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. 05, 2018
Filed:
Oct. 15, 2013
Arkema France, Colombes, FR;
Robert J. Barsotti, Drexel Hill, PA (US);
Robert J. Barsotti, Newtown Square, PA (US);
Noah E. Macy, Royersford, PA (US);
Mark A. Aubart, West Chester, PA (US);
Robert A. Wanat, Langhorne, PA (US);
Paul D. Fellenger, Denver, PA (US);
Florence Mehlmann, Berwyn, PA (US);
Thomas F. Roland, Zionsville, PA (US);
Arkema France, Colombes, FR;
Abstract
The invention relates to impact-modified, thermoplastic compositions, where the measured refractive index difference between the impact modifier particles and the matrix composition is greater than 0.008 units, yet a blend of the impact modifier particles in the matrix produces a transparent composition. The impact modifier particles are preferably impact modifier composite particles, being intimately blended with one or more polymeric process aids or dispersing aids. The polymeric process aids are physically or chemically attached to the impact modifier particles, forming composite particles that allow for facile powder isolation. The impact modifier composite particles provide improved physical, chemical, and/or rheological properties to the thermoplastic composition. Preferably the impact modifier particles of the invention are core-shell impact modifiers.