KR100448124B1 - Thermoplastic resin composition comprising aromatic polycarbonate, aromatic polyester, abs resin modified with alpha-methylstyrene and methacrylate, polypropylene-based resin, butadiene-based graft copolymer and additive - Google Patents

Thermoplastic resin composition comprising aromatic polycarbonate, aromatic polyester, abs resin modified with alpha-methylstyrene and methacrylate, polypropylene-based resin, butadiene-based graft copolymer and additive Download PDF

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KR100448124B1
KR100448124B1 KR1019960074844A KR19960074844A KR100448124B1 KR 100448124 B1 KR100448124 B1 KR 100448124B1 KR 1019960074844 A KR1019960074844 A KR 1019960074844A KR 19960074844 A KR19960074844 A KR 19960074844A KR 100448124 B1 KR100448124 B1 KR 100448124B1
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resin composition
weight
thermoplastic resin
butadiene
resin
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KR19980055610A (en
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박봉현
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현대자동차주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

PURPOSE: Provided is a thermoplastic resin composition which is excellent in weather resistance, is improved in impact resistance and is applicable to the door frame for vehicles. CONSTITUTION: The thermoplastic resin composition comprises 15-50 wt% of an aromatic polycarbonate; 35-70 wt% of an aromatic polyester; 5-30 wt% of an α -methylstyrene-styrene-methacrylate-acrylonitrile-butadiene copolymer (a modified ABS resin); 3-12 wt% of a polypropylene-based resin; 5-20 wt% of a butadiene-based graft copolymer; and 2-3 wt% of an additive. Preferably the polypropylene-based resin is a propylene homopolymer or an ethylene-propylene copolymer rubber whose ethylene content is 5-40 wt%; and the content of an α-methylstyrene-based copolymer is 30-70 wt% in the modified ABS resin.

Description

내후성이 우수한 열가소성 수지 조성물Thermoplastic resin composition excellent in weatherability

본 발명은 내후성이 우수한 열가소성 수지 조성물에 관한 것으로서, 더욱 상세하게는 방향족 폴리카보네이트 수지, 방향족 폴리에스테르 수지, 폴리프로필렌계 수지, 부타디엔 그라프트 공중합체 및 첨가제로 이루어진 수지 조성물로서 차량의 도어 프레임에 적용할 수 있도록 내후성 및 내충격성이 우수하도록 개선한 열가소성 수지 조성물에 관한 것이다.The present invention relates to a thermoplastic resin composition having excellent weather resistance, and more particularly, to a door frame of a vehicle as a resin composition composed of an aromatic polycarbonate resin, an aromatic polyester resin, a polypropylene resin, a butadiene graft copolymer, and an additive. The present invention relates to a thermoplastic resin composition improved so as to have excellent weather resistance and impact resistance.

미국특허 제 3,864,428 호 및 일본특허공고 소 55-9435 호에 나타낸 바와 같이 종래 도어 프레임에 적용해 오던 재료로는 폴리카보네이트와 폴리부틸렌 테레프탈레이트(PBT)로 이루어진 열가소성 수지 조성물(일본 테이진사)이 개시되어 있다. 상기 조성물은 강성이 우수한 반면에 내크리프(Creep)성 및 스킨매치성(Skin match)이 부족하고 내후성이 떨어져 필드에서 변색이 발생하며 성형한 후에는 제조된 부품의 표면은 광택이 우수하나 외관 상품성이 떨어져 도장을 반드시 해야만 하는 문제가 있다. 따라서 폐재료의 리사이클 시스템을 선호하고 있는 현 추세 및 작업공정의 단축이라는 측면에서 볼 때는 불리하여 오늘날에는 적절하지 못한 실정이다.As shown in U.S. Patent No. 3,864,428 and Japanese Patent Publication No. 55-9435, a thermoplastic resin composition made of polycarbonate and polybutylene terephthalate (PBT) has been applied to conventional door frames. Is disclosed. The composition has excellent stiffness, but lacks creep resistance and skin match and lacks weather resistance, causing discoloration in the field. After molding, the surface of the manufactured part has excellent gloss but appearance. There is a problem that must be painted apart from this. Therefore, it is disadvantageous in view of the current trend and the shortening of the work process that prefers the recycling system of waste materials, which is not suitable today.

한편 현 차종의 도어 프레임에 적용하고 있는 재료로는 주로 아연다이캐스팅(Zn die casting)과 알루미나 다이캐스팅(Al die-casting)등이 있으나 백색부식이 심하고 중량이 무거우며, 제조시 불량율이 높아 가격이 높은 문제가 있고 장착시 스킨매치(skin match)가 어려운 문제가 있다.On the other hand, the materials applied to the door frames of current models include zinc die casting and alumina die casting, but they are highly corrosive and heavy in white, and have high defect rates in manufacturing. There is a problem and it is difficult to match the skin when mounting.

본 발명은 상기의 종래 폴리카보네이트 및 폴리부틸렌 테레프탈레이트로 이루어진 수지 조성물의 문제점을 해결하고자 방향족 폴리카보네이트, 방향족 폴리에스테르, 변성ABS, 폴리프로필렌계 수지, 부타디엔계 그라프트 공중합체 및 첨가물로 이루어진 열가소성 수지조성물을 제조함으로써 자동차의 도어 프레임에 적용할 수 있는 내충격성 및 내후성이 동시에 우수한 열가소성 수지 조성물을 제공하는 데 그 목적이 있다.The present invention is to solve the problems of the resin composition consisting of the conventional polycarbonate and polybutylene terephthalate, aromatic polycarbonate, aromatic polyester, modified ABS, polypropylene-based resin, butadiene-based graft copolymer and thermoplastics made of additives An object of the present invention is to provide a thermoplastic resin composition having excellent impact resistance and weather resistance that can be applied to a door frame of a vehicle by manufacturing a resin composition.

본 발명은 열가소성 수지 조성물에 있어서, 방향족 폴리카보네이트 15∼50 중량%, 방향족 폴리에스테르 35∼70 중량%, ABS(α-메틸스틸렌-스틸렌-메타크릴레이트-아크릴로니트릴-부타디엔 공중합체) 5∼30 중량%, 폴리프로필렌계 수지 3∼12 중량%, 부타디엔 그라프트 공중합체 5∼20 중량% 및 첨가제 2∼3 중량%로 이루어진 것을 그 특징으로 한다.The present invention is a thermoplastic resin composition, 15 to 50% by weight of aromatic polycarbonate, 35 to 70% by weight of aromatic polyester, 5 to ABS (α-methylstyrene-styrene-methacrylate-acrylonitrile-butadiene copolymer) It is characterized by consisting of 30% by weight, 3 to 12% by weight polypropylene resin, 5 to 20% by weight butadiene graft copolymer and 2 to 3% by weight additives.

이와같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.

본 발명은 차량의 도어 프레임에 적용할 수 있는 열가소성 수지 조성물에 관한 것이다.The present invention relates to a thermoplastic resin composition that can be applied to a door frame of a vehicle.

본 발명에 따른 열가소성 수지 조성물에 있어서, 방향족 폴리카보네이트 수지는 비스페놀-A와 포스겐으로부터 축중합되거나 비스페놀-A와 디페닐 카보네이트와의 에스테르 교환반응에 의해 생성되며 수평균 분자량은 1000∼300,000을 가지며, 바람직하게는 30,000∼120,000 수평균 분자량을 가지며, 말단에 카르복실기 또는 하이드록실기를 갖는 수지이다. 그리고 방향족 폴리카보네이트 수지는 전체 조성물에 대하여 15 ∼ 50 중량%를 사용하는 것이 바람직하며 더욱 바람직하다.In the thermoplastic resin composition according to the present invention, the aromatic polycarbonate resin is polycondensed from bisphenol-A and phosgene or is produced by a transesterification reaction of bisphenol-A with diphenyl carbonate and has a number average molecular weight of 1000 to 300,000, Preferably it is resin which has a 30,000-120,000 number average molecular weight, and has a carboxyl group or a hydroxyl group at the terminal. And it is preferable to use 15-50 weight% of aromatic polycarbonate resin with respect to the whole composition, and it is more preferable.

만일 그 성분의 함량이 50 중량%를 초과하면 성형성과 경도가 떨어지고, 내약품성이 나쁘게 되며 15 중량% 미만이면 외관이 불량해지는 문제가 있다.If the content of the component exceeds 50% by weight, the moldability and hardness is lowered, the chemical resistance is bad, if less than 15% by weight there is a problem that the appearance is poor.

또한 폴리에스테르 수지는 테레프탈산 또는 테레프탈산메틸에스테르와 2∼10개의 탄소원자를 갖는 디올성분으로부터 용융중합 또는 용융중합과 괴상중합의 혼합방법에 의해 축중합된 것이다. 상기의 중합에 의해 제조된 폴리에스테르 수지로서 바람직하기로는 폴리에틸렌테레프탈레이트, 폴라부틸렌테레프탈레이트, 폴리헥사 메틸렌 테레프탈레이트 등이 있으며 특히 바람직하기로는 폴리부틸렌 테레프탈레이트가 좋다. 폴리에스테르 수지는 고유점도가 1.0의 값을 가지는 것을 사용하며 그 이유는 반응시간 단축 및 수율을 향상시키기 때문이다. 폴리에스테르 수지는 전체 수지 조성물 중에 35 ∼ 70 중량%가 바람직하며 만일 그 성분의 함량이 70 중량%를 초과하면 중량과다 및 성형성이 떨어지고 35 중량% 미만이면 강성이 저하되는 문제가 있다.In addition, the polyester resin is polycondensed from a terephthalic acid or a terephthalic acid methyl ester and a diol component having 2 to 10 carbon atoms by melt polymerization or a mixing method of melt polymerization and bulk polymerization. The polyester resin produced by the polymerization is preferably polyethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate and the like, and polybutylene terephthalate is particularly preferred. The polyester resin uses an intrinsic viscosity having a value of 1.0 because the reaction time is shortened and the yield is improved. The polyester resin is preferably 35 to 70% by weight in the total resin composition, and if the content of the component exceeds 70% by weight, there is a problem of excessive weight and moldability, and less than 35% by weight of rigidity.

그리고 변성ABS 수지는 α-메틸스틸렌 및 메타크릴레이트 단량체를 ABS 수지에 공중합시켜 제조한 것으로서 각각 변성 ABS 수지 조성물에 대하여 α-메틸스틸렌은 30∼70 중량%, 메타크릴레이트 20∼50 중량%가 함유되도록 하였으며 유화중합 또는 현탁중합 방법으로 공중합을 통하여 생성하였다. 만일, 변성ABS 수지가 전체 조성물에 대하여 그 함량이 30 중량%를 초과하면 내열성과 저온충격성이 떨어지고, 5 중량% 미만이면 성형성과 내후성이 떨어지는 문제가 있다.The modified ABS resin is prepared by copolymerizing α-methylstyrene and methacrylate monomers to ABS resin, and the α-methylstyrene is 30 to 70% by weight and 20 to 50% by weight of methacrylate to the modified ABS resin composition. It was contained and was produced through copolymerization by emulsion polymerization or suspension polymerization. If the modified ABS resin is more than 30% by weight of the total composition, the heat resistance and low temperature impact resistance are lowered, and if the modified ABS resin is less than 5% by weight, moldability and weatherability are poor.

상기의 폴리프로필렌계 수지로 사용되는 것은 에틸렌프로필렌 고무로서 에틸렌프로필렌고무는 무늬점도(Monney viscosity)가 20R∼70R이고, 에틸렌과 프로필렌 조성이 중요하며 에틸렌부분의 함량이 많고 적음에 따라 도장성과 내충격성의 함수가 되며 이때, 상기 폴리프로필렌계 수지는 프로필렌 단독중합체 또는 에틸렌 함량이 5∼40 %인 공중합체인 것이 바람직하다. 예틸렌 프로필렌 고무성분의 경우 만일 그 함량이 전체 조성물에 대하여 12 중량%를 초과하면 내열성과 표면경도가 떨어지고, 3 중량% 미만이면 내충격성과 내후성이 저하되는 문제가 있다.The polypropylene-based resin is used as ethylene propylene rubber, and ethylene propylene rubber has a viscosity of 20R to 70R, and ethylene and propylene composition are important. In this case, the polypropylene resin is preferably a propylene homopolymer or a copolymer having an ethylene content of 5 to 40%. In the case of the yylene propylene rubber component, if the content exceeds 12% by weight based on the total composition, the heat resistance and the surface hardness are lowered, and if the content is less than 3% by weight, the impact resistance and the weather resistance are deteriorated.

부타디엔계 그라프트 공중합체는 폴리스티렌, 스티렌-아크릴로니트릴 또는 아크닐로-니트릴부타디엔 스티렌 수지 중에서 1종 이상을 사용하며, 괴상중합의 중합방법에 의해 제조된다.The butadiene-based graft copolymer uses at least one of polystyrene, styrene-acrylonitrile or acrylonitrile-butadiene styrene resin, and is produced by a polymerization method of bulk polymerization.

만일 부타디엔계 공중합체의 함량이 전체 조성물 함량에 대하여 20 중량%를 초과하면 내열성이 떨어지고 성형시 부품 파팅 라인(PARTING LINE)에 부푸러기가 생성되어 품질저하가 예상되며, 5 중량% 미만이면 저온에서 내충격성이 저하되는 문제가 있다.If the content of the butadiene-based copolymer exceeds 20% by weight of the total composition content, the heat resistance is inferior, and swelling is formed in the part parting line during molding. There is a problem that the impact property is lowered.

그밖에 본 발명의 수지 조성물은 사용목적에 따라 조성물에 필요로 하는 특성을 부여하기 위하여 공지의 첨가제를 더 첨가할 수 있는 바, 그 예로는 산화방지제, 자외선안정제, 대전방지제, 안료분산제 등을 사용하게 되며 전체 수지 조성물의 함량에 대하여 2∼3 중량%를 사용하는 것이 바람직하다.In addition, the resin composition of the present invention may further add a known additive in order to impart the necessary properties to the composition according to the purpose of use, for example, to use an antioxidant, UV stabilizer, antistatic agent, pigment dispersant, etc. It is preferable to use 2 to 3% by weight based on the content of the entire resin composition.

이하 본 발명을 실시예를 통하여 더욱 구체화 하겠는 바, 본 실시예가 본 발명의 범위를 한정하는 것은 아니다.EXAMPLES Hereinafter, the present invention will be further embodied by way of Examples, which should not be construed as limiting the scope of the present invention.

실시예 1∼3 및 비교예 1∼3Examples 1-3 and Comparative Examples 1-3

다음 표 1에 나타낸 바와 같은 조성 및 함량으로 열가소성 수지 조성물을 제조하여 트윈압축기를 이용하여 시편을 제조하였다. 그리고, 제조된 시편에 대하여 표 2의 시험항목을 측정하여 나타내었다.Next, a thermoplastic resin composition was prepared in the composition and content as shown in Table 1, and a specimen was prepared using a twin compressor. In addition, the test items of Table 2 were measured and shown for the manufactured specimens.

단위 : 중량%Unit: weight% 구 분(중량%)Classification (% by weight) 실 시 예Example 비 교 예Comparative Example 1One 22 33 1One 22 33 방향족 폴리카보네이트Aromatic polycarbonate 2828 2323 3131 4040 -- 7070 방향족 폴리에스테르(1) Aromatic Polyester (1) 3535 4040 3535 4545 1818 2323 변성 ABSModified ABS 1515 1515 1717 -- 4040 5.05.0 에틸렌 프로필렌 고무(EPR)Ethylene Propylene Rubber (EPR) 55 1010 33 -- 4040 -- 부타디엔계 그라프트 공중합체Butadiene Graft Copolymer 1515 1010 1212 1313 -- -- 첨가제(2) Additives (2) 2.02.0 2.02.0 2.02.0 2.02.0 2.02.0 2.02.0 (주)(1). 폴리부틸렌 테레프탈레이트 LG화학사 제품(2). 산화방지제 : [트리스(2,4-디-테트라-부틸페닐포스파이프)]내후성안정제 : 카본블랙 또는 폴리-{[6-1(1,1,3,3-테트라-메틸부틸)-아미노-1,3,5-트리아진-2,4-디일][2-(2,2,6,6-테트라메틸피페리딘)-아미노]-헥사메틸렌-[4-(2,2,6,6)-테트라메틸피페리인-아미노]}대전방지제 : 알킬계 아민안료분산제 : 유기티탄계 화합물(1). Polybutylene terephthalate LG Chemical (2). Antioxidant: [Tris (2,4-di-tetra-butylphenylphosphpipe)] Weatherability stabilizer: Carbon black or poly-{[6-1 (1,1,3,3-tetra-methylbutyl) -amino- 1,3,5-triazine-2,4-diyl] [2- (2,2,6,6-tetramethylpiperidine) -amino] -hexamethylene- [4- (2,2,6, 6) -tetramethylpiperiin-amino]} Antistatic agent: Alkyl amine pigment dispersant: Organic titanium compound

실험예Experimental Example

상기 실시예 1∼3 및 비교예 1∼3에서 제조한 열가소성 수지조성물을 펠렛으로 만들어 물성측정 및 외관평가를 하였으며, 그 결과는 다음 표 3에 나타내었다.The thermoplastic resin compositions prepared in Examples 1 to 3 and Comparative Examples 1 to 3 were made into pellets, and physical properties were measured and appearance was evaluated. The results are shown in Table 3 below.

아이조드 충격강도는 ASTM D-256 방법으로, 내열성은 ASTM D-648 방법으로, 굴곡탄성율은 ASTM D-790방법으로, 밀도는 ASTM D-792방법으로, 록웰(ROCK WELL) 경도는 ASTM D-785방법으로 각각 측정을 수행하였다. 또한 내후성(Weather-O-meter)을 알아보기 위해 미국 아틀라스사 제품인 촉진 내후성 시험기(ATLAS사 Ci 65XWA)를 이용하여 카본(Carbon) 아크(Arc) 63±3 ℃ 챔버(Chamber)에서 48분 동안 폭로후, 12 분간 물을 분사하는 것을 1 사이클로 하는 조건에서 1200시간 동안 경과시킨 후, 변색, 표면크랙 및 열변형 상태를 육안으로 관찰하였다.Izod impact strength is ASTM D-256 method, heat resistance is ASTM D-648 method, flexural modulus is ASTM D-790 method, density is ASTM D-792 method, ROCK WELL hardness is ASTM D-785 Each measurement was performed by the method. In addition, a 48-minute exposure in a carbon arc 63 ± 3 ° C chamber was carried out using an accelerated weather resistance tester (ATLAS Ci 65XWA), manufactured by Atlas, USA, to determine weather-O-meter. Thereafter, after discharging water for 12 minutes for 1,200 hours under conditions of 1 cycle, discoloration, surface cracks, and thermal deformation were visually observed.

시 험 항 목Test Items 실 시 예Example 비 교 예Comparative Example 1One 22 33 1One 22 33 아이조드 충격강도(kg·㎝/㎝)Izod impact strength (kgcm / cm) 상온Room temperature 6565 6767 6666 5050 5454 3535 내열성(H.D.T)18.5kgf/㎠,℃Heat resistance (H.D.T) 18.5kgf / ㎠, ℃ -30 ℃-30 ℃ 1313 1515 1313 1818 1515 77 굴곡탄성율(kgf/㎠)Flexural modulus (kgf / ㎠) 19,50019,500 20,00020,000 19,70019,700 19,60019,600 15,70015,700 17,00017,000 밀 도(g/㎤)Density (g / cm 3) 1.181.18 1.191.19 1.181.18 1.211.21 1.151.15 1.151.15 록웰 경도(R scale)Rockwell Hardness (R scale) 107107 105105 105105 108108 8383 101101 내후성Weather resistance 웨더-오-미터(weather-o-meter)(1200 시간)Weather-o-meter (1200 hours) ●● ●● ●● ▲▲ ●● ▲▲ 옥외촉진폭로(6 개월)Outdoor promotion exposure (6 months) ●● ●● ●● ▲▲ -- -- 외 관(Skin)Skin ○○ ○○ ○○ △△ △△ ○○ (주) ● : 이상없음, ▲ : 약간변색, ○ : 우수, △ : 보통(Note) ●: No abnormality, ▲: Slight discoloration, ○: Excellent, △: Normal

상기의 결과를 통하여 알 수 있듯이 본 발명의 열가소성 수지 조성물은 비교예에 비하여 내충격성이 더욱 향상되어진 것을 알 수 있으며 특히,내후성 테스터에서는 실시예에서 제조된 수지 조성물이 모두 이상이 없는 것으로 나타나 도장을 하지 않고도 외관을 잘 유지할 수 있음을 알 수 있었으며 이에 따라 원가절감, 경량화, 및 재생화에 유용하게 사용할 수 있는 열가소성 수지 조성물임을 알 수 있었다.As can be seen from the above results, it can be seen that the thermoplastic resin composition of the present invention has more improved impact resistance than the comparative example. In particular, in the weather resistance tester, all of the resin compositions prepared in Examples were found to have no abnormality. It can be seen that the appearance can be well maintained without the thermoplastic resin composition that can be usefully used for cost reduction, weight reduction, and regeneration.

Claims (3)

열가소성 수지 조성물에 있어서, 방향족 폴리카보네이트 15∼50 중량%, 방향족 폴리에스테르 35∼70 중량%, ABS(α-메틸스틸렌-스틸렌-메타크릴레이트-아크릴로니트릴-부타디엔 공중합체) 5∼30 중량%, 폴리프로필렌계 수지 3∼12 중량%, 부타디엔 그라프트 공중합체 5∼20 중량% 및 첨가제 2∼3 중량%로 이루어진 것을 그 특징으로 하는 내후성이 우수한 열가소성 수지 조성물In the thermoplastic resin composition, 15 to 50% by weight of aromatic polycarbonate, 35 to 70% by weight of aromatic polyester, 5 to 30% by weight of ABS (α-methylstyrene-styrene-methacrylate-acrylonitrile-butadiene copolymer) , 3 to 12% by weight of polypropylene resin, 5 to 20% by weight of butadiene graft copolymer and 2 to 3% by weight of additives, thermoplastic resin composition having excellent weather resistance 제 1 항에 있어서, 상기 폴리프로필렌계 수지는 프로필렌 단독 중합체 또는 에틸렌 함량이 5 ∼ 40 중량%인 에틸렌-프로필렌 공중합체인 것을 특징으로 하는 내후성이 우수한 열가소성 수지 조성물.The thermoplastic resin composition of claim 1, wherein the polypropylene resin is a propylene homopolymer or an ethylene-propylene copolymer having an ethylene content of 5 to 40 wt%. 제 1 항에 있어서, 상기 변성ABS 수지는 α-메틸 스틸렌계 공중합체의 함량이 30∼70 중량%인 것을 특징으로 하는 내후성이 우수한 열가소성 수지 조성물.According to claim 1, wherein the modified ABS resin is a thermoplastic resin composition having excellent weather resistance, characterized in that the content of α-methyl styrene-based copolymer is 30 to 70% by weight.
KR1019960074844A 1996-12-28 1996-12-28 Thermoplastic resin composition comprising aromatic polycarbonate, aromatic polyester, abs resin modified with alpha-methylstyrene and methacrylate, polypropylene-based resin, butadiene-based graft copolymer and additive KR100448124B1 (en)

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KR930701542A (en) * 1990-08-21 1993-06-12 리챠드 지.워터맨 Thermoplastic molding compositions having improved solvent resistance and impact resistance and uses thereof
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