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:
Dec. 16, 2014
Filed:
Jun. 12, 2009
Applicant:
Pierre-andre Butikofer, Wallisellen, CH;
Inventor:
Pierre-Andre Butikofer, Wallisellen, CH;
Assignee:
Sika Technology AG, Baar, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/40 (2006.01);
U.S. Cl.
CPC ...
C08G 59/4042 (2013.01);
Abstract
Polyamines A1 of formula (I) or (II). They can be easily synthesized from readily available raw materials and have no primary amino groups or only a low content of primary amino groups and thus exhibit hardly any blushing. Their viscosity is relatively low, compared with polyamine/polyepoxide adducts of the polyamine on which polyamine A1 is based. Thus epoxy resin compositions can be formulated that are free of benzyl alcohol and free of blushing.