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:
Jul. 01, 2003
Filed:
Jan. 26, 2001
Masami Kita, Kobe, JP;
Hiroshi Sagane, Sakai, JP;
Takashi Matsumoto, Matsudo, JP;
Kazuhiko Saeki, Himeji, JP;
Daicel Chemical Industries, Ltd., Osaka, JP;
Abstract
A resin composition capable of laser marking according to the present invention includes a polyolefin resin in combination with a laser-sensitive component such as a carbon black or metallic compound white pigment and a dispersing aid such as a higher fatty acid compound. The polyolefin resin includes, for example, a polypropylene. The resin composition may further include about 0.5 to 30 parts by weight of an elastomer relative to 100 parts by weight of the polyolefin resin. By irradiating an surface of a molded article obtained from the resin composition with a laser, a mark having a sharp and uniform contrast can be formed on the surface of the molded article.