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:
Dec. 31, 2019
Filed:
Dec. 26, 2013
Kurita Water Industries Ltd., Nakano-ku, Tokyo, JP;
Gun Ei Chemical Industry Co., Ltd., Takasaki-shi, Gunma, JP;
Satoshi Wada, Atsugi, JP;
Yuko Okusa, Sagamihara, JP;
Chigusa Taguchi, Saitama, JP;
Yukio Abe, Takasaki, JP;
Michiyasu Yamazaki, Takasaki, JP;
KURITA WATER INDUSTRIES LTD., Nakano-ku, Tokyo, JP;
GUN EI CHEMICAL INDUSTRY CO., LTD., Takasaki-shi, Gunma, JP;
Abstract
Provided are a pitch-formation suppressor and the like which can be widely applied independently of the substance that causes a pitch and of the situation to generate a pitch in a paper manufacturing process, and which can effectively suppress and prevent the troubles due to the pitch, such as foreign spots and defects in a paper, breakage of a paper, and lowering of workability. This pitch-formation suppressor comprises an alkaline solution in which a phenol resin and/or a modified phenol resin is dissolved, or an acid solution in which a phenol resin and/or a modified phenol resin is dissolved.