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:
Oct. 04, 2011
Filed:
Apr. 25, 2008
Kenji Kimura, Toyonaka, JP;
Hiroshi Kajikuri, Toyonaka, JP;
Kenji Kimura, Toyonaka, JP;
Hiroshi Kajikuri, Toyonaka, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
An object of the present invention is to provide a low-dusting additive composition which can improve thermal coloration resistance of a thermoplastic resin. This object is achieved by a granular additive composition containing 5 to 70% by weight of fatty calcium and 5 to 50% by weight of a sulfur-based compound represented by the formula (1), wherein an infrared absorption spectrum of the composition has a maximum absorption peak A in which absorbance in 1540 cmto 1543 cmis a maximum value, and a maximum absorption peak B in which absorbance in 1575 cmto 1583 cmis a maximum value, and the absorbances of the peak A and the peak B are a maximum value and a next maximum value in 1540 cmto 1583 cm,(R—Y—S—CHCO)—Z  (1)where Rrepresents an alkyl group, Y represents a single bond, or a -CHCO— group, m represents an integer of 1 to 4, and Z represents an alcohol residue.