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:
Jul. 17, 1984
Filed:
Sep. 13, 1982
Applicant:
Inventor:
Charles H Keith, Charlotte, NC (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428369 ; 428372 ; 428400 ; 428401 ; 162146 ; 1621571 ; 1621574 ; 1621575 ; 1621576 ;
Abstract
A process is disclosed for the preparation of highly pigmented fibrets, the product produced thereby and paper products containing the highly pigmented fibret. The fibret has a surface area of from 15 to 30 square meters per gram and comprises a polymeric host having an index of refraction of not more than 1.5 containing from 40 to 75 percent by weight of an inorganic light scattering pigment having an index of refraction of from 1.5 to 3.0. The fibrets are found to impart paper opacification to the same degree as wholly inorganic opacified paper products without many of the problems commonly associated with such prior art products.