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:
Aug. 28, 2007
Filed:
Apr. 05, 2002
Peter Bons, Reichelsheim, DE;
Heinz Burock, Niedernhausen, DE;
Francisco Diez, Moerfelden-Walldorf, DE;
Andrea Paul, Mainhausen, DE;
Heiko Diehl, Sankt Martin, DE;
Peter Bons, Reichelsheim, DE;
Heinz Burock, Niedernhausen, DE;
Francisco Diez, Moerfelden-Walldorf, DE;
Andrea Paul, Mainhausen, DE;
Heiko Diehl, Sankt Martin, DE;
Chemetall GmbH, Frankfurt am Main, DE;
Abstract
The invention relates to a sealing mass with low density and improved tensile strength on the basis of sulfur-containing polymers such as on the basis of polysulfide, polyether or/and polytioether that has a density of not more than 1.3 g/cmaccording to ISO 2781 and a tensile strength of at least 1.9 N/mmaccording to ISO 37 after curing. The invention further relates to a ground mass based on sulfur-containing polymers for producing a sealing mass that comprises at least one long-chain linear polymer and at least one short-chain branched polymer having a content in trifunctional molecules, or/and at least one multifunctional cross-linker with a number of functional groups n≧3. The invention further relates to a method for producing a sealing mass according to which at least one base polymer is mixed with at least one adhesion promoter and the at least one light filler, especially hollow filler, is added, a vacuum with a remaining pressure of less than 50 mbar being maintained during incorporation of the light filler.