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:
Jun. 14, 2005
Filed:
Aug. 08, 2002
Ying Liang, Lake Zurich, IL (US);
Tie Lan, Lake Zurich, IL (US);
Scott Omachinski, Mount Prospect, IL (US);
Jae Whan Cho, Seosan Si, KR;
Ying Liang, Lake Zurich, IL (US);
Tie Lan, Lake Zurich, IL (US);
Scott Omachinski, Mount Prospect, IL (US);
Jae Whan Cho, Seosan Si, KR;
AMCOL International Corporation, Arlington Heights, IL (US);
Abstract
Nylon-intercalated (concentrate nylon), layered silicates, in concentrated form, containing at least 6% to about 40% by weight layered silicate, preferably about 8% to about 30% by weight layered silicate, intercalated with a nylon that is polymerized while in contact with the clay, during ring-opening polymerization of the nylon reactants (monomers) and melt processing. The in-situ nylon polymerization reaction to form the concentrate nylon is continued until the number average molecular weight (Mn) of the nylon is about 25,000 or less, preferably 15,000 or less, more preferably about 5,000-10,000, to maintain melt processability of the resulting concentrate.