Abstract:
The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers and to certain novel (per)fluoropolyether polymers. The present invention also relates to the use the (per)fluoropolyether polymers thus obtained, as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).
Abstract:
The present invention relates to novel (per)fluoropolyether polymers characterized by high molecular weight and high functionality, to a process for their manufacture and to their use as intermediate compounds in the preparation of further polymers.
Abstract:
The present invention relates to a process for the synthesis of partially and fully fluorinated polyether (PFPE) polymers comprising cyclic moieties in the backbone chain, to PFPE polymers obtained therefrom and to the use of said PFPE polymers as intermediate compounds for the manufacture of additives for plastic and glass coating.
Abstract:
The present invention relates to a method for the synthesis of certain perfluoropolyether polymers having well-defined recurring units structure, and whereas the fraction of reactive end groups can be easily tuned.
Abstract:
The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers, to certain novel (per)fluoropolyether polymers. The present invention also relates to the use of the (per)fluoropolyether polymers thus obtained as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).
Abstract:
The present invention relates to a process for the synthesis of partially and fully fluorinated polyether (PFPE) polymers, to PFPE polymers obtained therefrom and to the use of said PFPE polymers as intermediate compounds for the manufacture of additives for plastic and glass coating.
Abstract:
The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers, to certain novel (per)fluoropolyether polymers. The present invention also relates to the use of the (per)fluoropolyether polymers thus obtained as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).
Abstract:
The present invention relates to a method for exchanging heat with an object said method comprising using a heat transfer fluid wherein said heat transfer fluid comprises one or more chemical compounds having the general formula (I) wherein: —Rf can be any C1-C10 fluorinated linear or branched carbon chain which can be partially or fully fluorinated, and can comprise O or S atoms, —X, Y and Z can be independently selected from halogens or hydrogen, with the provision that at least one of X, Y or Z is a halogen.
Abstract:
A method for the manufacture of perfluorinated compounds is herein disclosed. In particular, the method is useful for the manufacture of perfluorooxyalkyl carboxylic acid salts which can be used as surfactants. The method envisages the fluorination or a fluoroformate of an alcohol comprising a —CH2OCH2-moiety at a temperature equal to or higher than 20° C. and allows obtaining high yields and selectivity.
Abstract:
The invention relates to a process for the manufacture of a-iodoperfluoroalkanes and α,ω-diiodoperfluoroalkanes of general formula: (1) A(C2F4)n1, wherein: A is selected from F, CF3 and I and n is an integer equal to or higher than 1, with the proviso that, when A is F, n is an integer higher than 1 said process comprising heating a mixture [mixture (M1)] containing: —a compound selected from I2, CF3I, CF3CF2I and C2F4I2; —TFE; —and CO2 at definite temperatures and concentrations of CO2.
Abstract translation:本发明涉及一种制备α-碘全氟烷烃和α,ω-二碘全氟烷烃的方法,通式为:(1)A(C2F4)n1,其中:A选自F,CF3和I,n为等于 或高于1,条件是当A为F时,n为高于1的整数,所述方法包括加热含有:选自I 2,CF 3 I,CF 3 CF 2 I和C 2 F 4 I 2的化合物的混合物[混合物(M1)]; -TFE; 和二氧化碳在确定的温度和二氧化碳的浓度。