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. 03, 1987
Filed:
May. 21, 1986
Applicant:
Inventor:
Bruce W Sands, Malvern, PA (US);
Assignee:
PQ Corporation, Valley Forge, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ;
U.S. Cl.
CPC ...
524450 ; 524586 ;
Abstract
Various type A zeolites can be combined with thermoplastic materials to provide antiblock and improved optical properties to films or sheets of said thermoplastic. The zeolites are of less than full hydration, and at least a portion of the sodium is replaced with multivalent ions such as calcium and magnesium. The zeolites can also be acid treated to provide zeolites that contain hydronium ions.