CN102690409B - Method for preparing low-melting-point polyester hot melt adhesive - Google Patents
Method for preparing low-melting-point polyester hot melt adhesive Download PDFInfo
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- CN102690409B CN102690409B CN 201210199798 CN201210199798A CN102690409B CN 102690409 B CN102690409 B CN 102690409B CN 201210199798 CN201210199798 CN 201210199798 CN 201210199798 A CN201210199798 A CN 201210199798A CN 102690409 B CN102690409 B CN 102690409B
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- acid
- melt adhesive
- hot melt
- diacid
- dibasic
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 7
- 229920000728 polyester Polymers 0.000 title abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 16
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 12
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 8
- 229920001634 Copolyester Polymers 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 238000005886 esterification reaction Methods 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical group C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 14
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 4
- 230000032050 esterification Effects 0.000 claims description 4
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- -1 titanate ester Chemical class 0.000 claims description 3
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 8
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 4
- 230000008025 crystallization Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 210000002747 omentum Anatomy 0.000 abstract 1
- 238000010792 warming Methods 0.000 description 18
- 239000000047 product Substances 0.000 description 17
- 239000006227 byproduct Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 150000007520 diprotic acids Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 description 2
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention discloses a method for preparing a low-melting-point polyester hot melt adhesive. The method mainly comprises the following steps of: (1) performing an esterification reaction on dodecandioic acid and C2-C4 dihydric alcohol under the action of a catalyst; and (2) adding aliphatic dibasic acid, diethylene glycol, neopentyl glycol and a stabilizing agent into products from the step (1), performing polycondensation under the pressure of 100 to 150Pa, maintaining the reaction temperature at 260 to 270 DEG C, and reacting for 1 to 2 hours to obtain a copolyester hot melt adhesive product. Copolyester has the characteristics of high crystallization speed, low melting point and adhesion difficulty, so that the low-melting-point polyester hot melt adhesive is suitable to serve as an omentum adhesive material..
Description
Technical field
The present invention relates to a kind of polyester hot-melt adhesive and manufacture method thereof, relate in particular to a kind of synthetic method of the polyester hot-melt adhesive based on the polymer organic synthesis.
Background technology
Polyester hot-melt adhesive has purposes widely, the vibrin used as hot melt adhesive, be by diprotic acid with dibasic alcohol ester and must the thermoplasticity product.Usually by terephthalyl alcohol dimethyl ester, m-phthalic acid, ethylene glycol and butyleneglycol etc., be raw material.Carry out transesterify as Chinese patent CN100439466C provides a kind of by dimethyl terephthalate (DMT) and aliphatic dialcohol, then carry out polycondensation, it is easy and simple to handle, but its curing speed is slow.
Current technology, the low-melting point polyester hot melt adhesive is with melting point depression, and its curing speed also can reduce, thereby causes the problem not high in the hardness ag(e)ing rate, and therefore, quick-setting low-melting point polyester hot melt adhesive is necessary.
The present invention mainly significantly accelerates the polymer crystallization curing speed by long-chain fat family diprotic acid, low melting point there is the rapid crystallization ability when can be there is, this polyester has long linear structure and good symmetry, reduce the polymer architecture regularity by the heteroatoms that contains in the branched structure than short-chain branch aliphatic dibasic acid, neopentyl glycol, Diethylene Glycol, thereby the crystallization time of adjusting according to demand polyester reaches production requirement.
Summary of the invention
Main purpose of the present invention is the preparation method who provides the quick-setting polyester hot-melt adhesive of a kind of low melting point for addressing the above problem, and compared to prior art, polyester hot-melt adhesive prepared by present method has curing speed and lower fusing point faster;
In order to achieve the above object, step of the present invention is as follows:
(1) ten two diacid and C
2-C
4dibasic alcohol, under the titanate ester catalyst action, carries out esterification under protection of inert gas, and temperature of reaction is 160-230 ℃, and the water generated to reaction is distilled out 93% end when above;
(2) in step (1) product, add m-phthalic acid, aliphatic dibasic acid, other dibasic alcohol and glycerol to carry out esterification, temperature of reaction 210-230 ℃;
(3) add phosphorous acid class stablizer in step (2) product, at 250-270 ℃, the copolycondensation of reducing pressure under 100-150Pa, the polycondensation time is 1-2 hour, when polycondensation completes, passes into nitrogen and makes the system normal pressure, obtain the molten state multipolymer, discharging obtains the copolyester with low melting point hot melt adhesive;
Said C
2-C
4dibasic alcohol is selected from a kind of in ethylene glycol, butyleneglycol;
Described other dibasic alcohol are selected from pentanediol, Diethylene Glycol;
Select oneself a kind of in diacid, suberic acid, sebacic acid of said aliphatic dibasic acid.
Mol ratio between described each component is:
12 diacid: aliphatic dibasic acid=1:0～0.05;
12 diacid: m-phthalic acid=1:0～0.05
C
2-C
4dibasic alcohol: other dibasic alcohol=1:0.05～0.1;
C
2-C
4dibasic alcohol: glycerol=1:0～0.0002;
Total acid: total alcohol=1:1.15～1.5.
Described catalyzer is selected from a kind of in tetraethyl titanate, titanium isopropylate, tetra-n-butyl titanate, and catalyst quality is 0.01%～0.1% of total acid quality.
Described stablizer is selected from a kind of in trimethyl phosphite 99, triphenyl phosphite, the 0.01%-0.1% that stabilizing agent dosage is the total acid quality.
The present invention compared with prior art has following advantage: the product fusing point is lower than 100 ℃.Be less than 2 minutes set time, be difficult for adhered to one another, suitable to the nethike embrane adhesive material.
Performance test: in the embodiment of the present invention, adopt international standards respectively ISO 11357-1-1997 and standard GB/T/T 3682-2000 of the fusing point of products therefrom and melting index measured.
Embodiment
Below in conjunction with specific examples, the present invention is described.
Embodiment 1
Add 12 diacid 423.2g in the 2.0L polymerization reaction kettle, ethylene glycol 176.6g, tetra-n-butyl titanate 0.045g, start heating, and material dissolution during to temperature to 128 ℃ starts to stir, be warming up to 166 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 93%, add sebacic acid 12.12g, neopentyl glycol 15.6g, m-phthalic acid 16.6g, continue to be warming up to 230 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add triphenyl phosphite 0.045g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 100Pa system pressure, react, further improve temperature of reaction to 260 ℃, 1 hour reaction times, remove vacuum system under nitrogen protection, the discharging product is the low-melting point polyester hot melt adhesive, oven dry is 85-88 ℃ by its fusing point of test, melt and refer to for 51g/10min, set time 110s.
Embodiment 2
Add 12 diacid 313.95g in the 2.0L polymerization reaction kettle, butyleneglycol 145.8g, titanium isopropylate 0.335g, start heating, and material dissolution during to temperature to 98 ℃ starts to stir, be warming up to 170 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 95%, add hexanodioic acid 8.76g, neopentyl glycol 10.1g, m-phthalic acid 12.75g, Diethylene Glycol 11.0g, continue to be warming up to 230 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add triphenyl phosphite 0.055g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 100Pa system pressure, react, further improve temperature of reaction to 254 ℃, 2 hours reaction times, remove vacuum system under nitrogen protection, discharging product its fusing point after tested is 82.7 ℃, melt and refer to for 48.7g/10min, set time 100s.
Embodiment 3
Add 12 diacid 432.4g in the 2.0L polymerization reaction kettle, ethylene glycol 167.4g, tetra-n-butyl titanate 0.2g, start heating, and material dissolution during to temperature to 128 ℃ starts to stir, be warming up to 166 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 93%, add Diethylene Glycol 31.8g, m-phthalic acid 9.96g, hexanodioic acid 8.76g, continue to be warming up to 235 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add trimethyl phosphite 0.451g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 100Pa system pressure, react, further improve temperature of reaction to 270 ℃, 1.5 hours reaction times, remove vacuum system under nitrogen protection, the discharging product is the low-melting point polyester hot melt adhesive, oven dry is 85.8 ℃ by its fusing point of test, melt and refer to for 74.6g/10min, set time 110s.
Embodiment 4
Add 12 diacid 414g in the 2.0L polymerization reaction kettle, ethylene glycol 172.98g, tetra-n-butyl titanate 0.18g, start heating, and material dissolution during to temperature to 128 ℃ starts to stir, be warming up to 166 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 93%, add glycerol 0.02g, suberic acid 17.4g, m-phthalic acid 16.6g, neopentyl glycol 29.0g, continue to be warming up to 230 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add triphenyl phosphite 0.063g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 150Pa system pressure, react, further improve temperature of reaction to 260 ℃, 1.8 hours reaction times, remove vacuum system under nitrogen protection, the discharging product is the low-melting point polyester hot melt adhesive, its fusing point is 92.7 ℃ after tested, melt and refer to for 43.2g/10min, set time 120s.
Embodiment 5
Add 12 diacid 423.2g in the 2.0L polymerization reaction kettle, ethylene glycol 167.4g, tetra-n-butyl titanate 0.26g, start heating, and material dissolution during to temperature to 128 ℃ starts to stir, be warming up to 166 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 95%, add hexanodioic acid 14.6g, m-phthalic acid 9.96g, Diethylene Glycol 31.8g, glycerol 0.01g, continue to be warming up to 230 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add triphenyl phosphite 0.049g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 120Pa system pressure, react, further improve temperature of reaction to 265 ℃, 2 hours reaction times, remove vacuum system under nitrogen protection, the discharging product is the low-melting point polyester hot melt adhesive, its fusing point is 85.2 ℃ after tested, melt and refer to for 45.8g/10min, set time 100s.
Embodiment 6
Add 12 diacid 414g in the 2.0L polymerization reaction kettle, ethylene glycol 167.4g, tetrabutyl titanate 0.2g, start heating, and material dissolution during to temperature to 128 ℃ starts to stir, be warming up to 166 ℃ and distill out water byproduct, continue to be warming up to 210 ℃, aquifer yield reaches theoretical value 95%, add sebacic acid 20.2g, m-phthalic acid 16.6g, neopentyl glycol 31.2g, continue to be warming up to 230 ℃, distill out the oligopolymer of the unnecessary alcohol of part and reaction, add triphenyl phosphite 0.086g, when reacting after overhead product reduces the polycondensation of being reduced pressure, under the 100Pa system pressure, react, further improve temperature of reaction to 260 ℃, 2 hours reaction times, remove vacuum system under nitrogen protection, the discharging product is the low-melting point polyester hot melt adhesive, its fusing point is 81.3 ℃ after tested, melt and refer to for 41.2g/10min, set time 100s.
Claims (3)
1. the preparation method of a copolyester with low melting point hot melt adhesive, its feature comprises the steps:
(1) ten two diacid and C
2-C
4dibasic alcohol, under the titanate ester catalyst action, carries out esterification under protection of inert gas, and temperature of reaction is 160-230 ℃, and the water generated to reaction is distilled out 93% end when above;
(2) in step (1) product, add m-phthalic acid, aliphatic dibasic acid, other dibasic alcohol and glycerol to carry out esterification, temperature of reaction 210-230 ℃;
(3) add phosphorous acid class stablizer in step (2) product, at 250-270 ℃, the copolycondensation of reducing pressure under 100-150Pa, the polycondensation time is 1-2 hour, when polycondensation completes, passes into nitrogen and makes the system normal pressure, obtain the molten state multipolymer, discharging obtains the copolyester with low melting point hot melt adhesive;
Said C
2-C
4dibasic alcohol is selected from a kind of in ethylene glycol, butyleneglycol;
Described other dibasic alcohol are selected from pentanediol, Diethylene Glycol;
Select oneself a kind of in diacid, nonane diacid, sebacic acid of said aliphatic dibasic acid;
Mol ratio between described each component is:
12 diacid: aliphatic dibasic acid=1: 0～0.05;
12 diacid: m-phthalic acid=1: 0～0.05;
C
2-C
4dibasic alcohol: other dibasic alcohol=1:0.05～0.1;
C
2-C
4dibasic alcohol: glycerol=1: 0～0.0002;
Total acid: total alcohol=1: 1.15～1.5;
Wherein the consumption of aliphatic dibasic acid and m-phthalic acid is non-vanishing.
2. method according to claim 1, is characterized in that catalyzer is selected from a kind of in tetraethyl titanate, titanium isopropylate, tetra-n-butyl titanate, and catalyst quality is 0.01%～0.1% of total acid quality.
3. method according to claim 1, is characterized in that stablizer is triphenyl phosphite, the 0.01%-0.1% that stabilizing agent dosage is the total acid quality.
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| CN 201210199798 CN102690409B (en) | 2012-06-16 | 2012-06-16 | Method for preparing low-melting-point polyester hot melt adhesive |
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| CN 201210199798 CN102690409B (en) | 2012-06-16 | 2012-06-16 | Method for preparing low-melting-point polyester hot melt adhesive |
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| CN102690409B true CN102690409B (en) | 2013-12-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103468195A (en) * | 2013-09-26 | 2013-12-25 | 上海天洋热熔胶有限公司 | Preparation method of biodegradable polyester hot melt adhesive |
| CN106189983B (en) * | 2016-07-27 | 2019-04-23 | 揭阳市亮丰达五金塑胶有限公司 | A kind of shoes rapid link low melting point, high-adhesive-strength polyester hot-melt adhesive and its preparation method and application |
| CN106620827B (en) * | 2017-01-25 | 2019-12-31 | 东华大学 | Application of poly (diglyceride sebacate) |
| CN106674495A (en) * | 2017-02-20 | 2017-05-17 | 浙江罗星实业有限公司 | Production technology of polyester polyol and production system for polyester polyol |
| CN109251307A (en) * | 2018-09-04 | 2019-01-22 | 上海金汤塑胶科技有限公司 | Polyester polyol and preparation method thereof and polyurethane hot melt and preparation method thereof |
| CN114075370B (en) * | 2020-08-19 | 2023-07-14 | 中国石油化工股份有限公司 | Stimulus-induced copolymerization material and preparation method thereof |
| CN112661947B (en) * | 2020-12-22 | 2023-03-17 | 上海华峰新材料研发科技有限公司 | Polyester polyol and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735757A (en) * | 2009-12-24 | 2010-06-16 | 昆山天洋热熔胶有限公司 | Preparation method of polyester hot melt adhesive for air cleaner |
| CN102336896A (en) * | 2010-07-27 | 2012-02-01 | 上海杰事杰新材料(集团)股份有限公司 | Preparation method of lightly-crosslinked aliphatic-aromatic copolyester |
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| KR100366484B1 (en) * | 1999-12-11 | 2003-01-14 | 주식회사 이래화학 | Copolyester resin composition and a process of preparation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735757A (en) * | 2009-12-24 | 2010-06-16 | 昆山天洋热熔胶有限公司 | Preparation method of polyester hot melt adhesive for air cleaner |
| CN102336896A (en) * | 2010-07-27 | 2012-02-01 | 上海杰事杰新材料(集团)股份有限公司 | Preparation method of lightly-crosslinked aliphatic-aromatic copolyester |
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| JP特开2001-187818A 2001.07.10 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 201802 Shanghai City, Jiading District Hui Ping Road No. 505 Patentee after: Shanghai Tianyang hot melt adhesive materials Limited by Share Ltd. Patentee after: KUNSHAN TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 201802 Shanghai City, Jiading District Hui Ping Road No. 505 Patentee before: Shanghai Tianyang Hotmelt Adhesives Co.,Ltd. Patentee before: KUNSHAN TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY |
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| CI01 | Publication of corrected invention patent application |
Correction item: Patentee Correct: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd.|201802 Shanghai city Jiading District Hui Ping Road No. 505|Kunshan Tianyang hot melt adhesive Co. Ltd.|East China University of Science and Technology False: Shanghai Tianyang hot melt adhesive materials Limited by Share Ltd.|201802 Shanghai city Jiading District Hui Ping Road No. 505|Kunshan Tianyang hot melt adhesive Co. Ltd.|East China University of Science and Technology Number: 18 Volume: 30 |
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| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: SHANGHAI TIANYANG HEAT FUSION BONDING MATERIAL CO., LTD.:201802 JIADING, SHANGHAI; KUNSHAN TIAN YANG HOT MELT ADHESIVE CO., LTD., EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY TO: SHANGHAI TIANYANG HOLT MELT ADHESIVE MATERIALS CO., LTD.:201802 JIADING, SHANGHAI; KUNSHAN TIAN YANG HOT MELT ADHESIVE CO., LTD., EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY |
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| CP01 | Change in the name or title of a patent holder |
Address after: 201802 No. 505, Huiping Road, Jiading District, Shanghai Patentee after: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee after: Kunshan Tianyang New Material Co.,Ltd. Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 201802 No. 505, Huiping Road, Jiading District, Shanghai Patentee before: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: KUNSHAN TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201802 No. 505, Huiping Road, Jiading District, Shanghai Patentee after: Tianyang New Material (Shanghai) Technology Co.,Ltd. Patentee after: Kunshan Tianyang New Material Co.,Ltd. Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 201802 No. 505, Huiping Road, Jiading District, Shanghai Patentee before: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: Kunshan Tianyang New Material Co.,Ltd. Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY |
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| CP01 | Change in the name or title of a patent holder |