A stable homogeneous composition in the form of a microemulsion suitable for making rigid foams comprising a halogenated polyhydroxylated compound, a halogenated alkane, and a surfactant in an amount sufficient to maintain a stable microemulsion.

The invention relates to a probe constituted by an oligonucleotide fragment of structure predetermined by the application envisaged, wherein at least a part of the adenine groups therein is replaced by modified adenine groups so that they can form three hydrogen bonds with the reactive groups of thymine or uracil. This probe is useful in the field of biological analyses and extractions.

A probe precursor consisting of a fragment of oligonucleotide of structure predetermined by the envisaged application, in which the reactive functional groups are optionally protected and which is optionally fixed to a support, characterised in that at least a part of the pyrimidine bases therein is replaced by groups X and/or at least a part of the purine bases therein is replaced by groups Y, th...

A flip-top box is folded from a one-piece skillet by bringing a contents retainer panel (R) into overlapping relationship with a front panel (C1); thereafter pressing the skillet into a rectangular opening of a die (70), to cause certain panels of the skillet to stand perpendicular to rear panels of the container and lid, folding portions of the skillet projecting from the die into a plane paralle...

Compounds are described of the formula (I) wherein R1 and R4 independently represent a C1-4 alkyl group; R2 and R3 independently represent a C1-6 straight or branched alkyl chain which may be interrupted by an oxygen atom; R5 represents a straight or branched chain C1-13 alkyl group or a C5-8 cycloalkyl group which may be substituted by a C1-3 alkyl substitutent; The compounds represe...

Compounds are described of the formula (I) wherein R1 and R4 independently represent a C1-4 alkyl group; R2 and R3 independently represent a C1-6 straight or branched alkyl chain which may be interrupted by an oxygen atom; R5 represents a straight or branched chain C1-13 alkyl group or a C5-8 cycloalkyl group which may be substituted by a C1-3 alkyl substitutent; The compounds represe...

Compounds are described of the formula (I) wherein R1 and R4 independently represent a C1-4 alkyl group; R2 and R3 independently represent a C1-6 straight or branched alkyl chain which may be interrupted by an oxygen atom; R5 represents a straight or branched chain C1-13 alkyl group or a C5-8 cycloalkyl group which may be substituted by a C1-3 alkyl substitutent; The compounds represe...

The invention relates to laying of a bead of plastic, of the type with a butyl rubber base, on the periphery of a glass sheet intended to go into the composition of a multiple layer glass sheet. The bead is deposited with an extrusion unit having a nozzle. The glass sheet and nozzle are both able to be driven in movements amounting to translations, these translations of the glass sheet and the noz...

The invention relates to laying of a bead of plastic, of the type with a butyl rubber base, on the periphery of a glass sheet intended to go into the composition of a multiple layer glass sheet. The bead is deposited with an extrusion unit having a nozzle. The glass sheet and nozzle are both able to be driven in movements amounting to translations, these translations of the glass sheet and the noz...

Compounds are described of the formula (I) wherein R1 and R4 independently represent a C1-4 alkyl group; R2 and R3 independently represent a C1-6 straight or branched alkyl chain which may be interrupted by an oxygen atom; R5 represents a straight or branched chain C1-13 alkyl group or a C5-8 cycloalkyl group which may be substituted by a C1-3 alkyl substitutent; The compounds represe...