GB901664A - Non-coalescing particles of rubber-like polymers - Google Patents

Non-coalescing particles of rubber-like polymers

Info

Publication number
GB901664A
GB901664A GB4059559A GB4059559A GB901664A GB 901664 A GB901664 A GB 901664A GB 4059559 A GB4059559 A GB 4059559A GB 4059559 A GB4059559 A GB 4059559A GB 901664 A GB901664 A GB 901664A
Authority
GB
United Kingdom
Prior art keywords
wax
particles
coated
hydrocarbon
high melting
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
GB4059559A
Inventor
William Ernest Thomas
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.)
MIDDLESEX OIL AND CHEMICAL WOR
Original Assignee
MIDDLESEX OIL AND CHEMICAL WOR
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 MIDDLESEX OIL AND CHEMICAL WOR filed Critical MIDDLESEX OIL AND CHEMICAL WOR
Priority to GB4059559A priority Critical patent/GB901664A/en
Publication of GB901664A publication Critical patent/GB901664A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/12Powdering or granulating
    • C08J3/124Treatment for improving the free-flowing characteristics
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00Characterised by the use of unspecified rubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Particles of a synthetic rubber polymer are coated with one or more powdered hydrocarbon waxes to reduce the tendency of said particles to coalesce. The synthetic rubber polymer may be polyisobutylene or a copolymer of isobutylene and isoprene that is butyl rubber. The hydrocarbon wax which may be a high melting point microcrystalline petroleum wax or high melting point Fischer-Tropsch wax, may have an I.P. congealing point in the range 180 DEG to 210 DEG F. and an I.P. needle penetration in the range 1 to 14. The particles may be coated by stirring or tumbling them in the hydrocarbon wax. The coated particles may be incorporated in a wax blend comprising a natural wax such as Montan, Carnauba or Candelilla, a synthetic ester wax or a hardened oil such as hydrogenated castor oil. The wax blends incorporating the said coated particles may be used as coating and laminating agents for cellulosic material such as paper.
GB4059559A 1959-11-30 1959-11-30 Non-coalescing particles of rubber-like polymers Expired GB901664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4059559A GB901664A (en) 1959-11-30 1959-11-30 Non-coalescing particles of rubber-like polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4059559A GB901664A (en) 1959-11-30 1959-11-30 Non-coalescing particles of rubber-like polymers

Publications (1)

Publication Number Publication Date
GB901664A true GB901664A (en) 1962-07-25

Family

ID=10415662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4059559A Expired GB901664A (en) 1959-11-30 1959-11-30 Non-coalescing particles of rubber-like polymers

Country Status (1)

Country Link
GB (1) GB901664A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801093A2 (en) * 1996-04-08 1997-10-15 The Goodyear Tire & Rubber Company Free-flowing crumb rubber composition
WO2010100083A1 (en) 2009-03-04 2010-09-10 Dsm Ip Assets B.V. Process for preparing free flowing epdm particles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801093A2 (en) * 1996-04-08 1997-10-15 The Goodyear Tire & Rubber Company Free-flowing crumb rubber composition
EP0801093A3 (en) * 1996-04-08 1998-07-01 The Goodyear Tire & Rubber Company Free-flowing crumb rubber composition
WO2010100083A1 (en) 2009-03-04 2010-09-10 Dsm Ip Assets B.V. Process for preparing free flowing epdm particles

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