CN102939393A - Process for producing leather - Google Patents
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- CN102939393A CN102939393A CN2011800290776A CN201180029077A CN102939393A CN 102939393 A CN102939393 A CN 102939393A CN 2011800290776 A CN2011800290776 A CN 2011800290776A CN 201180029077 A CN201180029077 A CN 201180029077A CN 102939393 A CN102939393 A CN 102939393A
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- alcoxylates
- leather
- mixture
- triazine
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
A process for producing leather comprises treating a wet blue, a wet white or a pelt in an aqueous float with a mixture of (A) at least one alkoxylate of at least one triazine having at least two functional groups per molecule, and (B) at least one alkoxylate of ammonia or at least one compound having at least two functional groups selected from primary or secondary amino groups and hydroxyl groups.
Description
The present invention relates to a kind of method of producing leather, be included in the mixture process wet blue that contains in the water bath shampoo with following compound, explain oneself wet pelt or pelt:
(A) at least a per molecule has at least a alcoxylates of the triazine of at least two functional groups, and
(B) alcoxylates of at least a ammonia or at least aly have at least two compounds that are selected from uncle or the functional group of secondary amino group and hydroxyl.
Deep variation has occured in leather industry in recent years.People have given very large importance for development environment close friend's leather agent such as tanning agent and retanning agent.The release of formaldehyde is not only all extremely wished in the leather production process but also in the situation of leather end product.Therefore, developed tanning agent and tanning material to allow producing low formaldehyde leather, example is glutaraldehyde.
Leather must satisfy many requirements, but most of tanning agent and retanning agent are not best terms of settlement.The example that requires is machinery and the tactile property of leather, the penetration degree of dyeing, uniformity coefficient and brightness, and heat-resisting yellowing and photic yellowing.
WO 2008/110532 discloses the alkoxylate melamine that can be used as tanning agent and more specifically be used as retanning agent.
Yet, usually need improved leather softness and more comfortable leather hand feeling.
We find that this purpose is by beginning defined method-also referred to as the inventive method-realization.
The inventive method by wet blue, explain oneself wet pelt or pelt begins.The pelt that is used for the object of the invention is rawhide or the dead animal fur of unhairing and if possible exfoliation, for example fur of dead milk cow, pig, goat or stag.For the inventive method, animal be for example by butcher kill or natural death unimportant.Rawhide and the fur of dead animal may pass through the ordinary method pre-treatment.Pretreated ordinary method for example comprises liming, deliming, softening and acidleach and also has power operation, for example fleshing of rawhide or fur.
The inventive method is undertaken by processing in containing water bath shampoo.Containing water bath shampoo is the aqueous formulation that its liquid portion is made of water substantially.Contain water bath shampoo and can comprise one or more organic solvents, for example ethanol, Virahol or ethylene glycol.Preferably contain water bath shampoo and comprise less than 5 % by weight based on water, be more preferably less than the organic solvent of 0.5 % by weight.The water bath shampoo that contains that is used for the object of the invention does not very particularly preferably comprise any organic solvent.
The inventive method is undertaken by the mixture process with following compound:
(A) at least a per molecule has at least a alcoxylates of the triazine of at least two functional groups, also referred to as alcoxylates (A), and
(B) alcoxylates of at least a ammonia or at least a compound with at least two functional groups, also referred to as alcoxylates (B), wherein said functional group is selected from uncle or secondary amino group and hydroxyl.
Alcoxylates (A) in the context of the invention for per molecule have the triazine of at least two functional groups-referred to as triazine (a)-with the functional group of each triazine (a) be one or the oxyalkylene of many equivalents, preferred C
2-C
5Oxyalkylene, ethylene oxide, 1 for example, 2-propylene oxide, 1,2-oxybutylene or 1,2-oxidation amylene or above-mentioned C
2-C
5One or more mixture in the oxyalkylene is preferably with one or the reaction product of the ethylene oxide of many equivalents.
In a scheme of the present invention, alcoxylates (A) uses triazine (a) and is the ethylene oxide of 80-99.9 % by weight and the propylene oxide of 0.1-50 % by weight based on the total amount of alcoxylates (A), the mixture preparation of preferred at the most 20 % by weight propylene oxides.
As the functional group of triazine (a), for example can mention S-H group, hydroxyl and amino, the latter can be uncle or secondary amino group, preferred primary amino.The functional group of triazine (a) can be identical or different and they for example can be NH
2Group and OH group, preferably they are identical.Described functional group can directly or via spacer be connected in triazine ring; Preferably they are directly connected in triazine ring.
Triazine (a) can be with two or more, preferred 2 or 3 functional groups.
In one embodiment of the invention, alcoxylates (A) is selected from the alcoxylates of the compound of at least a general formula (I):
R wherein
1Be selected from:
NH
2，
Branching or preferred nonbranched C
1-C
10Alkyl, for example methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl, n-pentyl, isopentyl, sec.-amyl sec-pentyl secondary amyl, neo-pentyl, 1,2-dimethyl propyl, isopentyl, n-hexyl, isohexyl, Sec-Hexyl, n-heptyl, n-octyl, n-nonyl, positive decyl more specifically are methyl, normal-butyl or n-nonyl; And
C
6-C
14Aryl, for example 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, preferred phenyl, it is not substituted or separately by C
1-C
4Alkyl replaces one or many.
In one embodiment of the invention, alcoxylates (A) is selected from the alcoxylates of the triazine (a) that per molecule has at least two primary aminos.
The particularly preferably example of triazine (a) is benzoguanamine, acetylguanamine, caprinoyl guanamines (caprinoguanamin) and more specifically is melamine.
When triazine (a) with one or more NH
2During group, these NH in the alcoxylates (A)
2One or two proton of group can be substituted by alkoxide group; Preferred two protons are all substituted by alkoxide group.
In one embodiment of the invention, triazine (a) is the 1-50 molecule based on each functional group, preferred 1-20 molecule, more preferably the oxyalkylene alkoxylate of 1-10 molecule.
Alcoxylates (B) be for the purpose of the present invention ammonia or at least a compound with at least two functional groups-referred to as compound (b)-with functional group based on each compound (b) be one or the oxyalkylene of many equivalents, more specifically be C
2-C
5Oxyalkylene, ethylene oxide, 1 for example, 2-propylene oxide, 1,2-oxybutylene or 1,2-oxidation amylene or above-mentioned C
2-C
5One or more mixture in the oxyalkylene is preferably with one or the reaction product of the ethylene oxide of many equivalents.
Be understood that compound (b) is different from triazine (a).
In a scheme of the present invention, alcoxylates (B) uses compound (b) and based on the mixture preparation as the propylene oxide of the ethylene oxide of 80-99.9 % by weight and 0.1-20 % by weight of whole amounts of alcoxylates (B).
In one embodiment of the invention, compound (b) is the 1-50 molecule based on each functional group, preferred 1-20 molecule, more preferably the oxyalkylene alkoxylate of 1-10 molecule.
The example of compound (b) is glycol, triol, tetrol, have amino alcohol, mercaptoalcohol, uncle or the secondary diamine of at least one uncle or secondary amino group, altogether have triamine, other higher alcoholss such as pentol and six alcohol of 3 uncles or secondary amino group.
The example of amino alcohol is amino phenol, the N of thanomin, α-amino isopropyl alcohol, isomery, N-diethanolamine, (2-hydroxyethyl)methylamine), N methyldiethanol amine, N-methylamino phenol, trolamine, three (methylol) aminomethane, tri-isopropanolamine and N, the N-dimethylethanolamine.
Suitable diol, triol and higher alcohols (polyvalent alcohol) are such as tetrol, the example of pentol and six alcohol is ethylene glycol, glycol ether, propylene glycol, dipropylene glycol, 1, ammediol, 1, the 4-butyleneglycol, neopentyl glycol, 1, the 5-pentanediol, the 3-methyl isophthalic acid, the 5-pentanediol, 1, the 6-hexylene glycol, 1, the 9-nonanediol, the 2-methyl isophthalic acid, the 8-ethohexadiol, cyclohexane diol and 1,4-bicyclohexane dimethanol, glycerine, 1,1, the 1-TriMethylolPropane(TMP), 1,1,1-tri hydroxy methyl butane, trimethylolethane, tetramethylolmethane, sucrose (sucrose), sucrose (saccharose), glucose, fructose, seminose, Dipentaerythritol, tripentaerythritol also has sugar alcohol such as mannitol, Xylitol and more specifically be sorbyl alcohol, also has polyester as based on dicarboxylic acid and glycol, the polyester of hexanodioic acid and BDO or 1,6 hexylene glycol or ethylene glycol for example.Can make ω-lactone by using bifunctional initiator, the polyester that more specifically obtains for the 6-caprolactone ring-opening polymerization is also suitable.
The example of suitable diamines and triamine is 1,3-diaminopropanes, diethylenediamine, 2,3-tolylene diamine, 2,4-tolylene diamine, 2, the mixture of two or more in the phenylenediamine of 6-tolylene diamine, isomery and the above-claimed cpd (b).
In one embodiment of the invention, alcoxylates (B) is selected from the alcoxylates of at least a triol or triamine.
In another embodiment of the present invention, alcoxylates (B) is selected from least a sugar alcohol, such as mannitol, Xylitol and preferred sorbyl alcohol, more specifically is the alcoxylates of D-(-)-sorbyl alcohol.
Particularly preferred compound (b) is ammonia, 2,3-tolylene diamine, quadrol, tri-isopropanolamine, trolamine, ethylene glycol, propylene glycol, glycerine, 1,1, and 1-TriMethylolPropane(TMP) and sorbyl alcohol more specifically are D-(-)-sorbyl alcohol.
The mixture itself of preparation alcoxylates (A) and alcoxylates (B) is known.For example, alcoxylates (A) and alcoxylates (B) can separately prepare and mutually mix.Preferably the mixture by alkoxylate triazine (a) and compound (b) in a step prepares alcoxylates (A) and alcoxylates (B), for example as described in DE 34 12 082 A1.
In one embodiment of the invention, alcoxylates (A) and alcoxylates (B) be with 95:5-5:95, preferred 3:7-7:3, and more preferably the weight ratio of 2:3-3:2 is selected.
In one embodiment of the invention, the mixture of alcoxylates (A) and alcoxylates (B) is selected from those that the mixture by alkoxylate triazine (a) and compound (b) prepares, wherein triazine (a) and compound (b) are with 95:5-5:95, preferred 3:7-7:3, more preferably the weight ratio of 2:3-3:2 is used.
One embodiment of the invention are utilized the following mixture of alcoxylates (A) and alcoxylates (B), the hydroxyl value that this mixture has is 20-1000mg KOH/g, preferred 50-400mg KOH/g, more preferably 100-300mg KOH/g, this all measures according to German standard rules DIN 53240.
One embodiment of the invention are utilized the following mixture of alcoxylates (A) and alcoxylates (B), the number-average molecular weight (M of this mixture
n) be 300-5000g/mol, preferred 500-3000g/mol, this is for example by for example measuring as the gel permeation chromatography (GPC) of standard specimen for polystyrene.
One embodiment of the invention are utilized the following mixture of alcoxylates (A) and alcoxylates (B), the dynamic viscosity of this mixture under 25 ° of C is 100-100000mPas, preferred 100-10000mPas, more preferably 500-5000mPas, this measures according to German standard rules DIN 51550.
One embodiment of the invention further comprise uses following compound treatment:
(C) at least a uncle C
1-C
30Alkanol-referred to as alkanol (c), preferred at least a uncle C
1-C
20At least a alcoxylates of alkanol-referred to as alcoxylates (C).
Suitable primary alkanol (c) more specifically is methyl alcohol, ethanol, n-propyl alcohol, propyl carbinol, Pentyl alcohol, n-hexyl alcohol, n-Octanol, nonylcarbinol, n-dodecane alcohol, n-tetradecanol, stearyl alcohol and NSC 62789 alcohol.
Suitable sec alkanol (c) for example is Virahol and sec-butyl alcohol.
In one embodiment of the invention, alkanol (c) is the 1-50 molecule based on each functional group, preferred 1-20 molecule, more preferably the oxyalkylene alkoxylate of 1-10 molecule.
Oxyalkylene as defined above.Ethylene oxide is particularly preferred oxyalkylene.
In one embodiment of the invention, compound (b) is the 1-50 molecule based on each functional group, preferred 1-20 molecule, more preferably the oxyalkylene alkoxylate of 1-10 molecule.
One embodiment of the invention preferably are no more than the alcoxylates (C) of 20 % by weight based on whole amount utilizations of alcoxylates (A), alcoxylates (B) and alcoxylates (C) 50 % by weight alcoxylates (C) at the most.
Another embodiment of the present invention is not utilized any alcoxylates (C).
One embodiment of the invention are utilized the following mixture of alcoxylates (A), alcoxylates (B) and alcoxylates (C), the hydroxyl value of this mixture is 20-1000mg KOH/g, preferred 50-400mg KOH/g, more preferably 100-300mg KOH/g, this all measures according to German standard rules DIN 53240.
One embodiment of the invention are utilized the following mixture of alcoxylates (A), alcoxylates (B) and alcoxylates (C), the number-average molecular weight (M of this mixture
n) be 300-5000g/mol, preferred 500-3000g/mol, this for example measures by gel permeation chromatography (GPC).
One embodiment of the invention are utilized the following mixture of alcoxylates (A), alcoxylates (B) and alcoxylates (C), the dynamic viscosity of this mixture under 25 ° of C is 100-100000mPas, preferred 100-10000mPas, more preferably 500-5000mPas, this measures according to German standard rules DIN 51550.
In one embodiment of the invention, the inventive method is as process for tanning-hereinafter being also referred to as process for tanning of the present invention carries out, preferably as the retanning method-hereinafter being also referred to as retanning method of the present invention carries out.
Process for tanning of the present invention is undertaken by will be before being close to the tanning step or among the tanning step mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C) once or several times being added usually.Process for tanning of the present invention preferably carries out under pH 2.5-4, but usually observes pH value about 0.3-3 unit that rises in the implementation process of process for tanning of the present invention.
Process for tanning of the present invention carries out under the temperature of preferred 20-30 ° of C usually at 10-45 ° of C.The time length of finding 10 minutes to 12 hours is favourable, preferred 1-3 hour.Process for tanning of the present invention can carry out in any required conventional tanning container, for example by stirring in bucket or in going barrel.
One embodiment of the invention are altogether utilized based on the shaving leather and heavily are 0.01-10 % by weight, the alcoxylates (A) of preferred 0.5-3 % by weight and the mixture of alcoxylates (B) and optional alcoxylates (C).
A scheme and one or more conventional tanning materials of process for tanning of the present invention, for example chrome tanning agent, mineral tanning agent, synthetic tanning agent, Polymer Tanning Agent or vegetable tanning agent are together (for example such as Ullmann ' sEncyclopedia of Industrial Chemistry, the A15 volume, 259-282 page or leaf and more specifically be the 268th page and each page subsequently, the 5th edition (1990), Verlag Chemie Weinheim is described) utilize the mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C).The mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C): the ratio of mixture of the summation of conventional tanning agent or conventional tanning agent advantageously is 0.01:1-100:1.A favourable scheme of the inventive method comprises that the conventional tanning agent that will only be several ppm adds in the mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C).
A scheme of process for tanning of the present invention is with one or more fat liquors or more generally utilize the mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C) for lipophilic ingredients.
A scheme of process for tanning of the present invention is included among the pretan or before the mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C) once or is several times added.It also is feasible adding in the acidleach stage.
Retanning method of the present invention is by by conventional tanning, namely for example with chrome tanning agent, mineral tanning agent, Polymer Tanning Agent, aldehyde, synthetic tanning agent or resin tanning agent tanning or wet blue produced according to the invention or explain oneself wet pelt and begin to carry out as mentioned above.In order to carry out retanning method of the present invention, make at least a mixture of alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C) act on wet blue or explain oneself wet pelt, namely by at least a mixture process with alcoxylates (A) and alcoxylates (B) and optional alcoxylates (C).
Carry out under can be the in other respects traditional condition of retanning method of the present invention.Advantageously use one or more, i.e. 2-6 soaking step and between soaking step, use water rinse.The temperature of each soaking step is 5-60 ° of C in each case, preferred 20-45 ° of C.Advantageously use one or more other reagent commonly used in the retanning process, example is fat liquor, Polymer Tanning Agent and based on the emulsion fatting agent of acrylate and/or methacrylic ester, retanning agent, filler, leather dyestuff or emulsifying agent based on vegetable tanning agent.
The present invention further provides the leather that can obtain by the inventive method-also referred to as leather of the present invention.Leather particularly soft of the present invention and have as snug as a bug in a rug feel.Leather of the present invention comprises based on shaving leather heavily for about 10ppm extremely alcoxylates (A) of about 4 % by weight and the mixture of alcoxylates (B) and optional alcoxylates (C) to mix state usually.
Leather of the present invention especially can be for the manufacture of the clothes blank, for example jacket, trousers, belt or footwear.Leather of the present invention also can be for the manufacture of furniture or furniture assembly, for example sofa, armchair, chair, and for the manufacture of motor vehicle interior componnets, for example automotive seat, central control station, door decorations and panel board.Therefore the present invention also provides the purposes of leather of the present invention in making clothes blank, furniture, furniture assembly and/or motor vehicle interior componnets.
The present invention further provides clothes blank, furniture, furniture assembly and automotive material assembly, they comprise leather of the present invention or are obtained by it.
The following example explanation the present invention.
Embodiment
Hydroxyl value is measured according to German standard rules DIN 52340 in each case.Viscosity always is interpreted as referring to the dynamic viscosity measured according to German standard rules DIN 51550 under 25 ° of C.
I. the mixture for preparing alcoxylates (A) and alcoxylates (B)
I.1 the mixture 1 for preparing alcoxylates (A.1) and alcoxylates (B.1)
At first 24g melamine (a.1) is added with 24g glycerine (b.1) and also under agitation be heated to 160 ° of C in the 300ml steel autoclave.Under 160 ° of C, in 6 hours, add the 192g ethylene oxide by metered charge.Make this reaction carry out 3 hours, until pressure is steady state value.Then reaction mixture is stirred 60 minutes to remove volatile matter and to obtain 235g mixture 1 with yellow low-viscosity (mobile) liquid form under 15 millibars and 160 ° of C.
Analytical data:
Hydroxyl value: 489mg KOH/g
Viscosity: 935mPas
I.2 the mixture 2 for preparing alcoxylates (A.2) and alcoxylates (B.2)
At first 27.7g melamine (a.1) is added with 18.5g D-(-)-sorbyl alcohol (b.2) and also under agitation be heated to 160 ° of C in the 300ml steel autoclave.Under 160 ° of C, in 8 hours, add the 194g ethylene oxide by metered charge.Make this reaction carry out 2 hours, until pressure is steady state value.Then reaction mixture is stirred 60 minutes to remove volatile matter and to obtain 235g mixture 2 with light yellow low-viscosity (mobile) liquid form under 15 millibars and 160 ° of C.
Analytical data:
Hydroxyl value: 472mg KOH/g
Viscosity: 1591mPas
I.3 the mixture 3 for preparing alcoxylates (A.3) and alcoxylates (B.3)
At first with 19.9g melamine (a.1) and 29.9g 2,3-tolylene diamine (b.3) adds together in the 300ml steel autoclave and under agitation is heated to 160 ° of C.Under 160 ° of C, in 9 hours, add the 190.2g ethylene oxide by metered charge.Make this reaction carry out 2 hours, until pressure is steady state value.Then reaction mixture is stirred 60 minutes to remove volatile matter and to obtain 225g mixture 3 with the Vandyke brown liquid form under 15 millibars and 160 ° of C.
Analytical data:
Hydroxyl value: 486mg KOH/g
Viscosity: 1899mPas
II. produce leather by the inventive method
Produce upper leather (universal description)
Percentage ratio always is by weight and is heavy based on the shaving leather.The percentage ratio relevant with aqueous formulation always relates to solids or active matter content, unless clearly indicate in addition.
With melamine-formaldehyde condensation products with comparing retanning agent V-NGM.3.
Be 1.5-1.8mm with commercially available wet blue (available from Packer, USA) shaving to thickness.Skin heart zone is cut into 3 of the 1700g that respectively does for oneself.Then in rotary drum (50L) under 200% liquor ratio (heavy based on the shaving leather) with each bar and 1.5 % by weight sodium formiates and 0.5% sodium bicarbonate and 1% according to US5, naphthene sulfonic acid-the formaldehyde condensation products of " dispersion agent 1 " described preparation of embodiment of 186,846 mixes with 10 minutes interval.Discharge body lotion after 70 minutes.Then each bar is distributed among the independent mixing bulging 1-3.
Under 25-35 ° of C, with 100 % by weight water with mixing bulging 1-3 be that 8% product mixtures of the present invention 1 or mixture 2 or contrast tanning agent V-NGM.3 mix according to table 1 in each case.After mixing 20 minutes, add 0.7% formic acid.
In order to measure photostabilization and hot yellowing, with two cuttings and dry.Photostabilization is being exposed to light postevaluation in 24 hours; Hot yellowing is estimated after 72 hours under 100 ° of C.
After 60 minutes with all the other leathers in each case with 50 % by weight (solids content) aqueous solution of 2 % by weight dyestuffs, the latter's solid is made of following material:
70 weight parts are from the dyestuff of EP-B 0 970 148 embodiment 2.18,
30 weight part ACID BROWN 75 (iron complex), pigment index 1.7.16
Further rouse after this and rolled 30 minutes.
Then use 0.3-0.5% formic acid with a plurality of steps leather to be acidified to pH as 3.6-3.8.Estimate consumption and the discharge of body lotion after 20 minutes.With leather 200% water washing.
Then with 4% described in WO 2003/023069 embodiment A fat liquor add in 100% water (50 ° of C).With 1% formic acid leather is acidified to pH 3.8 after 20 minutes.
The leather that can so obtain washing, dry, draw soft, under 60 ° of C, in vacuum drier, processed 30 seconds and according to standard evaluation shown in the table 1 L.2 and contrast leather V-L.3 to obtain leather of the present invention L.1 and.Score-system according to 1 (very good)-5 (poor) is estimated.
Table 1:
| Leather | L.1 | L.2 | V-L.3 |
| Used product (8%) | Mixture 1 | Mixture 2 | V-NGM.3 |
| Thermotolerance | 2 | 2 | 3 |
| Photostabilization | 2 | 2 | 3 |
| Depth of shade | 2 | 2 | 4 |
| Fullness ratio | 2 | 2 | 2.5 |
| Pliability | 2 | 2 | 3 |
Claims (13)
1. method of producing leather is included in the mixture process wet blue that contains in the water bath shampoo with following compound, explains oneself wet pelt or pelt:
(A) at least a per molecule has at least a alcoxylates of the triazine of at least two functional groups, and
(B) alcoxylates of at least a ammonia or at least aly have at least two compounds that are selected from uncle or the functional group of secondary amino group and hydroxyl.
2. according to claim 1 method, wherein alcoxylates (A) is selected from the alcoxylates that per molecule has the triazine of at least two primary aminos.
3. according to claim 1 and 2 method, wherein alcoxylates (A) is selected from the alcoxylates of the compound of at least a general formula (I):
R wherein
1Be selected from NH
2, C
1-C
10Alkyl and be not substituted or by C
1-C
4The C that alkyl replaces
6-C
14Aryl.
4. each method according to claim 1-3, wherein alcoxylates (B) is selected from the alcoxylates of at least a triol or triamine.
5. each method according to claim 1-3, wherein alcoxylates (B) is selected from the alcoxylates of at least a sugar alcohol.
6. each method according to claim 1-5, wherein alcoxylates (A) and alcoxylates (B) are selected from independently of one another ethoxylate and are mixed with the at the most ethoxylate of 50 % by weight propylene oxides.
7. each method according to claim 1-6, wherein said processing is carried out as retanning.
8. each method according to claim 1-7, wherein the hydroxyl value that has of the mixture of alcoxylates (A) and alcoxylates (B) is 20-1000mg KOH/g.
9. each method according to claim 1-8 further comprises at least a uncle of usefulness (C) C
1-C
30At least a alcoxylates of alkanol is processed.
10. each method according to claim 1-9, wherein alcoxylates (A) and alcoxylates (B) use with the weight ratio of 95:5-5:95.
11. the leather that can obtain by each method in according to claim 1-10.
12. the purposes of leather according to claim 11 in making clothes blank, furniture, furniture assembly and motor vehicle interior componnets.
13. comprise according to claim 11 leather or clothes blank therefrom, furniture, furniture assembly and motor vehicle interior componnets.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10165846.6 | 2010-06-14 | ||
| EP10165846 | 2010-06-14 | ||
| PCT/IB2011/052561 WO2011158168A1 (en) | 2010-06-14 | 2011-06-14 | Process for producing leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102939393A true CN102939393A (en) | 2013-02-20 |
Family
ID=45347702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800290776A Pending CN102939393A (en) | 2010-06-14 | 2011-06-14 | Process for producing leather |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2580356A4 (en) |
| CN (1) | CN102939393A (en) |
| WO (1) | WO2011158168A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998600A (en) * | 2018-08-13 | 2018-12-14 | 四川大学 | A kind of transparent leather and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022918A2 (en) * | 2006-08-23 | 2008-02-28 | Basf Se | Compounds and their use for producing leather and as dispersants |
| US20080248322A1 (en) * | 2005-10-18 | 2008-10-09 | Basf Se | Leather Production Method and Products Suited Thereof |
| WO2009053328A1 (en) * | 2007-10-24 | 2009-04-30 | Basf Se | Method for producing leather |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790933A (en) * | 1954-08-13 | 1958-02-19 | Boehme Fettchemie Gmbh | Tanning, retanning and filling processes |
| DE10143949A1 (en) * | 2001-09-07 | 2003-03-27 | Basf Ag | Emulsifier composition containing elthoxylated alkanols, useful for leather production when combined with relatively highly oxidized, poorly sulfited neutral oil, and preparation of stuffing agent for leather production |
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2011
- 2011-06-14 CN CN2011800290776A patent/CN102939393A/en active Pending
- 2011-06-14 WO PCT/IB2011/052561 patent/WO2011158168A1/en active Application Filing
- 2011-06-14 EP EP20110795273 patent/EP2580356A4/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080248322A1 (en) * | 2005-10-18 | 2008-10-09 | Basf Se | Leather Production Method and Products Suited Thereof |
| WO2008022918A2 (en) * | 2006-08-23 | 2008-02-28 | Basf Se | Compounds and their use for producing leather and as dispersants |
| WO2009053328A1 (en) * | 2007-10-24 | 2009-04-30 | Basf Se | Method for producing leather |
Non-Patent Citations (1)
| Title |
|---|
| 李龙 等: "端酚羟基树枝状化合物的合成及其在皮革鞣制中的应用", 《中国皮革》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998600A (en) * | 2018-08-13 | 2018-12-14 | 四川大学 | A kind of transparent leather and its manufacturing method |
| CN108998600B (en) * | 2018-08-13 | 2020-12-22 | 四川大学 | Transparent leather and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2580356A1 (en) | 2013-04-17 |
| WO2011158168A1 (en) | 2011-12-22 |
| EP2580356A4 (en) | 2014-01-01 |
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