GB740886A - Improvements in or relating to the production of polymers from aromatic compounds - Google Patents

Improvements in or relating to the production of polymers from aromatic compounds

Info

Publication number
GB740886A
GB740886A GB20347/51A GB2034751A GB740886A GB 740886 A GB740886 A GB 740886A GB 20347/51 A GB20347/51 A GB 20347/51A GB 2034751 A GB2034751 A GB 2034751A GB 740886 A GB740886 A GB 740886A
Authority
GB
United Kingdom
Prior art keywords
polymers
production
xylene
steam
relating
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
GB20347/51A
Inventor
Michael Mojzesz Szwarc
Alec Norman Roper
Herbert Max Emil Steiner
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.)
PETROCARBON Ltd
Original Assignee
PETROCARBON Ltd
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 PETROCARBON Ltd filed Critical PETROCARBON Ltd
Priority to GB20347/51A priority Critical patent/GB740886A/en
Priority to CH317130D priority patent/CH317130A/en
Priority to US306939A priority patent/US2769786A/en
Priority to DEP8255A priority patent/DE930045C/en
Publication of GB740886A publication Critical patent/GB740886A/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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
    • 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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • 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
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
    • C08G61/025—Polyxylylenes
    • 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
    • C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
    • C08G2261/34—Monomer units or repeat units incorporating structural elements in the main chain incorporating partially-aromatic structural elements in the main chain
    • C08G2261/342—Monomer units or repeat units incorporating structural elements in the main chain incorporating partially-aromatic structural elements in the main chain containing only carbon atoms
    • C08G2261/3424—Monomer units or repeat units incorporating structural elements in the main chain incorporating partially-aromatic structural elements in the main chain containing only carbon atoms non-conjugated, e.g. paracyclophanes or xylenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyethers (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

In the production of polymers by the processes described in Specifications 650,947, 673,651, 673,652 and 718,106, the pyrolysis is carried out in the presence of steam. The pressure of the mixture of steam and vapour should not exceed 200 mm. Hg absolute. Superheated steam may be used to supply part of the heat required for pyrolysis. Examples describe pyrolysing (1), (6) and (7) p-xylene, (2) chloro-p-xylene, (3) 2,5-dimethyl pyrazine, (4) pseudocumene, (5) a mixture of p-xylene and pseudocumene, washing the cooled deposited spongy product with acetone, ether or benzene and drying to form flakes.
GB20347/51A 1951-08-29 1951-08-29 Improvements in or relating to the production of polymers from aromatic compounds Expired GB740886A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB20347/51A GB740886A (en) 1951-08-29 1951-08-29 Improvements in or relating to the production of polymers from aromatic compounds
CH317130D CH317130A (en) 1951-08-29 1952-08-28 Process for the manufacture of solid polymer products
US306939A US2769786A (en) 1951-08-29 1952-08-28 Production of polymers from aromatic and the like compounds
DEP8255A DE930045C (en) 1951-08-29 1952-08-29 Process for making solid polymeric products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20347/51A GB740886A (en) 1951-08-29 1951-08-29 Improvements in or relating to the production of polymers from aromatic compounds

Publications (1)

Publication Number Publication Date
GB740886A true GB740886A (en) 1955-11-23

Family

ID=10144441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20347/51A Expired GB740886A (en) 1951-08-29 1951-08-29 Improvements in or relating to the production of polymers from aromatic compounds

Country Status (4)

Country Link
US (1) US2769786A (en)
CH (1) CH317130A (en)
DE (1) DE930045C (en)
GB (1) GB740886A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085673B (en) * 1956-11-15 1960-07-21 Union Carbide Corp Process for the preparation of substituted poly-p-xylylenes
US2953546A (en) * 1957-03-11 1960-09-20 American Cyanamid Co Polymerization of solid monomers in suspension
US3117168A (en) * 1960-08-19 1964-01-07 Union Carbide Corp Alkylated di-p-xylylenes
US3149175A (en) * 1960-08-22 1964-09-15 Union Carbide Corp Preparation of di-para-xylylenes
US3297591A (en) * 1962-10-22 1967-01-10 Union Carbide Corp Process for the preparation of alpha-perfluoro-p-xylylene poluymers
US3342754A (en) * 1966-02-18 1967-09-19 Union Carbide Corp Para-xylylene polymers
US3288728A (en) * 1966-02-18 1966-11-29 Union Carbide Corp Para-xylylene copolymers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875317A (en) * 1932-09-06 Process for producing diphenyl
US2143509A (en) * 1935-07-19 1939-01-10 Monsanto Chemicals Preparation of benzene derivatives
GB650947A (en) * 1947-09-19 1951-03-07 Michael Mojzesz Szwarc The production of new polymers
US2524318A (en) * 1949-06-09 1950-10-03 Lilly Co Eli Process of producing larger arylalkanes from smaller ones

Also Published As

Publication number Publication date
US2769786A (en) 1956-11-06
CH317130A (en) 1956-11-15
DE930045C (en) 1955-07-07

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