[go: up one dir, main page]

AR007860A1 - Procedimiento para elaborar elastomeros al menos parcialmente reticulados, los elastomeros que se obtienen con dicho procedimiento; composicionestermoplasticas procesables en fusion que incluyen dichos elastomeros y articulos fabricados con dichos elastomeros. - Google Patents

Procedimiento para elaborar elastomeros al menos parcialmente reticulados, los elastomeros que se obtienen con dicho procedimiento; composicionestermoplasticas procesables en fusion que incluyen dichos elastomeros y articulos fabricados con dichos elastomeros.

Info

Publication number
AR007860A1
AR007860A1 ARP970103108A ARP970103108A AR007860A1 AR 007860 A1 AR007860 A1 AR 007860A1 AR P970103108 A ARP970103108 A AR P970103108A AR P970103108 A ARP970103108 A AR P970103108A AR 007860 A1 AR007860 A1 AR 007860A1
Authority
AR
Argentina
Prior art keywords
elastomers
partially
elastomer
procedure
substituents
Prior art date
Application number
ARP970103108A
Other languages
English (en)
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of AR007860A1 publication Critical patent/AR007860A1/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/16Ethene-propene or ethene-propene-diene copolymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/30Introducing nitrogen atoms or nitrogen-containing groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/24Crosslinking, e.g. vulcanising, of macromolecules
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0807Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
    • C08L23/0815Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions 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
    • C08L51/06Compositions 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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/20Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00Crosslinking
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02Polyalkylene oxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00Compositions of oils, fats or waxes; Compositions of derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Se describen procesos para elaborar elastómeros vulcanizados, al menos parcialmente, y composiciones termoplásticas procesables que constan de dichoselastómeros, y elastómeros, composiciones y artículos de caucho que se obtienen a través dedich os procesos. Estos elastómeros se obtienen al reticular almenos parcialmente un polímero elastómerico que contiene sustituyentes activos con un agente de reticulación que posee un peso molecular promedio inferiora 2000, que contienen dos o mássusti tuyentes reactivos que difieren de los contenidos en el polímero elastomérico, cada uno de los sustituyentes seselecciona del grupo que consta de ácido carboxílico, anhídrido carboxílico, sal de ácido carboxílico, haluro carbonilo,hidroxi, ep oxi e isocianato demodo tal que los del elastómero reaccionarán con los del agente de reticulación para reticular el elastómero al menos parcialmente. Se prepara unelastómero reticulado al menos parcialmente mediante unproceso que consi ste en hacer reaccionar al poner en contacto (i) un polímero elastomérico quecontiene sustituyentes reactivos y (ii) un agente de reticulación (a) que contiene dos o más sustituyentes reactivos que difieren de loscontenidos enel polímero el astomérico y (b) que posee un peso molecular promedio inferior a alrededor de 2000, cada uno de los sustituyentes reactivos se seleccionan demodo que el elastómero reaccionará con los del agente de reticulación parareticular al menos parcial mente el elastómero y cada uno de los sustituyentesreactivos se selecciona de un grupo que consta de ácido carboxílico, anhídrido carboxílico, sal de ácido carboxílico, haluro carbonilo, hidroxi,epoxi eisocianato. Otro aspecto es el elast ómero reticulado, al menos parcialmente, que se obtiene mediante el proceso antes mencionado.
ARP970103108A 1996-07-12 1997-07-11 Procedimiento para elaborar elastomeros al menos parcialmente reticulados, los elastomeros que se obtienen con dicho procedimiento; composicionestermoplasticas procesables en fusion que incluyen dichos elastomeros y articulos fabricados con dichos elastomeros. AR007860A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67894196A 1996-07-12 1996-07-12
US67890996A 1996-07-12 1996-07-12

Publications (1)

Publication Number Publication Date
AR007860A1 true AR007860A1 (es) 1999-11-24

Family

ID=27102125

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970103108A AR007860A1 (es) 1996-07-12 1997-07-11 Procedimiento para elaborar elastomeros al menos parcialmente reticulados, los elastomeros que se obtienen con dicho procedimiento; composicionestermoplasticas procesables en fusion que incluyen dichos elastomeros y articulos fabricados con dichos elastomeros.

Country Status (15)

Country Link
EP (1) EP0910606B1 (es)
JP (1) JP2000515184A (es)
KR (2) KR100537720B1 (es)
CN (1) CN1137193C (es)
AR (1) AR007860A1 (es)
AT (1) ATE201891T1 (es)
AU (1) AU3727397A (es)
BR (1) BR9710290A (es)
CA (1) CA2259561C (es)
DE (1) DE69705122T2 (es)
ES (1) ES2157589T3 (es)
ID (1) ID19083A (es)
MY (1) MY117913A (es)
TW (1) TW421662B (es)
WO (1) WO1998002489A1 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004507375A (ja) * 1999-08-26 2004-03-11 ピレリ・プネウマティチ・ソチエタ・ペル・アツィオーニ タイヤを製造する方法、それによって得られたタイヤおよびそれに使用されるエラストマー組成物
EP1539878A1 (fr) * 2002-09-10 2005-06-15 Société de Technologie Michelin Composition de caoutchouc pour bande de roulement de pneumatique
US7550533B2 (en) * 2005-07-01 2009-06-23 E. I. Du Pont De Nemours And Company Composition comprising acid anhydride-grafted polyolefin
US7550534B2 (en) 2005-11-16 2009-06-23 Sabic Innovative Plastics Ip B.V. Thermoplastic method, composition, and article
KR100666818B1 (ko) * 2006-02-20 2007-01-09 주식회사 엘지화학 우수한 저온색상안정성을 갖는 열가소성 성형재
ES2400224T3 (es) * 2006-06-15 2013-04-08 Dow Global Technologies Llc Interpolímeros de olefina funcionalizados, composiciones y artículos preparados con ellos y métodos para producir los mismos
KR100757590B1 (ko) * 2006-10-31 2007-09-10 현대자동차주식회사 저선팽창 연질 열가소성 수지 조성물
BR112016007837B1 (pt) * 2013-10-18 2021-11-30 Dow Global Technologies Llc Componente de proteção de cabo óptico extrudido e cabo de fibra óptica
CN103570993A (zh) * 2013-11-20 2014-02-12 江苏江旭铸造集团有限公司 铸件喷砂胶管
JP2019089867A (ja) * 2016-02-29 2019-06-13 株式会社日立製作所 樹脂組成物及び電線
TW201840705A (zh) 2016-12-19 2018-11-16 德商科思創德意志股份有限公司 具有良好機械性質的熱塑性組成物
CN107814944A (zh) * 2017-10-10 2018-03-20 北京化工大学 共聚物及制备方法与应用
US11767426B2 (en) 2017-11-10 2023-09-26 Covestro Deutschland Ag Glass fiber filled thermoplastic composition having good mechanical properties
EP3707209B1 (de) 2017-11-10 2021-07-21 Covestro Intellectual Property GmbH & Co. KG Mineralgefüllte thermoplastische zusammensetzung mit guten mechanischen eigenschaften
CN113558317A (zh) 2017-11-24 2021-10-29 绿安全股份有限公司 手套、浸渍成型用组合物和手套的制造方法
WO2019122459A1 (en) * 2017-12-22 2019-06-27 Sabic Global Technologies B.V. Process for preparation of functionalized ethylene and propylene copolymer
EP3775039B1 (en) 2018-04-09 2022-11-30 Covestro Deutschland AG Glass fiber reinforced thermoplastic compositions with good mechanical properties
CN113993910B (zh) * 2019-03-18 2024-12-20 芬欧汇川集团 一种以熔融状态反应制造热塑性聚乙烯醇衍生物的方法及其产品
FR3147902B1 (fr) * 2023-04-11 2025-11-07 Nexans Couche de polymère réticulé pour dispositif électrique

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1425702A (fr) * 1964-02-22 1966-01-24 Bayer Ag Procédé de préparation de résines thermoplastiques aptes au formage
US3354116A (en) * 1964-11-12 1967-11-21 Phillips Petroleum Co Compounding procedure for acidicterminated polymers
GB1131010A (en) * 1966-06-23 1968-10-16 Raychem Corp Crosslinked polymers
FR2135098A1 (en) * 1971-05-06 1972-12-15 Du Pont Butadiene/acrylonitrile copolymers contg epoxy - resin groups
CA1124917A (en) * 1977-11-09 1982-06-01 Michael A. Fath Elastoplastic blends of cured olefin rubber and polyolefin resin
US4486571A (en) * 1983-01-05 1984-12-04 Ford Motor Company Epoxy-modified polybutadiene crosslinkable resin coating composition
US4624885A (en) * 1984-11-28 1986-11-25 Morton Thiokol, Inc. Low density matrix resins for filament wound chambers comprising chain extended carboxy-terminated polybutadienes
US4632962A (en) * 1984-12-24 1986-12-30 General Electric Company Hydroxyl group graft modified polyolefins
GB8606808D0 (en) * 1986-03-19 1986-04-23 Malaysian Rubber Producers Elastoplastic compositions
US4983684A (en) * 1989-02-27 1991-01-08 The Goodyear Tire & Rubber Company Crosslinkable rubber composition
JP2544994B2 (ja) * 1989-06-28 1996-10-16 日本石油化学株式会社 射出成形材料及び車両外装用材料
US5037888A (en) * 1989-11-09 1991-08-06 Eastman Kodak Company Thermoplastic elastomeric compositions and method for their preparation
NL9200603A (nl) * 1992-03-31 1993-10-18 Dsm Nv Een polymeersamenstelling omvattende een mengsel van een polyolefine en een polymeer op basis van vinylaromatische en dicarbonzuuranhydride monomeereenheden.
US5412038A (en) * 1993-06-28 1995-05-02 Union Carbide Chemicals & Plastics Technology Corporation Process utilizing alkenylcarboxylate crosslinkers

Also Published As

Publication number Publication date
DE69705122D1 (de) 2001-07-12
CA2259561C (en) 2009-04-28
EP0910606B1 (en) 2001-06-06
TW421662B (en) 2001-02-11
WO1998002489A1 (en) 1998-01-22
BR9710290A (pt) 1999-08-17
KR20050085981A (ko) 2005-08-29
KR100537720B1 (ko) 2005-12-20
ID19083A (id) 1998-06-11
EP0910606A1 (en) 1999-04-28
JP2000515184A (ja) 2000-11-14
KR20000023630A (ko) 2000-04-25
ATE201891T1 (de) 2001-06-15
ES2157589T3 (es) 2001-08-16
CN1225108A (zh) 1999-08-04
DE69705122T2 (de) 2001-09-27
CN1137193C (zh) 2004-02-04
MY117913A (en) 2004-08-30
CA2259561A1 (en) 1998-01-22
AU3727397A (en) 1998-02-09
KR100530402B1 (ko) 2005-11-22

Similar Documents

Publication Publication Date Title
AR007860A1 (es) Procedimiento para elaborar elastomeros al menos parcialmente reticulados, los elastomeros que se obtienen con dicho procedimiento; composicionestermoplasticas procesables en fusion que incluyen dichos elastomeros y articulos fabricados con dichos elastomeros.
ES473034A1 (es) Procedimiento para la obtencion de materiales sinteticos de poliuretano
AR002354A1 (es) Composiciones transdermicas que contienen farmacos de bajo peso molecular que son liquidos a las temperaturas ambientales.
ES8704989A1 (es) Un metodo para preparar una composicion obturadora curable por humedad
ATE148900T1 (de) Hydrophile, hochquellfähige hydrogele
DE60020739D1 (de) Verfahren zur herstellung eines optischen polymeren
DE68913848D1 (de) Titanesterbeschleuniger enthaltende schnellhärtende Polyurethan-Dichtungsmittelzusammensetzung.
ES8606008A1 (es) Un procedimiento para prepara un alcohol modificado adecuado para su uso como un estabilizador.
ES464399A1 (es) Un procedimiento para producir una composicion liquida de polimeronpoliol.
MX168396B (es) Membrana microporosa modificada de carga procedimiento para modificacion de carga de dicha membrana y procedimiento para la filtracion de fluidos
DK0705298T3 (da) Albuminbaseret hydrogel
SE7900801L (sv) Etentereftalatplastkomposition innehallande armerings- eller fyllmedel
ES2070853T3 (es) Polieter-ester amida y composicion de resina permanentemente antiestatica.
DK165458C (da) Farmaceutisk eller veterinaert acceptabel, amphipatisk, ikke-tvaerbundet, lineaer, forgrenet eller podeblokcopolymer og fremgangsmaade til fremstilling af denne,matrix til brug i et laegemiddel til frigivelse af syrestabile polypeptider omfattende copolymeren samt farmaceutisk middel til parenteral administration omfattende et farmakologisk nyttigt polypeptid og omfattende copolymeren
ES2128704T3 (es) Polilactidas procesables.
AR003223A1 (es) Una composicion de un prepolimero de viscosidad estable terminado con isocianato, una composición de poliol de polioxialquileno estable al almacenamiento y su metodo de preparación, composiciones de polimero de poliuretano y de elastómero de dicho poliuretano
Tang et al. Application of macromolecular additives to reduce the hydrolytic degradation of polyurethanes by lysosomal enzymes
DE59301367D1 (de) Treibmittelzusammensetzungen und Verfahren zu Herstellung von elastomeren Siliconschaumstoffen
BR9813527A (pt) Composição de vulcanizado termoplástico, e, processo para preparar a mesma
DK0545126T3 (da) Hydrofile, kvældbare podepolymerer
KR850002411A (ko) 손상된 경화 탄성체 제품을 수리하는 방법
ES2132111T3 (es) Composiciones de resinas termoplasticas de poco brillo.
KR970042750A (ko) 조절된 점도를 가진 폴리올-기재 가소화 조성물
DE69032399D1 (de) Ethylen-propylen-dienkautschuk, elastomermischung und daraus hergestellter vulkanisierter kautschuk
MX168249B (es) Reparacion a temperatura ambiente de articulos elastomericos que tienen un hueco o deformidad en los mismos

Legal Events

Date Code Title Description
FA Abandonment or withdrawal