摘要:
A thermoplastic composition having a good balance of mechanical and thermal properties, an improved impact strength and a good processability includes a functionalized polyphenylene ether, a polyamide, and an olefinic elastomer containing a vinylaromatic monomer grafted thereon.
摘要:
Reinforced polyolefinic thermoplastic composition comprising a polyolefin, a carbonate of a metal appertaining to IIa Group of the Periodic System and a maleamic silane having general formula: ##STR1## wherein R and R.sub.1 are hydrogen or an alkyl radical; R.sub.2 is an alkoxy hydrolysable group or a halogen atom; R.sub.3 is an alkyl radical having from 1 to 8 carbon atoms; X may be a radical of formula: ##STR2## or an aromatic, cycloaliphatic o heterocyclic divalent radical.
摘要:
Thoughened thermoplastic compositions are described having a good balance of mechanical, thermal and process properties, comprising:at least a polyphenylene ether,at least a polyamide,an elastomeric copolymer containing a vinyl aromatic polymer grafted on an olefinic elastomer, andan organic diisocyanate.
摘要:
Reinforced, flame-resistant thermoplastic composition consisting of: (A) a polymeric matrix consisting of an olefinic or styrene (co)polymer; (B) a quantity which is sufficient to give flame resistance properties, of an intumescent flame-retarding agent consisting of a mixture of (i) a compound containing nitrogen, insoluble in water, consisting of an oligomer or polymer of a derivative of 1,3,5-triazine and (ii) an ammonium phosphate, and (C) from 5 to 50% by weight with respect to the total composition of a phosphorite having a phosphorous content, expressed as BPL (Bone Phosphate of Lime) of more than 40% by weight.
摘要:
A process for promoting the adhesion of polyolefins to metals, glass sheets, cement, asbestos or polar polymers (polyamides, polyesters, ethylene-vinyl acetate copolymers, etc.), which consists in modifying the polyolefin by reaction with 0.01%-7% by weight of a compound selected from the group consisting of bis-maleamic acids, bis-fumaramic acids, alkyl esters of said acids in which the alkyl radical has from 1 to 12 carbon atoms, and precursors of said acids or esters, and successively heating at temperature at which the polyolefin is applied to the support to be coated. The main applications concern the lining of pipes or other manufactured metal articles in order to protect them against chemical and atmospheric agents.
摘要:
The present invention aims to provide alternative means for the diagnosis of the risk of developing mouth mucosa cancers by means of fluorescence, easy to use, simple, light and space-saving and diagnostic kits comprising the above-mentioned device.
摘要:
Process for the preparation of a flexible, thermoplastic, composite filament, containing continuous fibers basically consisting of a flexible sheath made of polyolefinic resin which covers a bundle of fibers impregnated with a polyolefmic resin, wherein the inorganic fibers are treated with a solution containing additives which improve the compatibility between reinforcement and polymeric matrix after transformation into end products.
摘要:
Mica-reinforced polyolefinic compositions including from 30 to 90% by weight of polyolefin, from 70 to 10% by weight of mica and from 0.01 to 7% by weight, referred to the weight of the polyolefin and of the mica, of a maleammic acid or of a maleammic silane.
摘要:
Glass fibers for the production of reinforced polymers, characterized in that said fibers have a coating comprising, besides a film forming agent of polyolefinic kind and a silane, also a bis-maleamic acid such as N,N'-hexamethylene-bis-maleamic acid, N,N'-dodecamethylene-bis-maleamic acid or N,N'-isophoron-bis-maleamic acid.The invention also concerns blends consisting of 50-90% by weight of a crystalline polyolefin, e.g. polypropylene and 50-10% by weight of said coated glass fibers.