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:
Nov. 23, 1993
Filed:
Apr. 06, 1992
Applicant:
Inventors:
Katsuyuki Tanabe, Tokyo, JP;
Masaharu Umebayashi, Mitaka, JP;
Atsushi Ugomori, Mitaka, JP;
Seiji Asaba, Mitaka, JP;
Assignee:
Nittetsu Mining Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
106401 ; 106400 ; 106413 ; 106416 ; 106417 ; 106437 ; 106447 ; 106456 ; 106460 ; 106463 ; 106465 ; 106467 ; 106469 ; 106471 ; 524297 ;
Abstract
In order to provide a filler for degradable plastics which can simplify the stages for producing a degradable plastic, give effective plastic-degradability, and stabilize the quality of the plastic article, the filler is used as a carrier substance and effective biodegradable and/or photodegradable components are adsorbed on the surfaces of the filler particles via a surface treating agent.