Mitsubishi Chemical Corporation

Mitsubishi Rayon Company, Limited

Tetsuya Noda

Fuminori Nakaya

Keiichi Sakashita

Taeko Oonuma

Shingo Hikita

Yoshiko Irie

Yosuke Matsunaga

Mitsufumi Nodono

Toru Tokimitsu

Hajime Okutsu

Hiroyuki Nogami

Takafumi Asai

Kousuke Fujiyama

Masanari Nishimura

Masakazu Itou

The present application pertains to a production method for a polymer, including a step for polymerizing a starting material composition (I) that includes: a monomer mixture (I-1) containing a macromonomer (a) represented by the following formula (1), and (b) a vinyl monomer; and 0.01 to 5 parts by mass of a non-metallic chain transfer agent with respect to 100 parts by mass of the monomer mixture (I-1); a polymer obtained by the production method; and a molded article. According to the present invention, there can be provided a polymer having exceptional resistance to dwell-induced degradation, and a molded article having exceptional yellowing resistance, a low haze value, and exceptional pliability. 

Polymer, production method for same, and molded article

The present invention pertains to a resin composition which includes component: a membrane-forming polymer, component: a polymer obtained by polymerizing a monomer composition which includes a (meth)acrylic ester macromonomer represented by general formula and another monomer, and component: a polymer including a vinylpyrrolidone unit, a membrane-forming stock solution which includes the resin composition, a porous membrane obtained by forming with the membrane-forming stock solution, and a hollow fiber membrane, a water treatment device, an electrolyte support, and a separator which use the porous membrane. According to the present invention, it is possible to provide a porous membrane which has pores with high uniformity wherein the formation of large pores with a diameter of 1 &#x3bc;m or higher is suppressed and which has excellent fractionation performance and high water permeability, and a hollow fiber membrane, water treatment device, electrolyte support, and separator which use the porous membrane.

Resin composition, membrane-forming stock solution, porous membrane, and hollow fiber membrane, water treatment device, electrolyte support, and separator using porous membrane

A polymer composition containing a polymer (B) obtained by polymerizing a monomer composition containing: a methacrylic acid ester macromonomer (b1) represented by the following formula (1); and another monomer (b2). Also, a porous membrane formed from a membrane forming polymer (A) and the aforementioned polymer composition. 

Polymer composition and porous membrane

A molded product with excellent transparency can be obtained by using a polymer (D) obtained by suspension polymerization of a monomer mixture (1) containing (a) to (c) below:

Polymer and production method thereof, molding material and molded product

To provide a novel compound having both a surface-activating ability and a polymerization controlling ability. A compound represented by the following general formula (1) or (2):  wherein, Rand Rare an organic group having the hydrophile-lipophile balance (HLB) determined by Griffin's method of 3 or more. The definitions of R, R, R, R, Z, p and q are described in the Description.

Chain transfer agent and emulsion polymerization using the same

An object of the invention is to provide a curable composition having a HALS skeleton and capable of producing polymers having excellent weather resistance and outer appearance. The present invention provides a curable composition including at least a monomer component that contains a monomer (A) represented by a certain formula and a monomer (B) polymerizable with the monomer (A). In the curable composition, the content of the monomer (A) is 0.01 to 35 mol % in the monomer component, and the content of the monomer (B) is 65 to 99.99 mol % in the monomer component.

Curable composition and polymer

An object of the invention is to provide a molding with suppressed coloring which has good weather resistance and in which the advantageous effect does not decrease with time. The present invention provides a molding material comprising a polymer (A) obtained by polymerizing 0.01 to 35 mol % of monomer (a1) represented by a specified formula (1) and 65 to 99.99 mol % of monomer (a2) whose main component is methylmethacrylate.

Molding material and molding

To provide a novel compound having both a surface-activating ability and a polymerization controlling ability. A compound represented by the following general formula (1) or (2): 

Disclosed are a method for producing a polymer by a polymerization of a mixture at a temperature of 210&#xb0; C. or lower, wherein the mixture comprises 0.01 to 35 mol % of a monomer or a polymer thereof which has a piperidine skeleton represented by formula (1), and a molded body thereof.  Rrepresents a hydrogen atom or a methyl group, X represents an oxygen atom, an imino group, or a specific oxygen atom containing a hydrocarbon group, and Rand Rrepresent a hydrogen atom, a linear alkyl group with C1 to C8, a branched alkyl group with C1 to C8, an alicyclic hydrocarbon with C6 to C8, or an aryl group, wherein Rand Rmay also form a cyclic structure.

Method for producing polymer using monomer having piperidine skeleton, and molded body

Disclosed is a primer composition for coating having excellent adhesion properties to a substrate and comprising a polyolefin resin or acrylic resin, without the use of a chlorine-containing compound, which primer composition essentially comprises a polymer (A) having at least a unit of a (meth)acrylic ester monomer (a) in which acryloyloxy group or methacryloyloxy group is bonded to secondary carbon atom or tertiary carbon atom.

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Otake, Japan

Tetsuya Noda