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:
Jul. 20, 1982
Filed:
Oct. 17, 1980
Applicant:
Inventors:
Cyril F Drake, Harlow, GB;
Francesca M Shreeve, Harlow, GB;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C08K / ;
U.S. Cl.
CPC ...
525337 ; 128 / ; 26099811 ; 524-5 ; 433228 ; 501 49 ;
Abstract
A range of titano-borate glass compositions e.g. for use as cross linking agents in the preparation of polycarboxylic acid cements. The glass may contain one or more further metal oxides, for example calcium and/or zinc, and typically comprises 25-40 mole % calcium, 45-65 mole % boric oxide and up to 15 mole % titanium dioxide. The specification also describes the preparation of polycarboxylic acid, typically polyacrylic acid, cements incorporating the glasses.