USB518076I5 - - Google Patents

Info

Publication number
USB518076I5
USB518076I5 US51807674A USB518076I5 US B518076 I5 USB518076 I5 US B518076I5 US 51807674 A US51807674 A US 51807674A US B518076 I5 USB518076 I5 US B518076I5
Authority
US
United States
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.)
Pending
Application number
Other languages
English (en)
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 filed Critical
Priority to US05/518,076 priority Critical patent/US4014914A/en
Publication of USB518076I5 publication Critical patent/USB518076I5/en
Application granted granted Critical
Publication of US4014914A publication Critical patent/US4014914A/en
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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US05/518,076 1970-01-12 1974-10-25 Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates Expired - Lifetime US4014914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/518,076 US4014914A (en) 1970-01-12 1974-10-25 Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US212370A 1970-01-12 1970-01-12
US05/518,076 US4014914A (en) 1970-01-12 1974-10-25 Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US212370A Continuation 1970-01-12 1970-01-12

Publications (2)

Publication Number Publication Date
USB518076I5 true USB518076I5 (enrdf_load_stackoverflow) 1976-03-30
US4014914A US4014914A (en) 1977-03-29

Family

ID=26669974

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/518,076 Expired - Lifetime US4014914A (en) 1970-01-12 1974-10-25 Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates

Country Status (1)

Country Link
US (1) US4014914A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087459A (en) 1975-06-27 1978-05-02 Bayer Aktiengesellschaft Process for the preparation of polyamines
US4349484A (en) 1979-10-20 1982-09-14 Basf Aktiengesellschaft Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557500A1 (de) * 1975-12-19 1977-06-30 Bayer Ag Verfahren zur herstellung von polyaminen
US4162362A (en) * 1978-10-20 1979-07-24 Atlantic Richfield Company Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates
US4172948A (en) * 1979-01-24 1979-10-30 Atlantic Richfield Company Preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates
US4202986A (en) * 1979-02-12 1980-05-13 Atlantic Richfield Company Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with Lewis acid catalysts intercalated in graphite
DE2935318A1 (de) * 1979-08-31 1981-03-26 Bayer Ag, 51373 Leverkusen Neue diisocyanate bzw. diisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren
US4287132A (en) * 1980-09-29 1981-09-01 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
DE4006976A1 (de) * 1990-03-06 1991-09-12 Basf Ag Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenyl-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl
JP2875877B2 (ja) * 1990-10-23 1999-03-31 三井化学株式会社 メチレン架橋ポリフェニレンポリイソシアネートの製造方法
SE9403929L (sv) * 1994-11-15 1996-05-16 Chematur Eng Ab Sätt vid fosgenering
EP1979306B1 (de) * 2006-01-20 2013-04-17 Basf Se Verfahren zur simultanen herstellung von 4,4'-diphenylmethandiamin sowie diphenylmethandiisocyanat und polyphenylenpolymethylenpolyisocyanaten
DE102008015123A1 (de) * 2008-03-20 2009-09-24 Bayer Materialscience Ag Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
CN101580453B (zh) * 2009-04-27 2012-02-29 江苏隆昌化工有限公司 一种从生产二苯甲烷二异氰酸酯产生废液中提取废弃氯化苯工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542871A (en) * 1968-07-29 1970-11-24 Upjohn Co Purification of 4,4'-methylene dianiline by crystallization

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542871A (en) * 1968-07-29 1970-11-24 Upjohn Co Purification of 4,4'-methylene dianiline by crystallization

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087459A (en) 1975-06-27 1978-05-02 Bayer Aktiengesellschaft Process for the preparation of polyamines
US4349484A (en) 1979-10-20 1982-09-14 Basf Aktiengesellschaft Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates

Also Published As

Publication number Publication date
US4014914A (en) 1977-03-29

Similar Documents

Publication Publication Date Title
AR204384A1 (enrdf_load_stackoverflow)
ATA96471A (enrdf_load_stackoverflow)
AU2044470A (enrdf_load_stackoverflow)
AU1146470A (enrdf_load_stackoverflow)
AU1473870A (enrdf_load_stackoverflow)
AU1833270A (enrdf_load_stackoverflow)
AU2130570A (enrdf_load_stackoverflow)
AU2017870A (enrdf_load_stackoverflow)
AU1336970A (enrdf_load_stackoverflow)
AU1716970A (enrdf_load_stackoverflow)
AU1326870A (enrdf_load_stackoverflow)
AU1517670A (enrdf_load_stackoverflow)
AU2085370A (enrdf_load_stackoverflow)
AR195465A1 (enrdf_load_stackoverflow)
AU1591370A (enrdf_load_stackoverflow)
AU1841070A (enrdf_load_stackoverflow)
AU2115870A (enrdf_load_stackoverflow)
AU2144270A (enrdf_load_stackoverflow)
AU1343870A (enrdf_load_stackoverflow)
AU1277070A (enrdf_load_stackoverflow)
AU2131570A (enrdf_load_stackoverflow)
AU2130770A (enrdf_load_stackoverflow)
AU1247570A (enrdf_load_stackoverflow)
AU1581370A (enrdf_load_stackoverflow)
AU1235770A (enrdf_load_stackoverflow)