C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/00 (2006.01) C08F 283/01 (2006.01) C08J 9/06 (2006.01) C08K 5/01 (2006.01) C08K 5/053 (2006.01) C08K 5/16 (2006.01) C08K 5/3492 (2006.01) C08K 5/51 (2006.01) C08L 67/06 (2006.01) C09D 167/06 (2006.01) C09J 167/06 (2006.01)
Patent
CA 2744506
The invention relates to a heat curable composition for fire-resistant or intumescent composite parts, which is free of any halogen additive or halogen structure in the components thereof, and which comprises: a) 100 parts by weight of a dry resin, including a1) an unsaturated polyester having an acid index lower than 10 and/or a2) a vinyl ester; b) 40 to 200 parts by weight of a reactive thinner among ethylenically unsaturated monomers; c) 20 to 110 parts by weight of a thermal expansion agent selected from melamine and derivatives thereof, guanidine, glycine, urea, triisiocynurates, and azodicarbinamide; d) 0 to 250 parts by weight of aluminium trihydrate; e) 10 to 80 parts by weight of a carbonisation precursor agent selected from multifunctional polyols; f) 50 to 200 parts by weight of a compound selected from a phosphorus derivative and/or a boric acid derivative; g) optionally at least one metal oxide; h) optionally other additives and fillers; i) optionally reinforcements containing natural or synthetic fibres and related fabrics, wherein the acid component of the polyester al) contains at least 60 mol % of acid and/or maleic anhydride and the polyol component contains at least 70 mol % of propylene glycol. The compositions can be used in the field of transport, building, public works, civil engineering and recreation or street furniture with intumescent composite parts or coatings that comply at least with criterion HL2 of the R1 requirement of prCEN/TS 45545-2:2008.
L'invention concerne une composition thermodurcissable pour pièces composites résistantes au feu ou intumescentes, exempte de tout additif halogène et de structure halogénée dans ses composants et qui comprend : a) 100 parties en poids de résine sèche, comprenant a1) : un polyester insaturé d'indice d'acide inférieur à 10, et/ou a2) : un vinyl ester, b)40 à 200 parties en poids d'un diluant réactif parmi les monomères éthyléniquement insaturés, c) 20 à 110 parties en poids d'un agent d'expansion thermique, parmi : mélamine et ses dérivés, guanidine, glycine, urée, triisocyanurates, azodicarbonamide, d) 0 à 250 parties en poids de trihydrate d'Aluminium, e) 10 à 80 parties en poids d'un agent précurseur de carbonisation parmi les polyols multifonctionnels, f) 50 à 200 parties en poids d'un composé parmi un dérivé phosphore et/ou un dérivé d'acide borique, g) en option, au moins un oxyde métallique, h) en option, autres additifs et charges, i) en option, des renforts Image
Coudevylle Urbain
Foussard Thierry
Herman Serge
Cray Valley Sa
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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