There are provided a photosensitive resin composition, a cured product thereof, and a wiring structure body, an electronic component, a semiconductor device, and a camera module each including the cured product. This photosensitive resin composition is cured by irradiation with active energy rays, instead of by heat treatment at high temperatures. In this photosensitive resin composition, film loss after a development process is restrained. Furthermore, a miniaturized pattern can be accurately formed by photolithography. An aspect of the present invention is a photosensitive resin composition including components (A) to (C): (A) a modified polyphenylene ether represented by formula (1) and formula (2), (B) a silsesquioxane compound represented by formula (3), and (C) a photopolymerization initiator, a cured product thereof, and a wiring structure body, an electronic component, a semiconductor device, and a camera module each including the cured product.

An object of the present invention is to provide a photocurable resin composition capable of obtaining a cured product having excellent quick curability by irradiation with a low integrated light intensity and flexibility. A photocurable resin composition containing the following components (A) to (E): component (A): a monofunctional urethane (meth)acrylate having a polyether skeleton; component (B): a monofunctional (meth)acrylic monomer having a polyether skeleton and having no urethane skeleton; component (C): a photoradical polymerization initiator; component (D): a polyfunctional (meth)acrylic monomer having 4 or more functionalities; and component (E): a polyester-based plasticizer having no (meth)acryloyl group.

An object of the present invention is to provide a photocurable resin composition capable of obtaining a cured product having excellent quick curability by irradiation with a low integrated light intensity and flexibility. A photocurable resin composition containing the following components (A) to (E): component (A): a monofunctional urethane (meth)acrylate having a polyether skeleton; component (B): a monofunctional (meth)acrylic monomer having a polyether skeleton and having no urethane skeleton; component (C): a photoradical polymerization initiator; component (D): a polyfunctional (meth)acrylic monomer having 4 or more functionalities; and component (E): a polyester-based plasticizer having no (meth)acryloyl group.

Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. The present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by the formula (1) and one or two or more of hydrophobic monomers represented by the formulas (2) and (3) under the following conditions (A) to (D).

Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. The present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by the formula (1) and one or two or more of hydrophobic monomers represented by the formulas (2) and (3) under the following conditions (A) to (D).

Polymer polyols (“PMPOs”), processes for their production, and the use of such PMPOs, particularly in the production of flexible polyurethane foams. The PMPOs are produced using an ethylenically unsaturated composition that includes a crosslinker that results in crosslinks in the PMPO polymer particles that may decompose when exposed to flame temperatures. The PMPOs is capable of providing a flexible polyurethane foam that may exhibit combustibility resistance properties.

Polymer polyols (“PMPOs”), processes for their production, and the use of such PMPOs, particularly in the production of flexible polyurethane foams. The PMPOs are produced using an ethylenically unsaturated composition that includes a crosslinker that results in crosslinks in the PMPO polymer particles that may decompose when exposed to flame temperatures. The PMPOs is capable of providing a flexible polyurethane foam that may exhibit combustibility resistance properties.

A polymeric surfactant for use in chemical enhanced oil recovery, including a terpolymer of a first non-ionic monomer, a second non-ionic monomer, and an ionic monomer, the first non-ionic monomer being a hydrophilic monomer and the second non-ionic monomer being a hydrophobic monomer, the ionic monomer being in a lower proportion than the first and second non-ionic monomers. A method of preparation of polymeric surfactants.

A polymeric surfactant for use in chemical enhanced oil recovery, including a terpolymer of a first non-ionic monomer, a second non-ionic monomer, and an ionic monomer, the first non-ionic monomer being a hydrophilic monomer and the second non-ionic monomer being a hydrophobic monomer, the ionic monomer being in a lower proportion than the first and second non-ionic monomers. A method of preparation of polymeric surfactants.

A composition set containing: a first liquid containing an oxidizing agent; and a second liquid containing a reducing agent, wherein at least one of the first liquid and the second liquid contains a compound represented by the following formula (1):

##STR00001##

wherein R.sup.11 and R.sup.12 each independently represent a hydrogen atom or a methyl group, and R.sup.13 represents a divalent group having a polyoxyalkylene chain, and wherein the polyoxyalkylene chain has 100 or more of oxyalkylene groups.