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. 26, 2010
Filed:
Mar. 28, 2005
Toshio Nagasaka, Aichia, JP;
Toshimi Yanai, Hiroshima, JP;
Hiroki Hatakeyama, Hiroshima, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a resin composition having excellent impact resistance and resistance to whitening by impact without deteriorating excellent transparency of a methacrylic resin. Specifically, an impact resistance modifier composed of a multilayered polymer having at least three layers, namely an innermost-layer polymer derived from an alkyl methacrylate, an intermediate-layer polymer derived from an alkyl acrylate and an outer-layer polymer having its Tg within the range of 20 to 80° C., wherein mass average particle diameter of the intermediate-layer polymer is 200 to 300 nm and the mass ratio of each layer is within an appropriate range, is blended with a methacrylic resin.