ES2171059T3 - Procedimiento para aclarar el color de difenilmetanodiisocianato polimerico, asi como el uso de difenilmetanodiisocianato aclarado en la fabricacion de plasticos de poliuretano. - Google Patents

Procedimiento para aclarar el color de difenilmetanodiisocianato polimerico, asi como el uso de difenilmetanodiisocianato aclarado en la fabricacion de plasticos de poliuretano.

Info

Publication number
ES2171059T3
ES2171059T3 ES99105729T ES99105729T ES2171059T3 ES 2171059 T3 ES2171059 T3 ES 2171059T3 ES 99105729 T ES99105729 T ES 99105729T ES 99105729 T ES99105729 T ES 99105729T ES 2171059 T3 ES2171059 T3 ES 2171059T3
Authority
ES
Spain
Prior art keywords
difenylmethanodiisocianate
polymer
color
procedure
well
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES99105729T
Other languages
English (en)
Inventor
Torrel Juan Morell
Rodriguez Salvador Vidal
Alda Vicente Requena
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of ES2171059T3 publication Critical patent/ES2171059T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/901—Effecting a color change by wave energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S522/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S522/913—Numerically specified distinct wavelength

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Materials For Medical Uses (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO PARA EL ACLARAMIENTO DE COLOR DE DIFENILMETANODIISOCIANATO POLIMERICO MEDIANTE RADIACION CON LUZ DE UNA LONGITUD DE ONDA DE 250 NM HASTA 2.500 NM, ASI COMO LA UTILIZACION DE ESTE DIFENILMETANODIISOCIANATO ACLARADO COMO COMPONENTE DE ISOCIANATO PARA LA SINTESIS DE PLASTICOS DE POLIURETANO SEGUN EL PROCEDIMIENTO DE POLIADICION DEL ISOCIANATO.
ES99105729T 1998-04-03 1999-03-22 Procedimiento para aclarar el color de difenilmetanodiisocianato polimerico, asi como el uso de difenilmetanodiisocianato aclarado en la fabricacion de plasticos de poliuretano. Expired - Lifetime ES2171059T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19815055A DE19815055A1 (de) 1998-04-03 1998-04-03 Verfahren zur Farbaufhellung von polymeren Diphenylmethandiisocyanat sowie die Verwendung von aufgehellten Diphenylmethandiisocyanat bei der Herstellung von Polyurethankunststoffen

Publications (1)

Publication Number Publication Date
ES2171059T3 true ES2171059T3 (es) 2002-08-16

Family

ID=7863544

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99105729T Expired - Lifetime ES2171059T3 (es) 1998-04-03 1999-03-22 Procedimiento para aclarar el color de difenilmetanodiisocianato polimerico, asi como el uso de difenilmetanodiisocianato aclarado en la fabricacion de plasticos de poliuretano.

Country Status (5)

Country Link
US (1) US5994579A (es)
EP (1) EP0947530B1 (es)
JP (1) JP2000026569A (es)
DE (2) DE19815055A1 (es)
ES (1) ES2171059T3 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030006526A1 (en) * 2001-04-30 2003-01-09 Fusion Specialties, Inc. Molded Display Forms
DE10141620A1 (de) 2001-08-24 2003-03-06 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert
DE10228734A1 (de) * 2002-06-27 2004-01-22 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert
US20110028579A1 (en) * 2008-04-01 2011-02-03 Base Se Process for lightening the color of polyisocyanates with ozone-containing gas
EP2421818B1 (de) 2009-04-24 2014-08-27 Basf Se Verfahren zur herstellung von farbstabilem mda und mdi
WO2011002172A2 (ko) 2009-07-03 2011-01-06 주식회사 엘지화학 고흡수성 수지 제조용 중합 반응기 및 상기 중합 반응기를 사용한 고흡수성 수지의 제조 방법
US8496860B2 (en) * 2009-07-31 2013-07-30 Fusion Specialties, Inc. Foam-backed, hollow articles made by cold rotational molding
CN112108101A (zh) * 2020-09-28 2020-12-22 重庆大学 一种仿生肠道自蠕动反应器
CN112280003A (zh) * 2020-11-04 2021-01-29 湖南中泰特种装备有限责任公司 一种共聚型消光水性聚氨酯乳液及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465639A (en) * 1983-01-26 1984-08-14 The Upjohn Company Process for polyisocyanates
US5136087A (en) * 1991-05-15 1992-08-04 Miles Inc. Preparation of polymethylene polyphenyl polyisocyanate
DK0538500T3 (da) * 1991-10-19 1995-04-10 Basf Corp Fremgangsmåde til fremstilling af polymethylenpolyphenylenpolyisocyanater med formindsket farve- og chloridindhold
US5312971A (en) * 1992-07-23 1994-05-17 Miles Inc. Color reduction of polymethylene polyphenyl polyisocyanates
DE4318018A1 (de) * 1993-05-29 1994-12-01 Basf Schwarzheide Gmbh Verfahren zur Herstellung von organischen Isocyanaten, insbesondere Mischungen aus Diphenylmethan-diisocyanaten und Polymethylen-polyphenylen-polyisocyanaten, mit verringerter Farbzahl
DE59503894D1 (de) * 1994-04-07 1998-11-19 Bayer Ag Verfahren zur Herstellung von Isocyanaten oder Isocyanatgemischen

Also Published As

Publication number Publication date
DE59900731D1 (de) 2002-02-28
EP0947530B1 (de) 2002-01-09
JP2000026569A (ja) 2000-01-25
DE19815055A1 (de) 1999-10-07
US5994579A (en) 1999-11-30
EP0947530A1 (de) 1999-10-06

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