CN105061972A - Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition - Google Patents
Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition Download PDFInfo
- Publication number
- CN105061972A CN105061972A CN201510510219.0A CN201510510219A CN105061972A CN 105061972 A CN105061972 A CN 105061972A CN 201510510219 A CN201510510219 A CN 201510510219A CN 105061972 A CN105061972 A CN 105061972A
- Authority
- CN
- China
- Prior art keywords
- thermoplastic elastomer
- tvoc
- styrene
- low
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a low-TVOC thermoplastic elastomer composition for automotive interior trim. The low-TVOC thermoplastic elastomer composition is prepared from the following raw materials in percentage by weight: 30-40% of styrene-ethylene-butylene-styrene block copolymer, 5-15% of naphthenic oil, 35-45% of olefin block copolymer, 5-15% of homo-polypropylene, and 0.1-0.2% of an antioxygen. The low-TVOC thermoplastic elastomer composition has the advantages that infuse 9807 is added to be compounded with SEBS; due to the Infuse 9807 novel olefin block copolymer (OBC), after an elastomer is subjected to blending modification, the excellent properties that high-low temperature compressive deformation is enhanced and precipitation is avoided are improved; the low-TVOC thermoplastic elastomer composition is stably bonded with PP (polypropylene) through secondary injection molding or is subjected to direct injection molding to produce automotive interior trim parts, can be used in long time, cannot be precipitated out, is the environment-friendly material which is nontoxic and harmless to human body and environment, completely passes the standard detection of 'evaluation guide of air quality in passenger vehicles' (GB/T 27630-2011), and meets the use requirements of automotive interior trim products.
Description
Technical field
The present invention relates to a kind of thermoplastic elastic material for the low TVOC of automotive trim and preparation method, particularly relate to by completely by composition for thermoplastic elastomer of " in passenger car Air Quality Evaluation guide " (GB/T27630-2011) standard detection and preparation method thereof.
Background technology
Elastomerics has good weathering resistance, thermotolerance, compression deformability, the non-skid property that dumb light is dazzling and unexcellent, plays the features such as vibration and noise reducing sound when contacting with hard object such as metallic glasss, be widely used in automotive upholstery (as plate mat, sliding curtain, parcel tray, gear handle etc.).
As everyone knows, automotive upholstery (as plate mat, sliding curtain, parcel tray, gear handle etc.) parts generally adopt the coated one deck elastomerics of secondary injection molding technique to form.Traditional polyvinyl chloride and common elastomer material, at detection total carbon TVOC≤50 μ gC/g, cryolac number Fogging≤2mg can exceed limit value, be difficult to by " in passenger car Air Quality Evaluation guide " (GB/T27630-2011) standard, more easily separate out when particularly vehicle interior temperature is more than 50 degree, HUMAN HEALTH is worked the mischief.Current medium-to-high grade automotive upholstery elastomerics all generally uses imported materials and items, can be detected, but price is all between 43-50 unit by total carbon TVOC and cryolac number Fogging, cost and value overbalance.But general domestic common thermoplastic elastic material, be difficult to by this standard detection, cannot service requirements be reached, the threshold of automotive upholstery can not be entered.
Summary of the invention
The object of the invention is to the deficiency overcoming the existence of above-mentioned prior art, a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim is provided, composition for thermoplastic elastomer of the present invention, add its excellent resistance toheat of Infuse9807 and do not separate out, meet " in passenger car Air Quality Evaluation guide " (GB/T27630-2011) standard detection completely, reach automotive upholstery service requirements.
The object of the invention is to be achieved through the following technical solutions: a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim, be made up of the raw material of following weight percent content:
Preferably, described styrene-ethylene-butylene-styrene block copolymer is SEBSG1651.
Preferably, described naphthenic oil is KN4010.
Preferably, described olefin block copolymers is Infuse9807.
Preferably, described homo-polypropylene is medical grade homo-polypropylene PPR370Y.
Preferably, described oxidation inhibitor is a kind of Hinered phenols antioxidant.
The invention still further relates to a kind of preparation method of the composition for thermoplastic elastomer for the low TVOC of automotive trim, comprise the steps:
(1) raw material is taken by above-mentioned component and weight percent content;
(2) styrene-ethylene-ethylene-propylene-styrene block copolymer in above-mentioned raw materials and naphthenic oil are first mixed 20 ~ 30 minutes at high mixer;
(3) add other raw material olefin segmented copolymer, homo-polypropylene and oxidation inhibitor again to mix, take out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 350 revs/min, and processing temperature is 180 ~ 210 DEG C.
Compared with prior art, the beneficial effect that the present invention has is:
1, composition for thermoplastic elastomer of the present invention can the bonding PP of quadric injection mould or direct Injection moulded part, and be applicable to as middle-to-high end car inside gadget, with metal, play Anti-skid shock-absorbing noise reducing during the hard object contacts such as glass, proportion is low, processes the features such as simple.
2, composition for thermoplastic elastomer of the present invention is by total carbon TVOC≤50 μ gC/g, the detection of cryolac number Fogging≤2mg, substitute import material, meet " in passenger car Air Quality Evaluation guide " (GB/T27630-2011) standard detection completely, reach automotive upholstery service requirements.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The present invention adopts SEBS6151 rubber to be matrix, add Infuse9807 and SEBS composite, the characteristic do not separated out is added after the excellent resistance toheat of Infuse9807 makes elastomer blended modifier, by total carbon TVOC≤50 μ gC/g, the examination criteria of cryolac number Fogging≤2mg.
Styrene-ethylene-butylene-styrene block copolymer (SEBS) in the present invention is exactly the abbreviation of Styrenebutadienestyreneblockcopolymer; SEBS take polystyrene as end segment, and the ethylene-butene copolymer obtained with polyhutadiene hydrogenation is the linear three embedding multipolymers of middle spring block.SEBS is not containing unsaturated double-bond, and thus it has the mechanical property of good weathering resistance, thermotolerance, compression deformability and excellence.Saturation type thermoplastic elastomer SEBS due to soft section be the alkene architecture of saturation type, SEBS thermoplastic elastomer is a kind of novel high polymer material between rubber and resin, not only can replace rubber.SEBS has the elasticity identical with conventional rubber, recovery, obdurability and weathering resistance, and the characteristic of the equally easy machine-shaping of thermoplastics and can reclaim the advantages such as use again.
Infuse9807 is a kind of new olefin segmented copolymer (OBC) of Dow company breaches olefinic thermoplastic elastomer limitation with the block structure of its uniqueness.The improvement that elasticity and high thermal resistance balance, has higher Tc, adds energy rapid shaping in man-hour, no matter under room temperature or under high temperature, all have better recovery of elasticity and compressive set, wear resistance is improved, add system ratio more thus improve material thermotolerance and do not separate out.
Polypropylene is the Chinese of PP, and English is Polypropylene, and its formability is splendid, physical strength is high, and water tolerance, chemical-resistant are good, adds the tensile strength that can improve material in system and not Precipitation Characteristics.
Naphthenic oil, it is the one to saturated cyclic carbon-chain structure hydro carbons, its principal character has one or more saturated cyclic carbochain in molecule, carbochain in the form of a ring, undersaturated double bond structure is had between carbon and carbon, this double bond structure has just been doomed its chemical activity, adds the soft durometer can improving material in system.
Hinered phenols is traditional chain termination type oxidation inhibitor, can prevent or hinder the compound of slow organic materials oxidation.It can be caught reactive radical species and generate inactive radical, thus chain reaction is stopped; Or the polymkeric substance hydroperoxide produced in oxidising process can be decomposed and generate stable nonactive product, thus interrupt chain reaction.Effect is the oxidising process delaying macromolecular material, ensures that they can successfully carry out processing and extend its work-ing life.
embodiment 1 ~ 4
In embodiment 1 ~ 4, olefin block copolymers is that the commodity that Dow Chemical company produces are called Infuse9807; Styrene-ethylene-butylene-styrene block copolymer is that the commodity that Ke Teng company of the U.S. produces are called the styrene-ethylene-butylene-styrene block copolymer of G1651; Homo-polypropylene is the homopolymerization PP that SK petro-chemical corporation of Korea S produces, and commodity are called PPR370Y; Naphthenic oil is the naphthenic oil that Karamay, Xinjiang is produced, and commodity are called KN4010; Oxidation inhibitor is Hinered phenols antioxidant, is specially the AO1010 of vapour Bagong department.
embodiment 1
The raw material adopted comprises styrene-ethylene-butylene-styrene block copolymer (SEBS6151) 35kg, naphthenic oil (KN4010) 9.9kg, olefin block copolymers (Infuse9807) 40kg, homo-polypropylene (PPR370Y) 15kg, oxidation inhibitor (AO1010) 0.1kg.
Its preparation method is as follows:
(1) raw material is taken by each component shown in table 1 and weight percent content thereof;
(2) SEBS in above-mentioned raw materials and naphthenic oil (softening agent) are first mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 300 revs/min, and processing temperature is 180 ~ 210 DEG C.
embodiment 2
The raw material adopted comprises styrene-ethylene-butylene-styrene block copolymer (SEBS6151) 30kg, naphthenic oil (KN4010) 14.8kg, olefin block copolymers (Infuse9807) 45kg, homo-polypropylene (PPR370Y) 10kg, oxidation inhibitor (AO1010) 0.2kg.
Its preparation method is as follows:
(1) raw material is taken by each component shown in table 1 and weight percent content thereof;
(2) SEBS in above-mentioned raw materials and naphthenic oil (softening agent) are first mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 300 revs/min, and processing temperature is 180 ~ 210 DEG C.
embodiment 3
The raw material adopted comprises styrene-ethylene-butylene-styrene block copolymer (SEBS6151) 40kg, naphthenic oil (KN4010) 15kg, olefin block copolymers (Infuse9807) 35kg, homo-polypropylene (PPR370Y) 9.8kg, oxidation inhibitor (AO1010) 0.2kg.
Its preparation method is as follows:
(1) raw material is taken by each component shown in table 1 and weight percent content thereof;
(2) SEBS in above-mentioned raw materials and naphthenic oil (softening agent) are first mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 300 revs/min, and processing temperature is 180 ~ 210 DEG C.
embodiment 4
The raw material adopted comprises styrene-ethylene-butylene-styrene block copolymer (SEBS6151) 35kg, naphthenic oil (KN4010) 14.8kg, olefin block copolymers (Infuse9807) 35kg, homo-polypropylene (PPR370Y) 15kg, oxidation inhibitor (AO1010) 0.2kg.
Its preparation method is as follows:
(1) raw material is taken by each component shown in table 1 and weight percent content thereof;
(2) SEBS in above-mentioned raw materials and naphthenic oil (softening agent) are first mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 300 revs/min, and processing temperature is 180 ~ 210 DEG C.
comparative example 5
In comparative example 5, the raw material of employing is with embodiment 1 ~ 4, and its concrete component is as shown in table 1.
Its preparation method is:
(1) raw material is taken by each component shown in table 1 and weight percent content thereof;
(2) SEBS in above-mentioned raw materials and naphthenic oil are first mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 300 revs/min, and processing temperature is 180 ~ 210 DEG C.
Table 1
As shown in Table 1: comparing comparative example 1# and comparative example 2# can find out, when reducing the content of naphthenic oil, add the material also corresponding minimizing that 10%Infuse9807 separates out.As can be seen from comparative example 3#, when Infuse9807 is added to 40%, the material of separating out is qualified, reach the limit value of total carbon TVOC≤50 μ gC/g cryolac number Fogging≤2mg, " in passenger car Air Quality Evaluation guide " (GB/T27630-2011) standard detection of middle-to-high end car inside gadget can be met completely, reach service requirements.
Claims (10)
1. for a composition for thermoplastic elastomer of the low TVOC of automotive trim, it is characterized in that, be made up of the raw material of following weight percent content: styrene-ethylene-butylene-styrene block copolymer 29 ~ 42%, naphthenic oil 4 ~ 16%,
Olefin block copolymers 34 ~ 46%, homo-polypropylene 4 ~ 16%, oxidation inhibitor 0.1 ~ 0.2%.
2. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1, it is characterized in that, be made up of the raw material of following weight percent content: styrene-ethylene-butylene-styrene block copolymer 35kg, naphthenic oil 9.9kg, olefin block copolymers 40kg, homo-polypropylene 15kg, oxidation inhibitor 0.1kg.
3. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1, it is characterized in that, be made up of the raw material of following weight percent content: styrene-ethylene-butylene-styrene block copolymer 30kg, naphthenic oil 14.8kg, olefin block copolymers 45kg, homo-polypropylene 10kg, oxidation inhibitor 0.2kg.
4. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1, it is characterized in that, be made up of the raw material of following weight percent content: styrene-ethylene-butylene-styrene block copolymer 30kg, naphthenic oil 14.8kg, olefin block copolymers 45kg, homo-polypropylene 10kg, oxidation inhibitor 0.2kg.
5. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1-4, is characterized in that, described styrene-ethylene-butylene-styrene block copolymer is SEBSG1651.
6. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1-4, is characterized in that, described naphthenic oil is KN4010.
7. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1-4, is characterized in that, described olefin block copolymers is Infuse9807.
8. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1-4, is characterized in that, described homo-polypropylene is medical grade homo-polypropylene PPR370Y.
9. a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim according to claim 1-4, is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant.
10. the preparation method of a kind of composition for thermoplastic elastomer for the low TVOC of automotive trim as described in claim 1-9, is characterized in that, comprise the steps:
(1) raw material is taken according to weight percent content;
(2) styrene-ethylene-ethylene-propylene-styrene block copolymer in above-mentioned raw materials and naphthenic oil are mixed 20 ~ 30 minutes at high mixer;
(3) adding other raw material is again mixed even, takes out;
(4) then put into twin-screw machine extruding pelletization, the engine speed of screw rod is 200 ~ 350 revs/min, and processing temperature is 180 ~ 210 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510219.0A CN105061972A (en) | 2015-08-19 | 2015-08-19 | Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510219.0A CN105061972A (en) | 2015-08-19 | 2015-08-19 | Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105061972A true CN105061972A (en) | 2015-11-18 |
Family
ID=54491509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510510219.0A Pending CN105061972A (en) | 2015-08-19 | 2015-08-19 | Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105061972A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585810A (en) * | 2015-11-24 | 2016-05-18 | 台橡（上海）实业有限公司 | Novel low-VOC thermoplastic elastomer automobile carpet surface material |
| CN106497089A (en) * | 2016-10-11 | 2017-03-15 | 武汉理工大学 | A kind of TPE material of cladding PP skeletons and preparation method thereof |
| CN106633276A (en) * | 2016-10-21 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | High-performance polyolefin composite material and preparation method thereof |
| CN108456429A (en) * | 2018-01-15 | 2018-08-28 | 东莞市安拓普塑胶聚合物科技有限公司 | A kind of thermoplastic elastomer (TPE) and its preparation method and application that Applicable temperature range is wide |
| CN111704875A (en) * | 2020-07-03 | 2020-09-25 | 亿铖达（深圳）新材料有限公司 | Hot-melt protective adhesive and preparation method and application thereof |
| CN116023789A (en) * | 2023-02-06 | 2023-04-28 | 江西广源化工有限责任公司 | High-wear-resistance damping material and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100593A (en) * | 2007-05-22 | 2008-01-09 | 深圳职业技术学院 | Environmental protection type SEBS thermoplastic elastic body sealing strip material and preparation method thereof |
| CN102634159A (en) * | 2012-04-25 | 2012-08-15 | 益阳达普林科技有限公司 | SEBS (styrenic block copolymer) thermoplastic elastomer and preparation method thereof |
| CN102875948A (en) * | 2012-09-28 | 2013-01-16 | 新昌县绿泰塑胶有限公司 | Matte thermoplastic elastomer composition and preparation method thereof |
| CN104619766A (en) * | 2012-09-07 | 2015-05-13 | 陶氏环球技术有限责任公司 | Injection-moldable sound-deadening filled thermoplastic polyolefin composition |
| CN104927285A (en) * | 2015-06-27 | 2015-09-23 | 上海俊尔新材料有限公司 | Thermoplastic elastomer composition with low TVOC and low Fogging for automotive trim and preparation method of thermoplastic elastomer composition |
-
2015
- 2015-08-19 CN CN201510510219.0A patent/CN105061972A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100593A (en) * | 2007-05-22 | 2008-01-09 | 深圳职业技术学院 | Environmental protection type SEBS thermoplastic elastic body sealing strip material and preparation method thereof |
| CN102634159A (en) * | 2012-04-25 | 2012-08-15 | 益阳达普林科技有限公司 | SEBS (styrenic block copolymer) thermoplastic elastomer and preparation method thereof |
| CN104619766A (en) * | 2012-09-07 | 2015-05-13 | 陶氏环球技术有限责任公司 | Injection-moldable sound-deadening filled thermoplastic polyolefin composition |
| CN102875948A (en) * | 2012-09-28 | 2013-01-16 | 新昌县绿泰塑胶有限公司 | Matte thermoplastic elastomer composition and preparation method thereof |
| CN104927285A (en) * | 2015-06-27 | 2015-09-23 | 上海俊尔新材料有限公司 | Thermoplastic elastomer composition with low TVOC and low Fogging for automotive trim and preparation method of thermoplastic elastomer composition |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585810A (en) * | 2015-11-24 | 2016-05-18 | 台橡（上海）实业有限公司 | Novel low-VOC thermoplastic elastomer automobile carpet surface material |
| CN106497089A (en) * | 2016-10-11 | 2017-03-15 | 武汉理工大学 | A kind of TPE material of cladding PP skeletons and preparation method thereof |
| CN106633276A (en) * | 2016-10-21 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | High-performance polyolefin composite material and preparation method thereof |
| CN108456429A (en) * | 2018-01-15 | 2018-08-28 | 东莞市安拓普塑胶聚合物科技有限公司 | A kind of thermoplastic elastomer (TPE) and its preparation method and application that Applicable temperature range is wide |
| CN111704875A (en) * | 2020-07-03 | 2020-09-25 | 亿铖达（深圳）新材料有限公司 | Hot-melt protective adhesive and preparation method and application thereof |
| CN111704875B (en) * | 2020-07-03 | 2023-01-06 | 亿铖达（深圳）新材料有限公司 | Hot-melt protective adhesive and preparation method and application thereof |
| CN116023789A (en) * | 2023-02-06 | 2023-04-28 | 江西广源化工有限责任公司 | High-wear-resistance damping material and preparation method and application thereof |
| CN116023789B (en) * | 2023-02-06 | 2024-03-19 | 江西广源化工有限责任公司 | High-wear-resistance damping material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104927285A (en) | Thermoplastic elastomer composition with low TVOC and low Fogging for automotive trim and preparation method of thermoplastic elastomer composition | |
| CN105061972A (en) | Low-TVOC thermoplastic elastomer composition for automotive interior trim and preparation method of low-TVOC thermoplastic elastomer composition | |
| CN103709763A (en) | Low-compression permanent deformation silicone rubber composition and preparation method thereof | |
| CN106674962A (en) | PC/ABS alloy with excellent thermal aging resistance and preparation method of PC/ABS alloy | |
| CN104530573A (en) | Low-gloss low-warpage soft-touch-feeling vehicle polypropylene composition as well as preparation method and application thereof | |
| KR101916247B1 (en) | Compound composition for a vehicle interior material by using natural fiber | |
| KR101438899B1 (en) | Eco-friendly plastic compositions with excellent mechanical property | |
| CN100537653C (en) | Material of polyolefin elastomer dedicated to skins of instruments decorated inside auto car | |
| CN104292741A (en) | ABS (acrylonitrile butadiene styrene copolymers) composite material and preparation method thereof | |
| CN106751115A (en) | A kind of PVC alloy material | |
| CN102875898A (en) | Organosilicone modified polypropylene and preparation method thereof | |
| CN111154222A (en) | ABS/PMMA alloy and preparation method thereof | |
| US20040132886A1 (en) | Accelerator free nitrile gloves | |
| CN110655710B (en) | Scratch-resistant impact-resistant polypropylene material and preparation method thereof | |
| CN105385088B (en) | A kind of polypropene composition and preparation method thereof | |
| CN107815024B (en) | Scratch-resistant PP (polypropylene) automobile special material and preparation method thereof | |
| CN110204829A (en) | A kind of PP plastics of high tensile and preparation method thereof | |
| CN108530786B (en) | Anti-aging HIPS foamed plastic and preparation method thereof | |
| CN112662085B (en) | Ultrahigh heat-resistant ABS material with excellent bonding strength with polyurethane and preparation method thereof | |
| CN112679859B (en) | Transparent polypropylene composite material for new energy automobile and preparation method thereof | |
| CN112745631B (en) | Toughened scratch-resistant ABS/PET alloy and preparation method thereof | |
| CN102675743B (en) | Comfortable type polypropylene material for automobile bumper and preparation method thereof | |
| EP3135717A1 (en) | Fiber-reinforced plastic composition, and fiber-reinforced composite with improved impact performance, prepared therefrom | |
| CN112321950B (en) | High-impact polypropylene material and preparation method thereof | |
| WO2005100471A2 (en) | Thermoplastic elastomer resin composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |