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:
Jun. 02, 1992
Filed:
Apr. 20, 1990
Michelle M Berthet, Brussels, BE;
Brian R Trego, Dinas Powys, GB;
Hans-Juergen Wessely, Nivelles, BE;
Dow Corning S.A., Seneffe, BE;
Abstract
The specification describes and claims filled compositions, e.g. moisture curable sealant compositions which comprise 100 parts by weight of polymeric material comprising a mixture and/or a reaction product of a polydiorganosiloxane having silicon-bonded hydroxyl groups with a compound containing silicon-bonded alkoxy or alkoxyalkoxy groups, 50 to 200 parts by weight of finely divided filler and an additive which is a reaction product of an organic amine, an oxide, hydroxide, carbonate, bicarbonate or a mixture thereof with a sulphonic acid of the formula RSO.sub.3 H in which R represents a hydrocarbon group which may be halogenated. The additive is preferably a reaction product of the sulphonic acid and an oxide, hydroxide, carbonate or bicarbonate of magnesium, or calcium and the acid is preferably one in which R represents a group R'C.sub.6 H.sub.4 wherein R' represents an alkyl group having 6 to 18 carbon atoms, for example dodecylbenzenesulphonic acid. The filler is preferably an oxide, hydroxide, carbonate or bicarbonate of calcium, magnesium, barium or zinc or a mixture thereof and has a particle size in the range 0.05 to 5 microns.