GB741133A - An improved gas expanded material and process for preparing the same - Google Patents

An improved gas expanded material and process for preparing the same

Info

Publication number
GB741133A
GB741133A GB2104652A GB2104652A GB741133A GB 741133 A GB741133 A GB 741133A GB 2104652 A GB2104652 A GB 2104652A GB 2104652 A GB2104652 A GB 2104652A GB 741133 A GB741133 A GB 741133A
Authority
GB
United Kingdom
Prior art keywords
mixture
expanded material
preparing
same
improved gas
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
GB2104652A
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.)
MARK MELLALIEU HEYWOOD
MICHAEL WILLIAM DAVIES
SORBO Ltd
Original Assignee
MARK MELLALIEU HEYWOOD
MICHAEL WILLIAM DAVIES
SORBO 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 MARK MELLALIEU HEYWOOD, MICHAEL WILLIAM DAVIES, SORBO Ltd filed Critical MARK MELLALIEU HEYWOOD
Priority to GB2104652A priority Critical patent/GB741133A/en
Publication of GB741133A publication Critical patent/GB741133A/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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)

Abstract

Expanded material is prepared by mixing with an organic plastic material, compounding and stabilizing ingredients and, as blowing agent, a mixture of urea hydrogen peroxide and a fatty acid, e.g. sebacic acid, and subjecting the mixture to heat and pressure. Polyvinyl chloride is the specified plastic and it is preferably used as a slurry or dough in toluene, acetone, or methyl ethyl ketone. Specified compounding ingredients are lead or calcium stearate, pigments, lead carbonate and tricresyl phosphate. The blowing is preferably carried out at 50-60 DEG C., followed by a rise to 150 DEG C. to fuse the mixture.
GB2104652A 1952-08-21 1952-08-21 An improved gas expanded material and process for preparing the same Expired GB741133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2104652A GB741133A (en) 1952-08-21 1952-08-21 An improved gas expanded material and process for preparing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2104652A GB741133A (en) 1952-08-21 1952-08-21 An improved gas expanded material and process for preparing the same

Publications (1)

Publication Number Publication Date
GB741133A true GB741133A (en) 1955-11-30

Family

ID=10156268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2104652A Expired GB741133A (en) 1952-08-21 1952-08-21 An improved gas expanded material and process for preparing the same

Country Status (1)

Country Link
GB (1) GB741133A (en)

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