The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 1980
Filed:
Dec. 27, 1978
Applicant:
Inventors:
Horst Scholze, Wurzburg, DE;
Helmut Schmidt, Hochberg, DE;
Assignee:
Fraunhofer-Gesellschaft, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528-5 ; 521 51 ; 521154 ; 528-8 ; 528-9 ; 528 12 ; 528 14 ; 528 16 ; 528 20 ; 528 21 ; 528 25 ; 528 29 ; 528 31 ; 528 32 ; 528 38 ; 528 39 ; 528 41 ; 528 42 ; 528 43 ; 2105002 ;
Abstract
A process for the production of silicic acid heteropolycondensates, wherein at least one hydrolysable silicic acid derivative; at least one substituted silane; optionally at least one functional silane and/or optionally at least one substantially involatile oxide soluble in the reaction medium or at least one compound forming a substantially involatile oxide are condensed in the presence of at least the quantity of water stoichiometrically required for hydrolysis and optionally in the presence of a condensation catalyst and/or a solvent. The polycondensates are useful in the production of membranes and adsorbents.