Filler composites

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 9/04 (2006.01)

Patent

CA 2480098

A composition comprising a plastics material, an inorganic particulate solid such as aluminium trihydrate and a coupling modified of formula A - (X - Y - CO)m (O - B - CO)n OH wherein A is a moiety containing a terminating ethylenic group with one or two adjacent carbonyl groups; Y is a direct bond, O or N; Y is C1-18-alkylene or C2-18 alkenylene; B is C2-6-alkylene; m is from 1 to 4 and n is from 0 to 5 provided that when A contains two carbonyl groups adjacent to the ethylenic group then X is N. Specific examples of coupling modifiers are B-carboxyl ethylacrylate and 5-carboxy pentyl maleimide.

L'invention concerne une composition contenant un matériau en matière plastique, une matière solide inorganique sous forme de particules telle que du trihydrate d'aluminium et un couplage modifié de formule A - (X - Y - CO)¿m? (O - B - CO)¿n? OH, dans laquelle A est une fraction contenant un groupe éthylène terminal ayant un ou deux groupes carbonyle adjacents ; Y est une liaison directe, O ou N ; Y représente alkylène en C¿1-18?ou alkénylène en C¿2-18? ; B représente alkylène en C¿2-6? ; m est un nombre de 1 à 4 et n un nombre de 0 à 5, dans la mesure où si A contient deux groupes carbonyle adjacents au groupe éthylène alors X = N. Parmi des exemples spécifiques de modificateurs de couplage figurent l'éthylacrylate B-carboxyle et le maléimide de pentyle 5-carboxy.

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