公开(公告)号：EP1681307A4

公开(公告)日：2010-02-17

申请号：EP05743691

申请日：2005-05-25

Applicant: DAICEL CHEM

Inventor： KOYAMA HIROSHI ,  ASADA TAKESHI

IPC: C08F20/28 ,  G03F7/033 ,  G03F7/039 ,  H01L21/027

CPC classification number: G03F7/0397 ,  C08F220/28 ,  Y10S430/111

公开(公告)号：JP2000344809A

公开(公告)日：2000-12-12

申请号：JP15950599

申请日：1999-06-07

Applicant: DAICEL CHEM

Inventor： ASADA TAKESHI ,  RI SHINKEN

IPC: C08F2/38 ,  C08F12/08

Abstract: PROBLEM TO BE SOLVED: To obtain a polymerization initiator which is able to control a molecular weight and its distribution by comprising at least one N-substituted compound selected from an N-substituted nitroso compound or a dimer thereof and an N-substituted nitron compound, and a radical polymerization initiator. SOLUTION: The N-substituted nitroso compound is represented by formula I, and the N-substituted nitron compound is represented by formula II. A preferred polymerization initiator is one wherein the N-substituted compound is selected from a 2-alkyl-2-nitrosopropane or its dimer and an N-branched alkyl-α- phenylnitron. It is preferred that the ratio between the N-substituted compound and the radical polymerization initiator is such that the former/the latter = 0.1/1 to 100/1 (molar ratio), and that the polymerization initiator system is used in an amount of 0.01 to 20 pts.wt. per 100 pts.wt. of a vinyl monomer. When using this polymerization initiator system, the vinyl monomer can be polymerized in a living radical way to accurately control the molecular weight and the distribution of the molecular weight.

公开(公告)号：JP2001163929A

公开(公告)日：2001-06-19

申请号：JP32358899

申请日：1999-11-15

Applicant: DAICEL CHEM

Inventor： ASADA TAKESHI ,  SEKIGUCHI JUNICHI ,  TERANISHI TADASHI ,  UMEMOTO KOICHI ,  YANAGIDA SATOKO

IPC: C08L25/04 ,  C08F279/04

Abstract: PROBLEM TO BE SOLVED: To provide a rubber-containing styrene resin wherein rubber particles dispersed in a styrene resin is controlled with respect to the morphology and particle thereof. SOLUTION: The rubber-containing styrene resin has particles of a rubber component dispersed in a matrix constituted of a styrene resin wherein a graft ratio of a styrene monomer to the rubber component is 1 or over, an average particle size of the dispersed rubber component ranges from 0.1 to 3 μm and a requirement for the following equation (1) is satisfied Mn=aT+b (1) (wherein Mn is a number average molecular weight of the matrix resin, T is a conversion of the styrene monomer, a is a constant larger than 0 and b is a constant not smaller than 0). The rubber component may be made of a butadiene rubber or the like. The particle size distribution of the dispersed rubber component may, for example, be in a two-peak form. Such a styrene resin can be prepared by polymerizing at least a styrene monomer in the presence of the rubber component at a graft ratio of 1 or over under conditions where the relation between the conversion Y of the styerene monomer and the number average molecular weight Mn of the polymer can be approximately expressed by a simple equation.

公开(公告)号：JP2002161112A

公开(公告)日：2002-06-04

申请号：JP2000361974

申请日：2000-11-28

Applicant: DAICEL CHEM

Inventor： ASADA TAKESHI ,  KAKUMOTO SATOSHI ,  TAKAHASHI IKUO

IPC: C08J5/00 ,  C08F20/18 ,  C08F220/14 ,  C08F220/18

Abstract: PROBLEM TO BE SOLVED: To obtain a new (metha)acrylate type resin of high thermal resistance and low moisture absorption. SOLUTION: The (metha)acrylate type resin contains 3 wt.% or more of trimethylcyclohexyl (metha)acrylate monomer units based on total monomer units, and trans or cis form is more than 50 mol% of the above trimethylcyclohexyl (metha)acrylate monomer. The above trimethylcyclohexyl (metha)acrylate monomer contains 3,3,5-trimethylcyclohexyl (metha)acrylate or the like. The above trimethylcyclohexyl (metha)acrylate monomer may contain 75 mol% or more of trans form or 75 mol% or more of cis form.

公开(公告)号：JPH10292003A

公开(公告)日：1998-11-04

申请号：JP5880298

申请日：1998-02-23

Applicant: DAICEL CHEM

Inventor： NAKAI TORU ,  ASADA TAKESHI

IPC: C08F2/38 ,  C08F12/00 ,  C08F12/04

Abstract: PROBLEM TO BE SOLVED: To obtain a vinyl polymer having a high molecular weight and a controlled molecular weight distribution while keeping the rate of polymerization high by adding a substituted hydroxylamine to the system of radical polymerization of a vinyl monomer. SOLUTION: The substituted hydroxylamines added are represented by formula I (wherein R1 and R2 are each H, a 1C or higher (substituted) aliphatic hydrocarbon group or an aromatic hydrocarbon group) or/and formula II (wherein R3 and R4 are each 1C or higher substituted aliphatic hydrocarbon group). In each or R1 and R2 , the aliphatic hydrocarbon group is exemplified by metal, ethyl, isopropyl or t-butyl, and the aromatic hydrocarbon group is exemplified by phenyl or benzyl. In formula II, -R3 -R4 - is a divalent (substituted) aliphatic hydrocarbon group corresponding to formula I, such as -CH2 CH2 - or -CH2 CH2 CH2 CH2 -. In the radical polymerization, the initiator is used in a ratio of the substances of formulas I and II to the initiator of 0.01/1 to 100/1 by mole.

公开(公告)号：JP2006036894A

公开(公告)日：2006-02-09

申请号：JP2004217768

申请日：2004-07-26

Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

Inventor： KOYAMA YUTAKA ,  ASADA TAKESHI

IPC: C08F20/28 ,  G03F7/033 ,  G03F7/039 ,  H01L21/027

CPC classification number: G03F7/0397 ,  C08F220/28 ,  Y10S430/111

Abstract: PROBLEM TO BE SOLVED: To provide a compound having a new lactone skeleton which is useful as a constituent monomer for photoresist resins. SOLUTION: The polymer compound contains at least one kind of monomer unit represented by formula (I) (wherein R a is a hydrogen atom, a halogen atom, a 1-6C alkyl group or a 1-6C haloalkyl group; R 1 and R 2 are same or different and they are each a hydrogen atom or a hydrocarbon group, with the proviso that at least either one of R 1 and R 2 is a hydrocarbon group and R 1 and R 2 may mutually be combined to form a ring together with adjacent carbon atom; R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are same or different and they are each a hydrogen atom or a hydrocarbon group). COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 待解决的问题：提供具有新的内酯骨架的化合物，其可用作光致抗蚀剂树脂的构成单体。 解决方案：聚合物化合物含有至少一种由式（I）表示的单体单元（其中R“> S 是氢原子，卤素原子，1-6C烷基或 1-6C卤代烷基; R 1和R 2相同或不同，它们各自为氢原子或烃基，条件是至少一个 R 1 和R 2 是烃基，并且R 1 和R 2 可以相互组合以形成 与相邻的碳原子一起环; R 3，R 4，R 6，R SP，R SP， R 7＆lt; SP＆gt;和＆lt; SP＆gt; 9＆lt; SP＆gt;相同或不同，它们各自为氢原子或烃基）。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2001316437A

公开(公告)日：2001-11-13

申请号：JP2000131960

申请日：2000-05-01

Applicant: DAICEL CHEM

Inventor： ASADA TAKESHI ,  TERANISHI TADASHI ,  UMEMOTO KOICHI ,  YAMAGUCHI HIROYOSHI

IPC: C08J5/00 ,  C08F291/02 ,  C08L51/04

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method which gives a rubber-modified styrenic resin having high impact resistance. SOLUTION: In manufacturing a rubber-modified styrenic resin by subjecting a solution comprising 75-98 wt.% of (A) starting material monomers comprising a styrenic monomer or a mixture of a styrenic monomer and a vinyl monomer copolymerizable therewith and (B) 25-2 wt.% of a rubbery polymer, a solution containing a part of the component (A) together with the component (B) is subjected to polymerization until rubber phase inversion occurs and subsequently the rest of the component (A) is added in a lump or in lots to the polymerization reaction system and further the polymerization reaction is continued.

公开(公告)号：JPH11343319A

公开(公告)日：1999-12-14

申请号：JP8162399

申请日：1999-03-25

Applicant: DAICEL CHEM

Inventor： ASADA TAKESHI

IPC: C08F2/38 ,  C08F4/02 ,  C08F279/02

Abstract: PROBLEM TO BE SOLVED: To obtain the subject resin which has excellent flowability (moldability) and gives a molding excellent in impact resistance by radically polymerizing a styrene monomer or a styrene monomer with a monomer copolymerizable therewith in the presence of a rubbery polymer and a specified substituted hydroxylamine. SOLUTION: A styrene monomer (e.g. styrene) or a styrene monomer and a monomer (e.g. acrylonitrile) copolymerizable therewith are radically polymerized in the presence of a rubbery polymer, desirably, polybutadiene and substituted hydroxylamines represented by formulae I and/or II. In the formulae, R3 and R4 are each a 1C or higher aliphatic hydrocarbon group; and R1 and R2 are each R3 or an aromatic hydrocarbon group. Desirably, the monomer or the monomers are polymerized in the presence of a radical polymerization initiator, and more desirably, the monomer or the monomers are polymerized under conditions in which the molar ratio of, radical polymerization initiator/ styrene monomer is 0.001/100 to 10/100.