AR010462A2 - Un proceso para preparar una espuma flexible - Google Patents

Un proceso para preparar una espuma flexible

Info

Publication number
AR010462A2
AR010462A2 ARP970101792A ARP970101792A AR010462A2 AR 010462 A2 AR010462 A2 AR 010462A2 AR P970101792 A ARP970101792 A AR P970101792A AR P970101792 A ARP970101792 A AR P970101792A AR 010462 A2 AR010462 A2 AR 010462A2
Authority
AR
Argentina
Prior art keywords
weight
water
flexible foam
reacting
mixture
Prior art date
Application number
ARP970101792A
Other languages
English (en)
Original Assignee
Huntsman Ici Chem Llc
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 Huntsman Ici Chem Llc filed Critical Huntsman Ici Chem Llc
Publication of AR010462A2 publication Critical patent/AR010462A2/es

Links

Classifications

    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/485—Polyethers containing oxyethylene units and other oxyalkylene units containing mixed oxyethylene-oxypropylene or oxyethylene-higher oxyalkylene end groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0058—≥50 and <150kg/m3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • C08J2400/00—Characterised by the use of unspecified polymers
    • C08J2400/14—Water soluble or water swellable polymers, e.g. aqueous gels

Abstract

Un proceso para preparar una espuma flexible mediante la reaccion de un prepolímero que posee un valor de NCO de 3-15% por peso, que es el producto dereaccion obtenido mediante la reaccion de una cantidad excesiva de un poliisocianatoc on un poliol de polieter o una mezcla de tales polioles, dichopoliol o mezcla posee una funcionalidad de hidroxilo nominal promedio de desde 2 a 6, un peso equivalente de hidroxilo promedio de desde 500 a 5000 y uncontenido de oxietileno de porlo m enos 50% por peso, con agua, siendo la cantidad de agua 15-500 partes por peso por 100 partes por peso de prepolímerocaracterizado porque la reaccion del propolímero y el agua es llevada a cabo en la presencia de un polímerosuperabsorbente.
ARP970101792A 1994-11-22 1997-04-30 Un proceso para preparar una espuma flexible AR010462A2 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94203401 1994-11-22
EP95201245 1995-05-12

Publications (1)

Publication Number Publication Date
AR010462A2 true AR010462A2 (es) 2000-06-28

Family

ID=26136759

Family Applications (4)

Application Number Title Priority Date Filing Date
ARP950100187A AR000912A1 (es) 1994-11-22 1995-11-16 Un proceso para preparar una espuma flexible, composicion y articulo absorbente.
ARP970101794A AR006923A2 (es) 1994-11-22 1997-04-30 Articulo absorbente
ARP970101793A AR010463A2 (es) 1994-11-22 1997-04-30 Composicion de espuma flexible
ARP970101792A AR010462A2 (es) 1994-11-22 1997-04-30 Un proceso para preparar una espuma flexible

Family Applications Before (3)

Application Number Title Priority Date Filing Date
ARP950100187A AR000912A1 (es) 1994-11-22 1995-11-16 Un proceso para preparar una espuma flexible, composicion y articulo absorbente.
ARP970101794A AR006923A2 (es) 1994-11-22 1997-04-30 Articulo absorbente
ARP970101793A AR010463A2 (es) 1994-11-22 1997-04-30 Composicion de espuma flexible

Country Status (26)

Country Link
EP (2) EP0894814A1 (es)
JP (2) JP3761575B2 (es)
KR (1) KR100359041B1 (es)
CN (2) CN1097066C (es)
AR (4) AR000912A1 (es)
AT (1) ATE182341T1 (es)
AU (1) AU701887B2 (es)
BG (1) BG63344B1 (es)
BR (1) BR9509743A (es)
CA (1) CA2203516A1 (es)
CZ (1) CZ287677B6 (es)
DE (1) DE69510953T2 (es)
DK (1) DK0793681T3 (es)
ES (1) ES2135774T3 (es)
FI (1) FI116224B (es)
GR (1) GR3031072T3 (es)
HK (1) HK1002660A1 (es)
HU (1) HU216283B (es)
MX (1) MX9703640A (es)
MY (1) MY113411A (es)
NO (1) NO312517B1 (es)
PL (1) PL181727B1 (es)
RO (1) RO120139B1 (es)
SI (1) SI9520123B (es)
TR (1) TR199501467A2 (es)
WO (1) WO1996016099A1 (es)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5744509A (en) * 1996-07-01 1998-04-28 Woodbridge Foam Corporation Foamed polymer and process for production thereof
US5624971A (en) * 1996-07-01 1997-04-29 Woodbridge Foam Corporation Foamed polymer and process for production thereof
US6296774B1 (en) 1999-01-29 2001-10-02 The Western States Machine Company Centrifuge load control for automatic infeed gate adjustment
DE19909214A1 (de) 1999-03-03 2000-09-07 Basf Ag Wasserabsorbierende, schaumförmige, vernetzte Polymerisate mit verbesserter Verteilungswirkung, Verfahren zu ihrer Herstellung und ihre Verwendung
WO2001032735A1 (en) * 1999-11-02 2001-05-10 Huntsman International Llc Process for making high resilience foams
DE10006340A1 (de) * 2000-02-12 2001-08-16 Basf Ag Verfahren zur Herstellung von Polyurethan-Schaumstoffen
EP1178061A1 (en) * 2000-08-01 2002-02-06 Huntsman International Llc Process for preparing a polyurethane material
CA2417542A1 (en) * 2002-01-28 2003-07-28 Jeffrey D. Van Heumen Foamed isocynate-based polymer having improved toughness and process for production thereof
US7687548B2 (en) 2002-07-01 2010-03-30 Huntsman International Llc Process for preparing a moulded polyurethane material
AU2003242686A1 (en) * 2002-07-01 2004-01-19 Huntsman International Llc Process for preparing a moulded polyurethane material
DE102004061406A1 (de) * 2004-12-21 2006-07-06 Bayer Innovation Gmbh Infektionsresistente Polyurethanschäume, Verfahren zu ihrer Herstellung und Verwendung in antiseptisch ausgestatteten Wundauflagen
US20090234039A1 (en) * 2006-05-22 2009-09-17 Basf Se Shoe soles displaying water absorbing properties
EP2028223A1 (de) * 2007-08-23 2009-02-25 Bayer MaterialScience AG EO/PO-Blockcopolymere als Stabilisatoren für PUR-Schäume
KR20100075927A (ko) * 2007-10-19 2010-07-05 바이엘 머티리얼사이언스 아게 미용 제품을 위한 방향첨가된 츄잉 발포체의 제조 방법
EP2072063A1 (en) * 2007-12-22 2009-06-24 Bayer Innovation GmbH Infection-resistant cellular hydrophilic prepolymer based polyurethane foams, methods for producing the same and use thereof in antiseptic wound dressings
EP2140888A1 (de) * 2008-07-04 2010-01-06 Bayer MaterialScience AG Schichtenverbund, geeignet als Wundauflage, umfassend eine Polyurethanschaumschicht, eine Absorberschicht und eine Deckschicht
AT507850B1 (de) 2009-01-22 2016-01-15 Eurofoam Gmbh Schaumstoffelement mit darin eingelagerten hydrophilen mitteln
AT507849B1 (de) * 2009-01-22 2011-09-15 Eurofoam Gmbh Schaumstoffelement mit darin eingelagerter zellulose
NZ598608A (en) 2009-10-07 2013-04-26 Huntsman Int Llc Process for making a flexible polyurethane foam
FR2974005B1 (fr) 2011-04-15 2014-05-02 Urgo Lab Pansement adhesif mince tres absorbant, ses utilisations pour le traitement des plaies chroniques
FR2974004B1 (fr) 2011-04-15 2014-05-02 Urgo Lab Pansement absorbant hydrocellulaire, ses utilisations pour le traitement des plaies chroniques et aigues
PL2771377T3 (pl) 2011-10-28 2016-08-31 Huntsman Int Llc Sposób wytwarzania pianki poliuretanowej
EP2700396A3 (en) 2012-06-20 2015-04-29 Sylphar Nv Strip for the delivery of oral care compositions
CN103087502A (zh) * 2012-12-28 2013-05-08 东莞市帕瑞诗贸易有限公司 一种亲水性聚氨酯泡绵及发泡工艺
FR3003463B1 (fr) 2013-03-20 2015-04-10 Urgo Lab Pansement ayant un bord peripherique adhesif avec un pourtour ondule
EP2818040A1 (en) 2013-06-24 2014-12-31 Huntsman International Llc Polyurethane foam for use as soil improver
US20150087737A1 (en) * 2013-09-24 2015-03-26 Dow Global Technologies Llc Hydrophilic Polyurethane Foam for Liquid Based Cleaning Applications
US10076154B2 (en) 2014-08-27 2018-09-18 Nike, Inc. Article of footwear with soil-shedding performance
WO2016033277A1 (en) 2014-08-27 2016-03-03 Nike Innovate C.V. Articles of footwear, apparel, and sports equipment with water absorbtion properties
GB2532837B (en) 2014-08-27 2017-10-25 Nike Innovate Cv Article of footwear with soil-shedding performance
MX2017005020A (es) * 2014-10-29 2017-07-19 Dow Global Technologies Llc Prepolimero hidrofilo para espumas de poliuretano.
CN104629075A (zh) * 2015-01-21 2015-05-20 南京瑞柯徕姆环保科技有限公司 一种柔性喷磨材料制备方法
CN104610555A (zh) * 2015-01-21 2015-05-13 南京瑞柯徕姆环保科技有限公司 一种嵌入纤维的柔性喷磨材料制备方法
CN104693461A (zh) * 2015-01-21 2015-06-10 南京瑞柯徕姆环保科技有限公司 一种阻燃型柔性喷磨材料制备方法
CN104592534A (zh) * 2015-01-21 2015-05-06 南京瑞柯徕姆环保科技有限公司 一种阻燃纤维型柔性喷磨材料制备方法
CN104610556A (zh) * 2015-01-24 2015-05-13 南京瑞柯徕姆环保科技有限公司 一种防锈型柔性喷磨材料制备方法
US10531705B2 (en) 2016-03-02 2020-01-14 Nike, Inc. Hydrogel tie layer
EP3235520A1 (de) * 2016-04-22 2017-10-25 Covestro Deutschland AG Verfahren zur herstellung eines partikel umfassenden schaums, schaum mit hoher retention und wundauflage umfassend einen solchen schaum
FR3056100B1 (fr) 2016-09-20 2019-07-05 Urgo Recherche Innovation Et Developpement Pansement absorbant comprenant un non-tisse superabsorbant hydrodelitable
US11485816B2 (en) * 2017-12-20 2022-11-01 Dow Global Technologies Llc Polyurethane foams for comfort applications
CN108976775B (zh) * 2018-07-05 2021-02-09 江苏钟山化工有限公司 水中可沉降的聚氨酯软泡材料的制备方法及其应用
TWI723333B (zh) * 2019-01-23 2021-04-01 南韓商韓國Ｐ＆Ｐ股份有限公司 組合有生物膳食纖維組合物的含浸材料以及上述含浸材料的製造方法
CN110577627A (zh) * 2019-09-09 2019-12-17 上海万华科聚化工科技发展有限公司 一种具有高吸收能力的吸收材料的制备方法及其应用
CN111072909B (zh) * 2020-01-02 2021-09-07 万华化学集团股份有限公司 亲水性聚氨酯预聚物及其制备方法和在软质泡沫塑料中的应用
CN112961304B (zh) * 2021-03-11 2022-06-28 江苏钟山新材料有限公司 一种制备在水中可快速沉降的聚氨酯泡沫的方法
FR3133122B1 (fr) 2022-03-03 2024-03-01 Urgo Rech Innovation Et Developpement Pansement modulable
CN115322321B (zh) * 2022-08-03 2024-03-12 佳化化学科技发展（上海）有限公司 一种亲水性软质泡沫及其制备方法
EP4338762A1 (en) * 2022-09-15 2024-03-20 Paul Hartmann AG Process of producing a highly absorbent hydrogel composition for medical purposes, in particular for wound treatment
CN117384345B (zh) * 2023-12-13 2024-04-12 山东一诺威新材料有限公司 吸水膨胀聚氨酯泡沫及其制备方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137200A (en) * 1973-10-09 1979-01-30 W. R. Grace & Co. Crosslinked hydrophilic foams and method
US3903232A (en) * 1973-10-09 1975-09-02 Grace W R & Co Dental and biomedical foams and method
JPS5417360B2 (es) * 1974-08-15 1979-06-29
US4384050A (en) * 1981-10-26 1983-05-17 W. R. Grace & Co. Flexible polyurethane foam based on MDI
US4638017A (en) * 1985-12-09 1987-01-20 Minnesota Mining And Manufacturing Company Hydrophilic polyurethane/polyurea sponge
US4740528A (en) * 1986-07-18 1988-04-26 Kimberly-Clark Corporation Superwicking crosslinked polyurethane foam composition containing amino acid
US5065752A (en) * 1988-03-29 1991-11-19 Ferris Mfg. Co. Hydrophilic foam compositions
US5064653A (en) * 1988-03-29 1991-11-12 Ferris Mfg. Co. Hydrophilic foam compositions
US4985467A (en) * 1989-04-12 1991-01-15 Scotfoam Corporation Highly absorbent polyurethane foam
US5296518A (en) * 1991-05-24 1994-03-22 Hampshire Chemical Corp. Hydrophilic polyurethaneurea foams containing no toxic leachable additives and method to produce such foams
US5268224A (en) * 1991-08-12 1993-12-07 The Procter & Gamble Company Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials
EP0547765B1 (en) * 1991-12-17 1997-06-11 Imperial Chemical Industries Plc Polyurethane foams
GB9311838D0 (en) * 1993-06-08 1993-07-28 Ici Plc Process for making flexible foams

Also Published As

Publication number Publication date
CN1097066C (zh) 2002-12-25
JP2005113155A (ja) 2005-04-28
AR006923A2 (es) 1999-09-29
BG101604A (en) 1998-02-27
CA2203516A1 (en) 1996-05-30
HK1002660A1 (en) 1998-09-11
AR000912A1 (es) 1997-08-27
CN1213088C (zh) 2005-08-03
KR100359041B1 (ko) 2003-02-17
NO972322D0 (no) 1997-05-21
PL181727B1 (pl) 2001-09-28
CN1439660A (zh) 2003-09-03
JPH10509473A (ja) 1998-09-14
FI972171A (fi) 1997-05-21
TR199501467A2 (tr) 1996-07-21
CN1164243A (zh) 1997-11-05
SI9520123A (en) 1997-12-31
FI116224B (fi) 2005-10-14
RO120139B1 (ro) 2005-09-30
AU3806395A (en) 1996-06-17
AU701887B2 (en) 1999-02-11
NO312517B1 (no) 2002-05-21
MX9703640A (es) 1997-08-30
DE69510953D1 (de) 1999-08-26
WO1996016099A1 (en) 1996-05-30
BG63344B1 (bg) 2001-10-31
MY113411A (en) 2002-02-28
ES2135774T3 (es) 1999-11-01
BR9509743A (pt) 1997-10-21
AR010463A2 (es) 2000-06-28
HUT76982A (hu) 1998-01-28
CZ287677B6 (en) 2001-01-17
GR3031072T3 (en) 1999-12-31
EP0793681B1 (en) 1999-07-21
JP3761575B2 (ja) 2006-03-29
CZ152497A3 (en) 1997-08-13
PL320365A1 (en) 1997-09-29
EP0793681A1 (en) 1997-09-10
NO972322L (no) 1997-07-21
EP0894814A1 (en) 1999-02-03
ATE182341T1 (de) 1999-08-15
DK0793681T3 (da) 2000-01-24
HU216283B (hu) 1999-06-28
DE69510953T2 (de) 1999-12-09
SI9520123B (en) 2001-12-31
FI972171A0 (fi) 1997-05-21

Similar Documents

Publication Publication Date Title
AR010462A2 (es) Un proceso para preparar una espuma flexible
ATE157377T1 (de) Verfahren zur herstellung von weichschaumstoffen
MY106888A (en) An isocyanate-terminated prepolymer and flexible polyurethane foam prepared therefrom
ES2170120T3 (es) Composicion de isocianato y procedimiento para preparar espumas flexibles a partir de la misma.
KR930012922A (ko) 폴리우레탄 발포체
ES2101108T3 (es) Un procedimiento para preparar un elastomero de poliuretano microcelular a partir de un prepolimero con terminacion de isocianato con &#34;segmento blando&#34; y elastomero de poliuretano microcelular obtenido a partir del mismo.
DK200401639A (da) Fleksibelt polyurethanskum
MY110496A (en) Polyurethane foams
MX9600812A (es) Espuma de poliuretano de celula abierta flexible.
MY110837A (en) Process for making flexible foams
MY110549A (en) Polyurethane foams
HRP930945B1 (en) Flexible, combustion - modified polyuretane foams
CO4900094A1 (es) Composicion de prepolimeros y proceso para la preparacion de espumas con dicha composicion
MY132712A (en) Process for preparing a flexible foam
SI0903360T1 (en) Hydrophile polyester-polyurethane foams, a process for their preparation and their use as humidity absorbing products
BR9807993A (pt) Processo para a produção de elastÈmeros de poliuretano, e, elastÈmero obtido pelo processo.
TW360673B (en) Polyurethane foams
Whitman et al. Wet Set Additives for High Resilience Foam
TH32870EX (th) โพลี ยูรีเทนโฟมชนิดอ่อนงอได้และกระบวนการสำหรับทำโพลียูรีแทนชนิดดังกล่าว
TH32870A (th) โพลี ยูรีเทนโฟมชนิดอ่อนงอได้และกระบวนการสำหรับทำโพลียูรีแทนชนิดดังกล่าว
TH32873A (th) พรีโพลิเมอร์ ซึ่งลงท้ายด้วยไอโซไซแอเนทและโฟมยืดหยุ่นโพลิยูรีเธนซึ่งเตรียมมาจากสารนั้น

Legal Events

Date Code Title Description
FG Grant, registration