Patent ID: 7790841
Filing Date: 2010-09-07
Classification: B82Y,C08J,C08K,Y10T

Abstract:
1. A method for increasing the crystallization rate of engineering thermoplastics comprising, adding 0.5 to 10 wt. % of nanoparticles, from 1-1000 nm in size, to said thermoplastics, and dispersing said particles at a temperature above the melting temperature of the subject polymer, wherein said thermoplastics are semi-crystalline engineering thermoplastics of poly(ether-ether-ketones) (PEEK), poly(ether-ketone-ketones) (PEKK), poly(ether-ketones) (PEK), polyamids, polycarbonate (PC), polysulfones (PSU), polyamides, polyphenylene sulfides (PPS), polyethylene terephthalate (PET) or a combination of two or more thereof so as to provide enhanced crystalline behavior to said thermoplastics.