Composição de borracha, composição acopladora e negro-de-fumo modificado

• Main Authors: JAMES D. BURRINGTON, BENNY R. RICHARDSON, ROGER L. SOWERBY, GHEBREHIWET N. GHEBREMESKEL, KIRK E. DAVIS, KENNETH W. LEE, JOSEPH W. PIALET, ANN E. WYKOFF, RALPH E. KORNBREKKE
• Format: Patent
• Language: Portuguese
• Published: 17.06.2003
• Edition: 7
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; PREPARATION OF CARBON BLACK; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

"COMPOSIçãO DE BORRACHA, COMPOSIçãO ACOPLADORA E NEGRO-DE-FUMO MODIFICADO". A presente invenção descreve o uso de um acoplador em composições de borracha enchidas com negro-de-fumo. O acoplador inclui um grupo amino e um grupo tiol ou uma ligação polissulfídica. O acoplador melhora a interação do negro-de-fumo com a borracha conforme medida por um decréscimo na tan delta a 60 C enquanto que substancialmente mantendo a tan delta a 0 C. A coupler is described for use in carbon black filled rubber compositions. The coupler includes an amine group and a thiol group or a polysulfidic linkage. The coupler improves the interaction of the carbon black with the rubber as measured by a decrease in the tan delta at 60° C. while substantially maintaining the tan delta at 0° C.