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A polymer, fluoropolyether technology, applied in the field of novel derivatives, can solve problems such as polymer environment and public health perspectives are difficult to accept
Inactive Publication Date: 2018-08-21
SOLVAY SOLEXIS
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[0052] Furthermore, polymers with low molecular weight, such as the intermediate compound of formula (I) disclosed in this patent application, are known to have potential toxicological problems which make these polymers less acceptable from an environmental and public health perspective
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[0348] 5.0 g of SR256 and 5.0 g of CN9210 were mixed for 15 minutes at room temperature with stirring. Then, add 0.2g of 1173 (composition 1*).
[0349] Each of Polymers P-1 to P-3 was added to Composition 1* in an appropriate amount so as to obtain the additives in each of Compositions 2, 3 and 4 as shown in Table 1 concentration.
[0350] 1b - Preparation of coated supports using polyacrylic formulations
[0351] Each of the compositions 2, 3 and 4 prepared in Example 1a was applied with a doctor blade on three different supports: glass (G), aluminum panel (Al) and polycarbonate (PC), in order to obtain 100 microns wet film thickness.
[0352] Then, the coating was UV cured using a UV lamp 500W with an exposure time of 15 seconds. The resulting dry film thickness was 50 microns.
[0353] Static contact angle values were measured with respect to water and with respect to n-hexadecane using con DSA30 ...
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[0356] Example 2 - Ease of cleaning test
[0357] The stain (permanent black marker type) N50) were placed on the surface of different coated supports prepared following the procedure described in Example 1b for 24 hours at room temperature.
[0358] The results are shown in Table 1.
[0359] These results show that in the case of coatings prepared using formulations according to the invention in which PFPE is used as additive, dark stains are easily removed using a dry paper sheet. In contrast, indelible staining was observed when the coating was prepared using a comparative formulation (Composition 1*) without PFPE additive.
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Abstract
The present invention relates to novel derivatives of (poly)alkoxylated (per)fluoropolyethers, also referred to as PFPE-PAGs, comprising unsaturated end groups bearing acrylate, allylic or vinylic moieties.
Description
[0001] Cross References to Related Applications [0002] This application claims priority from European Application No. 15201931.1 filed on December 22, 2015, the entire content of which is hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to novel derivatives of (poly)alkoxylated (per)fluoropolyethers comprising unsaturated end groups, also known as PFPE-PAG. Background technique [0004] (Per)fluoropolyether (PFPE) polymers containing functional groups at their chain ends are potentially interesting materials from an industrial point of view, and they have therefore been the subject of several patents and patent applications over the past few years . [0005] For example, multifunctional poly(perfluoroalkylene oxides) and their preparation have been disclosed, for example, in US 3810874 (MINNESOTA MINING AND MANUFACTURING COMPANY) 14 / 05 / 1974 which discloses compound of: [0006] A-[CF 2 -O-(CF 2 CF 2 O) m -(CF ...
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