RUBBER COMPOSITIONS
    292.
    发明公开
    RUBBER COMPOSITIONS 审中-公开

    公开(公告)号:US20240343066A1

    公开(公告)日:2024-10-17

    申请号:US18580222

    申请日:2022-07-20

    CPC classification number: B60C1/0016 C08K3/36 C08K2201/006 C08K2201/014

    Abstract: The invention provides rubber compositions comprising: a diene rubber component; and a filler system, wherein the filler system comprises: a first silica which is surface-functionalised by the introduction of one of more functional groups and has a BET specific surface area of from 250 to 310 m2/g and a CTAB specific surface area of from 230 to 285 m2/g; and a second silica which is not surface-functionalised and has a BET specific surface area of from 60 to 120 m2/g and a CTAB specific surface area of from 55 to 105 m2/g. The rubber compositions are particularly suitable for use in the production of tire components, in particular tire treads.

    Sterically hindered amine stabilizer mixtures

    公开(公告)号:US12116469B2

    公开(公告)日:2024-10-15

    申请号:US17437176

    申请日:2020-03-04

    Applicant: BASF SE

    CPC classification number: C08K5/34926 C07D401/14 C08K2201/014

    Abstract: The present invention relates to mixtures of sterically hindered amines of the formulae (1) and (2)









    wherein
    at least one of the radicals Z1, Z2, Z3, Z4, Z5 and Z6 is C1-C18 alkyloxy or C5-C7 cycloalkyloxy and the remaining of the radicals Z1, Z2, Z3, Z4, Z5 and Z6 are hydrogen, hydroxy, C1-C18 alkyloxy or C5-C7 cycloalkyloxy, and
    at least one of the radicals Y1, Y2, Y3, Y4, Y5 and Y6 is a group of formula —CH2—CH═CH—R and the remaining of the radicals Y1, Y2, Y3, Y4, Y5 and Y6 are hydrogen or a group of formula —CH2—CH═CH—R, and
    the other substituents are as defined according to the present invention,
    methods for stabilization of an organic material, and
    a process for the preparation of compounds of formula (1′).

Patent Agency Ranking