PROBLEM TO BE SOLVED: To provide a photocurable fluoropolyether-based gel composition having both good preservability and curabilitySOLUTION: There is provided a photocurable fluoropolyether-based gel composition which comprises: (A) a chain polyfluoro compound having two or more alkenyl groups in one molecule and a perfluoroether structure in the main chain; (B) a polyfluoromonoalkenyl compound having one alkenyl group in one molecule and a perfluoropolyether structure in the main chain; (C) a fluorine-containing organohydrogen siloxane having two or more hydrogen atoms directly bonded to a silicon atom in one molecule; and (D) a photoactive hydrosilylation reaction catalyst

Photocurable fluoropolyether-based gel composition, method for curing the same, gel cured product of the same and gel product using the cured product

PROBLEM TO BE SOLVED: To provide a perfluoropolyether-based gel composition affording a cured product having excellent heat resistance, solvent resistance, chemical resistance, weatherability, mold releasability, water repellency, oil repellency, etc., as well as excellent acid resistance, and to provide a gel product using a cured product thereof.SOLUTION: The curable perfluoropolyether-based gel composition includes: (A) a straight chain fluorine-containing polymer represented by formula (1) (wherein, Rs are each independently vinyl or a 1C-4C alkyl; Ris a 1C-6C alkylene; Rs are each independently a hydrogen atom or 1C-4C alkyl optionally substituted with fluorine; and Rfis a perfluoroalkylene or divalent perfluoropolyether structure-containing group); (B) a polyfluoromonoalkenyl compound containing one alkenyl in one molecule, and having a perfluoropolyether structure in the backbone; (C) an organosilicon compound having at least two hydrogen atoms bonded to the silicon atom in one molecule; and (D) a hydrosilylation reaction catalyst. The cured product of the composition is well adapted for use as a material in automobiles, chemical plants, inkjet printers, semiconductor production lines, analytical, physical, and chemical equipment, medical equipment, aircrafts or fuel cells.

Curable perfluoropolyether-based gel composition and gel product using cured product thereof

To provide a method for producing a silicon compound, whereby a hydrosilylation reaction of a compound having a 2-propenyl group, can be conducted with high selectivity by a simple and easy method. The method for producing a silicon compound comprises reacting a compound (3) having a group represented by -CH2CH=CH2 and a silicon compound (4) having an H-Si bond in the presence of a transition metal catalyst (C) and a compound (D) having a group represented by -S(=O)-to obtain a compound (5) having a group represented by -CH2CH2CH2Si≡.

Method for manufacturing silicon compound

The invention provides a photocuring fluorinated polyol gel composition with both excellent storage performance and excellent curing performance. The photocuring fluorinated polyol gel composition comprises: (A) a chain polyfluorinated compound with one molecule containing more than two alkenyls and a main chain containing a perfluoropolyethers structure, (B) a polyfluorinated single-alkenyl compound with one molecule containing one alkenyl and a main chain containing a perfluoropolyethers structure, (C) fluorine-containing organic hydrogenated siloxane with one molecule containing more than two hydrogen atoms bonded to silicon atoms directly, and (D) a photo-activation hydrosilylation reaction catalyzer.

Photocuring fluorinated polyol gel composition, curing method thereof, gel curing matter thereof, and gel product using curing matter

According to the present invention, a photocurable fluoropolyether-based gel composition having good conservative and curable properties can be obtained The photocurable fluoropolyether-based gel composition of the present invention comprises: (A) a chain polyfluoro compound having two or more alkenyl groups in one molecule and a perfluoropolyether structure in a main chain; (B) a polyfluoromonoalkenyl compound having one alkenyl group in one molecule and a perfluoropolyether structure in a main chain; (C) a fluorine-containing organohydrogensiloxane having two or more hydrogen atoms directly connected to a silicon atom in one molecule; and (D) a photoactivation-type hydrosilylation reaction catalyst

Photocurable fluoropolyether gel composition, method for curing the same, gel cured product thereof and gel products using cured product thereof

PROBLEM TO BE SOLVED: To provide a method for further improving acid resistance of a perfluoropolyether gel cured product excellent in heat resistance, solvent resistance, chemical resistance, weatherability, mold releasability, water repellency, oil repellency, etc., without impairing these characteristics of the perfluoropolyether gel cured product.SOLUTION: A perfluoropolyether gel composition is used, in which the blending amount of a non-functional linear perfluoro compound (E) acting as a plasticizer is controlled within a specified range of 5 pts.mass or more and less than 20 pts.mass to 100 pts.mass total of a mixture of a linear perfluoropolyether compound (A) containing two or more alkenyl groups and a linear perfluoropolyether compound (B) having one alkenyl group in a molecule, which is a main agent (base polymer) of the composition.

Shiono Mikio

Papers

Method for improving acid resistance of perfluoropolyether gel cured product