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US 4,908,396 AGranted
Fillers
AssigneeImperial Chemical Industries PLC
InventorsMartin B. Evans, Roger N. Rothon
Life of this patent
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Abstract
A cohesive polymer matrix comprising a matrix polymer and a coated particulate filler dispersed therein, characterized in that the matrix polymer is a solution rubber, and the filler is coated at least in part with a composition comprising an organic coating polymer of number average molecular weight of up to 3,000 which contains an acidic group (or a precursor thereof) and unsaturated groups optionally linked to the matrix polymer at least 25% w/w of which are vinyl groups.
Claims9
A cohesive polymer matrix comprising:
- a matrix polymer and a coated particulate filler dispersed therein, characterized in that the matrix polymer is a solution rubber, and the filler is coated, at least in part, with a composition comprising:
- an organic coating polymer of number average molecular weight in the range 750 to 1,400 which contains an acidic group (or its salt, imide, or anhydride) and unsaturated groups either bonded or non-bonded to the matrix polymer at least 30% w/w of which are vinyl groups.
Dependencies are inferred from the claim text.