BR9814522A - Composições antiestáticas à base de poliamida - Google Patents
Composições antiestáticas à base de poliamidaInfo
- Publication number
- BR9814522A BR9814522A BR9814522-3A BR9814522A BR9814522A BR 9814522 A BR9814522 A BR 9814522A BR 9814522 A BR9814522 A BR 9814522A BR 9814522 A BR9814522 A BR 9814522A
- Authority
- BR
- Brazil
- Prior art keywords
- polyamide
- carbon black
- antistatic
- antistatic compositions
- astm
- Prior art date
Links
- 239000004952 Polyamide Substances 0.000 title abstract 4
- 229920002647 polyamide Polymers 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 title abstract 3
- 239000006229 carbon black Substances 0.000 abstract 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/017—Antistatic agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
"COMPOSIçõES ANTIESTáTICAS à BASE DE POLIAMIDA". Essa composição de poliamida antiestática, compreendendo pelo menos uma poliamida e uma quantidade suficiente de negro-de -fumo para torná-lo antiestático, é caracterizada pelo fato de o negro-de-fumo ser pelo menos um negro-de-fumo escolhido dentre aqueles que têm uma superfície específica BET, medida segundo a norma ASTM D 3037-89, de 5 a 200 m^ 2^/g e uma absorção DBP, medida segundo a norma ASTM D 2414-90, de 50 a 300 ml/100 g.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9716406A FR2772776B1 (fr) | 1997-12-23 | 1997-12-23 | Compositions antistatiques a base de polyamide |
PCT/FR1998/002703 WO1999033908A1 (fr) | 1997-12-23 | 1998-12-11 | Compositions antistatiques a base de polyamide |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9814522A true BR9814522A (pt) | 2005-07-12 |
Family
ID=9515043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9814522-3A BR9814522A (pt) | 1997-12-23 | 1998-12-11 | Composições antiestáticas à base de poliamida |
Country Status (13)
Country | Link |
---|---|
US (1) | US6506830B1 (pt) |
EP (1) | EP1042394B2 (pt) |
JP (2) | JP4897139B2 (pt) |
KR (1) | KR100595951B1 (pt) |
CN (1) | CN1326922C (pt) |
AT (1) | ATE301686T1 (pt) |
AU (1) | AU1567899A (pt) |
BR (1) | BR9814522A (pt) |
CA (1) | CA2342711C (pt) |
DE (1) | DE69831177T3 (pt) |
ES (1) | ES2247731T5 (pt) |
FR (1) | FR2772776B1 (pt) |
WO (1) | WO1999033908A1 (pt) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19819565A1 (de) | 1998-04-30 | 1999-11-11 | Inventa Ag | Antistatische und peroxidstabile Formmassen |
DE19854819A1 (de) * | 1998-11-27 | 2000-05-31 | Degussa | Hohler Artikel mit antistatischen Eigenschaften |
DE10030716A1 (de) * | 2000-06-23 | 2002-01-03 | Degussa | Tieftemperaturschlagzähe Polymerlegierung |
KR100412814B1 (ko) * | 2000-12-29 | 2003-12-31 | 현대자동차주식회사 | 도전성 폴리아미드 수지조성물 및 이로부터 제조된 자동차부품용 성형품 |
DE60319903T2 (de) | 2002-03-04 | 2009-04-16 | Arkema France, S.A. | Zusammensetzung auf Polyamidbasis für flexible Rohre zum Transport von Öl und Gas |
US8999200B2 (en) * | 2002-07-23 | 2015-04-07 | Sabic Global Technologies B.V. | Conductive thermoplastic composites and methods of making |
US8501858B2 (en) * | 2002-09-12 | 2013-08-06 | Board Of Trustees Of Michigan State University | Expanded graphite and products produced therefrom |
FR2847902B1 (fr) * | 2002-11-29 | 2007-02-16 | Rhodia Eng Plastics Srl | Composition a base de matrice thermoplastique |
FR2858624B1 (fr) * | 2003-08-08 | 2005-09-09 | Rhodia Engineering Plastics Sa | Composition electrostatique a base de matrice polyamide |
DE10361712A1 (de) * | 2003-12-30 | 2005-07-28 | Ems-Chemie Ag | Thermoplastische Polyamid-Formmassen |
DE10361711A1 (de) * | 2003-12-30 | 2005-07-28 | Ems-Chemie Ag | Thermoplastische Polyamid-Formmassen mit reduzierter Bildung von Feststoffablagerungen und/oder von Belägen |
DE102004022963A1 (de) * | 2004-05-10 | 2005-12-08 | Ems-Chemie Ag | Thermoplastische Polyamid-Formmassen |
DE102004029011A1 (de) * | 2004-06-16 | 2006-01-12 | Ems-Chemie Ag | Polymermischung aus aliphatischen Polyamiden und teilaromatischen Polyamiden und deren Verwendung |
JP2006070154A (ja) * | 2004-09-02 | 2006-03-16 | Ube Ind Ltd | 制振性に優れたポリアミド樹脂組成物 |
WO2006035619A1 (ja) * | 2004-09-29 | 2006-04-06 | Toyo Boseki Kabushiki Kaisha | ポリアミド系導電性樹脂組成物、その製造方法、及びそれからなる燃料タンク用キャップ |
FR2876109B1 (fr) | 2004-10-05 | 2006-11-24 | Arkema Sa | Polyamides semi-cristallins souples |
DE102004054390A1 (de) * | 2004-11-11 | 2006-05-18 | Rehau Ag + Co | Kupplungsleitung |
US8394471B2 (en) * | 2004-12-14 | 2013-03-12 | Parker-Hannifin Corporation | Electrically-conductive hose |
PL1717022T3 (pl) | 2005-04-29 | 2014-07-31 | Arkema France | Wielowarstwowa rura na bazie poliamidu do przesyłania płynów |
DE102006013054A1 (de) * | 2006-03-22 | 2007-09-27 | Rehau Ag + Co. | Zusammensetzung |
US20070244244A1 (en) * | 2006-04-13 | 2007-10-18 | Franck Bertoux | Low oligomer conductive polyamide |
US20080139065A1 (en) * | 2006-12-11 | 2008-06-12 | Jayantha Amarasekera | Intrinsically conductive thermoplastic composition and compounding processing for making conductive fiber |
EP1982829A1 (fr) * | 2007-04-20 | 2008-10-22 | Aisapack Holding SA | Récipient pour vin ou boisson similaire |
JP2009242448A (ja) * | 2008-03-28 | 2009-10-22 | Ube Ind Ltd | 燃料用ポリアミド樹脂組成物並びにそれからなる成形物及び自動車用部品 |
JP5474814B2 (ja) * | 2008-11-14 | 2014-04-16 | 三菱マテリアル株式会社 | 導電性シリカゾル組成物及びそれを用いた成形品 |
FR2941700B1 (fr) * | 2009-02-02 | 2012-03-16 | Arkema France | Procede de synthese d'un alliage de copolymere a blocs presentant des proprietes antistatiques ameliorees. |
US20110139258A1 (en) * | 2009-12-16 | 2011-06-16 | E.I. Du Pont De Nemours And Company | Multilayer structures comprising a barrier layer and their use to convey fluids |
JP2011226940A (ja) * | 2010-04-21 | 2011-11-10 | Ube Ind Ltd | チューブの衝撃特性評価方法、チューブの製造方法および衝撃特性に優れたチューブ |
DE102010030212A1 (de) * | 2010-06-17 | 2011-12-22 | Robert Bosch Gmbh | Stabilisatorzusammensetzung für Polyamide |
KR101333579B1 (ko) * | 2010-12-15 | 2013-11-28 | 제일모직주식회사 | 반사성, 내열성 및 내습성이 우수한 폴리아마이드 수지 조성물. |
US9150691B2 (en) * | 2011-07-08 | 2015-10-06 | Rhodia Operations | Polyamide, process for preparing same and uses thereof |
US8865807B2 (en) | 2011-12-29 | 2014-10-21 | Cheil Industries Inc. | Polyamide resin composition having improved physical properties including thin-wall moldability |
EP2831065B1 (en) * | 2012-03-30 | 2018-08-08 | 3M Innovative Properties Company | Compositions containing tetrahydrofurfuryl and/or alkyl-substituted tetrahydrofurfuryl esters of citric acid |
CN102690513B (zh) * | 2012-05-25 | 2014-05-07 | 东莞市德诚塑化科技有限公司 | 一种塑料用永久抗静电组合物及其制备方法 |
KR20140027014A (ko) * | 2012-08-23 | 2014-03-06 | 주식회사 엘지화학 | 가소제 조성물 |
KR101566063B1 (ko) | 2012-12-31 | 2015-11-04 | 제일모직주식회사 | 표면광택도, 반사성, 내황변성 및 성형성이 우수한 열가소성 수지 조성물 |
CN103289384A (zh) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | 阻燃抗静电pa6复合材料 |
US10301449B2 (en) | 2013-11-29 | 2019-05-28 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition having excellent light stability at high temperature |
KR101690829B1 (ko) | 2013-12-30 | 2016-12-28 | 롯데첨단소재(주) | 내충격성 및 내광성이 우수한 열가소성 수지 조성물 |
EP2960053A1 (en) | 2014-06-24 | 2015-12-30 | Inergy Automotive Systems Research (Société Anonyme) | Plastic liner for a composite pressure vessel |
US10636951B2 (en) | 2014-06-27 | 2020-04-28 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition having excellent reflectivity |
US9840610B2 (en) | 2014-09-30 | 2017-12-12 | Lotte Advanced Materials Co., Ltd. | Thermoplastic resin composition and molded article using the same |
KR101793319B1 (ko) | 2014-12-17 | 2017-11-03 | 롯데첨단소재(주) | 폴리에스테르 수지 조성물 및 이로부터 제조된 성형품 |
KR101849830B1 (ko) | 2015-06-30 | 2018-04-18 | 롯데첨단소재(주) | 내충격성 및 광신뢰성이 우수한 폴리에스테르 수지 조성물 및 이를 이용한 성형품 |
KR101617614B1 (ko) * | 2015-10-19 | 2016-05-03 | 유영화학(주) | 나노 실리카를 함유하는 pvc 수지 조성물 및 이를 이용한 상하수도관, 오수받이 등의 이음관 |
CN107760022B (zh) * | 2017-11-22 | 2020-07-07 | 南京立汉化学有限公司 | 一种增塑型增韧尼龙6材料及其制备方法 |
JP7098004B2 (ja) * | 2018-06-29 | 2022-07-08 | エボニック スペシャルティ ケミカルズ (シャンハイ) カンパニー リミテッド | レーザーマーキングと染料拡散熱転写印刷による印刷との双方に適したポリマーベースの複合材料 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2017410A1 (de) * | 1970-04-11 | 1971-10-28 | Conradty Fa C | Kunststoff zur Herstellung von Rohren, Platten, Scheiben und anderen Formkörpern durch Extrusion und Spritzgießen |
CS187003B1 (en) | 1976-04-30 | 1979-01-31 | Rudolf Puffr | Process for preparing polyamides |
JPS54146849A (en) * | 1978-05-10 | 1979-11-16 | Unitika Ltd | Conductive polyamide resin composition |
FR2460198A1 (fr) * | 1979-06-29 | 1981-01-23 | Oreal | Moyen de peignage anti-statique |
JPS61101554A (ja) * | 1984-10-24 | 1986-05-20 | Furukawa Electric Co Ltd:The | 導電性樹脂組成物の調製方法 |
US5179155A (en) * | 1990-01-30 | 1993-01-12 | Nippon Polypenco Limited | Antistatic molded article of monomer-cast nylon |
US5084504A (en) * | 1990-01-30 | 1992-01-28 | Nippon Polypenco Limited | Process for producing an antistatic molded article of monomer-cast nylon |
DE4025301C2 (de) † | 1990-08-09 | 1998-04-30 | Inventa Ag | Antistatische Kraftstoffleitung |
GB9109856D0 (en) | 1991-05-04 | 1991-06-26 | Cabot Plastics Ltd | Conductive polymer compositions |
NO304696B1 (no) * | 1991-05-04 | 1999-02-01 | Cabot Plastics Ltd | Elektrisk ledende polymermateriale, tilvirket gjenstand og blekk paa basis av dette |
US5469892A (en) | 1992-04-14 | 1995-11-28 | Itt Automotive, Inc. | Corrugated polymeric tubing having at least three layers with at least two respective layers composed of polymeric materials dissimilar to one another |
US5460771A (en) * | 1992-10-16 | 1995-10-24 | Itt Corporation | Process for producing corrugated multi-layer tubing having layers of differing plastic characteristics |
US5352289A (en) | 1992-12-18 | 1994-10-04 | Cabot Corporation | Low ash carbon blacks |
JPH07295332A (ja) * | 1994-04-25 | 1995-11-10 | Canon Inc | 帯電部材及びこれを有する電子写真装置 |
DE19507025A1 (de) † | 1995-03-01 | 1996-09-05 | Huels Chemische Werke Ag | Mehrschichtrohr mit elektrisch leitfähiger Innenschicht |
FR2742445B1 (fr) * | 1995-12-19 | 1998-01-16 | Atochem Elf Sa | Compositions antistatiques et adherentes a base de polyamide |
JPH09254230A (ja) * | 1996-01-19 | 1997-09-30 | Nippon Paint Co Ltd | 感光性樹脂組成物の成形方法およびそれから得られた樹脂板 |
JP3582691B2 (ja) * | 1997-12-24 | 2004-10-27 | 三菱化学株式会社 | 燃料タンク用キャップ及び当該キャップ用耐衝撃性導電性ポリアミド樹脂組成物 |
FR2791116B1 (fr) † | 1999-03-16 | 2001-04-27 | Atochem Elf Sa | Tube antistatique a base de polyamides pour transport d'essence |
KR100315148B1 (ko) * | 1999-05-27 | 2001-11-30 | 오재동 | 대전방지 기능을 갖는 모노머 캐스팅 나일론의 제조방법 |
DE10245355A1 (de) † | 2002-09-27 | 2004-04-08 | Degussa Ag | Rohrverbindung |
-
1997
- 1997-12-23 FR FR9716406A patent/FR2772776B1/fr not_active Expired - Lifetime
-
1998
- 1998-12-11 JP JP2000526575A patent/JP4897139B2/ja not_active Expired - Lifetime
- 1998-12-11 ES ES98959965T patent/ES2247731T5/es not_active Expired - Lifetime
- 1998-12-11 WO PCT/FR1998/002703 patent/WO1999033908A1/fr active IP Right Grant
- 1998-12-11 CA CA002342711A patent/CA2342711C/fr not_active Expired - Fee Related
- 1998-12-11 KR KR1020007007089A patent/KR100595951B1/ko not_active IP Right Cessation
- 1998-12-11 AT AT98959965T patent/ATE301686T1/de not_active IP Right Cessation
- 1998-12-11 AU AU15678/99A patent/AU1567899A/en not_active Abandoned
- 1998-12-11 DE DE69831177T patent/DE69831177T3/de not_active Expired - Lifetime
- 1998-12-11 BR BR9814522-3A patent/BR9814522A/pt not_active IP Right Cessation
- 1998-12-11 CN CNB988137607A patent/CN1326922C/zh not_active Expired - Lifetime
- 1998-12-11 US US09/582,283 patent/US6506830B1/en not_active Expired - Lifetime
- 1998-12-11 EP EP98959965A patent/EP1042394B2/fr not_active Expired - Lifetime
-
2011
- 2011-11-24 JP JP2011256260A patent/JP5634973B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69831177D1 (de) | 2005-09-15 |
KR20010033578A (ko) | 2001-04-25 |
EP1042394A1 (fr) | 2000-10-11 |
FR2772776B1 (fr) | 2002-03-29 |
JP2001527146A (ja) | 2001-12-25 |
DE69831177T3 (de) | 2012-09-20 |
ES2247731T5 (es) | 2011-08-05 |
DE69831177T2 (de) | 2006-06-08 |
EP1042394B2 (fr) | 2011-04-06 |
ES2247731T3 (es) | 2006-03-01 |
AU1567899A (en) | 1999-07-19 |
CA2342711A1 (fr) | 1999-07-08 |
CN1326922C (zh) | 2007-07-18 |
CN1284976A (zh) | 2001-02-21 |
CA2342711C (fr) | 2007-07-31 |
FR2772776A1 (fr) | 1999-06-25 |
EP1042394B1 (fr) | 2005-08-10 |
ATE301686T1 (de) | 2005-08-15 |
KR100595951B1 (ko) | 2006-07-03 |
JP5634973B2 (ja) | 2014-12-03 |
US6506830B1 (en) | 2003-01-14 |
WO1999033908A1 (fr) | 1999-07-08 |
JP2012107243A (ja) | 2012-06-07 |
JP4897139B2 (ja) | 2012-03-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/12/1998, OBSERVADAS AS CONDICOES LEGAIS. |
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B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
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