DE3060086D1 - Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with lewis acid catalysts intercalated in graphite - Google Patents

Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with lewis acid catalysts intercalated in graphite

Info

Publication number
DE3060086D1
DE3060086D1 DE8080100708T DE3060086T DE3060086D1 DE 3060086 D1 DE3060086 D1 DE 3060086D1 DE 8080100708 T DE8080100708 T DE 8080100708T DE 3060086 T DE3060086 T DE 3060086T DE 3060086 D1 DE3060086 D1 DE 3060086D1
Authority
DE
Germany
Prior art keywords
intercalated
graphite
preparation
lewis acid
acid catalysts
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
DE8080100708T
Other languages
English (en)
Inventor
Edward Thomas Shawl
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.)
Atlantic Richfield Co
Original Assignee
Atlantic Richfield 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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Application granted granted Critical
Publication of DE3060086D1 publication Critical patent/DE3060086D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE8080100708T 1979-02-12 1980-02-12 Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with lewis acid catalysts intercalated in graphite Expired DE3060086D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/011,300 US4202986A (en) 1979-02-12 1979-02-12 Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with Lewis acid catalysts intercalated in graphite

Publications (1)

Publication Number Publication Date
DE3060086D1 true DE3060086D1 (en) 1982-01-28

Family

ID=21749768

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080100708T Expired DE3060086D1 (en) 1979-02-12 1980-02-12 Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with lewis acid catalysts intercalated in graphite

Country Status (5)

Country Link
US (1) US4202986A (de)
EP (1) EP0014482B1 (de)
JP (1) JPS55115862A (de)
CA (1) CA1136156A (de)
DE (1) DE3060086D1 (de)

Families Citing this family (9)

* 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
DE2931554A1 (de) * 1979-08-03 1981-02-26 Basf Ag Verfahren zur herstellung von methylen-bis-phenyl-carbaminsaeureestern und polymethylen-polyphenylcarbaminsaeureestern
JPS57154159A (en) * 1981-03-16 1982-09-22 Asahi Chem Ind Co Ltd Introduction of methylene group to n-phenylcarbamic acid ester
US4415745A (en) * 1981-08-04 1983-11-15 Exxon Research & Engineering Co. Process for the preparation of aromatic carbamates and isocyanates
NL8700156A (nl) * 1987-01-23 1988-08-16 Doornes Transmissie Bv Drijfriem, dwarselement voor een drijfriem en werkwijze en inrichting voor de vervaardiging daarvan.
JPH0358965A (ja) * 1989-07-27 1991-03-14 Mitsui Petrochem Ind Ltd Ｎ―フェニルカルバメート類の縮合方法
US5206412A (en) * 1992-02-07 1993-04-27 Arco Chemical Technology, L.P. Selective process for the preparation of diphenylmethane diisocyanate precursors
DE10162532C1 (de) * 2001-12-19 2003-10-09 Hilti Ag Expandierbare Graphit-Intercalationsverbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung
CA2469534A1 (en) * 2003-06-18 2004-12-18 Hilti Aktiengesellschaft The use of thermally expandable graphite intercalation compounds for producing fire-protection seals and method for their production

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461352A (en) * 1935-07-11 1937-02-11 Deutschen Celluloid Fabrik Manufacture of condensation products and of lacquers and plastic masses therefrom
US2946768A (en) * 1957-08-12 1960-07-26 Bayer Ag Condensation products of carbamic acid esters
US4014914A (en) * 1970-01-12 1977-03-29 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates
PT68605A (en) * 1977-10-03 1978-10-01 Atlantic Richfield Co Process for the preparations of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by theacid rearrangement of an (alkoxycarbonyl) phenylaminomethylphenyl compound
US4146727A (en) * 1977-10-03 1979-03-27 Atlantic Richfield Company Process for the preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by the acid rearrangement of an (alkoxycarbonyl) phenylaminomethylphenyl compound
US4162362A (en) * 1978-10-20 1979-07-24 Atlantic Richfield Company Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates

Also Published As

Publication number Publication date
US4202986A (en) 1980-05-13
JPS55115862A (en) 1980-09-06
EP0014482B1 (de) 1981-11-25
EP0014482A1 (de) 1980-08-20
CA1136156A (en) 1982-11-23

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee