CN104672427A - High-hardness polyurethane flexible foam for automotive interior parts and preparation method of foam - Google Patents
High-hardness polyurethane flexible foam for automotive interior parts and preparation method of foam Download PDFInfo
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- CN104672427A CN104672427A CN201410854034.7A CN201410854034A CN104672427A CN 104672427 A CN104672427 A CN 104672427A CN 201410854034 A CN201410854034 A CN 201410854034A CN 104672427 A CN104672427 A CN 104672427A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 14
- 239000004814 polyurethane Substances 0.000 title claims abstract description 14
- 239000006260 foam Substances 0.000 title claims abstract description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 239000006071 cream Substances 0.000 claims description 3
- 210000002615 epidermis Anatomy 0.000 claims description 3
- 238000005562 fading Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 abstract description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 3
- 150000001412 amines Chemical class 0.000 abstract description 2
- 229920002545 silicone oil Polymers 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012974 tin catalyst Substances 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N mandelic acid Chemical compound OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses high-hardness polyurethane flexible foam for automotive interior parts. The polyurethane flexible foam comprises the following components in parts by weight: 100-110 parts of PPG, 2.0-2.5 parts of water, 0.15-0.20 part of an amine catalyst, 1 part of silicone oil, 0.12-0.15 part of a tin catalyst, 2.5-4 parts of a flame retardant FR, 4.0-4.3 parts of TDI and 36-38 parts of MDI. The invention also discloses a preparation method of the high hardness polyurethane flexible foam. According to the polyurethane flexible foam prepared by the invention, the hardness 25% IFD value is 71, and the tensile strength is 154 kPa.
Description
Technical field
The invention belongs to the field of chemical, relate to a kind of macromolecular material, be specifically related to soft bubble of a kind of high hardness polyurethane for automotive upholstery and preparation method thereof.
Background technology
In chemical field, usually can improve flexible PU foam hardness by the way of interpolation graft polymer polyols POP, increase isocyanate index.
But two kinds of methods all have its drawback:
(1) POP grafting vinyl cyanide and vinylbenzene, in formula, the too high meeting of addition causes the detrimentally affects such as post curing is excessively slow, flame retardant resistance reduction.
(2) increase isocyanate index and not only can improve production cost, the urea groups that excessive isocyanic ester bears simultaneously can extreme influence elongation at break, tear resistance.
Summary of the invention
The object of the invention is to, soft bubble of a kind of high hardness polyurethane for automotive upholstery and preparation method thereof is provided, to overcome the above-mentioned shortcoming and defect existing for existing amygdalic acid production method.
The technical problem that will solve required for the present invention, can be achieved through the following technical solutions:
As a first aspect of the present invention, the soft bubble of a kind of high hardness polyurethane for automotive upholstery, is characterized in that, according to weight parts, its formula is:
Further, preferred flexible PU foam, according to weight parts, its formula is:
The hardness 25%IFD of flexible PU foam is 71, tensile strength kPa is 154.
A preparation method for the soft bubble of high hardness polyurethane for automotive upholstery, is characterized in that, comprise the following steps:
(1) preparation of raw material: according to weight parts, is ready to described raw material according to formula;
(2) mix: by ready for step (1) raw material mixing, stir 6 ~ 8s with the speed of 6000rpm;
(3) milky white: mixture is poured in mould fast, observe it by the translucent thick liquid fading to full muddiness, turn white;
(4) gel: observe the foams risen and stop increasing, and have a large amount of bubble to spue from epidermis.
Wherein, in step (1), material temperature 27 DEG C ~ 30 DEG C.
Wherein in step (2), adopt head churning time 6 ~ 8S.
Wherein in step (3), cream time is 14 ~ 15s.
Wherein in step (4), gel time is 135 ~ 140s.
Beneficial effect of the present invention:
1, the present invention is by adjustment formula, uses modified isocyanate, and under the prerequisite not changing polyethers raw material, the hardness achieving soft bubble strengthens, and also greatly improves flame retardant resistance and tensile strength simultaneously.
2, under not increasing the prerequisite of cost, improve flexible PU foam hardness, do not affect other physical property and flame retardant resistance simultaneously.
3, kind and the consumption of isocyanic ester is adjusted, fine setting catalyst levels and production technique.Modification MDI and polymeric MDI is used to obtain the soft bubble of high-mechanic high rigidity.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples only for illustration of the present invention but not for limiting scope of the present invention.
Embodiment
The soft bubble of a kind of high hardness polyurethane for automotive upholstery, according to weight parts, its formula is: PPG100 ~ 110 part, 2.0 ~ 2.5 parts, water, amines catalyst 0.15 ~ 0.20 part, silicone oil 1 part, tin class catalyzer 0.12 ~ 0.15 part, fire retardant FR 2.5 ~ 4 parts, TDI 4.0 ~ 4.3 parts, MDI 36 ~ 38 parts.
Formula contrast is in table 1.
Table 1 is filled a prescription and is contrasted
A preparation method for the soft bubble of high hardness polyurethane for automotive upholstery, is characterized in that, comprise the following steps:
(1) preparation of raw material: according to weight parts, is ready to described raw material according to formula;
(2) mix: by ready for step (1) raw material mixing, stir 6 ~ 8s with the speed of 6000rpm;
(3) milky white: mixture is poured in mould fast, observe it by the translucent thick liquid fading to full muddiness, turn white;
(4) gel: observe the foams risen and stop increasing, and have a large amount of bubble to spue from epidermis.
Wherein, in step (1), material temperature 27 DEG C ~ 30 DEG C.
Wherein in step (2), adopt head churning time 6 ~ 8S.
Wherein in step (3), cream time is 14 ~ 15s.
Wherein in step (4), gel time is 135 ~ 140s.
The physical properties test comparison of flexible PU foam prepared by the present invention is in table 2.
Table 2 physical properties test comparison
| Test event | Former 40 formulas | Formula after optimizing |
| Density kg/m 3 | 38.6 | 40.1 |
| Hardness 25%IFD | 52 | 71 |
| Tensile strength kPa | 130 | 154 |
| Elongation at break % | 140 | 143 |
| Flame retardant resistance FMVSS302 | 76mm | 42mm |
| Smell test VW method | 3.5+ | 3.5 |
| VOC numerical value (mg/g) | 122mg/g | 109mg/g |
Can obviously be found out by the test result of table 2, use isocyanate-modified after formula produce 40 density foam, when not adding POP, hardness adds the sponge of POP far above routine, tensile strength improves simultaneously, and flame retardant resistance is almost doubled, and smell test improves than slightly with original formulation, overall performance all increases, and formulation cost almost remains unchanged.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.
Claims (8)
1. for the soft bubble of high hardness polyurethane of automotive upholstery, it is characterized in that, according to weight parts, its formula is:
2. flexible PU foam according to claim 1, is characterized in that according to weight parts, and its formula is:
3. flexible PU foam according to claim 1, is characterized in that: the hardness 25%IFD of flexible PU foam is 71, tensile strength kPa is 154.
4., as claimed in claim 1 for a preparation method for the soft bubble of high hardness polyurethane of automotive upholstery, it is characterized in that, comprise the following steps:
(1) preparation of raw material: according to weight parts, is ready to described raw material according to formula;
(2) mix: by ready for step (1) raw material mixing, stir 6 ~ 8s with the speed of 6000rpm;
(3) milky white: mixture is poured in mould fast, observe it by the translucent thick liquid fading to full muddiness, turn white;
(4) gel: observe the foams risen and stop increasing, and have a large amount of bubble to spue from epidermis.
5. preparation method according to claim 4, is characterized in that, in step (1), and material temperature 27 DEG C ~ 30 DEG C.
6. preparation method according to claim 4, is characterized in that, in step (2), adopts head churning time 6 ~ 8S.
7. preparation method according to claim 4, is characterized in that, in step (3), cream time is 14 ~ 15s.
8. preparation method according to claim 4, is characterized in that, in step (4), gel time is 135 ~ 140s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854034.7A CN104672427B (en) | 2014-12-31 | 2014-12-31 | Soft bubble of a kind of high hardness polyurethane for automotive upholstery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854034.7A CN104672427B (en) | 2014-12-31 | 2014-12-31 | Soft bubble of a kind of high hardness polyurethane for automotive upholstery and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104672427A true CN104672427A (en) | 2015-06-03 |
| CN104672427B CN104672427B (en) | 2018-02-13 |
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| CN201410854034.7A Active CN104672427B (en) | 2014-12-31 | 2014-12-31 | Soft bubble of a kind of high hardness polyurethane for automotive upholstery and preparation method thereof |
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| Country | Link |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153392A (en) * | 2015-11-01 | 2015-12-16 | 刘应才 | Preparation method of flame-retardant polyurethane foam material for automotive interior |
| CN105218773A (en) * | 2015-11-02 | 2016-01-06 | 苏州新区佳合塑胶有限公司 | A kind of soft PU foam recipe |
| CN106279632A (en) * | 2016-08-30 | 2017-01-04 | 福州联泓交通器材有限公司 | A kind of lightweight foamed cotton of automotive trim and preparation method thereof |
| CN106543405A (en) * | 2016-10-31 | 2017-03-29 | 江苏昊晟塑业科技有限公司 | Flame retardant type automotive trim expanded material |
| CN106565934A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Automobile trim foam material |
| CN107778444A (en) * | 2016-08-30 | 2018-03-09 | 重庆迅昌汽车零部件有限公司 | A kind of low smell, low VOC polyurethane foams and preparation method thereof |
| CN108017768A (en) * | 2017-10-26 | 2018-05-11 | 浙江川洋新材料股份有限公司 | A kind of soft bubble of high hardness polyurethane and preparation method thereof |
| CN108559251A (en) * | 2017-10-26 | 2018-09-21 | 浙江川洋新材料股份有限公司 | A kind of flame retardant type automotive trim sponge and preparation method thereof |
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| US3574149A (en) * | 1969-05-13 | 1971-04-06 | Gen Tire & Rubber Co | Flame retardant flexible polyurethane foams |
| CA2491978A1 (en) * | 2004-01-13 | 2005-07-13 | Bayer Materialscience Ag | Polyether esters as flame retardants for polyurethane flexible foams |
| CN102167791A (en) * | 2011-02-25 | 2011-08-31 | 北京万博汇佳科贸有限公司 | Reaction type flame retardant for soft polyurethane foam and application |
| CN104109227A (en) * | 2014-08-05 | 2014-10-22 | 北京李尔岱摩斯汽车系统有限公司 | Soft polyurethane foam material and preparation method thereof |
-
2014
- 2014-12-31 CN CN201410854034.7A patent/CN104672427B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3574149A (en) * | 1969-05-13 | 1971-04-06 | Gen Tire & Rubber Co | Flame retardant flexible polyurethane foams |
| CA2491978A1 (en) * | 2004-01-13 | 2005-07-13 | Bayer Materialscience Ag | Polyether esters as flame retardants for polyurethane flexible foams |
| CN102167791A (en) * | 2011-02-25 | 2011-08-31 | 北京万博汇佳科贸有限公司 | Reaction type flame retardant for soft polyurethane foam and application |
| CN104109227A (en) * | 2014-08-05 | 2014-10-22 | 北京李尔岱摩斯汽车系统有限公司 | Soft polyurethane foam material and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153392A (en) * | 2015-11-01 | 2015-12-16 | 刘应才 | Preparation method of flame-retardant polyurethane foam material for automotive interior |
| CN105218773A (en) * | 2015-11-02 | 2016-01-06 | 苏州新区佳合塑胶有限公司 | A kind of soft PU foam recipe |
| CN106279632A (en) * | 2016-08-30 | 2017-01-04 | 福州联泓交通器材有限公司 | A kind of lightweight foamed cotton of automotive trim and preparation method thereof |
| CN107778444A (en) * | 2016-08-30 | 2018-03-09 | 重庆迅昌汽车零部件有限公司 | A kind of low smell, low VOC polyurethane foams and preparation method thereof |
| CN106543405A (en) * | 2016-10-31 | 2017-03-29 | 江苏昊晟塑业科技有限公司 | Flame retardant type automotive trim expanded material |
| CN106565934A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Automobile trim foam material |
| CN108017768A (en) * | 2017-10-26 | 2018-05-11 | 浙江川洋新材料股份有限公司 | A kind of soft bubble of high hardness polyurethane and preparation method thereof |
| CN108559251A (en) * | 2017-10-26 | 2018-09-21 | 浙江川洋新材料股份有限公司 | A kind of flame retardant type automotive trim sponge and preparation method thereof |
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| Publication number | Publication date |
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| CN104672427B (en) | 2018-02-13 |
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Denomination of invention: The invention relates to a high hardness polyurethane soft foam for automobile interior trim parts and a preparation method thereof Effective date of registration: 20211202 Granted publication date: 20180213 Pledgee: Industrial Bank Co.,Ltd. Shanghai Jiading sub branch Pledgor: SHANGHAI XINYUAN NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021310000115 |
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Date of cancellation: 20231120 Granted publication date: 20180213 Pledgee: Industrial Bank Co.,Ltd. Shanghai Jiading sub branch Pledgor: SHANGHAI XINYUAN NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021310000115 |
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Denomination of invention: A high hardness polyurethane soft foam for automotive interior parts and its preparation method Effective date of registration: 20231122 Granted publication date: 20180213 Pledgee: Industrial Bank Co.,Ltd. Shanghai Nanxiang sub branch Pledgor: SHANGHAI XINYUAN NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2023310000761 |
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Address after: No. 2200 Huiwang Road, Waigang Industrial Park, Jiading District, Shanghai, 200072 Patentee after: Shanghai Xinyuan New Materials Technology (Group) Co.,Ltd. Country or region after: China Address before: No. 2200 Huiwang Road, Waigang Industrial Park, Jiading District, Shanghai, 200072 Patentee before: SHANGHAI XINYUAN NEW MATERIAL TECHNOLOGY CO.,LTD. Country or region before: China |