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Novel (per)fluoropolyether polymers

A technology of polymer and fluoropolyether, which is applied in the field of novel fluoropolyether polymer and its use as a lubricant, and can solve the problems of not disclosing perfluoropolyether

Active Publication Date: 2018-03-27
SOLVAY SOLEXIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the article does not disclose perfluoropolyethers terminated with dialkylamine end groups, wherein the alkyl chain is substituted with at least one hydroxyl group

Method used

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  • Novel (per)fluoropolyether polymers
  • Novel (per)fluoropolyether polymers
  • Novel (per)fluoropolyether polymers

Examples

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example 1

[0229] Step 1 - Synthesis of ZDOL perfluorobutanesulfonate

[0230] 154g perfluoro-1-butanesulfonyl fluoride (CF 3 CF 2 CF 2 CF 2 SO 2 F - 96%, 489 mmol) and 54 g of triethylamine (TEA - 534 mmol) were placed in a 1000 ml round bottom flask equipped with a mechanical stirrer, dropping funnel, thermometer and condenser. After the temperature has cooled down, add 175 g via the dropping funnel in about 2 hours ZDOLPFPE (EW=431, 406 meq) while keeping the reaction mixture under stirring and at -15°C / -20°C. After the addition was complete, the cooling bath was removed and the reaction mixture was allowed to warm to room temperature. 19 F-NMR shows ZDOL PFPE was quantitatively converted to the corresponding perfluorobutanesulfonate derivatives.

[0231] To this mixture was then added 100 g of D100 (1:1 mixture by weight of perfluoropropyltetrahydropyran and perfluorobutyltetrahydrofuran), 76 g methanol and shake vigorously.

[0232] After phase separation, the lower o...

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Abstract

The present invention relates to novel (per)fluoropolyether polymers and their use as lubricants, in particular for Magnetic Recording Media (MRM).

Description

[0001] Cross References to Related Applications [0002] This application claims priority from European Application No. 15175979.2 filed on 09.07.2015, the entire content of which application is hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to novel (per)fluoropolyether polymers and their use as lubricants, especially for magnetic recording media (MRM). Background technique [0004] Thin-film magnetic recording media (MRM), such as hard disks, are used to store large amounts of data and are typically composed of multiple layers, including a non-magnetic substrate on each side of which is sequentially deposited an underlying layer and at least a magnetic layer. A carbon overcoat is typically deposited on the magnetic recording layer to protect the recording layer from abrasion and environmental corrosion. [0005] A thin layer of lubricant is applied over the protective carbon overcoat to improve the tribological p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/00C08G65/333C08G65/335G11B5/725
CPCC08G65/33306C08G65/335C08G65/3351C08G65/007G11B5/7257C10M107/38
Inventor R.瓦尔瑟奇R.弼高基G.西梅奥内
Owner SOLVAY SOLEXIS
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