KR20170036193A - Fiber-reinforced composite material and method of manufacturing the same - Google Patents
Fiber-reinforced composite material and method of manufacturing the same Download PDFInfo
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- KR20170036193A KR20170036193A KR1020150134867A KR20150134867A KR20170036193A KR 20170036193 A KR20170036193 A KR 20170036193A KR 1020150134867 A KR1020150134867 A KR 1020150134867A KR 20150134867 A KR20150134867 A KR 20150134867A KR 20170036193 A KR20170036193 A KR 20170036193A
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- fiber reinforced
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
Abstract
Description
Fiber reinforced composite material and a method of manufacturing the same.
Generally, in order to improve the mechanical and impact properties and to secure a lighter effect, a composite material in which fibers and a resin are mixed is produced. At this time, if the content of the fibers is increased, the impact characteristics can be improved. However, Resulting in a decrease in weight. A method of adding inorganic materials such as talc, calcium carbonate, Mica, and wollastonite may also be used to improve strength and rigidity. However, in this case, the advantage of reducing the material cost can be obtained, but the specific gravity of the composite material is increased and the surface physical properties are deteriorated, and it is difficult to disperse and distribute the inorganic material in the manufacturing process, and the flowability and workability may be deteriorated.
In the industrial sector, which has been extensively used in the external environment such as automobiles and building materials, many composites with high level of toughness are required. Especially for automotive exterior parts such as back beam, seat back and under cover, which are highly exposed to external impacts. At this time, the degree of resistance to external impact is the most important component of the composite and the essential reference element that can be used for the component. The two most important factors affecting the properties of the composite are strength and elongation. These strength and elongation are opposite to each other. The composite material having low elongation and relatively high elongation is excellent in impact absorption performance but not high in strength because it is high in strength and tends to be broken when it is hard. Therefore, various researches are actively carried out to make composite materials having both strength and elongation. In addition, the need for lightweight composites in various industries is also increasing.
One embodiment of the present invention provides a fiber-reinforced composite material that is superior in both impact absorption performance and light weight effect.
Another embodiment of the present invention provides a method for manufacturing a fiber-reinforced composite material which can easily improve the impact absorption performance and light weight effect of the fiber-reinforced composite material, and has an advantageous advantage in terms of manufacturing cost and process efficiency.
In one embodiment of the present invention, there is provided a fiber-reinforced composite material exhibiting an excellent impact-absorbing performance and an excellent lightweight property, comprising a thermoplastic resin, a fiber, and a fiber-reinforced composite material comprising an ethylene -? - olefin block copolymer do.
In another embodiment of the present invention, there is provided a method for producing a fiber-reinforced composite material that achieves high shock absorption performance and light weight effect at high efficiency and low cost, comprising the steps of charging a thermoplastic resin and an ethylene -? - olefin block copolymer into a first extruder Mixing the thermoplastic resin composition to prepare a thermoplastic resin composition; Introducing the thermoplastic resin composition and fiber into a second extruder, and impregnating the fiber with the thermoplastic resin to produce a fiber-reinforced thermoplastic resin; And pressing the fiber-reinforced thermoplastic resin to produce a fiber-reinforced composite material.
The fiber-reinforced composite material may exhibit an excellent impact absorbing performance and an excellent lightweight property.
Further, by using the method for producing a fiber-reinforced composite material, a fiber-reinforced composite material exhibiting high efficiency and low cost, excellent impact absorption performance and excellent light weight effect can be manufactured.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the invention pertains. Only. Like reference numerals refer to like elements throughout the specification.
In one embodiment of the present invention, there is provided a fiber-reinforced composite material comprising a thermoplastic resin, a fiber, and an ethylene- alpha -olefin block copolymer.
The fiber-reinforced composite material exhibits improved impact absorption performance by including the ethylene- α -olefin block copolymer. Specifically, the impact absorption performance at room temperature and low temperature can be improved. In addition, the fiber-reinforced composite material can exhibit excellent strength and lightweight properties at a level that can replace metals.
The ethylene-? -Olefin block copolymer is a block copolymer, and is a copolymer composed of an ethylene block and an? -Olefin block. The ethylene /? - olefin block copolymer of the block type is characterized in that the degree of branch is lower than that of the ethylene /? - olefin copolymer of the type in which the? -Olefin is branched.
The ethylene -? - olefin block copolymer may have a glass transition temperature of -60 占 폚 or less, for example, from about -60 占 폚 to about -65 占 폚 due to its chemical structure. The ethylene -? - olefin block copolymer has a glass transition temperature within the above range, thereby greatly improving the tensile properties and impact absorption characteristics.
The ethylene -? - olefin block copolymer may comprise about 15% to about 30% by weight of? -Olefins relative to the total weight of the ethylene -? - olefin block copolymer. When the ethylene-? -Olefin block copolymer contains less than about 15 wt%? -Olefin, the low-temperature impact absorption performance is deteriorated. When the ethylene-? -Olefin block copolymer contains more than about 30 wt%? -Olefin, There is a fear that the strength and rigidity of the reinforced composite material may be lowered.
The '? -Olefin' may include one selected from the group consisting of propylene, butene, pentene, hexene, propene, octene, and combinations thereof, and may include, for example, octene.
In addition, the ethylene -? - olefin block copolymer may have a melt peak temperature of about 100 ° C to about 150 ° C. The melt peak temperature can be measured using differential scanning calorimetry (DSC). When the ethylene- -olefin block copolymer has a melt peak temperature of more than about 150 DEG C, it is brittle at room temperature There is a possibility that the shock absorbing performance is significantly lowered.
The ethylene -? - olefin block copolymer may have a tensile elongation of about 1000% or more, specifically about 1000% to about 5000%. When the ethylene /? - olefin block copolymer has a tensile elongation of less than about 1000%, the elongation and impact resistance characteristics of the fiber-reinforced composite material produced from the ethylene /? - olefin block copolymer may deteriorate.
The ethylene-? -Olefin block copolymer has the above-mentioned physical properties and can be mixed with a thermoplastic resin and fibers to ensure excellent compatibility in the production of the fiber-reinforced composite material. The fiber-reinforced composite material has improved impact absorption and tensile properties Can be given.
Wherein the fiber reinforced composite material comprises a thermoplastic resin, wherein the thermoplastic resin is selected from the group consisting of an aromatic vinyl resin, a rubber modified aromatic vinyl resin, a polyphenylene ether resin, a polycarbonate resin, a polyester resin, a methacrylate resin, Based resin, a polyarylene sulfide-based resin, a polyamide-based resin, a polyvinyl chloride-based resin, a polyolefin-based resin, and a combination thereof.
For example, the thermoplastic resin may include a polyolefin-based resin, and may specifically include a polypropylene-based resin. When the thermoplastic resin contains a polypropylene resin, it may be advantageous in terms of cost competitiveness and may be advantageous to improve the impact strength and tensile properties of the fiber-reinforced composite material together with the ethylene /? - olefin block copolymer. More specifically, the polypropylene resin may include a propylene-ethylene copolymer resin or a polypropylene homopolymer resin.
The fiber-reinforced composite material may include fibers to secure both a light weight effect and a strength improvement effect.
Specifically, the fibers may include carbon fibers or glass fibers, and may include glass fibers, for example.
The fibers may have a cross-sectional diameter of from about 10 [mu] m to about 20 [mu] m. By having the diameter of the fiber within the above-mentioned range, the fiber can be contained in a high content in the composite material, thereby securing strength and rigidity with respect to the thickness, advantageously securing lightweight characteristics, and being advantageous from the viewpoint of workability in the manufacturing process.
The fiber-reinforced composite material may include from about 40% to about 70% by weight of the thermoplastic resin, for example, from about 50% to about 65% by weight. When the thermoplastic resin is included in the above range, the fiber can be uniformly impregnated in the manufacturing process, and the fiber-reinforced composite material can secure a certain level of support performance.
In addition, the fiber-reinforced composite material may include about 5 wt% to about 15 wt%, for example, about 8 wt% to about 12 wt% of the ethylene -? - olefin block copolymer . When the ethylene-a-olefin block copolymer is included in the above range, it can be mixed well with the thermoplastic resin, and a required impact performance can be ensured at room temperature and low temperature.
Also, the fiber-reinforced composite material may include about 20% to about 50% by weight of the fiber, for example, about 20% to about 35% by weight. If the fibers are contained in the above range, the strength and rigidity required for the fiber-reinforced composite material can not be secured, and the lightweight characteristics may be deteriorated. In addition, when the fibers are contained in a range exceeding the above range, it is difficult to uniformly impregnate the fibers in the fiber-reinforced composite material during the manufacturing process, and the surface properties of the fiber-reinforced composite material may be deteriorated.
The fiber-reinforced composite material may include both the thermoplastic resin, the fiber, and the ethylene -? - olefin block copolymer, and through combination thereof, excellent lightweight properties and improved shock absorption performance can be secured.
Specifically, the impact strength of the fiber-reinforced composite material may be from about 5 J / mm to about 10 J / mm, for example from about 6 J / mm to about 10 J / mm, for example from about 7 J / 10J / mm. More specifically, the fiber-reinforced composite material may satisfy both of the above-described ranges and the fall impact strength at a room temperature of about 20 캜 to about 30 캜 and a low temperature of about -40 캜 to about -20 캜.
Another embodiment of the present invention provides a method of making the fiber-reinforced composite. Specifically, the method for producing a fiber-reinforced composite material includes: preparing a thermoplastic resin composition by injecting and mixing a thermoplastic resin and an ethylene-? -Olefin block copolymer into a first extruder; Introducing the thermoplastic resin composition and fiber into a second extruder, and impregnating the fiber with the thermoplastic resin to produce a fiber-reinforced thermoplastic resin; And manufacturing the fiber-reinforced composite material by squeezing the fiber-reinforced thermoplastic resin.
The fiber-reinforced composite material is produced by using a long fiber thermoplastic-direct (LFT-D) method. The LFT-D extruder may comprise a first extruder and a second extruder.
Specifically, the production method includes a step of adding a thermoplastic resin and an ethylene-? -Olefin block copolymer to the first extruder and mixing them to prepare a thermoplastic resin composition. At this time, matters relating to the thermoplastic resin and the ethylene -? - olefin block copolymer are as described above.
The thermoplastic resin composition may contain, in addition to the thermoplastic resin and the ethylene-? - olefin block copolymer, a compatibilizer, a heat stabilizer, an antioxidant, an ultraviolet absorber, a light stabilizer, a pigment, a dispersant, a nucleating agent, a processing lubricant, a coupling agent, ≪ / RTI > and combinations thereof.
Specifically, the thermoplastic resin composition may include a compatibilizing agent and a heat stabilizer. In this case, compatibility of the thermoplastic resin and the ethylene- α -olefin block copolymer can be improved. The thermoplastic resin and the thermoplastic resin The bonding force of the resin composition can also be improved. In addition, excellent durability can be realized when used as an automotive exterior material, etc., which is exposed to the outside through the heat stabilizer.
The method for manufacturing a fiber-reinforced composite material may include the step of injecting the thermoplastic resin composition and fiber into a second extruder, and impregnating the fiber with the thermoplastic resin to produce a fiber-reinforced thermoplastic resin.
At this time, the fibers may be put into a continuous fiber form from a roving. The fibers can be inserted as continuous fibers, thereby realizing an excellent strength improvement effect in the fiber-reinforced composite material.
If desired, the fibers may be mixed with continuous fibers and non-continuous fibers in the form of pellets. Unlike continuous fibers, the pellet-shaped non-continuous fibers have a shape cut by a predetermined length and impregnated with a thermoplastic resin so that a thermoplastic resin is applied to the surface. By using the non-continuous fibers, the production of a composite material containing a high content of fibers It can be possible.
When the fibers are used in combination of continuous fibers and non-continuous fibers in the form of pellets, the content of fibers in the fiber-reinforced composite material can be easily adjusted to a high level and at the same time, excellent dispersibility can be ensured, Can be improved.
The ethylene-? -Olefin block copolymer may be pelletized when it is fed into the first extruder. The pellet-like ethylene-? -Olefin block copolymer has a shape of a particle, and may have a cylindrical shape cut into, for example, a rod having a diameter of several mm and cut to a dimension slightly longer than the diameter. The ethylene -? - olefin block copolymer is pelletized to facilitate handling as a raw material, and can be mixed well with thermoplastic resins and fibers.
The fiber-reinforced composite material manufacturing method uses an LFT-D extruder composed of a first extruder and a second extruder. In order to disperse the ethylene-α-olefin block copolymer to be pelletized, the shear effect of the extruder is increased , It may be advantageous to preferentially introduce the ethylene-? -Olefin block copolymer into the first extruder.
The ethylene-? -Olefin block copolymer is preferentially injected into the first extruder, so that the ethylene-? -Olefin block copolymer can be uniformly dispersed in the fiber-reinforced composite material, and excellent shock absorption performance can be realized at room temperature and low temperature.
In the method for producing a fiber-reinforced composite material, the thermoplastic resin, the ethylene-? -Olefin block copolymer and the fiber are mixed and extruded to produce a fiber-reinforced thermoplastic resin.
The fiber-reinforced composite material is produced by molding the fiber-reinforced thermoplastic resin. Specifically, the fiber-reinforced composite material can be manufactured by compressing the fiber-reinforced thermoplastic resin after compression and cutting the fiber-reinforced thermoplastic material into a predetermined size. At this time, the pressing of the fiber-reinforced thermoplastic resin can be performed by pressing at a proper pressure according to a desired shape of the final product.
As described above, the fiber-reinforced composite material produced using the method of producing a fiber-reinforced composite material has the advantage of securing an excellent impact absorption performance and excellent lightweight characteristics at the same time, showing a specific range of impact strength and specific gravity.
Further, excellent strength and rigidity suitable for use in exterior materials for automobiles or building materials can be ensured.
Hereinafter, specific embodiments of the present invention will be described. However, the embodiments described below are only intended to illustrate or explain the present invention, and thus the present invention should not be limited thereto.
<
Example
And
Comparative Example
>
Example 1-3
A pellet-shaped ethylene -? - olefin block copolymer having physical properties shown in Table 1 below; Polypropylene homopolymer resin; Thermal stabilizers; And a compatibilizing agent were introduced into a first extruder and melt-mixed to prepare a thermoplastic resin composition. Then, the thermoplastic resin composition is put into a second extruder, glass fibers in the form of continuous fibers are introduced into the second extruder from a roving, and the thermoplastic resin composition is impregnated with the glass fiber to produce a fiber- Respectively. Then, the fiber-reinforced thermoplastic resin was pressed to produce a fiber-reinforced composite material.
Comparative Example One
A fiber-reinforced composite material was prepared in the same manner as in Examples 1 to 3 except that the ethylene-? -Olefin block copolymer was not included.
The contents of the respective components in Examples 1-3 and Comparative Example 1 are shown in Table 2 below. The content of each component is expressed as% by weight.
<Evaluation>
Experimental Example One: Impact strength Measure
A circular specimen having a diameter of 100 mm and a thickness of 3 mm was prepared for each of the fiber-reinforced composites of the above Examples and Comparative Examples, and a specimen having a temperature of 25 ° C and a temperature of -35 (ASTM D3763) Lt; 0 > C, and the results are as shown in Table 3 below.
Experimental Example 2: Measurement of specific gravity
The specific gravity of each of the fiber-reinforced composites of Examples and Comparative Examples was measured according to a specific gravity measurement method (ASTM D792). The results are shown in Table 3 below.
The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3, It can be seen that the absorption performance is improved.
In addition, when the results of Examples 1-3 are compared, it can be seen that when the ethylene- &alpha; -olefin block copolymer is contained in a certain range, it is mixed with the polypropylene homopolymer resin to form an improved impact Absorbing performance can be realized.
Claims (16)
Fiber reinforced composites.
The ethylene -? - olefin block copolymer has a glass transition temperature of -60 占 폚 or lower
Fiber reinforced composites.
Wherein the ethylene -? - olefin block copolymer comprises 15% by weight to 30% by weight of?
Fiber reinforced composites.
Wherein said alpha -olefin comprises one selected from the group consisting of propylene, butene, pentene, hexene, propene, octene, and combinations thereof
Fiber reinforced composites.
The ethylene-? -Olefin block copolymer has a melt peak temperature of 100 ° C. to 150 ° C.
Fiber reinforced composites.
The ethylene -? - olefin block copolymer has a tensile elongation of 1000% or more
Fiber reinforced composites.
The thermoplastic resin may be an aromatic vinyl resin, a rubber modified aromatic vinyl resin, a polyphenylene ether resin, a polycarbonate resin, a polyester resin, a methacrylate resin, a polyarylene sulfide resin, a polyamide resin , A polyvinyl chloride resin, a polyolefin resin, and a combination thereof.
Fiber reinforced composites.
Wherein the fibers comprise carbon fibers or glass fibers
Fiber reinforced composites.
The fibers may have an average cross-sectional diameter of from 10 탆 to 20 탆
Fiber reinforced composites.
And 40 to 70% by weight of the thermoplastic resin
Fiber reinforced composites.
And 5 to 15% by weight of the ethylene -? - olefin block copolymer
Fiber reinforced composites.
Wherein said fibers comprise 20 wt% to 50 wt%
Fiber reinforced composites.
The impact strength of the fiber-reinforced composite material is preferably 5 J / mm to 10 J / mm
Fiber reinforced composites.
Introducing the thermoplastic resin composition and fiber into a second extruder, and impregnating the fiber with the thermoplastic resin to produce a fiber-reinforced thermoplastic resin; And
And pressing the fiber-reinforced thermoplastic plastic to produce a fiber-reinforced composite material
A method for manufacturing a fiber reinforced composite material.
The ethylene-? -Olefin block copolymer is pelletized into the first extruder
A method for manufacturing a fiber reinforced composite material.
The fibers are fed from the roving in the form of continuous fibers
A method for manufacturing a fiber reinforced composite material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150134867A KR101970498B1 (en) | 2015-09-23 | 2015-09-23 | Fiber-reinforced composite material and method of manufacturing the same |
| PCT/KR2016/010545 WO2017052201A1 (en) | 2015-09-23 | 2016-09-21 | Fiber-reinforced composite and preparation method therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150134867A KR101970498B1 (en) | 2015-09-23 | 2015-09-23 | Fiber-reinforced composite material and method of manufacturing the same |
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| KR20170036193A true KR20170036193A (en) | 2017-04-03 |
| KR101970498B1 KR101970498B1 (en) | 2019-04-22 |
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| KR1020150134867A KR101970498B1 (en) | 2015-09-23 | 2015-09-23 | Fiber-reinforced composite material and method of manufacturing the same |
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| WO (1) | WO2017052201A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061077A (en) * | 2006-12-28 | 2008-07-02 | 호남석유화학 주식회사 | Fiber-reinforced polypropylene resin composition |
| KR20110076341A (en) * | 2009-12-29 | 2011-07-06 | 현대이피 주식회사 | A polyolefin resin composition |
| KR20130011774A (en) * | 2011-07-22 | 2013-01-30 | (주)삼박 | Resin composition for fiber reinforced composite materials and prepreg therefrom |
| KR20130119323A (en) * | 2010-06-08 | 2013-10-31 | 유니온 카바이드 케미칼즈 앤드 플라스틱스 테크날러지 엘엘씨 | Fiber-reinforced, thermoplastic tape as a strength member for wire and cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950007662B1 (en) * | 1991-12-24 | 1995-07-14 | 주식회사럭키 | Polyolefin resin composition(i) having excellent coating |
| KR960021434A (en) * | 1994-12-22 | 1996-07-18 | 유현식 | Long fiber reinforced thermoplastic resin composition and method for producing same |
| JP3873708B2 (en) * | 2001-10-26 | 2007-01-24 | 住友化学株式会社 | Thermoplastic resin composition and injection-molded body thereof |
| JP2005041953A (en) * | 2003-07-25 | 2005-02-17 | Chisso Corp | Fiber-containing olefin resin composition and method for producing molding using the same |
| KR101170492B1 (en) * | 2011-01-20 | 2012-08-01 | 주식회사 엘지화학 | Olefin block copolymer |
-
2015
- 2015-09-23 KR KR1020150134867A patent/KR101970498B1/en active IP Right Grant
-
2016
- 2016-09-21 WO PCT/KR2016/010545 patent/WO2017052201A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080061077A (en) * | 2006-12-28 | 2008-07-02 | 호남석유화학 주식회사 | Fiber-reinforced polypropylene resin composition |
| KR20110076341A (en) * | 2009-12-29 | 2011-07-06 | 현대이피 주식회사 | A polyolefin resin composition |
| KR20130119323A (en) * | 2010-06-08 | 2013-10-31 | 유니온 카바이드 케미칼즈 앤드 플라스틱스 테크날러지 엘엘씨 | Fiber-reinforced, thermoplastic tape as a strength member for wire and cable |
| KR20130011774A (en) * | 2011-07-22 | 2013-01-30 | (주)삼박 | Resin composition for fiber reinforced composite materials and prepreg therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101970498B1 (en) | 2019-04-22 |
| WO2017052201A1 (en) | 2017-03-30 |
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