Dic Corporation

Mitsubishi Heavy Industries Limited

Tomokazu Yamada

Masanori Miyamoto

Tatsuya Sakaue

Seiji Okumura

Kazufumi Takayanagi

Changjun Deng

Sei Yamamoto

Youichi Tanimoto

Keisuke Wakahara

Hideya Egoshi

Fangxi Xiu

Yosuke Midorikawa

Jun Kanno

Keiichiro Kawano

Azusa Yogo

Yasunori Kawaguchi

Akihiro Kondou

Yong Fang

In a main bearing replacement method for a wind turbine power generation facility including a nacelle, a rotor head rotatably supported by the nacelle, a drive shaft to which rotation of the rotor head is transmitted, a main bearing disposed between the rotor head and the nacelle, and a coupling connecting the rotor head and the drive shaft on a radially inner side of the main bearing, the wind turbine power generation facility includes a main bearing sleeve fitted and fixed to an inner ring of the main bearing and mounted with the rotor head, and the main bearing is replaced at least while the main bearing sleeve is fitted and fixed to the inner ring of the main bearing.

Main bearing replacement method for wind turbine power generation facility

There are provided a compound represented by general formula (1), a photopolymerization initiator comprising this compound, a photocurable composition having this photopolymerization initiator and a photocurable compound as essential components, and a cured product formed by curing this photocurable composition, wherein in formula (1), Rand Reach independently represents an alkyl group or the like; Rto Reach independently represent a hydrogen atom, an alkyl group or the like; Xrepresents a single bond or an alkylene group; and Xrepresents a bonding group represented by general formulas (2) to (4), and wherein n represents an integer of 1 to 6, when n is an integer of 1, Y represents an alkyl group, an aryl group or the like.

Compound, photopolymerization initiator, photocurable composition and cured product thereof, and photocurable ink and print using the same

A reinforcement object is reinforced without being carried out from a wind turbine power generation facility. A method of remodeling a wind turbine power generation facility includes: a carry-in step of carrying a reinforcement member into a hub through an opening portion which has a smaller dimension than a reinforcement object inside the wind turbine power generation facility and which brings into communication inside of the hub and outside of a front side of the wind turbine power generation facility, the reinforcement member having a smaller dimension than the opening portion; and a reinforcement step of processing the reinforcement object inside the hub, and reinforcing the reinforcement object by using the reinforcement member carried into the hub.

Method of remodeling wind turbine power generation facility

A novel compound is used as a novel photopolymerization initiator, the novel compound having a molecular structure represented by general formula 1 below [Rrepresents an alkyl group having 1 to 10 carbon atoms, Rrepresents an alkyl group having 1 to 12 carbon atoms or the like, Rrepresents an alkyl group having 1 to 12 carbon atoms or the like, Rto Reach independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or the like, Yrepresents an alkyl group having 3 to 19 carbon atoms or the like, Yrepresents an organic linking group, Xrepresents an ethylene group or the like, Xand Xeach represent an ethylene group or the like, Yrepresents a single bond or an alkylidene group, and n represents an integer of 1 to 3].

Compound, photocurable composition, cured product of same, printing ink, and printed matter curing the printing ink

A compound obtained through Michael addition reaction of an &#x3b1;-aminoacetophenone skeleton-containing compound (I) represented by the following general formula (1) and a reactive compound (II) having a function as a Michael acceptor is used as a photopolymerization initiator. In the general formula (1), Rrepresents an aliphatic group, Rto Reach independently represent an aliphatic group, etc., Rto Reach independently represent a hydrogen atom, Xrepresents a single bond or a C1-6 alkylene group, Xrepresents a carbonyl group, Yand Yrepresent a group represented by the following general formula (2). However, when Yand Yboth have a structure represented by the general formula (2), Xin at least one of them is &#x2014;NH&#x2014;. In the general formula (2), Xand Xeach independently represent a linear or branched alkylene group having 2 to 6 carbon atoms, Xrepresents a single bond, &#x2014;O&#x2014; or &#x2014;NH&#x2014;. 

Compound, active energy ray curable composition, cured article thereof, printing ink, and inkjet recording ink

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Tokyo, Japan

Tomokazu Yamada