(54) POLYMER COATED CARBON PRODUCTS AND OTHER PIGMENTS AND METHODS OF MAKING SAME BY AQUEOUS MEDIA POLYMERIZATIONS OR SOLVENT COATING METHODS
(75) Inventors: Joel M. Cooke, Nashua, NH (US);
Charles H. Honeyman, Boston;
Robert M. Amici, Berlin, both of MA
(US); Peter A. Lovell, Appleton; John
L. Stanford, Urmston, both of (GB);
Rosa Casado Portilla, Bilbao (ES)
(73) Assignee: Cabot Corporation, Boston, MA (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/317,706
(22) Filed: May 24, 1999
Related U.S. Application Data
(60) Provisional application No. 60/104,117, filed on Oct. 13, 1998.
(51) Int. C I. B32B 9 00
(52) U.S. CI 428/407; 428/408; 428/403
(58) Field of Search 428/408, 407,
(56) References Cited
U.S. PATENT DOCUMENTS
2,439,442 A 4/1948 Anion et al 23/209.1
2,502,254 A 3/1950 Glassman 106/289
2,514,236 A 7/1950 Glassman 106/289
(List continued on next page.)
FOREIGN PATENT DOCUMENTS
EP 0 054 904 6/1982
EP 0 247 782 12/1987
EP 0 437 105 Al 7/1991
EP 0 475 075 Al 3/1992 C09D/11/00
EP 0 529 162 Al 3/1993
International Search Report for PCT/US 99/23429 Mailed Jan. 28, 2000.
PCT Written Opinion mailed Dec. 13, 2001.
Derwent Abstract No. 82-28019E (Oct. 17, 1979) "Pen-
etrate Flexographic Print Ink Based Polyacrylic Resin Modi-
fied Maleinised Rosin Modified Carbon Black".
Primary Examiner—Deborah Jones
Assistant Examiner—-Wendy Boss
A polymer coated modified carbon product is described wherein the polymer at least partially coats a modified carbon product. The modified product preferably has at least one organic group attached to the carbon product and the organic group is preferably substituted with an ionic, ionizable, or polar group for preparation in polar or aqueous based media. Methods of making the polymer coated modified carbon product are also described, such as by aqueousbased or solvent free polymerization methods, organic solvent based polymerization methods, or solution coating methods. Polymeric products and masterbatches containing the polymer coated modified carbon products are also described as well as methods to improve properties such as impact properties and tensile properties. Polymer coated modified colored pigments, methods of making the same, and polymeric products and masterbatches containing polymer coated modified colored pigments are also described.
52 Claims, 3 Drawing Sheets