GB777187A - Process for the production of porous bodies from polyethylene - Google Patents

Process for the production of porous bodies from polyethylene

Info

Publication number
GB777187A
GB777187A GB20993/55A GB2099355A GB777187A GB 777187 A GB777187 A GB 777187A GB 20993/55 A GB20993/55 A GB 20993/55A GB 2099355 A GB2099355 A GB 2099355A GB 777187 A GB777187 A GB 777187A
Authority
GB
United Kingdom
Prior art keywords
production
polyethylene
polythene
porous bodies
temperature
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
GB20993/55A
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie 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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB777187A publication Critical patent/GB777187A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A porous polyethylene article is made by compressing particulate polythene into a shape-retaining body, and then heating the body at a temperature between 100 DEG C. and the temperature (approximately 400 DEG C.) at which decomposition and/or gelation will occur. The particulate polythene may be in the form of powder, granules or fibre. The lower limit of pressure is about 3kg./sq. cm. Highly porous articles are obtained by low compression and low temperatures, e.g. 150 DEG or 175 DEG C., and a low degree of porosity by high pressure and temperatures of e.g. 250 DEG -300 DEG C. During heating the articles may be compressed. The production of a cylinder and a sheet is described.
GB20993/55A 1954-08-14 1955-07-20 Process for the production of porous bodies from polyethylene Expired GB777187A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DER14850A DE1156554B (en) 1954-08-14 1954-08-14 Process for the production of porous plastic bodies
DE1128228X 1954-08-14
DE777187X 1954-08-14

Publications (1)

Publication Number Publication Date
GB777187A true GB777187A (en) 1957-06-19

Family

ID=63798685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20993/55A Expired GB777187A (en) 1954-08-14 1955-07-20 Process for the production of porous bodies from polyethylene

Country Status (4)

Country Link
BE (1) BE540316A (en)
DE (1) DE1156554B (en)
FR (1) FR1128228A (en)
GB (1) GB777187A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981979A (en) * 1959-09-17 1961-05-02 Phillips Petroleum Co Fabrication of porous articles from polyethylene
US3051993A (en) * 1960-08-16 1962-09-04 Allied Chem Process for producing porous polyethylene articles
US3177274A (en) * 1961-08-29 1965-04-06 Glacier Co Ltd Method of making bearings and bearing material for such bearings
US3259677A (en) * 1957-09-04 1966-07-05 Zwick Franz Method of producing fluid-permeable shaped bodies

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE599486A (en) * 1960-01-29 1900-01-01

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE458829A (en) * 1942-12-04
GB679549A (en) * 1948-07-30 1952-09-17 British United Shoe Machinery Improvements in or relating to synthetic resinous materials
US2573639A (en) * 1949-12-02 1951-10-30 Myron A Coler Manufacture of porous articles from trifluorochloroethylene polymer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259677A (en) * 1957-09-04 1966-07-05 Zwick Franz Method of producing fluid-permeable shaped bodies
US2981979A (en) * 1959-09-17 1961-05-02 Phillips Petroleum Co Fabrication of porous articles from polyethylene
US3051993A (en) * 1960-08-16 1962-09-04 Allied Chem Process for producing porous polyethylene articles
US3177274A (en) * 1961-08-29 1965-04-06 Glacier Co Ltd Method of making bearings and bearing material for such bearings

Also Published As

Publication number Publication date
BE540316A (en) 1900-01-01
FR1128228A (en) 1957-01-03
DE1156554B (en) 1963-10-31

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