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
GB12448/55A
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.)
Rohm and Haas Co
Original Assignee
Rohm and Haas 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 Rohm and Haas CofiledCriticalRohm and Haas Co
Publication of GB786769ApublicationCriticalpatent/GB786769A/en
C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
C14C3/00—Tanning; Compositions for tanning
C14C3/02—Chemical tanning
C14C3/04—Mineral tanning
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Chemical & Material Sciences
(AREA)
Chemical Kinetics & Catalysis
(AREA)
General Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Silicates, Zeolites, And Molecular Sieves
(AREA)
Abstract
Double silicates of zirconium and alkali metals are produced by sintering natural or artificial zirconium minerals or materials, e.g. beccarite or zircon sand, with an alkali metal carbonate, e.g. sodium, potassium or lithium carbonate. Specified compounds are Na2ZrSio5 and Na4Zr2Si3O12 but additional silica or zirconium oxide may be present.
GB12448/55A1954-05-181955-04-29Improvements in or relating to tannage compositions and procedure
ExpiredGB786769A
(en)
Procedures for the obtaining of soluble silicate fiber cartiliers resistant to alcalis and to acids (Machine-translation by Google Translate, not legally binding)