GB652254A - Improvements in and relating to methods of making spongy rubber material - Google Patents

Improvements in and relating to methods of making spongy rubber material

Info

Publication number
GB652254A
GB652254A GB25618/47A GB2561847A GB652254A GB 652254 A GB652254 A GB 652254A GB 25618/47 A GB25618/47 A GB 25618/47A GB 2561847 A GB2561847 A GB 2561847A GB 652254 A GB652254 A GB 652254A
Authority
GB
United Kingdom
Prior art keywords
rubber
lbs
leaching
water
grinding
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
GB25618/47A
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.)
Dayton Rubber Co
Original Assignee
Dayton Rubber 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 Dayton Rubber Co filed Critical Dayton Rubber Co
Publication of GB652254A publication Critical patent/GB652254A/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
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/044—Elimination of an inorganic solid phase
    • C08J2201/0444—Salts
    • C08J2201/0446—Elimination of NaCl only
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers

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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Spongy synthetic rubber is prepared by mixing crystals of water-soluble material, preferably sodium chloride, sugar or a soluble sulphate, with the rubber, vulcanizing the mixture, grinding the surface of the vulcanized product and removing the crystals by leaching with water under superatmospheric pressure, preferably of about 200 lbs. per square inch. The synthetic rubber may be neoprene, butadiene-acrylonitrile or butadiene-styrene copolymer, or a polysulphide rubber. The initial mixture preferably comprises from 200 to 250 lbs. water-soluble material to 100 lbs. of rubber. The Specification as open to inspection under Sect. 91 refers also to processes in which the grinding step is omitted, in which grinding takes place after leaching, and in which leaching is at atmospheric pressure. This subject-matter does not appear in the Specification as accepted.ALSO:Spongy natural or synthetic rubber is prepared by mixing crystals of water-soluble material, preferably sodium chloride, sugar or a soluble sulphate, with the rubber, vulcanizing the mixture, grinding the surface of the vulcanized product and removing the crystals by leaching with water under superatmospheric pressure, preferably of about 200 lbs. per square inch. The initial mixture preferably comprises from 200 to 250 lbs. water-soluble material to 100 lbs. of rubber. The Specification as open to inspection under Sect. 91 refers also to processes in which the grinding step is omitted, in which grinding takes place after leaching, and in which leaching is at atmospheric pressure. This subject-matter does not appear in the Specification as accepted.
GB25618/47A 1947-01-18 1947-09-19 Improvements in and relating to methods of making spongy rubber material Expired GB652254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US652254XA 1947-01-18 1947-01-18

Publications (1)

Publication Number Publication Date
GB652254A true GB652254A (en) 1951-04-18

Family

ID=22061191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25618/47A Expired GB652254A (en) 1947-01-18 1947-09-19 Improvements in and relating to methods of making spongy rubber material

Country Status (1)

Country Link
GB (1) GB652254A (en)

Similar Documents

Publication Publication Date Title
GB705344A (en) Improvements in method of compounding carbon black and rubber latex
GB652254A (en) Improvements in and relating to methods of making spongy rubber material
MY5300110A (en) Process for the preparation of aqueous dispersions of cyclized natural or synthetic rubber and of articles therefrom
GB795052A (en) Modifying the properties of the surface of silica aerogels
GB431575A (en) Improvements in or relating to the manufacture of goods of or containing sponge-likeor cellular rubber
GB479265A (en) Improvements in or relating to a method of making sponge rubber
GB178337A (en) Improvements in or relating to the preparation of preservative substances for rubberlatex
GB358584A (en) Improvements in or relating to cleaning compositions
GB217217A (en) Core for hollow rubber articles and method of making same
GB658296A (en) Improvements in or relating to the manufacture of microporous sheets of hard rubber
GB653316A (en) Improvements in and relating to the making of rollers especially for use in connection with printing and textile machinery
GB960880A (en) Improvements in or relating to the preparation and processing of natural and synthetic rubbers
GB355416A (en) Improvements in or relating to the manufacture of rubber goods of high quality
GB633662A (en) Improvements in or relating to golf club heads
GB704542A (en) Improvements in or relating to products from foamed rubber latex
GB1046796A (en) Process for the productionof homogeneous mixtures of rubber and silicic acid
AU152772B2 (en) Improvements in or relating tothe production of microporous rubber sheeting
GB605441A (en) Improvements in silicate plastics and methods of preparing them
GB259987A (en) Improvements in and relating to closure devices for bottles and other receptacles
GB645115A (en) Improvements in gas expanded material and method of making same
GB652457A (en) Improvements in a method of manufacturing latex articles and articles obtained thereby
ES202912A1 (en) A procedure for the manufacture of leather substitute and similar products (Machine-translation by Google Translate, not legally binding)
GB349280A (en) Process of making uniformly plastic rubber and product thereof
AU132922B2 (en) Improvements in and relating tothe manufacture of artificial aqueous dispersions of natural and synthetic rubbers rubber substitutes and rubberlike substances
AU3869150A (en) Improvements in or relating tothe production of microporous rubber sheeting