Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1997-11-12
2000-05-30
Brunsman, David
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 3175, 106 3176, 106 3177, 106 3178, 106 319, 106403, 106404, 106436, 106447, 106448, 106450, 106453, 106455, 106456, 106460, 106461, 106471, 106472, 106473, 106474, 106475, 106476, 106479, 106480, 106481, 106 49, 523200, 523215, C09D 1100, C08K 904, C09C 162, C09C 164, C09C 100
Patent
active
06068688&
ABSTRACT:
A modified particle is disclosed wherein a particle has an attached group having the formula: ##STR1## wherein Ar represents an aromatic group; R.sup.1 represents a bond, an arylene group, an alkylene ##STR2## wherein R.sup.4 is an alkyl or alkylene group or an aryl or arylene group; R.sup.2 and R.sup.3, which can be the same or different, represent hydrogen, an alkyl group, an aryl group, --OR.sup.5, --NHR.sup.5, --NR.sup.5 R.sup.5, or --SR.sup.5, wherein R.sup.5, which is the same or different, represents an alkyl group or an aryl group; and SFR represents a stable free radical. Also disclosed is a modified particle or aggregate having attached a group having the formula: ##STR3## wherein CoupA represents a Si-containing group, a Ti-containing group, or a Zr-containing group; R.sup.8 and R.sup.9, which can be the same or different, represent hydrogen, an alkyl group, an aryl group, --OR.sup.10, --NHR.sup.10, --NR.sup.10 R.sup.10, or --SR.sup.10, wherein R.sup.10 represents an alkyl group or an aryl group; SFR represents a stable free radical; and n is an integer of from 1 to 3. A modified particle having an attached --SFR or --X--SFR is additionally disclosed. Also, modified particles with attached polymers are also disclosed as well as methods of making the modified products.
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Rawalpally Thimma R.
Tu Hairuo
Warley Russell L.
Whitehouse Robert S.
Brunsman David
Cabot Corporation
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