto Group);
Weight with total solid of this polyalcohol is benchmark, the white colorant of 3～6 weight portions; And the filler of 1～4 weight portion.
Make polyurethane foaming body
With each constituent among the embodiment 1～12 be dosed into respectively one make mix in the bubble machine with the foaming.The mixture germule that each embodiment had been foamed is laid on the release base material forming a foaming body layer, and with progressive heating mode be heated to gradually temperature about 140 ℃ so that moisture in this foaming body germule, remove fully.The thickness that is laid on the foaming body layer on this release base material is to use a scraper (doctor blade) control.
Carry out the test of tension intensity, maximum percentage elongation and modulus of elasticity with the CNS-3553 standard method by embodiment 1～12 prepared sample.The character of described sample is shown in table 1～3.
Table 1
| Embodiment | Filler | Thickness (mm) | Density (g/l) | Tension intensity (kgf/cm 2) | Maximum percentage elongation (%) | Modulus of elasticity (at 200%) (kgf/cm 2) |
| ??1??2??3??4 | |
??3.0??3.0??3.0??3.0 | ??230??230??230??230 | ??8.184??7.478??6.721??7.923 | ??297.628??318.878??262.502??311.503 | ??5.22??4.36??5.15??4.91 |
Table 2
| Embodiment | Filler | Thickness (mm) | Density (g/l) | Tension intensity (kgf/cm 2) | Maximum percentage elongation (%) | Modulus of elasticity (at 200%) (kgf/cm 2) |
| ??5??6??7??8 | |
??2.3??2.3??2.3??2.3 | ??159??306??459??609 | ??4.648??7.289??10.08??10.932 | ??431.477??366.047??339.798??269.625 | ??2.14??3.51??5.00??6.376 |
Table 3
| Embodiment | Filler | Thickness (mm) | Density (g/l) | Tension intensity (kgf/cm 2) | Maximum percentage elongation (%) | Modulus of elasticity (at 200%) (kgf/cm 2) |
| ??9??10??11??12 | Mica 2% mica 3% mica 5% mica 7% | ??2.3??2.3??2.3??2.3 | ??240??238??236??236 | ??5.147??4.784??4.421??4.189 | ??345.755??342.003??333.294??313.211 | ??2.69??2.80??2.69??3.03 |
The result of table 1 shows that the tension intensity of embodiment 1 and modulus of elasticity are higher than embodiment 2～4.The sample that embodiment 1 is described in view of the above can cicada provide preferable compactness and compressibility, and can not cause uncomfortable that the user uses.
The result of table 2 shows that when the density of this polyurethane foaming body increased, its tension intensity and modulus of elasticity were also along with increase, and maximum percentage elongation is then along with minimizing.
The result of table 3 shows, is added on the character that mica content in this polyurethane foaming body can influence this polyurethane foaming body.
Conclude above-mentioned; elastic protector of the present invention comprises the formed foaming body layer of polyurethane foaming body of the open foam structure of tool; therefore; prop up the overfill protection articles for use compared to existing not have the made wrist protector or an ankle of rubber of gas permeability; can provide preferable thermal diffusivity with ventilative, and the light weight effect is arranged.In addition, do not contain solvent, make elastic protector of the present invention also have the advantage that meets environmental protection owing to make the material of this polyurethane foaming body.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (15)
1. elastic protector, the body part that is fit to be worn on a user is injured to prevent, comprising one deck at least can be along the flexible elastic fabric layer of at least one direction, reach the aqueous polyurethane foaming body layer that one deck forms the synusia shape and is combined in the open foam structure of tool on this elastic fabric layer, this aqueous polyurethane foaming body layer is made by a foaming raw material; It is characterized in that:
This foaming raw material comprises that one can be scattered in the aqueous polyurethane in the aqueous solution, and the thickness of this polyurethane foaming body layer is more than or equal to 1mm, and has 200%～450% maximum percentage elongation, 2～7kgf/cm
2Modulus of elasticity, more than or equal to 4kgf/cm
2Tension intensity, and the density of 180～600g/l.
2. elastic protector as claimed in claim 1 is characterized in that: the maximum percentage elongation of this polyurethane foaming body layer is 250%～350%.
3. elastic protector as claimed in claim 1 is characterized in that: the tension intensity of this polyurethane foaming body layer is more than or equal to 6kgf/cm
2
4. elastic protector as claimed in claim 1 is characterized in that: the modulus of elasticity of this polyurethane foaming body layer is 3～6kgf/cm
2
5. elastic protector as claimed in claim 1 is characterized in that: the density of this polyurethane foaming body layer is 200～450g/l.
6. elastic protector as claimed in claim 1 is characterized in that: the thickness of this polyurethane foaming body layer is 1～6mm.
7. elastic protector as claimed in claim 1 is characterized in that: the foaming raw material of making this polyurethane foaming body layer also comprises a blowing agent component, a cross-linking agent component and a filler component.
8. elastic protector as claimed in claim 7 is characterized in that: contain mica particles in this filler component.
9. elastic protector as claimed in claim 7 is characterized in that: contain nano particle in this filler component.
10. elastic protector as claimed in claim 1 is characterized in that: this elastic fabric layer is unidirectional Woven stretch fabric, and flexible along a length direction of this elastic protector.
11. elastic protector as claimed in claim 1 is characterized in that: this elastic fabric layer is the bi-directional expansion fabric, and flexible along a length direction and a width of this elastic protector simultaneously.
12. the aqueous polyurethane foaming body of the open foam structure of tool is made by a foaming raw material; It is characterized in that:
This foaming raw material comprises that one can be scattered in the aqueous polyurethane in the aqueous solution, and the thickness of this polyurethane foaming body is more than or equal to 1mm, and has 200%～450% maximum percentage elongation, 2～7kgf/cm
2Modulus of elasticity, more than or equal to 4kgf/cm
2Tension intensity, and the density of 180～600g/l.
13. the aqueous polyurethane foaming body of the open foam structure of tool as claimed in claim 12 is characterized in that: this foaming raw material also comprises a blowing agent component, a cross-linking agent component and a filler component.
14. the aqueous polyurethane foaming body of the open foam structure of tool as claimed in claim 13 is characterized in that: contain mica particles in this filler component.
15. the aqueous polyurethane foaming body of the open foam structure of tool as claimed in claim 13 is characterized in that: contain nano particle in this filler component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127779.5A CN101803806B (en) | 2010-03-08 | 2010-03-08 | elastic protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127779.5A CN101803806B (en) | 2010-03-08 | 2010-03-08 | elastic protector |
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| Publication Number | Publication Date |
|---|---|
| CN101803806A true CN101803806A (en) | 2010-08-18 |
| CN101803806B CN101803806B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010127779.5A Expired - Fee Related CN101803806B (en) | 2010-03-08 | 2010-03-08 | elastic protector |
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| US3652747A (en) * | 1969-03-17 | 1972-03-28 | Dainippon Ink & Chemicals | Process for manufacturing synthetic leather |
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| CN1189171A (en) * | 1995-06-07 | 1998-07-29 | H.B.福勒许可和财务有限公司 | Aqueous non-gelling anionic polyurethane dispersions and process for their manufacture |
| EP1279762A2 (en) * | 2001-07-23 | 2003-01-29 | Koatsu Cloth Co., Ltd. | Sheet structure for leather-like material with surface structure and method for manufacturing the same |
| WO2004076154A1 (en) * | 2003-02-27 | 2004-09-10 | Porvair International Limited | Foam membranes and laminates |
-
2010
- 2010-03-08 CN CN201010127779.5A patent/CN101803806B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| GB1171932A (en) * | 1965-11-01 | 1969-11-26 | Freudenberg Carl | Coated Articles. |
| US3652747A (en) * | 1969-03-17 | 1972-03-28 | Dainippon Ink & Chemicals | Process for manufacturing synthetic leather |
| US5095069A (en) * | 1990-08-30 | 1992-03-10 | Ppg Industries, Inc. | Internally-curable water-based polyurethanes |
| CN1189171A (en) * | 1995-06-07 | 1998-07-29 | H.B.福勒许可和财务有限公司 | Aqueous non-gelling anionic polyurethane dispersions and process for their manufacture |
| EP1279762A2 (en) * | 2001-07-23 | 2003-01-29 | Koatsu Cloth Co., Ltd. | Sheet structure for leather-like material with surface structure and method for manufacturing the same |
| WO2004076154A1 (en) * | 2003-02-27 | 2004-09-10 | Porvair International Limited | Foam membranes and laminates |
Non-Patent Citations (5)
| Title |
|---|
| 刘梅: ""浅谈水性聚氨酯改性"", 《河北纺织》, no. 4, 30 December 2008 (2008-12-30), pages 84 - 88 * |
| 寿崇琦，娄嵩，尚盼: ""水性聚氨酯的研究综述"", 《国外建材科技》, vol. 28, no. 4, 15 August 2007 (2007-08-15), pages 1 - 6 * |
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| Publication number | Publication date |
|---|---|
| CN101803806B (en) | 2015-08-19 |
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