CA1120051A - Process for preparing polymethylene polyphenyl polycarbamates - Google Patents

Process for preparing polymethylene polyphenyl polycarbamates

Info

Publication number
CA1120051A
CA1120051A CA000341827A CA341827A CA1120051A CA 1120051 A CA1120051 A CA 1120051A CA 000341827 A CA000341827 A CA 000341827A CA 341827 A CA341827 A CA 341827A CA 1120051 A CA1120051 A CA 1120051A
Authority
CA
Canada
Prior art keywords
acid
reaction
ester
phenyl carbamic
carbamic acid
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
Application number
CA000341827A
Other languages
English (en)
French (fr)
Inventor
Katsuharu Miyata
Seiji Hasegawa
Shinobu Aoki
Isao Hara
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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
Priority claimed from JP15372778A external-priority patent/JPS5581850A/ja
Priority claimed from JP15414378A external-priority patent/JPS5581851A/ja
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Application granted granted Critical
Publication of CA1120051A publication Critical patent/CA1120051A/en
Expired 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
    • C08G18/701—Compounds forming isocyanates or isothiocyanates in situ

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)
CA000341827A 1978-12-14 1979-12-13 Process for preparing polymethylene polyphenyl polycarbamates Expired CA1120051A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP15372778A JPS5581850A (en) 1978-12-14 1978-12-14 Preparation of polymethylene polyphenyl polycarbamate
JP153727/1978 1978-12-14
JP15414378A JPS5581851A (en) 1978-12-15 1978-12-15 Preparation of polymethylene polyphenyl polycarbamate
JP154143/1978 1978-12-15

Publications (1)

Publication Number Publication Date
CA1120051A true CA1120051A (en) 1982-03-16

Family

ID=26482265

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000341827A Expired CA1120051A (en) 1978-12-14 1979-12-13 Process for preparing polymethylene polyphenyl polycarbamates

Country Status (6)

Country Link
CA (1) CA1120051A (xx)
DE (1) DE2950386C2 (xx)
FR (1) FR2444057B1 (xx)
GB (1) GB2044252B (xx)
IT (1) IT1126563B (xx)
NL (1) NL185077C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699994A (en) * 1985-09-18 1987-10-13 Nippon Kokan Kabushiki Kaisha Method of manufacturing diphenylmethane dicarbamic acid diesters

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5612357A (en) * 1979-07-09 1981-02-06 Mitsui Toatsu Chem Inc Production of polymethylenepolyphenylpolycarbamate
DE3013907A1 (de) * 1980-04-11 1981-10-22 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von methylen-bis-phenylcarbaminsaeureestern und polymethylen-polyphenylcarbamidsaeureestern
US4552974A (en) * 1982-12-07 1985-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing diphenylmethane dicarbamates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042891B (de) * 1956-08-16 1958-11-06 Bayer Ag Verfahren zur Herstellung von stickstoffhaltigen Kondensationsprodukten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699994A (en) * 1985-09-18 1987-10-13 Nippon Kokan Kabushiki Kaisha Method of manufacturing diphenylmethane dicarbamic acid diesters

Also Published As

Publication number Publication date
DE2950386A1 (de) 1980-07-03
NL185077B (nl) 1989-08-16
FR2444057A1 (fr) 1980-07-11
GB2044252B (en) 1983-04-20
IT1126563B (it) 1986-05-21
IT7927992A0 (it) 1979-12-07
DE2950386C2 (de) 1987-02-05
GB2044252A (en) 1980-10-15
FR2444057B1 (fr) 1985-11-22
NL7908982A (nl) 1980-06-17
NL185077C (nl) 1990-01-16

Similar Documents

Publication Publication Date Title
EP0101832B1 (en) Tertiary aralkyl urethanes and isocyanates derived therefrom
CA1120051A (en) Process for preparing polymethylene polyphenyl polycarbamates
US4319018A (en) Process for producing polymethylene polyphenyl polycarbamates
EP0088223B1 (en) Manufacture of isocyanates
EP0016441B1 (en) A method for the preparation of a mixture of diphenyl methane dicarbamates and polymethylene polyphenyl carbamates
US4699994A (en) Method of manufacturing diphenylmethane dicarbamic acid diesters
EP0000464B1 (fr) Procédé de purification du mercaptobenzothiazole
JPS6320221B2 (xx)
US4307029A (en) Process for preparing polymethylene-polyphenyl polyisocyanates
FR2515640A1 (fr) Procede de fabrication d'isocyanates aromatiques par carbonylation des derives nitres en presence de catalyseurs supportes prepares a partir de complexes heteropolymetalliques
DE3518294C2 (de) Verfahren zur Herstellung von N-Benzyloxycarbonylaminosäuren, die eine zusätzliche Funktionalität enthalten
JPS59172450A (ja) 有機イソシアナ−トの品質改良方法
EP0032733B1 (en) Process for preparing polymethylene polyphenyl polycarbamates
DE3049627A1 (de) "verfahren zur herstellung von l-alkenylisocyanaten"
JPS6319507B2 (xx)
EP0140531A2 (en) An improved process for producing poly (vinyl acetals)
GB2039898A (en) Process for preparing polymethylene polyphenyl polycarbamates
EP0000478A1 (de) Verfahren zur Herstellung von Acyloinen
EP0164494B1 (en) System for conveying conical articles
EP0065289A1 (en) Process for the synthesis of trialkyl-tris(3,5-dialkyl-4-hydroxybenzyl) benzene
EP0031385A1 (en) Process for preparing polymethylenepolyphenyl polycarbamate
KR950012535B1 (ko) 4,4-메틸렌-비스-(n-페닐알킬카바메이트)의 선택적 제조방법
RU2058303C1 (ru) Способ получения смеси полифениленполиметиленполиизоцианатов
EP0349380A1 (fr) Nouveaux esters renfermant un groupement dithioacetal, leur préparation et leur application à la stabilisation des matières organiques
EP0406129A1 (fr) Procédé de préparation de méthylène di(phényluréthane)

Legal Events

Date Code Title Description
MKEX Expiry