Title:
LIQUID-CRYSTALLINE RESIN COMPOSITION FOR INJECTION MOLDING, MOLDED OBJECT OBTAINED BY MOLDING THE RESIN COMPOSITION, AND CAMERA MODULE COMPRISING THE MOLDED OBJECT
Document Type and Number:
WIPO Patent Application WO/2010/050327
Kind Code:
A1
Abstract:
Ultrasonic cleaning itself for cleaning a molded object of a liquid-crystalline resin is known to fibrillate the surface of the molded object and to be causative of the generation of new debris (dust). It is also known that adhesion of the fine dust to the molded object reduces the optical characteristics and other performances of the molded object. In order to prevent such performance decreases in a molded object, a technique is provided by which a molded object containing a liquid-crystalline resin is inhibited from suffering surface fibrillation even when subjected to ultrasonic cleaning.
A molded object obtained by injection-molding a liquid-crystalline resin composition containing silica having an average primary-particle diameter of 5 µm or smaller is regulated so that the difference between the surface roughness (Ra) of the molded object and the surface roughness (Ra) of the mold falls in the range not larger than 0.1 mm. The silica to be used is preferably silica having an average primary-particle diameter of 0.7 µm or smaller.
Inventors:
FUKATSU HIROKI (JP)
SEITOH HIROMITSU (JP)
WATANABE KAZUFUMI (JP)
SEITOH HIROMITSU (JP)
WATANABE KAZUFUMI (JP)
Application Number:
PCT/JP2009/066897
Publication Date:
May 06, 2010
Filing Date:
September 29, 2009
Export Citation:
Assignee:
POLYPLASTICS CO (JP)
FUKATSU HIROKI (JP)
SEITOH HIROMITSU (JP)
WATANABE KAZUFUMI (JP)
FUKATSU HIROKI (JP)
SEITOH HIROMITSU (JP)
WATANABE KAZUFUMI (JP)
International Classes:
C08L101/00; B29C45/00; C08J5/00; C08K3/36; G03B17/02
Foreign References:
| JP2003192878A | 2003-07-09 | |||
| JP2002138187A | 2002-05-14 | |||
| JP2006249159A | 2006-09-21 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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