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. 05, 1989
Filed:
Jan. 28, 1987
Applicant:
Inventors:
Michio Yamamoto, Iwakuni, JP;
Tsutomu Kiriyama, Iwakuni, JP;
Noriaki Sasaki, Iwakuni, JP;
Yoshitaka Sakamoto, Iwakuni, JP;
Kenji Ishimaru, Iwakuni, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21D / ;
U.S. Cl.
CPC ...
162-9 ; 1621573 ;
Abstract
A method for treating synthetic pulp particles, which includes treating a slurry of synthetic pulp particles having a Schopper-Riegler freeness of more than 30.degree.SR by a concentration provided with a rotary filter bed to lower the freeness not more than 30.degree.SR, water-washing the synthetic pulp particles in the state where the freeness is not more than 30.degree.SR, and dispersing the synthetic pulp particles in water to restore the freeness to more than 30.degree.SR.