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. 24, 2007
Filed:
Jul. 08, 2003
Mark E. Ragsdale, Duncan, SC (US);
Philip T. Radford, Spartanburg, SC (US);
Mark E. Ragsdale, Duncan, SC (US);
Philip T. Radford, Spartanburg, SC (US);
Milliken & Company, Spartanburg, SC (US);
Abstract
Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.