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:
Jan. 03, 1978
Filed:
Sep. 25, 1975
Robert A van Brederode, Baytown, TX (US);
Exxon Research & Engineering Co., Linden, NJ (US);
Abstract
A three component LTHA stabilizer system of distearyl thiodipropionate, tris(3,5-di-t-butyl-4-hydroxybenzyl isocyanurate, sold under the trademark Goodrite 3114 and cyclic neopentanetetrayl bis(octadecylphosphite), sold under the trademark Weston 618 particularly suitable for glass fiber reinforced homopolypropylene or acrylic acid grafted propylene polymers. Key parts of the invention include well defined ratios of the thioester and phenolic components and good dispersion of the glass fiber to achieve the desired stability. The stabilizer system is good for other acrylic acid grafted polypropylene polymers which include impact modifiers. Other grafting monomers can be substituted for the acrylic acid.