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:
May. 09, 2023
Filed:
Feb. 01, 2019
W. R. Grace & Co.-conn., Columbia, MD (US);
Amaia Montoya-Goni, Fulton, MD (US);
John Kaarto, Missouri City, TX (US);
Michelle Ni Paine, Columbia, MD (US);
Jose Manuel Rego, Fulton, MD (US);
Feng Gu, Ellicott City, MD (US);
Demetrius Michos, Clarksville, MD (US);
James Neil Pryor, West Friendship, MD (US);
W.R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
The present invention provides polymer compositions having improved corrosivity, color stability and clarity. Also disclosed is a process of preparing the polymers. The process may comprise incorporating into the polymer an acid neutralizing amount of an amorphous aluminum silicate. The amorphous aluminum silicate may be present in the polymer in an amount such that the polymer composition having a Corrosivity Index of less than 6. A refractive index of the amorphous aluminum silicate may be the same or substantially the same as a refractive index of the polymer.