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:
Sep. 09, 2008
Filed:
May. 22, 2003
Dietmar Mäder, Freiburg, DE;
Kurt Hoffmann, Weitenau-Steinen, DE;
Hans-werner Schmidt, Bayreuth, DE;
Dietmar Mäder, Freiburg, DE;
Kurt Hoffmann, Weitenau-Steinen, DE;
Hans-Werner Schmidt, Bayreuth, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
A composition containing (1) a crystalline polypropylene resin and (2) one or more β-nucleating agents of the formula (I), wherein R, Rand R, independently of one another, are C-Calkyl, C-Calkyl substituted by C-Calkylamino, di(C-Calkyl)amino, C-Calkyloxy or hydroxy; C-Calkenyl, C-Ccycloalkyl, C-CCycloalkyl substituted by 1, 2 or 3 C-Calkyl; cyclohexylmethyl; cyclohexylmethyl substituted by 1, 2 or 3 C-Calkyl; C-Ccycloalkenyl, C-Ccycloalkenyl substituted by 1, 2 or 3 C-Calkyl; phenyl substituted by 1, 2 or 3 radicals selected from the group consisting of C-C-oalkyl, C-Calkyloxy, hydroxy, halogen, trihalogenmethyl, trihalogenmethoxy, benzoyl, phenylamino, acylamino and phenylazo; C-Cphenylalkyl, C-Cphenylalkyl which is substituted on the phenyl by 1, 2 or 3 radicals selected from the group consisting of C-Calkyl, C-Calkoxy and hydroxy; naphthyl, naphthyl substituted by CCalkyl, adamantyl, or a 5 to 6 membered heterocyclic group; characterized in that the polypropylene resin has a content of β-form crystals of at least 10% calculated by means of the following equation β-form crystal content (%)=100×P,/(P+P+P+P) where Pto Pare respective peak heights (maxima) of the a-form and Pis a peak height (maximum) of the β-form determined by wide angle X-ray scattering.