Abstract:
A formulation includes a polymeric material, a nucleating agent, a blowing, and a surface active agent. The formulation can be used to form a container.
Abstract:
Gegenstand der vorliegenden Anmeldung sind thermisch expandierbare Zubereitungen, enthaltend (a) mindestens ein peroxidisch vernetzbares Polymer, (b) mindestens eine niedermolekulares multifunktionelles Acrylat, (c) mindestens ein Peroxid sowie (d) mindestens zwei voneinander verschiedene chemische Treibmittel, wobei das Massenverhältnis des mindestens einen Peroxids zu dem mindestens einem niedermolekularen multifunktionellen Acrylat mindestens 1:3 beträgt.
Abstract:
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.
Abstract:
A composite material includes, in an exemplary embodiment a polyurethane foam and a plurality of inorganic particles dispersed therein. The polyurethane foam is formed from a reaction mixture that includes a first polyether polyol having a first molecular weight and a functionality of about 3 or less, a second polyether polyol having a second molecular weight less than the first molecular weight and a functionality of greater than about 3, and at least one isocyanate. The ratio of an amount of the first polyol in the reaction mixture to an amount of the second polyol in the reaction mixture is between about 1 :1 to about 5:1.
Abstract:
Afire resistant syntactic foam material, the material comprising the reaction product of a reaction mixture including a resole cold curing phenolic resin and incorporating a plurality of hollow spheres, the reaction mixture also including a solution of a partial phosphate ester,a low viscosity phosphate plasticiser, a reinforcing filler and a particulate filler.