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. 27, 1996
Filed:
Mar. 31, 1995
Douglas Williams, San Rafael, CA (US);
Jeff Shea, San Francisco, CA (US);
Michael S Cork, Richardson, TX (US);
Other;
Abstract
Sealant compositions for sealing the circumferential joint between pairs of dual-laiminate fume duct sections, and a joint sealing method enabling strong bonding between the sealant and phenolic/glass and vinyl ester surfaces without sanding mating surfaces. A first preferred sealant consists of a resin including by weight: 20.0% Epon 862 novolac epoxy resin; 30.0% SU-2.5 Epon novolac epoxy resin; 20.0% Heloxy 48; 19.5% Epon 826 bisphenol A resin; 10.0% Heloxy 505; and 0.5% silane, and a hardener including: two cycloaliphatic amines, 94.0%; and an aromatic tertiary amine, 6.0%. A second preferred sealant consists of a resin including by weight: 39.5% aromatic epoxide resin; 40.0% Heloxy 48; 20.0% SU-2.5 Epon novolac epoxy resin; and 0.5% silane, and a hardener including: two cycloaliphatic amines, 94.0%; an aromatic tertiary amine, 5.5%; and an amino silane, 0.5%.