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. 23, 2008
Filed:
Apr. 13, 2004
Ulrich Weidmann, Basel, CH;
Ulrich Weidmann, Basel, CH;
Hunstman Advanced Materials Americas Inc., The Woodlands, TX (US);
Abstract
Compounds of the general formulae (I) and (II): where R, Rand Reach independently of one another are H; Calkyl; Ccycloalkyl, optionally substituted by Calkyl groups; Ccycloalkyl-alkyl, optionally substituted by Calkyl groups; C, aryl, optionally substituted by 1-3 Calkyl groups, —CN, Hal, OH, or Calkoxy; Cphenylalkyl, optionally substituted by 1-3 Calkyl groups; Calkenyl; Calkynyl; or aromatic or aliphatic Cacyl; R, R, R, R, R, and Reach independently of one another are H; Calkyl, Ccycloalkyl, optionally substituted by Calkyl groups; Ccycloalkyl-alkyl, optionally substituted by Calkyl groups; Caryl, optionally substituted by 1-3 Calkyl groups; Cphenylalkyl, optionally substituted by 1-3 Calkyl groups; Calkenyl; Calkynyl; Calkoxy; or OH; for formula (1) R is Calkyl; Ccycloalkyl, optionally substituted by Calkyl groups; Ccycloalkyl-alkyl; optionally substituted by Calkyl groups; Caryl, optionally substituted by 1-3 Calkyl groups; Cphenylalkyl, optionally substituted by 1-3 Calkyl groups; Calkenyl; or Calkynyl; and for formula (II) n=2-12; as accelerators in curable epoxy resin compositions which are used as a compression moulding compound, sinter powder, encapsulating system, or casting resin, or for producing prepregs and laminates having very good interlaminar shear strength values using the resin infusion method, wet layup method and injection methods, for producing components, especially components of large surface area.