CN104448274A - Oligoester as well as preparation method and application thereof - Google Patents
Oligoester as well as preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses oligoester as well as a preparation method and an application thereof, and belongs to the field of fine chemical engineering. The preparation method comprises the following steps: heating a component A, component B, a component C and a catalyst to 150-190 DEG C, reacting at atmospheric pressure for 2-6 hours, cooling the materials to 60-100 DEG C, adding a component D and a component E and reacting under reduced pressure for 2-6 hours at 170-230 DEG C to obtain the oligoester, wherein the molar ratio of the component A to the component B to the component C to the component D to the component E is (20-35): (35-57): (1-10): (8-25): (1-10); and the catalyst accounts for 0.09-0.27% of mass of all components. By controlling the usage amount of reactants, a reaction time and the degree of vacuum, polyethylene glycol and terminated polyethylene glycol are well embedded in oligoester and low cost and high yield are achieved. The obtained oligoester has good intersolubility with washing products, and thus the decontamination effect of the washing products can be significantly enhanced.
Description
Technical field
The invention belongs to field of fine chemical, particularly a kind of oligomer ester and preparation method thereof and application.
Background technology
Polyester comprises vibrin and polyester elastomer.Vibrin comprises again polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and polyarylester (PAR) etc.Polyester elastomer (TPEE) is generally be polymerized by dimethyl terephthalate (DMT), BDO and poly-butanols, and segment comprises hard section part and soft section of part, is thermoplastic elastomer.
Polyester (PET) produces polyethylene terephthalate by terephthalic acid (PTA) and ethylene glycol (EG) through polycondensation, and part PET wherein is finally generated by underwater cutpellet again.Fiber polyester chip, for the manufacture of terylene short fiber peacekeeping polyester filament, is the raw material of supply polyster fibre enterprise processing fiber and related products.Terylene, as the maximum kind of output in chemical fibre, is the market share in occupation of chemical fibre industry nearly 80%.Polyester also has the purposes such as bottle class, film simultaneously, is widely used in the fields such as packing business, electronic apparatus, health care, building, automobile.
At present, domestic seldom have the report be applied in by polyester in fabric washing product.Many patent discloses preparation method for the polyester in fabric washing product and application thereof abroad.It is the obtained a kind of oligomer ester of raw material by dimethyl terephthalate (DMT), ethylene glycol and/or propylene glycol and methyl or ethyl that EP0185427 discloses a kind of, and this ester per molecule is on average containing 4 to 11 terephthalic acid units.It is raw material that US3557039 discloses by dimethyl terephthalate (DMT) and ethylene glycol, under the catalysis of lime acetate and ANTIMONY TRIOXIDE SB 203 99.8 PCT, and the decontamination polyester of preparation.US2008139442 disclose a kind of can unrestricted flow, the application of polyester in industrial textile and daily fabric washing product of high-content and stable storing and application formula.The multipolymer that EP0319094 discloses ethylene glycol terephthalate and polyoxyethylene terephthalate has enhancing clean effect and antistatic effect to fabric.US3712873, US3959230, US4116885, EP0442101, EP0253567, EP0357280 disclose preparation method or its application of polyester.
Because the chemical structure of polyester and polyester textile and polyester blend fabric is similar, polyester and polyester blend fabric can be easy to be absorbed from the aqueous solution or containing the cleaning product of polyester, then form hydrophilic film at polyester and polyester blend fabric.This film can reduce polyester and the polyester blend fabric affinity to oiliness and fatty dirt, can improve the wettability to polyester and polyester blend fabric simultaneously.Two kinds of effects more easily can remove the difficult oiliness from polyester and polyester blend fabric removing or fatty dirt.
Summary of the invention
Primary and foremost purpose of the present invention is to overcome the shortcoming that exists in prior art with not enough, provides a kind of preparation method of oligomer ester.
Another object of the present invention is to provide the oligomer ester obtained by above-mentioned preparation method.
Another object of the present invention is to provide the application of described oligomer ester.
Object of the present invention is achieved through the following technical solutions: a kind of preparation method of oligomer ester, comprise the steps: under nitrogen atmosphere, component a, components b, amount of component b and catalyzer are under atmospheric pressure heated to 150-190 DEG C of reaction 2-6 hour, then material is cooled to 60-100 DEG C, add component d and component e again, at reduced pressure conditions in 170-230 DEG C of reaction 2-6 hour, obtain oligomer ester; The mol ratio of component a, components b, amount of component b, component d and component e is 20-35:35-57:1-10:8-25:1-10; The mass ratio that catalyzer accounts for all components is 0.09-0.27%.
Preferably, the mol ratio of described component a, components b, amount of component b, component d and component e is 25-32:40-55:2-7:10-20:3-8.
Described component a is dicarboxylic acid or its ester;
Described component a is preferably terephthalic acid, phthalic acid, m-phthalic acid, carboxylic acid and C
1-C
3the monoesters of alcohol, carboxylic acid and C
1-C
3one in the dibasic acid esters of alcohol, succsinic acid, pentanedioic acid, hexanodioic acid, toxilic acid, methylene-succinic acid or fumaric acid or at least two kinds of mixtures;
Preferred, described component a is one in terephthalic acid, phthalic acid, m-phthalic acid, dimethyl ester or diethyl ester or at least two kinds of mixtures.
Described components b is dibasic alcohol;
Described components b is preferably one in ethylene glycol, propylene glycol, propylene glycol or butyleneglycol or at least two kinds of mixtures;
Preferred, described components b is ethylene glycol and/or propylene glycol.
Described amount of component b is the polyvalent alcohol at least containing 3 hydroxyls;
Described amount of component b is preferably one in glycerine, TriMethylolPropane(TMP), tetramethylolmethane, sorbyl alcohol or N.F,USP MANNITOL or at least two kinds of mixtures.
Described component d is polyoxyethylene glycol;
Described component d is preferably the polyoxyethylene glycol that mole is 500-2000.
Described component e is the polyoxyethylene glycol with END CAPPED GROUP;
Described component e is preferably the end-blocking polyoxyethylene glycol that mole is 500-2000;
Described END CAPPED GROUP is C
1-C
18alcohol or C
1-C
18alkylamine.
Described catalyzer is metal inorganic oxide compound, acetate, acid, titanium catalyst series or tin catalyst series;
Described catalyzer is preferably one in zinc oxide, antimonous oxide, zinc acetate, Cobaltous diacetate, manganese acetate, tosic acid, phosphoric acid, titanium isopropylate, tetrabutyl titanate, butyl stannonic acid, stannous octoate or Mono-n-butyltin or at least two kinds of mixtures.
The described 150-190 DEG C of reaction that be heated to preferably is heated to 150-190 DEG C of reaction 3-5 hour for 2-6 hour.
Under 170-230 DEG C of reaction is preferably reduced pressure for 2-6 hour, 2-5 hour is reacted in 170-230 DEG C under described reduced pressure.
Acid or ester and the alcohol reaction times too short, then polycondensation is incomplete, reduces the clean effect of product.Acid or ester and the alcohol reaction times oversize, then in production process product cost raise.
Described reduced pressure is 10-500Pa, is preferably 50-100Pa; Vacuum tightness is higher, more easily gets rid of dibasic alcohol, and polyoxyethylene glycol and end-blocking polyoxyethylene glycol are embedded in oligomer ester.
A kind of oligomer ester, is obtained by above-mentioned preparation method.
Described oligomer ester can be applicable in fabric washing product;
Described oligomer ester oligopolymer is preferably applied in fabric washing product with the form of liquid, pasty state or gel.
Described fabric washing product is washing powder, ordinary liquid laundry detergent or concentrated washing liquid.
The present invention has following advantage and effect relative to prior art: the present invention is by controlling the vacuum tightness of acid or the consumption of ester and alcohol, reaction times and decompression, make to react completely, polyoxyethylene glycol and end-blocking polyoxyethylene glycol be well embedded in oligomer ester, its cost is low, yield is high, can be applied in large production.The oligomer ester prepared and washing liquid have good mutual solubility, obviously can improve the soil removability of washing liquid, the clean effect of reinforced fabric cleaning product.
Accompanying drawing explanation
Fig. 1 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of 3g commercial laundry liquid contamination with wash is washed; Wherein: a is the polyester soiled cotton that lipstick pollutes, b is the polyester soiled cotton that paprika oleoresin pollutes, and c is the polyester soiled cotton that tomato-sauce pollutes;
Fig. 2 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of the solution washing pollution of the oligomer ester 6 of 3g commercial laundry liquid+3g 1% is washed; Wherein: a is the polyester soiled cotton that lipstick pollutes, b is the polyester soiled cotton that paprika oleoresin pollutes, and c is the polyester soiled cotton that tomato-sauce pollutes;
Fig. 3 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of the solution washing pollution of certain offshore company's oligomer ester of 3g commercial laundry liquid+3g 1% is washed; Wherein: a is the polyester soiled cotton that lipstick pollutes, b is the polyester soiled cotton that paprika oleoresin pollutes, and c is the polyester soiled cotton that tomato-sauce pollutes.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
Passing under condition of nitrogen gas, 166g terephthalic acid, 62g ethylene glycol, 76g propylene glycol, 15g glycerine and 2g tosic acid are being added in reactor, is warming up to 170 DEG C, reacting 3 hours, the water that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then adds 240g polyoxyethylene glycol-600 and 240g methoxy poly (ethylene glycol)-750, at reduced pressure conditions (pressure is 500Pa), raised temperature to 200 DEG C, holding temperature is 200 DEG C of reactions 5 hours, obtaining faint yellow product, is oligomer ester 1.
Embodiment 2
Passing under condition of nitrogen gas, 90g terephthalic acid, 90g m-phthalic acid, 62g ethylene glycol, 76g propylene glycol, 20g TriMethylolPropane(TMP) and 2g tosic acid are being added in reactor, is warming up to 175 DEG C, reacting 3 hours, the water that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then 200g polyoxyethylene glycol-600,100g PEG-8 00 and 240g methoxy poly (ethylene glycol)-750 is added, at reduced pressure conditions (pressure is 300Pa), raised temperature to 190 DEG C, holding temperature is 190 DEG C of reactions 6 hours, and obtaining faint yellow product, is oligomer ester 2.
Embodiment 3
Passing under condition of nitrogen gas, 194g dimethyl terephthalate (DMT), 44g ethylene glycol, 76g propylene glycol, 20g tetramethylolmethane and 0.8g tetrabutyl titanate are being added in reactor, is warming up to 150 DEG C, reacting 4 hours, the methyl alcohol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 70 DEG C, then 140g polyoxyethylene glycol-600,220g PEG-8 00 and 175g methoxy poly (ethylene glycol)-750 is added, at reduced pressure conditions (pressure is 100Pa), raised temperature to 210 DEG C, holding temperature is 210 DEG C of reactions 5 hours, and obtaining faint yellow product, is oligomer ester 3.
Embodiment 4
Passing under condition of nitrogen gas, 97g dimethyl terephthalate (DMT), 111g diethyl phthalate, 62g ethylene glycol, 35g propylene glycol, 32g sorbyl alcohol and 0.8g zinc acetate, 0.4g antimonous oxide are added in reactor, be warming up to 190 DEG C, react 5 hours, methyl alcohol, ethanol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 60 DEG C, then 160g PEG-8 00,140g PEG-6000,100g methoxy poly (ethylene glycol)-750 and 50g octadecane oxygen base polyoxyethylene glycol-1350 is added, at reduced pressure conditions (pressure is 100Pa), raised temperature to 220 DEG C, holding temperature is 220 DEG C of reactions 4 hours, and obtaining faint yellow product, is oligomer ester 4.
Embodiment 5
Passing under condition of nitrogen gas, 97g dimethyl terephthalate (DMT), 111g diethyl phthalate, 62g ethylene glycol, 40g propylene glycol, 10g glycerine, 8g tetramethylolmethane and 0.8g zinc acetate, 0.4g Mono-n-butyltin are added in reactor, be warming up to 180 DEG C, react 4 hours, methyl alcohol, ethanol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then 150g polyoxyethylene glycol-600,200g PEG-8 00,150g methoxy poly (ethylene glycol)-750 and 50g butoxy polyoxyethylene glycol-1350 is added, at reduced pressure conditions (pressure is 50Pa), raised temperature to 230 DEG C, holding temperature is 230 DEG C of reactions 4 hours, and obtaining faint yellow product, is oligomer ester 5.
Embodiment 6
Passing under condition of nitrogen gas, 97g dimethyl terephthalate (DMT), 97g dimethyl isophthalate, 45g ethylene glycol, 80g propylene glycol, 10g glycerine, 10g TriMethylolPropane(TMP) and 0.8g zinc acetate, 0.4g tetrabutyl titanate are added in reactor, be warming up to 170 DEG C, react 5 hours, the methyl alcohol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then 210g polyoxyethylene glycol-600,120g PEG-8 00,120g methoxy poly (ethylene glycol)-750 and 50g methoxy poly (ethylene glycol)-1350 is added, at reduced pressure conditions (pressure is 50Pa), raised temperature to 230 DEG C, holding temperature is 230 DEG C of reactions 2 hours, and obtaining faint yellow product, is oligomer ester 6.
Embodiment 7
Passing under condition of nitrogen gas, 194g dimethyl terephthalate (DMT), 50g ethylene glycol, 38g propylene glycol, 5g glycerine, 5g tetramethylolmethane and 0.8g zinc acetate, 0.4g butyl stannonic acid are added in reactor, be warmed up to 170 DEG C, react 3 hours, the methyl alcohol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then 120g polyoxyethylene glycol-600,80g PEG-8 00,170g dodecyloxy polyoxyethylene glycol-750 is added, at reduced pressure conditions (pressure is 50Pa), raised temperature to 170 DEG C, holding temperature is 170 DEG C of reactions 4 hours, and obtaining faint yellow product, is oligomer ester 7.
Embodiment 8
Passing under condition of nitrogen gas, 194g dimethyl terephthalate (DMT), 62g ethylene glycol, 110g propylene glycol, 15g glycerine and 0.8g zinc acetate, 0.4g butyl stannonic acid are being added in reactor, is warmed up to 170 DEG C, reacting 3 hours, the methyl alcohol that distillation generates except dereaction; Continue to pass into nitrogen, cooling material to 80 DEG C, then 300g polyoxyethylene glycol-600,200g amino dodecane base polyoxyethylene glycol-750 is added, at reduced pressure conditions (pressure is 50Pa), raised temperature to 200 DEG C, holding temperature is 200 DEG C of reactions 3 hours, and obtaining faint yellow product, is oligomer ester 8.
Effect example
Oligomer ester 1-8 has the ability strengthening decontamination to fabric washing product, carry out soil removability contrast to oligomer ester 1-8, experimental program is as GB/T13174-2008:
1, soiled cotton initial whiteness test
Whiteness instrument start preheating 15 minutes, the initial white angle value of test JB-01 carbon black soiled cotton, JB-02 albumen soiled cotton, JB-03 sebum soiled cotton and woven dacron, blended fabric, calico.
2, hard water (250ppm) is prepared
Take calcium chloride 1.67g, magnesium sulfate 2.47g is settled in 1000ml volumetric flask, then get this solution preparation of 100g and become the 1000ml aqueous solution, add in decontamination cylinder.
3, add 3g standard washing liquid (standard laundry liquid formulation is as table 1) in respective cylinder and 0.06g treats test sample, start stirring and sample is fully dissolved.Initial soiled cotton good is after tested put in corresponding cylinder, and arranging spotter temperature is 30 ± 1 DEG C, rotating speed 120r/min, and the time is 20 minutes, starts to stir.After 20 minutes, take out soiled cotton water and rinse and then dries, then test the whiteness of soiled cotton after decontamination, calculate whiteness difference, the whiteness difference result of each sample is as table 2.
The whiteness difference of the various soiled cottons of this testing method is larger (difference is the whiteness after initial whiteness deducts washing and drying), and the clean effect of interpret sample to soiled cotton is more obvious.Be applied in the formula of standard washing liquid viewed from the clean effect of soiled cotton from sample polyester 1-8, sample polyester 6 is applied in standard washing liquid, carbon black soiled cotton, albumen soiled cotton and sebum soiled cotton are after washing, the whiteness difference of three kinds of soiled cottons is all greater than other samples, and the clean effect of sample oligomer ester 6 is best.
The formula of table 1 standard washing liquid
The whiteness difference result of table 2 each sample
| Sample | Carbon black soiled cotton whiteness difference | Albumen soiled cotton whiteness difference | Skin ester soiled cotton whiteness difference |
| Oligomer ester 1 | 12.6 | 2.3 | 12.5 |
| Oligomer ester 2 | 12.7 | 2.2 | 12.8 |
| Oligomer ester 3 | 13.0 | 2.6 | 13.0 |
| Oligomer ester 4 | 13.5 | 2.8 | 12.8 |
| Oligomer ester 5 | 13.8 | 2.9 | 13.0 |
| Oligomer ester 6 | 15.0 | 3.5 | 14.0 |
| Oligomer ester 7 | 14.3 | 3.2 | 13.7 |
| Oligomer ester 8 | 14.5 | 3.1 | 13.4 |
Investigate the impact that sample oligomer ester 6 adds the percent mass comparison various soiled cotton whiteness difference of standard washing liquid (formula is as table 1), set that sample oligomer ester 6 accounts for standard washing liquid quality 0.5%, 1% and 2% 3 experimental program, its washing methods is still implemented according to GB/T13174-2008, and its result is as table 3.
As can be seen from table 3 experimental data, when to add massfraction that oligomer ester 6 accounts for standard washing liquid be 1.0%, more satisfactory to the clean effect of carbon black soiled cotton, albumen soiled cotton and sebum soiled cotton.In standard washing liquid, add oligomer ester 6 less can reduce clean effect to carbon black soiled cotton, albumen soiled cotton and sebum soiled cotton, the decontamination reinforced effects adding oligomer ester 6 pairs of carbon black soiled cottons, albumen soiled cotton and sebum soiled cotton in standard washing liquid is not obvious.
What table 3 sample oligomer ester 6 added the percent mass comparison various soiled cotton whiteness difference of standard washing liquid affects result
Oligomer ester 6 of the present invention compares with prior art decontamination oligomer ester, and the oligomer ester of prior art selects certain commercially available at present offshore company's polyester.
Selecting the larger Tide of commercially available amount to wash washing liquid (high density), blue moon washing liquid (coventional type) and vertical white washing liquid (coventional type) is base-material, and having investigated oligomer ester 6 and certain offshore company's polyester can maximum addition in various brands washing liquid.Its maximum addition is defined as the research on maximum utilized quantity that can add oligomer ester when various base-material outward appearance does not change, and the per-cent accounting for washing liquid weight with oligomer ester represents, as shown in table 4.
Table 4 oligomer ester 6 and prior art decontamination oligomer ester compare result
As can be seen from the data of table 4, the maximum interpolation consumption that oligomer ester 6 washes washing liquid (high density), blue moon washing liquid (coventional type) and vertical white washing liquid (coventional type) at commercially available Tide is all greater than the maximum addition of certain company's oligomer ester external at these commercial laundry liquid.Oligomer ester 6 can better must dissolve each other with these commercial laundry liquid.
Oligomer ester 6 is not only better than certain company's oligomer ester external with the mutual solubility of commercial laundry liquid, also good than certain company's polyester external in detergency ability, by following experimental program to confirm:
(1) mylar pre-treatment:
Mylar is cut into 6*6cm size, washs 20 minutes with the 250mg/kg hard water that standard wash agent (3g/L) configures, put baking oven 70 DEG C of dry for standby.
(2) polyester soiled cotton makes:
1. lipstick: in lipstick: white oil → 1:2.5 ratio heating for dissolving dropper drips 3 and drops in mylar intermediate point.
2. paprika oleoresin: directly use dropper to drip 5 and drop in the middle of mylar.
3. tomato-sauce: direct finger is stained with about 0.1g and is smeared evenly in the middle of mylar.
(3) dry: three kinds of soiled cottons are put 50 DEG C, baking oven and dried that to cool normal temperature an evening for subsequent use.
(4) washing process:
In beaker, add 1 liter of tap water, then add washing composition.Then the three kinds of polyester soiled cottons made are put into the speed agitator treating 20 minute of beaker by 50kr/min.After washed, by the tap water 10s of cloth taking-up speed stabilizing, then put into 70 DEG C of oven for drying.
(5) evaluation judges: with the naked eye watch, and the whiteness contrasted after washing before washing is poor.
Fig. 1 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of 3g commercial laundry liquid contamination with wash is washed;
Fig. 2 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of the solution washing pollution of the oligomer ester 6 of 3g commercial laundry liquid+3g 1% is washed;
Fig. 3 is the comparison diagram washing rear whiteness difference before the polyester soiled cotton of the solution washing pollution of the oligomer ester of certain offshore company of 3g commercial laundry liquid+3g 1% is washed;
Wherein: a is the polyester soiled cotton that lipstick pollutes, b is the polyester soiled cotton that paprika oleoresin pollutes, and c is the polyester soiled cotton that tomato-sauce pollutes.
With the naked eye can observe out, the polyester soiled cotton polluted with lipstick, paprika oleoresin and tomato-sauce, with in the washing situation of different washing composition, its washing composition is also different to the clean effect of contaminated mylar.Can find out that the whiteness through washed mylar of Fig. 2 is best.In certain commercially available washing liquid, add the oligomer ester 6 of 1%, its clean effect can be made obviously to increase.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the preparation method of an oligomer ester, it is characterized in that, comprise the steps: under nitrogen atmosphere, component a, components b, amount of component b and catalyzer are under atmospheric pressure heated to 150-190 DEG C of reaction 2-6 hour, then material is cooled to 60-100 DEG C, add component d and component e again, at reduced pressure conditions in 170-230 DEG C of reaction 2-6 hour, obtain oligomer ester; The mol ratio of component a, components b, amount of component b, component d and component e is 20-35:35-57:1-10:8-25:1-10; The mass ratio that catalyzer accounts for all components is 0.09-0.27%;
Described component a is dicarboxylic acid or its ester; Described components b is dibasic alcohol; Described amount of component b is the polyvalent alcohol at least containing 3 hydroxyls; Described component d is polyoxyethylene glycol; Described component e is the polyoxyethylene glycol with END CAPPED GROUP.
2. the preparation method of oligomer ester according to claim 1, is characterized in that, the mol ratio of described component a, components b, amount of component b, component d and component e is 25-32:40-55:2-7:10-20:3-8.
3. the preparation method of oligomer ester according to claim 1 and 2, is characterized in that, described component a is terephthalic acid, phthalic acid, m-phthalic acid, carboxylic acid and C
1-C
3the monoesters of alcohol, carboxylic acid and C
1-C
3one in the dibasic acid esters of alcohol, succsinic acid, pentanedioic acid, hexanodioic acid, toxilic acid, methylene-succinic acid or fumaric acid or at least two kinds of mixtures; Described components b is one in ethylene glycol, propylene glycol, propylene glycol or butyleneglycol or at least two kinds of mixtures.
4. the preparation method of oligomer ester according to claim 1 and 2, is characterized in that, described amount of component b is one in glycerine, TriMethylolPropane(TMP), tetramethylolmethane, sorbyl alcohol or N.F,USP MANNITOL or at least two kinds of mixtures; The polyoxyethylene glycol of described component d to be mole be 500-2000; The end-blocking polyoxyethylene glycol of described component e to be mole be 500-2000.
5. the preparation method of oligomer ester according to claim 4, is characterized in that, described END CAPPED GROUP is C
1-C
18alcohol or C
1-C
18alkylamine.
6. the preparation method of oligomer ester according to claim 1, it is characterized in that, described catalyzer is one in zinc oxide, antimonous oxide, zinc acetate, Cobaltous diacetate, manganese acetate, tosic acid, phosphoric acid, titanium isopropylate, tetrabutyl titanate, butyl stannonic acid, stannous octoate or Mono-n-butyltin or at least two kinds of mixtures.
7. the preparation method of oligomer ester according to claim 1, is characterized in that, the described 150-190 DEG C of reaction that be heated to reacts 3-5 hour for being heated to 150-190 DEG C in 2-6 hour; Under 170-230 DEG C of reaction 2-6 hour is reduced pressure, 2-5 hour is reacted in 170-230 DEG C under described reduced pressure.
8. the preparation method of the oligomer ester according to claim 1 or 7, is characterized in that, described reduced pressure is 10-500Pa.
9. an oligomer ester, is obtained by the preparation method described in claim 1 or 2.
10. oligomer ester according to claim 9 is applied in fabric washing product.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1239107A (en) * | 1998-06-12 | 1999-12-22 | 科莱恩有限公司 | Soil release oligoesters |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1239107A (en) * | 1998-06-12 | 1999-12-22 | 科莱恩有限公司 | Soil release oligoesters |
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Application publication date: 20150325 |