GB429728A - Improvements in or relating to a process of making leather-rubber material - Google Patents

Improvements in or relating to a process of making leather-rubber material

Info

Publication number
GB429728A
GB429728A GB27158/34A GB2715834A GB429728A GB 429728 A GB429728 A GB 429728A GB 27158/34 A GB27158/34 A GB 27158/34A GB 2715834 A GB2715834 A GB 2715834A GB 429728 A GB429728 A GB 429728A
Authority
GB
United Kingdom
Prior art keywords
acid
leather
latex
added
aluminium sulphate
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
GB27158/34A
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.)
International Latex Processes Ltd
Original Assignee
International Latex Processes 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 International Latex Processes Ltd filed Critical International Latex Processes Ltd
Publication of GB429728A publication Critical patent/GB429728A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dermatology (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

In the manufacture of material of leather and rubber by mixing leather fibres with an aqueous dispersion of negatively charged rubber particles, the pH value is maintained below 7,8, e.g. between 4,2 and 7,8, during the mixing operation. A small amount of a di- or trivalent cation material, e.g. zinc chloride or aluminium sulphate may be added to the leather some time before the latex. The pH may be maintained by addition of acid, and an acid material such as aluminium sulphate or acetic acid may be added after the latex to complete its precipitation. The latex may be alkaline, in which the ammonia content may have been reduced by air-blowing or treatment with formaldehyde or silica gel, or may be acid, prepared for example as described in Specification 288,268, [Class 70], and may be natural or artificial, normal or concentrated, vulcanized or unvulcanized. Other constituents, such as cellulose from cotton or wood pulp, colouring matter, zinc oxide, vulcanizing agents or accelerators, or anti-oxidants may be added.
GB27158/34A 1933-10-10 1934-09-21 Improvements in or relating to a process of making leather-rubber material Expired GB429728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US429728XA 1933-10-10 1933-10-10

Publications (1)

Publication Number Publication Date
GB429728A true GB429728A (en) 1935-06-05

Family

ID=21924754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27158/34A Expired GB429728A (en) 1933-10-10 1934-09-21 Improvements in or relating to a process of making leather-rubber material

Country Status (5)

Country Link
BE (1) BE405620A (en)
DE (1) DE754358C (en)
FR (1) FR779773A (en)
GB (1) GB429728A (en)
NL (1) NL38840C (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB247089A (en) * 1925-08-04 1926-02-11 Antonio Ferretti Process for the regeneration of hides, leather and the like from cuttings and leather waste
GB315413A (en) * 1928-07-14 1930-10-08 Invenzioni Brevetti Soc Improvements in or relating to the manufacture of artificial leather
FR675166A (en) * 1928-07-14 1930-02-06 Invenzioni Brevetti Anonima So Artificial leather and its manufacturing process
FR700287A (en) * 1929-07-05 1931-02-26 Invenzioni Brevetti Anonima So Improvements in the manufacture of artificial leather
GB360017A (en) * 1929-11-29 1931-10-29 Invenzioni Brevetti Anonima To Improvements in or relating to the making of sheet material from fibres produced from hides or skins
FR698386A (en) * 1929-11-29 1931-01-30 Invenzioni Brevetti Anonima So Compensated artificial leather and method and apparatus for its manufacture
GB365564A (en) * 1929-12-30 1932-01-21 Invenzioni Brevetti Anonima To Treatment of animal fibres
US1827356A (en) * 1929-12-30 1931-10-13 Invenzioni Brevetti Anonima To Treatment of animal fibers
AT131246B (en) * 1930-07-03 1933-01-10 Koetitzer Ledertuch Und Wachst Stiff caps for footwear.
FR767590A (en) * 1933-05-20 1934-07-19
GB447054A (en) * 1933-11-18 1936-05-06 Bawa Sohlenindustrie A method and device for producing pressed artificial sheet material of a fibrous nature

Also Published As

Publication number Publication date
DE754358C (en) 1953-02-09
NL38840C (en)
FR779773A (en) 1935-04-12
BE405620A (en)

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