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:
Feb. 25, 2003
Filed:
Dec. 22, 1999
Ramesh Srinivasan, Simpsonville, SC (US);
BBA Nonwovens Simpsonville, Inc., Simpsonville, SC (US);
Abstract
A nonwoven fabric with UV stability having a layer of meltblown fibers sandwiched between first and second layers of spunbonded fibers wherein each layer includes a base resin selected from the group consisting of polypropylene and polyethylene; combined with melt processable additives which are a mixture of (i) at least two hindered amine light stabilizers; (ii) a processing aid selected from the group consisting of hydroxyl amines and phosphites; and (iii) a carrier resin selected from the group consisting of polypropylene and polyethylene. Other melt processable additives include pigments which are added to provide the desired color in the resulting fabric layer.