Agc Inc.

Asahi Glass Company, Limited

Masahiro Ohkura

Susumu Saito

Norihide Sugiyama

Shinji Wada

Takeshi Eriguchi

Akihiko Asakawa

Ryujiro Yamasaki

Kenta Natsukawa

The present invention relates to a method of producing a polymer including: polymerizing a compound represented by the following formula (3); or copolymerizing the compound represented by the following formula (3) with a compound (6) having a reactive carbon-carbon double bond and differing from the compound represented by the following formula (3), in a presence of at least one compound selected from the group consisting of compounds represented by the following formula (1) and compounds represented by the following formula (2).

Method for producing polymer

A curable composition capable of being cured at a low temperature of from room temperature to 150&#xb0; C. is provided. The curable composition comprises a fluorinated polymer containing at least three functional groups represented by the following formula (F) and at least one curing agent selected from the group consisting of an isocyanate-type curing agent, a blocked isocyanate-type curing agent and an amino resin-type curing agent:&#x2014;RCOZ&#x2003;&#x2003;(F)(in the formula (1), Ris a fluoroalkylene group, or a fluoroalkylene group with at least two carbon atoms having an etheric oxygen atom between carbon-carbon atoms, Zis NRNRH or NROR, and R, R, Rand Rare each independently a hydrogen atom or an alkyl group.)

Curable composition, coating material, electric wire, and resin article

An electric wire and coil covered with a cured product of a heat- or photo-curable fluorinated polymer and having high insulating properties and high productivity. An electric wire having a conductor wire and a covering layer covering the outer periphery of the conductor wire. The covering layer is made of a cured product of a curable composition which has a fluorinated polymer containing at least three functional groups represented by the following formula (F): &#x2014;RCOZ(F). In formula (F), Ris a single bond, a fluoroalkylene group, or a fluoroalkylene group with at least two carbon atoms having an etheric oxygen atom between carbon-carbon atoms, Zis NRNRH, NRORor OR, and R, R, R, Rand Rare each independently a hydrogen atom or an alkyl group.

Electric wire, coil and method for producing electric wire

To provide a process for producing a fluorinated crosslinked product which is excellent in stability and produces less HF. A process for producing a fluorinated crosslinked product, which comprises irradiating a fluorinated polymer having a unit represented by the following formula (1), with active energy rays having a wavelength of from 150 to 300 nm: wherein Xand Xare each independently a hydrogen atom or a fluorine atom, Ris a fluoroalkylene group or a fluoroalkylene group having at least two carbon atoms and an etheric oxygen atom between carbon-carbon atoms, Qis a single bond or an etheric oxygen atom, and Zis OH, ORor NRR, wherein Ris an alkyl group, and Rand Rare each independently a hydrogen atom or an alkyl group.

Process for producing fluorinated crosslinked product and use thereof

To provide a curable fluorinated polymer excellent in solubility in an alcohol, a method for its production and a cured product of the fluorinated polymer. A fluorinated polymer comprising units represented by the following formula (1), wherein in at least some of the units represented by the formula (1), Zis NRNRH or NROR: in the formula (1), Xand Xare each independently a hydrogen atom or a fluorine atom, Qis a single bond or an etheric oxygen atom, Ris a fluoroalkylene group, or a fluoroalkylene group with at least 2 carbon atoms, having an etheric oxygen atom between carbon-carbon atoms, Zis NRNRH, NRORor OR, R, R, Rand Rare each independently a hydrogen atom or an alkyl group, and Ris an alkyl group.

Fluorinated polymer, method for its production, and cured product of the fluorinated polymer

The present invention provides a curable composition which can yield a fluorinated cured product excellent in transparency, light resistance, heat resistance, and mechanical strength, and minimally damaged by stress concentration. The invention relates to a curable composition comprising a perfluoro polymer (a) containing a unit derived from a perfluorodiene having two polymerizable carbon-carbon double bonds, wherein two carbon atoms in one carbon-carbon double bond form the main chain, and the other carbon-carbon double bond forms a side chain; a perfluorocyclic monoene (b) having at least 8 carbon atoms, which has an alicyclic structure made of carbon atoms and optionally containing an oxygen atom, and one polymerizable carbon-carbon double bond, wherein at least one of two carbon atoms forming the carbon-carbon double bond is a carbon atom constituting the alicyclic structure; and a polymerization initiator (i).

Growing community of inventors

Chiyoda-ku, Japan

Masahiro Ohkura