摘要:
A padding material, comprisingA) one or more layers of an open-cell foam material based on melamine resin with a fire-retardant impregnating material applied, andB) a incombustible or low-flammability covering material, andC) a incombustible, supporting substructure,where the connection between the layers A), B), and C) is the result of force, of interlocking, or of coherent bonding, and also use for furniture, mattresses, mats, and seats in motor vehicles, in rail vehicles, in ships, or in aircraft.
摘要:
The surface of the cell scaffold of an open-cell melamine resin foam is wholly or partly coated with a mixture of fluorocarbon resin and modified polyisocyanate. The invention further relates to a process for producing this foam and to its use.
摘要:
A longitudinally oriented magnetic recording medium is described which has advantageous properties for digital recording, ie. a very small pulse width and high output level, and wherein the quotient l.sub.r /(d.multidot.L) (l.sub.r =residual polarization in mT, d=layer thickness in .mu.m, L=mean particle length in nm) is greater than 18 and the pulse width stated as PW.sub.50 is smaller than 500 nm.
摘要:
The fastening of a fan shroud on water boxes of a heat exchanger is byway of a swivel pin/hinge connection and by way of at least one plug-type bracket which engages in a receiving pocket in the case of a swivel operation. Only a swivel operation will then be required for the mounting which can be carried out in an easy manner.
摘要:
Magnetic recording media consist of a nonmagnetic substrate and one or more magnetizable layers bonded thereon and based on a polyurethane binder, the binder consisting of not less than 50% by weight of a branched polyurethane elastomer having sulfonate groups and possessing urea groups at the chain ends.
摘要:
Photopolymer relief plates are produced by applying a photopolymerizable relief-forming layer R, which contains a thermal polymerization inhibitor liberating nitrosyl free radicals on ultraviolet irradiation, to a dimensionally stable base which bears an adhesive layer A for the layer R, the layer A containing 0.01 to 10 percent by weight of a compound ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each is alkyl or R.sup.5 --(O-alkylene).sub.x --, R.sup.5 being H or alkyl and x being 1, 2, 3, 4 or 5, and then exposing, and developing, the layer R in a conventional manner.
摘要:
Magnetic recording media comprising a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 60 to 100% by weight of a polyurethane acrylate polymer possessing polymerizable double bonds and from 0 to 40% by weight of an acrylate and/or an acrylate prepolymer and/or an N-vinyl monomer and/or an N-vinyl prepolymer.
摘要:
Photopolymerizable compositions for the manufacture of relief printing plates, especially relief plates for making mats, comprising an alcohol-soluble linear polyamide, a photoinitiator and a mixture of (a) a diether or triether obtained from 1 mole of an aliphatic diol or triol and from 2 to 3 moles of N-hydroxymethylacrylamide or N-hydroxymethylmethacrylamide and (b) an unsaturated ester-urethane obtained from 1 mole of toluylene diisocyanate and 2 moles of a hydroxyalkyl acrylate or methacrylate, (a) and (b) being mixed in specific ratios.
摘要:
The invention relates to a foam which comprises a foam matrix having essentially open cells and an impregnation comprising essentially fluorocarbon resin or silicone resin applied to the foam matrix. The impregnation additionally comprises at least one flame-retardant substance. The invention further relates to a process for producing a foam according to the invention.