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. 16, 2002
Filed:
Dec. 29, 2000
Lein Phan, Mississauga, CA;
Rajeev Farwaha, Brampton, CA;
Apala Mukherjee, South Orange, NJ (US);
John S. Thomaides, Berkeley Heights, NJ (US);
National Starch and Chemical Investment Holding Corporation, New Castle, DE (US);
Abstract
A colloid composition is presented which contains an amphiphilic star polymer having potentially crosslinkable sites on the polymer backbone. The potentially crosslinkable site is either a sterically hindered silane monomer or an acetoacetoxy-containing monomer. When the crosslinkable site is a sterically hindered silane monomer the star polymer also contains an internal catalyst, and when the crosslinkable site is an acetoacetoxy group the colliod composition also contains a non-polymeric polyfunctional amine. The star polymer can be either a random or heteroarm star polymer. The colloid composition is useful in the formation and stabilization of emulsion polymers, as a replacement for surfactants currently used for this purpose. Emulsion polymers formulated with the colloid composition are especially useful for one-part coatings such as paints and adhesives.