CN102558486A - Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses - Google Patents
Dry-process polyurethane synthetic leather resin material for hot attaching, preparation method and uses Download PDFInfo
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- CN102558486A CN102558486A CN2011104398550A CN201110439855A CN102558486A CN 102558486 A CN102558486 A CN 102558486A CN 2011104398550 A CN2011104398550 A CN 2011104398550A CN 201110439855 A CN201110439855 A CN 201110439855A CN 102558486 A CN102558486 A CN 102558486A
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Abstract
The invention relates to dry-process polyurethane synthetic leather resin material for hot attaching, a preparation method and the uses. The polyurethane resin comprises 50 to 70 parts of components A and 30 to 50 parts of components B by weight, wherein the components A comprise 100 to 150 parts of diisocyanate, 150 to 200 parts of polyester diol, 20 to 50 parts of chain extenders and 600 to 930 parts of solvents by weight; and the components B comprise 50 to 100 parts of diisocyanate, 200 to 300 parts of polyester diol, 20 to 50 parts of chain extenders and 400 to 650 parts of solvents. The dry-process polyurethane synthetic leather resin material for hot attaching, which is formed by mixing the components A and the components B, can satisfy the requirements of hot attaching and the requirements of dry-process synthetic leather.
Description
Technical field
The present invention relates to a kind of heat posted and share dry method Synthetic Leather resin material, Preparation method and use.
Technical background
Many advantages such as that Synthetic Leather has is wear-resisting, cold-resistant, ageing-resistant, quality is soft, outward appearance is beautiful are the ideal substitute of natural leather, are widely used in industries such as clothes, shoemaking, case and bag furniture.Synthetic leather uses tackiness agent bonding in use mostly, and mostly tackiness agent commonly used is solvent-borne type, and solvent evaporates pollutes during use, and solvent also can cause corrosion to synthetic leather simultaneously, influences outward appearance and rerum natura, causes substandard products; As adopt suturing with thread management, then owing to the existence of line eye pin hole, can't be applied to require the anti-water pref of stopping property.
Though the urethane resin that dry-method chemical leather uses is linear resin, has thermoplasticity, high temperature hot pressing can self-adhesion; But because the restriction of processing conditions, common dry-method chemical leather urethane resin has higher temperature tolerance, and the synthetic leather of therefore common dry-method chemical leather urethane resin being processed carries out hot pressing and fits relatively more difficult; Temperature is too high; Damage easily goods, temperature is crossed low then causing and is fitted badly, so heat posted is share dry method Synthetic Leather resin and must be had suitable softening melt temperature.
The urethane resin molecular chain has soft section and hard section, common softening melt temperature and the high-temperature behavior that influences resin of hard section.Hard section of urethane form, contain aryl, carbamate, replacement urea groups isopolarity group by reacted POLYMETHYLENE POLYPHENYLISOCYANATE or POLYMETHYLENE POLYPHENYLISOCYANATE and chainextender.POLYMETHYLENE POLYPHENYLISOCYANATE and chainextender are very big to hard section composition influence, and hard section softening temperature of aromatic polyisocyanate reaction generation is higher than aliphatic POLYMETHYLENE POLYPHENYLISOCYANATE usually, and be short by molecular chain; No side group; The hard section softening melt temperature that chainextender that polarity is strong and POLYMETHYLENE POLYPHENYLISOCYANATE reaction generate is high, if instead the chainextender molecular chain length has side group; Polarity is low, and the hard section softening melt temperature that then generates is just low.So, can make the lower urethane resin of softening temperature through using different POLYMETHYLENE POLYPHENYLISOCYANATE, chainextender, polyester polyol to regulate the composition of urethane resin.
Iff is made synthetic leather with the lower urethane resin of softening temperature, though can satisfy the needs that heat posted is closed, but the surface can be clamminess, performances such as wear-resisting, physical strength also can't satisfy the normal use of synthetic leather.The urethane resin that the scheme that solves can adopt the urethane resin of low softening temperature to sneak into high softening temperature with certain proportion makes the dry method resin, also will consider the compatibility problem of two kinds of resins simultaneously, and the composition of regulating two kinds of resins can improve the two consistency.
In the Synthetic Leather field, not seeing at present has associated hot to fit with the patent documentation report of dry method Synthetic Leather resin.
Summary of the invention
The purpose of this invention is to provide a kind of heat posted and share dry method Synthetic Leather resin material, this resin both can satisfy the needs that heat posted is closed, and can satisfy dry-method chemical leather again to performance demands.
Another object of the present invention provides the preparation method that this heat posted is share dry method Synthetic Leather resin material.
A purpose more of the present invention provides the purposes that this heat posted is share dry method Synthetic Leather resin material.
A kind of heat posted of the present invention is share dry method Synthetic Leather resin material, by weight, comprises A component 50-70 part and B component 30-50 part,
The composition of said each material of A component is: by weight,
Vulcabond 100-150 part,
Polyester diol 150-200 part,
Chainextender 20-50 part,
Solvent 600-930 part;
The composition of said each material of B component is: by weight,
Vulcabond 50-100 part,
Polyester diol 200-300 part,
Chainextender 20-50 part,
Solvent 400-650 part.
In a preferred embodiment of the present invention, the polyester diol in the said A component is aliphatic polyester binary alcohol, aromatic polyester divalent alcohol or PCDL.
Said aliphatic polyester binary alcohol is the poly-succinic DOPCP divalent alcohol of 500-2000 for number-average molecular weight; Number-average molecular weight is the polyethylene glycol adipate divalent alcohol of 500-3000; Number-average molecular weight is the poly adipate succinic acid ester divalent alcohol of 1000-3000; Number-average molecular weight is the polyneopentyl glycol adipate divalent alcohol of 1000-3000; Number-average molecular weight be 1000-3000 gather the diethylene glycol adipate divalent alcohol; Number-average molecular weight is the polydiethylene glycol sebacate divalent alcohol of 1000-3000; The mass ratio that contains Succinic Acid and hexanodioic acid is that 40: 60 and number-average molecular weight are the mixing acid butanediol ester divalent alcohol of 1000-3000 or the dimeracid butanediol ester divalent alcohol that number-average molecular weight is 1000-3000.
Aliphatic polyester binary alcohol is preferably the dimeracid butanediol ester divalent alcohol that poly adipate succinic acid ester divalent alcohol that number-average molecular weight is 1000-2000, poly-succinic DOPCP divalent alcohol that number-average molecular weight is 1000-2000 or number-average molecular weight are 1000-2000.
Said number-average molecular weight of gathering the diethylene glycol adipate divalent alcohol is preferably 500-2000.
The lipid acid of preparation aliphatic polyester binary alcohol can be one or several mixture of Succinic Acid, hexanodioic acid, sebacic acid, dimeracid.
The divalent alcohol of preparation aliphatic polyester binary alcohol can be one or more a mixture of terepthaloyl moietie, Ucar 35,3-methyl propanediol, NSC 6366, pinakon, 3-methyl pentanediol.
The aromatic polyester divalent alcohol is that number-average molecular weight is the ethylene isophthalate divalent alcohol of 400-1000; Number-average molecular weight is the m-phthalic acid glycol ether ester divalent alcohol of 400-1000; Number-average molecular weight is the m-phthalic acid DOPCP divalent alcohol of 400-1000; Number-average molecular weight is the ethylene glycol terephthalate divalent alcohol of 400-1000; Number-average molecular weight is that terephthalic acid glycol ether ester divalent alcohol or the number-average molecular weight of 400-1000 is 400-1000 terephthalic acid DOPCP divalent alcohol.Be preferably number-average molecular weight and be a kind of in the m-phthalic acid glycol ether ester divalent alcohol of 400-750, the terephthalic acid glycol ether ester divalent alcohol that number-average molecular weight is 400-750 or both mixtures.
The acid of preparation aromatic polyester divalent alcohol can be one or several mixture of m-phthalic acid, terephthalic acid, phthalic anhydride.
The divalent alcohol of preparation aromatic polyester divalent alcohol can be one or more a mixture of terepthaloyl moietie, 3-methyl propanediol, NSC 6366, pinakon.
In a preferred embodiment of the present invention, the chainextender in the said A component is aliphatic dihydric alcohol, aromatic diamine or aliphatic diamine.
Aliphatic dihydric alcohol is terepthaloyl moietie, methyl propanediol, butyleneglycol, NSC 6366,3-methyl pentanediol, 1, one or more mixture in 6-pinakon, the glycol ether.
Aromatic diamine is a tolylene diamine, 3,3-two chloro-4,4-ditan diamines, 4; 4-diaminodiphenyl-methane, 3,5-diethyl toluene diamine, 3,5 diformazan sulfenyl tolylene diamines, 3; The mixture of one or more in the 3-dichloro benzidine is preferably 3,3-two chloro-4; 4-ditan diamines, 4,4-diaminodiphenyl-methane, 3, the mixture of one or more in the 5-diethyl toluene diamine.
Aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine, is preferably isophorone diamine or dicyclohexyl methyl hydride diamines.
In a preferred embodiment of the present invention, the vulcabond in the said B component is hexamethylene diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate, tolylene diisocyanate or diphenylmethanediisocyanate.
In a preferred embodiment of the present invention, the polyester diol in the said B component is the adipic acid type polyester diol.
In a more preferred embodiment of the present invention, the number-average molecular weight of adipic acid type polyester diol is 700-10000, is preferably 1000-3000.
The divalent alcohol of preparation polyester diol can be one or more a mixture of terepthaloyl moietie, Ucar 35,3-methyl propanediol, NSC 6366, pinakon, 3-methyl pentanediol.
In a preferred embodiment of the present invention, the chainextender in the said B component is aliphatic dihydric alcohol or aliphatic diamine.
Aliphatic dihydric alcohol is terepthaloyl moietie, methyl propanediol, butyleneglycol, NSC 6366,3-methyl pentanediol, 1, the mixture of one or more in 6-pinakon, the glycol ether.
Aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine, is preferably isophorone diamine or dicyclohexyl methyl hydride diamines.
In a preferred embodiment of the present invention, the vulcabond in said A component and the said B component is aliphatic diisocyanate and verivate or aromatic diisocyanate and verivate thereof.
In a preferred embodiment of the present invention; Aliphatic diisocyanate is 1; Hexamethylene-diisocyanate (HDI), isophorone diisocyanate (IPDI), dicyclohexyl methane diisocyanate (HMDI), 1; 4-cyclohexyl diisocyanate, norbornene alkyl diisocyanate, Methylcyclohexyl diisocyanate or cyclohexyl dimethylene diisocyanate, more preferably hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) or dicyclohexyl methane diisocyanate (HMDI).
In a preferred embodiment of the present invention, the aliphatic diisocyanate verivate is the hexamethylene diisocyanate dimer.
In a preferred embodiment of the present invention; Aromatic diisocyanate is tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), dimethyl diphenyl vulcabond, naphthalene diisocyanate or xylylene diisocyanate, is preferably tolylene diisocyanate or diphenylmethanediisocyanate.
In a preferred embodiment of the present invention, the aromatic diisocyanate verivate is liquefaction diphenylmethanediisocyanate (MDI) or toluene diisocyanate dimer, is preferably liquefaction methylenebis phenyl isocyanate (MDI).
In a preferred embodiment of the present invention, A component and said B component, said solvent is butanone, toluene, N, one or more mixing of dinethylformamide, ETHYLE ACETATE, N-Methyl pyrrolidone.
The preparation method that heat posted of the present invention is share dry method Synthetic Leather resin material is:
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into solvent simultaneously, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃); Get final product termination reaction, be the A component;
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into solvent simultaneously, treat that solvent adds, record soltion viscosity and rise to 80000-100000mPas (25 ℃); Get final product termination reaction, be the B component;
By weight, 50-70 part A and component 30-50 part B component are mixed, stir.
Heat posted of the present invention is share dry method Synthetic Leather resin material and can be used for making raincoat or rain boots.
Embodiment
Further specify the present invention through embodiment below
Embodiment
Embodiment 1
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 118kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 175kg,
Terepthaloyl moietie 23.9kg,
N, dinethylformamide 520kg,
Butanone 220kg;
(2) preparation method of component A
In having 1000 kilograms of reaction kettles of stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, terepthaloyl moietie, in nitrogen atmosphere, react temperature of reaction 70-80 ℃ by above weight; Stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 113kg,
Gather hexanodioic acid methyl propanediol ester (number-average molecular weight 2000) 275kg,
Terepthaloyl moietie 3.3kg,
1,6-pinakon 31.2kg,
N, dinethylformamide 440kg,
Butanone 195kg;
(4) preparation method of B component
In having 1000 kilograms of reaction kettles of stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, terepthaloyl moietie and 1 by above weight, the 6-pinakon reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(5) heat posted is share the preparation method of dry method Synthetic Leather resin material
With urethane resin A component 65kg and urethane resin B component 35kg, stir, make heat posted and share the dry-method chemical leather urethane resin.
Embodiment 2
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 102kg,
Polyethylene glycol adipate divalent alcohol (number-average molecular weight 2000) 140kg,
Terepthaloyl moietie 14.7kg,
1,4-butyleneglycol 9.2kg,
N, dinethylformamide 640kg,
Butanone 159kg;
(2) preparation method of component A
In having 1000 kilograms of reaction kettles of stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, terepthaloyl moietie, in nitrogen atmosphere, react temperature of reaction 70-80 ℃ by above weight; Stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(3) configuration of B component:
Urethane resin B component is made by following weight part reaction by following component, is the polyurethane resin solution of 45 weight %, and viscosity is 80000-100000mPas (25 ℃).
Diphenylmethanediisocyanate (MDI) 126.35kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 305kg,
1,4-butyleneglycol 9.53kg,
1,6-pinakon 29.15kg,
Toluene 260kg,
ETHYLE ACETATE 114kg,
Butanone 200kg;
(4) preparation method of B component
In 1000 kilograms of reaction kettles that have stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, 1,4-butyleneglycol and 1,6-pinakon by above weight; In nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into toluene simultaneously; The mixed solvent of ETHYLE ACETATE and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(5) heat posted is share the preparation method of dry method Synthetic Leather resin material
With component A 60kg and B component 40kg, under 70-80 ℃, stir, make heat posted and share the dry-method chemical leather urethane resin.
Embodiment 3
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 142.5kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 185kg,
1,4-butyleneglycol 42.9kg,
N, dinethylformamide 550.4kg,
Butanone 137.6kg;
(2) preparation method of component A
In 1000 kilograms of reaction kettles that have stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, 1,4-butyleneglycol by above weight; In nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 126.6kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 305kg,
NSC 6366 18.4kg,
1,6-pinakon 20.8kg,
N, dinethylformamide 460kg,
Butanone 116kg;
(4) preparation method of B component
In 1000 kilograms of reaction kettles that have stirring, drop into diphenylmethanediisocyanate, polyneopentyl glycol adipate, NSC 6366 and 1,6-pinakon by above weight; In nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(5) heat posted is share the preparation method of dry method Synthetic Leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make heat posted and share the dry-method chemical leather urethane resin.
Embodiment 4
(1) batching of component A
Isophorone diisocyanate (IPDI) 67.24kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 215kg,
1,4-butyleneglycol 3.43kg
Isophorone diamine 26.73kg,
N, dinethylformamide 510.3kg,
Toluene 218.7kg;
(2) preparation method of component A
In 1000 kilograms of reaction kettles that have stirring, drop into isophorone diisocyanate, poly adipate succinic acid ester, 1,4-butyleneglycol by above weight; Isophorone diamine reacts in nitrogen atmosphere, temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into N simultaneously, the mixed solvent of dinethylformamide and butanone treats that solvent adds; Record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(3) batching of B component
Diphenylmethanediisocyanate (MDI) 126.6kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 305kg,
NSC 6366 18.4kg,
1,6-pinakon 20.8kg,
N-formyl sarcolysine base pyrrolidone 460kg,
Butanone 116kg;
(4) preparation method of B component
In 1000 kilograms of reaction kettles that have stirring, drop into diphenylmethanediisocyanate, polyneopentyl glycol adipate, NSC 6366 and 1,6-pinakon by above weight; In nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(5) heat posted is share the preparation method of dry method Synthetic Leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make heat posted and share the dry-method chemical leather urethane resin.
Embodiment 5
(1) batching of component A
Diphenylmethanediisocyanate (MDI) 142.5kg,
Poly adipate succinic acid ester (number-average molecular weight 2000) 185kg,
1,4-butyleneglycol 42.9kg,
N, dinethylformamide 550.4kg,
Butanone 137.6kg;
(2) preparation method of component A
In 1000 kilograms of reaction kettles that have stirring, drop into diphenylmethanediisocyanate, poly adipate succinic acid ester, 1,4-butyleneglycol by above weight; In nitrogen atmosphere, react, temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into N simultaneously; The mixed solvent of dinethylformamide and butanone treats that solvent adds, and records soltion viscosity and rises to 80000-100000mPas (25 ℃); Get final product termination reaction, discharging;
(3) batching of B component
Isophorone diisocyanate (IPDI) 77.88kg,
Polyneopentyl glycol adipate (number-average molecular weight 2000) 195kg,
NSC 6366 7.4kg,
Isophorone diamine 30.96kg,
N, dinethylformamide 508.4kg,
ETHYLE ACETATE 217.9kg;
(4) preparation method of B component
In 1000 kilograms of reaction kettles that have stirring, drop into isophorone diisocyanate, polyneopentyl glycol adipate by above weight, NSC 6366 and isophorone diamine react in nitrogen atmosphere; Temperature of reaction 70-80 ℃, stir in the reaction process and slowly drop into N, the mixed solvent of dinethylformamide and butanone simultaneously; Treat that solvent adds; Record soltion viscosity and rise to 80000-100000mPas (25 ℃), get final product termination reaction, discharging;
(5) heat posted is share the preparation method of dry method Synthetic Leather resin material
With component A 70kg and B component 30kg, under 70-80 ℃, stir, make heat posted and share the dry-method chemical leather urethane resin.
The coating performance of this resin is investigated mainly the qualification rate of closing when using through heat posted estimate, being defined as of qualification rate: qualified samples is counted ÷ gross sample number * 100%
The heat posted that above-mentioned three embodiment obtain is share the made synthetic leather sample of dry-method chemical leather urethane resin, and carry out 180 ℃ of heat posteds respectively and close test, 100 samples of every group of test, gained test result such as following table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Sample number | 100 | 100 | 100 | 100 | 100 |
| The salable product number | 100 | 100 | 100 | 100 | 100 |
| The substandard products number | 0 | 0 | 0 | 0 | 0 |
| Qualification rate | 100％ | 100％ | 100％ | 100％ | 100％ |
Resin material of the present invention is processed the dry-method chemical leather lining, can take direct hot pressed mode to fit in use, need not to add in addition tackiness agent; Practice thrift cost; Simultaneously also avoid the common solvent type tackiness agent problem that pollutes of solvent evaporates in use, also need not linear slit, the line eye pin hole of having avoided suturing with thread management to cause; Good leak tightness is applicable to waterproof clothes such as raincoat rain boots.
Claims (19)
1. a heat posted is share dry method Synthetic Leather resin material, it is characterized in that, by weight, comprises A component 50-70 part and B component 30-50 part,
The composition of said each material of A component is: by weight,
Vulcabond 100-150 part,
Polyester diol 150-200 part,
Chainextender 20-50 part,
Solvent 600-930 part;
The composition of said each material of B component is: by weight,
Vulcabond 50-100 part,
Polyester diol 200-300 part,
Chainextender 20-50 part,
Solvent 400-650 part.
2. heat posted according to claim 1 is share dry method Synthetic Leather resin material, it is characterized in that, the polyester diol in the said A component is aliphatic polyester binary alcohol, aromatic polyester divalent alcohol or PCDL.
3. heat posted according to claim 2 is share dry method Synthetic Leather resin material; It is characterized in that aliphatic polyester binary alcohol is that the mass ratio that gathers polydiethylene glycol sebacate divalent alcohol that diethylene glycol adipate divalent alcohol, number-average molecular weight are 1000-3000, contains Succinic Acid and hexanodioic acid of 1000-3000 is that 40: 60 and number-average molecular weight are the mixing acid butanediol ester divalent alcohol of 1000-3000 or the dimeracid butanediol ester divalent alcohol that number-average molecular weight is 1000-3000 for number-average molecular weight is the poly-succinic DOPCP divalent alcohol of 500-2000, polyethylene glycol adipate divalent alcohol that number-average molecular weight is 500-3000, number-average molecular weight is 1000-3000 poly adipate succinic acid ester divalent alcohol, polyneopentyl glycol adipate divalent alcohol, number-average molecular weight that number-average molecular weight is 1000-3000.
4. heat posted according to claim 2 is share dry method Synthetic Leather resin material; It is characterized in that the terephthalic acid DOPCP divalent alcohol that the ethylene glycol terephthalate divalent alcohol that the aromatic polyester divalent alcohol is number-average molecular weight is the ethylene isophthalate divalent alcohol of 400-1000, m-phthalic acid glycol ether ester divalent alcohol that number-average molecular weight is 400-1000, number-average molecular weight is 400-1000 a m-phthalic acid DOPCP divalent alcohol, number-average molecular weight is 400-1000, the terephthalic acid glycol ether ester divalent alcohol that number-average molecular weight is 400-1000 or number-average molecular weight are 400-1000.
5. heat posted according to claim 1 is share dry method Synthetic Leather resin material, it is characterized in that, the chainextender in the said A component is aliphatic dihydric alcohol, aromatic diamine or aliphatic diamine.
6. heat posted according to claim 5 is share dry method Synthetic Leather resin material; It is characterized in that; Aliphatic dihydric alcohol is terepthaloyl moietie, methyl propanediol, butyleneglycol, NSC 6366,3-methyl pentanediol, 1, the mixture of one or more in 6-pinakon, the glycol ether.
7. heat posted according to claim 5 is share dry method Synthetic Leather resin material, it is characterized in that, aromatic diamine is a tolylene diamine, 3; 3-two chloro-4; 4-ditan diamines, 4,4-diaminodiphenyl-methane, 3,5-diethyl toluene diamine, 3; 5 diformazan sulfenyl tolylene diamines, 3, the mixture of one or more in the 3-dichloro benzidine.
8. heat posted according to claim 5 is share dry method Synthetic Leather resin material, it is characterized in that, aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine or quadrol or cyclohexanediamine.
9. heat posted according to claim 1 is share dry method Synthetic Leather resin material, it is characterized in that, the polyester diol in the said B component is that number-average molecular weight is the adipic acid type polyester diol of 700-10000.
10. heat posted according to claim 1 is share dry method Synthetic Leather resin material, it is characterized in that, the chainextender in the said B component is aliphatic dihydric alcohol or aliphatic diamine.
11. heat posted according to claim 10 is share dry method Synthetic Leather resin material; It is characterized in that; Aliphatic dihydric alcohol is terepthaloyl moietie, methyl propanediol, butyleneglycol, NSC 6366,3-methyl pentanediol, 1, the mixture of one or more in 6-pinakon, the glycol ether.
12. heat posted according to claim 10 is share dry method Synthetic Leather resin material, it is characterized in that, aliphatic diamine is isophorone diamine, dicyclohexyl methyl hydride diamines, hexanediamine, quadrol or cyclohexanediamine.
13. heat posted according to claim 1 is share dry method Synthetic Leather resin material, it is characterized in that, the vulcabond in said A component and the B component is aliphatic diisocyanate and verivate or aromatic diisocyanate and verivate thereof.
14. heat posted according to claim 13 is share dry method Synthetic Leather resin material; It is characterized in that; Aliphatic diisocyanate is 1; Hexamethylene-diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate, 1,4-cyclohexyl diisocyanate, norbornene alkyl diisocyanate, Methylcyclohexyl diisocyanate or cyclohexyl dimethylene diisocyanate.
15. heat posted according to claim 13 is share dry method Synthetic Leather resin material, it is characterized in that, the aliphatic diisocyanate verivate is the hexamethylene diisocyanate dimer.
16. heat posted according to claim 13 is share dry method Synthetic Leather resin material; It is characterized in that aromatic diisocyanate is tolylene diisocyanate, diphenylmethanediisocyanate, dimethyl diphenyl vulcabond, naphthalene diisocyanate or xylylene diisocyanate.
17. heat posted according to claim 13 is share dry method Synthetic Leather resin material, it is characterized in that, the aromatic diisocyanate verivate is liquefaction diphenylmethanediisocyanate or toluene diisocyanate dimer.
18. heat posted according to claim 1 is share dry method Synthetic Leather resin material; It is characterized in that; Solvent in said A component and the B component is butanone, toluene, N, the mixture of one or more of dinethylformamide, ETHYLE ACETATE, N-Methyl pyrrolidone.
19. the described heat posted of claim 1-18 is share the preparation method of dry method Synthetic Leather resin material, it is characterized in that,
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into solvent simultaneously, treat that solvent adds, record soltion viscosity and rise under 25 ℃; 80000-100000mPas gets final product termination reaction, is the A component;
With vulcabond, polyester diol, chainextender, in nitrogen atmosphere, react temperature of reaction 70-80 ℃; Stir in the reaction process and slowly drop into solvent simultaneously, treat that solvent adds, record soltion viscosity and rise under 25 ℃; 80000-100000mPas gets final product termination reaction, is the B component;
By weight, 50-70 part A and component 30-50 part B component are mixed, stir.
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