Rubber compositions comprising organosilicon coupling agents and inorganic fillers
US8524823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2006 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Jan 10, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Elastomeric isoprene rubber compositions contain an effective amount of a coupling agent (A) comprising an organosilicon compound with coupling agent functions for inorganic/elastomeric fillers and include (B) at least one natural or synthetic rubber elastomer, (C) an inorganic filler as reinforcement filler, (D) other conventional constituents or additives comprising vulcanization agents; the coupling agent (A) being a functionalized organosilicon compound, including the following two compounds (i) and (2i), (i) being at least one functionalized siloxane corresponding to the formula (I): [(G0)3SiO1/2]m [(G0)2SiO2/2]n [G0SiO3/2]o [SiO4/2]p [(G2)a(G1)a′(Z—CO—N═N—CO-A)SiO(3-a-a′)/2]q and (2i) being a mixture of at least one functionalized siloxane (i) with (3i) at least one functionalized organosilane also corresponding to formula (I) where m=n=o=p=0 (zero), q=1, a=0, 1, 2 or 3 and the sum a+a′=3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.