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:
Jan. 03, 1989
Filed:
Apr. 09, 1985
Jaap H Addink, Heemskerk, NL;
Christiaan M Beelen, Alkmaar, NL;
Adam Steen, Heemskerk, NL;
Hendrik M Verhoog, Bennebroek, NL;
Jurrie De Boer, Castricum, NL;
Hoogovens Groep B.V., , NL;
Abstract
In the manufacture of refractory bricks containing CaO, a mixture is formed of a refractory composition of a material containing CaO and a binder composition, and bricks are moulded from the mixture. To avoid hydration of the CaO and avoid softening of the bricks on heating up, the material containing CaO is selected from burned lime, burned dolomite and mixtures and the binder composition is present in an amount in the range 1 to 10% by weight based on the weight of the mixture and consists mainly of a thermosetting novolak type phenol resin composition and an anhydrous solvent consisting of at least one organic solvent present in an amount of less than 40% by weight based on the weight of the binder. The solvent composition is chosen to be of a chemical nature such that, at least during mixing of the refractory composition and the binder composition, it substantially does not react with the CaO.