Canon Kabushiki Kaisha

Chieko Mihara

Tetsuya Yano

Takashi Kenmoku

Tatsuki Fukui

Ako Kusakari

Hiroyuki Sugata

Tsuyoshi Santoh

Shinya Kozaki

Yoshihiko Kikuchi

Toshiki Ito

Tsutomu Honma

Takeshi Imamura

Toshihiko Takeda

Miki Tamura

Etsuko Sugawa

Norikazu Fujimoto

Motoki Okinaka

Masataka Yashima

Hiroyoshi Kishi

Toyoko Kobayashi

Tetsuro Fukui

Kiyoshi Sakai

Norio Kaneko

Hiroshi Maehara

Masato Minami

Tsuyoshi Santo

Kazumi Tanaka

Yohei Murayama

Youji Kawasaki

Tatsuya Suzuki

Osamu Kanome

Masanori Sakuranaga

Yukitoshi Okubo

Kenji Kitagawa

Naoko Matsufuji

Shigeki Yoshida

Kanae Kawahata

The present invention provides a photo-curable composition, and UV imprint method, that requires a small demolding force, wherein the photo-curable composition contains a polymerizable monomer (A), a polymerization initiator (B), and a fluorine-containing surfactant (C), and the photo-cured product of the photo-curable composition has a water contact angle of 74 degrees or less.

Photo-curable composition and patterning method using the same

It is intended to provide a photocured product that is prepared using the photo-imprint method and has favorable pattern precision and improvement in pattern defects. The present invention provides a photocured product obtained by irradiating a coating film in contact with a mold with light, the photocured product containing a fluorine atom-containing surfactant, wherein of secondary ion signals obtained by the surface analysis of the photocured product based on time-of-flight secondary ion mass spectrometry, the intensity of a CHOion signal is higher than that of a CHOion signal.

Photocurable composition, method for forming a pattern, and method for producing a photocured product

A photocurable composition which decreases a mold releasing force is provided. The photocurable composition is a photocurable composition which is cured using light while being in contact with a mold having a surface in which a concavo-convex pattern is formed so as to manufacture a film having a concavo-convex pattern and which includes a polymerizable compound, a photopolymerization initiator, and a photosensitive gas generating agent having a photostimulation responsive portion. The photosensitive gas generating agent has a repeating structure containing at least one alkylene oxide chain and generates a gas from the photostimulation responsive portion by light irradiation.

Photocurable composition and method for manufacturing film

A curable composition contains a polymerizable compound and a polymerization initiator. The polymerization initiator initiates polymerization to cure the polymerizable compound. The curable composition further contains compounds having the following general formulae (1) and (2): 

Curable composition and patterning method using the same

Provided are a photocurable composition having high filling property and capable of reducing a mold release force upon production of a film through the utilization of a photo-imprint method, and a method of manufacturing a film using the photocurable composition. The photocurable composition is a photocurable composition, including at least the following component (A) to component (C): (A) a polymerizable compound; (B) a photopolymerization initiator; and (C) a surfactant represented by the following general formula (1):Rf-Rc-X.&#x2003;&#x2003;(1)

Photocurable composition and method of manufacturing film using the composition

The present invention provides a photo-curable composition that requires a small mold-releasing force in a method of producing a cured product and also provides a method of producing a cured product with a small mold-releasing force. The method of producing a cured product includes applying a photo-curable composition onto a base material; pressing a mold to the photo-curable composition to form a pattern in the photo-curable composition; irradiating the photo-curable composition provided with the pattern with first light to generate a cured product having the pattern; and releasing the mold from the cured product, wherein a gas-generating region is formed from a gas-generating agent between the cured product and the mold; the gas-generating region is irradiated with second light to generate a gas in the gas-generating region; and the mold is released from the cured product after the generation of the gas or simultaneously with the generation of the gas.

Method of producing cured product and method of forming pattern

Photocured product and method for producing the same

A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): 

Polymer having a sulfonic group or a sulfonate group and an amide group and method of producing same

To provide: a charge control agent having negative chargeability, which contributes to environmental conservation and the like to an increased degree, has high performance (high charge amount, quick rise-up of charge, excellent stability with time, and high environmental stability), and has improved dispersibility; a toner for developing an electrostatic charge image containing the charge control agent; and an image forming method and an image forming apparatus each using the toner for developing an electrostatic charge image. A charge control agent for controlling a charged state of powder, characterized by including one or more units each represented by the following chemical formula (1) in a molecule. 

Charge control agent, toner, image forming method, and image forming apparatus

A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): wherein R represents -A-SOR; Ais selected from an alkylene group, a heterocyclic ring, an aromatic ring; and &#x2014;SORis a sulfonic group or of a derivative of a sulfonic acid. 

To provide a toner for developing electrostatic images which is not easily cause the phenomenon of toner-spent, constituent materials are so selected that a charge control resin has hardness which is the same as the hardness of a binder resin or the charge control resin is harder than the binder resin, as measured with a scanning probe microscope in a viscoelasticity evaluation mode in respect to the binder resin and the charge control resin which are present in the particle interiors or particle surfaces of the toner.

Toner for developing electrostatic images

A developer carrying member is disclosed which can prevent a toner from being excessively charged in a developing assembly while keeping the charge quantity of the toner at a somewhat higher level, and seldomly causes toner melt adhesion to the developer carrying member. The developer carrying member contains a polymer having a unit represented by the chemical formula (1): 

Developer carrying member, and developing assembly

The invention provides a novel polyester adapted for use in a charge control agent for a toner for an electrophotographic process, having a charge stability, a high charge amount, an improved dispersibility and a biodegradability, and a producing method and an application technology therefore. According to the invention, there is provided polyhydroxyalkanoate comprising at least one unit represented by the following chemical formula in a molecule:&#x2014;(O&#x2014;CH(&#x2014;(CH)&#x2014;CH-p-CH&#x2014;CONH-ASOR)CHCO)&#x2014;(wherein Rrepresents OH, a halogen atom, ONa, OK or OR; Aand Reach represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic cyclic structure or a substituted or unsubstituted heterocyclic structure; m represents an integer selected from a range of 0 to 7; and R, A, Rand m have the aforementioned meanings independently for each unit when plural units are present), a charge control agent containing such polyhydroxyalkanoate, a toner utilizing such charge control agent, and an image forming method and an image forming apparatus utilizing such toner.

Polyhydroxyalkanoate having amide, sulfonic acid or sulfonate ester group, charge control agent and toner

The invention is to provide a novel polyhydroxyalkanoate having a reactive functional group within a molecule, a novel polyhydroxyalkanoate having a novel function by a chemical modification of the polyhydroxyalkanoate having the reactive functional group, and a producing method therefor. A polyhydroxyalkanoate containing a unit having a carboxyl group in a side chain is utilized for deriving a polyhydroxyalkanoate containing a unit having an amide group and a sulfonic acid group in the molecule.

Polyhydroxyalkanoic acid having ester, carboxyl or sulfonic acid group, and producing method therefor

The invention is to provide a novel polyhydroxyalkanoate having a reactive function group within the molecule and a producing method therefor In a polyhydroxyalkanoate containing a unit having a vinyl group in a side chain, such vinyl group is utilized for deriving a polyhydroxyalkanoate comprising a carboxyl group or a unit having an amide group and a sulfonic acid group.

Growing community of inventors

Isehara, Japan

Chieko Mihara