A composition including at least one compound having a perfluoropolyether group and a curable site, wherein in a molecular weight distribution curve in gel permeation chromatography measurement, the following formula is satisfied: M2/M1≤3.5, wherein M1 is a molecular weight at a main peak, and M2 is a molecular weight at 25% intensity of an intensity of the main peak on a higher molecular weight side than M1. Also disclosed is a curable composition containing the composition and a method for producing the curable composition.

A fluorinated compound and a fluorinated compound-containing composition which enable formation of a surface layer having high friction resistance and fingerprint marks removability even if the fluorinated compound has a fluorinated organic group having a shorter chain are provided. A coating liquid, an article including the surface layer on its surface, and a method of producing the same are also provided.

A fluorinated compound represented by [(R.sup.f-A-).sub.2N-].sub.a1Q.sup.1[-T].sub.b1 (wherein R.sup.f: a fluoroalkyl group or a group having —O— between carbon atoms of a fluoroalkyl group having two or more carbon atoms, A: a divalent organic group having no fluorine atom, Q.sup.1: a a1+b1 valent organic group, T: —Si(R).sub.3-c(L).sub.c, R: an alkyl group, L: a hydrolyzable group or a hydroxyl group, a1: an integer of 1 or more, b1: an integer of 2 or more, and c: 2 or 3).

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).

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).

An intermediate transfer member that includes a hydroxyl terminated poly(oxetane) based fluorinated polyether optionally crosslinked with an aminoplast resin.

A process for preparing a low-molecular weight fluoropolyether containing an acid fluoride by decomposing a triflate or trifluoroacetate of a fluoropolyether having a hydroxyl group in the presence of a Lewis acid.

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.

An intermediate transfer member that includes a hydroxyl terminated poly(oxetane) based fluorinated polyether optionally crosslinked with an aminoplast resin.

The present invention is capable of producing a fluoropolyether group-containing polymer, which is represented by general formula (1) ##STR00001## (in the formula, Rf is a monovalent or divalent fluoropolyether group-containing polymer residue, X is independently a divalent organic group, and is 1 or 2), preferably has a number-average molecular weight of 1,000 to 50,000 in terms of polystyrene, and has both a terminal olefin moiety easily converting a functional group and a secondary hydroxyl group having high reactivity, by causing an organometallic reagent having -hydrogen, specifically, an organometallic reagent having an aliphatic unsaturated double bond (olefin moiety) at a terminal thereof and having -hydrogen, to act on a fluoropolyether group-containing polymer having a carbonyl group at a terminal thereof.