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:
Sep. 20, 2011
Filed:
Jan. 28, 2005
Jiannong Xu, Spartanburg, SC (US);
Jiang LI, Spartanburg, SC (US);
Benjamin W. Bolt, Easley, SC (US);
Kemper David Lake, Jr., Spartanburg, SC (US);
Jason Dean Sprinkle, Woodruff, SC (US);
Brian Michael Burkhart, Greenville, SC (US);
Keith Allen Keller, Spartanburg, SC (US);
Jiannong Xu, Spartanburg, SC (US);
Jiang Li, Spartanburg, SC (US);
Benjamin W. Bolt, Easley, SC (US);
Kemper David Lake, Jr., Spartanburg, SC (US);
Jason Dean Sprinkle, Woodruff, SC (US);
Brian Michael Burkhart, Greenville, SC (US);
Keith Allen Keller, Spartanburg, SC (US);
Milliken & Company, Spartanburg, SC (US);
Abstract
It is possible to improve significantly the optical performance of diacetal or DBS-based nucleating or clarifying agents using a co-additive. Haze is a measure of the lack of clarity in a thermoplastic or plastic material. A low level of haze is usually quite desirable, and nucleating/clarifying agents are designed to reduce the degree of haze in a plastic or thermoplastic material. A co-additive may be used in connection with a nucleating/clarifying agents in a polymer or copolymer to achieve even greater results in terms of improved clarity (reduced haze), or in terms of a higher crystallization temperature (Tc) of the polymer. A method for reducing haze in polymer articles using a co-additive composition in addition to nucleating and clarifying agents is disclosed.