Cabot Corporation

Michael C Yu

James A Belmont

Curtis E Adams

Robert M Amici

Collin P Galloway

Joel M Cooke

Mark A Bissell

Patrick Collins

Marinus A Potter

Eduardo Romero

Methods of making polymeric fibers are provided and include spinning a solution containing at least one polymer, a modified pigment having attached at least one organic group, and a solvent. The polarity of the solvent and the polarity of the modified pigment are selected such that the polymer is soluble in the solution and the modified pigment is maintained dispersed throughout the solution. The polarity of the modified pigment may be substantially the same as the polarity of the solvent. Fibers of acrylic-containing polymers and other polymeric fibers are also provided. Articles and reinforcing material containing the various fiber(s) are also described.

Polymeric fibers and spinning processes for making said polymeric fibers

Various modified carbon products are disclosed which can form a part of a polymeric product containing the modified carbon product and a polymer. One type of modified carbon product disclosed is a carbon product having attached at least one organic group, monomeric group, or polymeric group. Another type of modified carbon product disclosed is a carbon product having attached a group having the formula: &mdash;Ar&mdash;CO &mdash;R or &mdash;C H CO &mdash;R where R is an organic group, monomeric group, or a polymeric group. The third type of modified carbon product contains a) a carbon product having attached at least one organic group directly attached to the carbon product, b) at least one ionic group, ionizable group, or a mixture thereof attached to the organic group, and c) at least one counter-ionic group or counter-ionizable group with at least one organic group, monomeric group, or polymeric group, or mixture thereof, where the counter-ionic or counter-ionizable group is attached to the ionic and/or ionizable group. A method of improving the dispersion of carbon products in polymers is also disclosed which involves dispersing the modified carbon products described above in a polymer to form a polymeric product.

Polymeric products containing modified carbon products and methods of making and using the same

Various modified carbon products are disclosed which can form a part of a polymeric product containing the modified carbon product and a polymer. One type of modified carbon product disclosed is a carbon product having attached at least one organic group, monomeric group, or polymeric group. Another type of modified carbon product disclosed is a carbon product having attached a group having the formula: --Ar--CO.sub.2 --R or --(--C.sub.n H.sub.2n --)--CO.sub.2 --R, where R is an organic group, monomeric group, or a polymeric group. The third type of modified carbon product contains a) a carbon product having attached at least one organic group directly attached to the carbon product, b) at least one ionic group, ionizable group, or a mixture thereof attached to the organic group, and c) at least one counter-ionic group or counter-ionizable group with at least one organic group, monomeric group, or polymeric group, or mixture thereof, where the counter-ionic or counter-ionizable group is attached to the ionic and/or ionizable group. A method of improving the dispersion of carbon products in polymers is also disclosed which involves dispersing the modified carbon products described above in a polymer to form a polymeric product.

Polymeric products containing modified carbon products and methods of

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Chelmsford, MA, United States of America

Michael C Yu