公开(公告)号：JP2001114905A

公开(公告)日：2001-04-24

申请号：JP29737499

申请日：1999-10-19

Applicant: DAICEL CHEM

Inventor： NISHIMURA KENJI ,  KAKUMOTO SATOSHI ,  TANIGAWA MITSUYO

IPC: C08J3/28 ,  C08G63/08 ,  C08J5/00 ,  C08L67/04 ,  C08L101/00 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a polylactone having a high melt tension and improved in moldability, its resin composition and its molded article. SOLUTION: In the method for manufacturing a branched polylactone, a polylactone is subjected to a radiation treatment so that the inclination (α) of a plotted straight line expressed by logarithm (lnλn) of nonlinear parameter λn and elongation strain ε is in the range of 0.15-4.0 in the elongation viscosity measurement at the temperature 10 deg.C higher than the melting point. The polylactone composition comprises 100 parts by mass of the resin component comprising 5-100 mass % branched polylactone and 95-0 mass % linear polylactone and/or another thermoplastic resin and 0-70 parts by mass of fillers. The molded article is obtained by molding the composition.

公开(公告)号：JPS6256143A

公开(公告)日：1987-03-11

申请号：JP19723585

申请日：1985-09-06

Applicant: DAICEL CHEM

Inventor： IKEDA NAOKI ,  KAKUMOTO SATOSHI

IPC: B32B37/00 ,  C08J5/04 ,  C08J5/24

公开(公告)号：JP2003313314A

公开(公告)日：2003-11-06

申请号：JP2002118406

申请日：2002-04-19

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

Inventor： NAKADA KOJI ,  OOMAE HITOMI ,  KAKUMOTO SATOSHI

IPC: C08J5/18

Abstract: PROBLEM TO BE SOLVED: To provide a method for evaluating fracture toughness of a film that has correlation with the practical use conditions and that enables quantitative evaluation.
SOLUTION: The method for evaluating fracture toughness of a film comprises subjecting a film with a thickness of 10-100 μm to a tensile test or a tearing test at a test speed of 5 m/min-300 m/min using a test specimen of the film in any of the forms as follows: (i) a form of the film having a specific location on which a stress is allowed to be concentrated when the film undergoes pulling or tearing and capable of observing the phenomenon of elongation or tearing selectively on the specific location; (ii) a form of No.2 dumbbell as described in JIS K7113; (iii) a form of an axial symmetry formed by symmetrically arranging two isosceles trapezoids with respect to the mating upper bases of the two isosceles trapezoids satisfying the condition: 2/5 ≤ a length of the upper base/a length of the lower base

Abstract translation: 要解决的问题：提供一种评价与实际使用条件相关的膜的断裂韧性的方法，并且能够进行定量评价。 解决方案：用于评估膜的断裂韧性的方法包括使用厚度为10-100μm的膜以5m / min-300m / min的测试速度进行拉伸试验或撕裂试验，使用 以下任何形式的膜的试样：（i）具有特定位置的膜的形式，当薄膜经历拉伸或撕裂时能够使应力集中，并且能够观察伸长现象或 在特定位置选择性地撕裂; （ii）JIS K7113中所述的2号哑铃形式; （iii）通过将两个等腰梯形相对于两个等腰梯形的匹配上部基座对称地布置成两个等腰梯形形成的轴向对称形式，其满足以下条件：2/5≤上部底部的长度/下部基座的长度< 4/5; 和（iv）如JIS K7128-A方法中所述的切口条的形式，并且通过将低拉伸速度下的膜的延伸率与膜的拉伸速度与拉伸速度的拉伸速度进行比较来评价膜的断裂韧性，或者通过 以较低的撕裂速度将膜的撕裂强度与膜的撕裂强度进行比较。 版权所有（C）2004，JPO

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：JPH03153750A

公开(公告)日：1991-07-01

申请号：JP29294989

申请日：1989-11-10

Applicant: DAICEL CHEM

Inventor： ONO ETSUKO ,  KAKUMOTO SATOSHI ,  ENDO TOSHIRO

IPC: C08L33/06 ,  C08F2/46 ,  C08F2/48 ,  C08F2/50 ,  C08L33/04 ,  C08L33/14 ,  C08L55/00 ,  C09D4/06 ,  G03F7/033

Abstract: PURPOSE:To prepare the title compsn. offering an excellent adhesion to copper and an excellent resist pattern by compounding a specific thermoplastic polymer, a specific addition-polymerizable compd., and a photopolymn. initiator. CONSTITUTION:A photopolymerizable compsn. comprising a thermoplastic polymer having a polycaprolactone side chain and pref. comprising a copolymer consisting of a monomer of formula I (wherein R1 to R7 are each H or alkyl; and (n) is 1-5) having a polycaprolactone structure and a vinyl monomer of formula II (wherein R8 to R11 are each H, halogen, or an alkyl, arom, ring, alkylester, or carboxyl group); an addition-polymerizable compd. which is solid or liq. at normal temp. and pressure (e.g. trimethylolpropane triacrylate); and a photopolymn. initiator (e.g. 2,4-diethylthioxanthone).

公开(公告)号：JP2002294045A

公开(公告)日：2002-10-09

申请号：JP2001101242

申请日：2001-03-30

Applicant: DAICEL CHEM

Inventor： NAKADA KOJI ,  SHIMIZU KUNIO ,  KAKUMOTO SATOSHI

IPC: C08J5/00 ,  B29C45/00 ,  C08G63/91 ,  C08K3/00 ,  C08L3/02 ,  C08L67/00 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a resin composition having excellent mechanical properties and biodegradability, especially enabling a cost of the whole resin composition to be reduced and allowing the rate of collapsing the shape to be controlled without damaging the properties of an aliphatic polyester copolymer capable of excellently controlling the biodegrading rate. SOLUTION: This aliphatic polyester copolymer/starch-blended resin composition is obtained by blending an aliphatic polyester copolymer (having 25,000 weight average molecular weight) constituted by linking repeating units (P) represented by the formula (1): (-CO-R -COO-R -O-), R is a 1-12C bivalent aliphatic group; and R is a 2-12C bivalent aliphatic group), and repeating units (Q) represented by the formula (2): (-CO-R -O-), R is a 1-10C bivalent aliphatic group) with 0.1-5 pts.wt. linking agent such as a diisocyanate based on 100 pts.wt. copolymer, with a starch.

公开(公告)号：JPH052000B2

公开(公告)日：1993-01-11

申请号：JP22148185

申请日：1985-10-04

Applicant: DAICEL CHEM

Inventor： IKEDA NAOKI ,  KAKUMOTO SATOSHI

IPC: C08J5/24 ,  C08F218/18 ,  H05K3/38

公开(公告)号：JPS6475521A

公开(公告)日：1989-03-22

申请号：JP23238287

申请日：1987-09-18

Applicant: DAICEL CHEM

Inventor： TAKAHASHI IKUO ,  SUGANO TATSUYA ,  KAKUMOTO SATOSHI

IPC: C08G64/00

Abstract: PURPOSE:To obtain the titled polymer of high surface hardness, useful for molded articles etc., by irradiating electron beams on an aromatic polycarbonate polymer prepared by carbonate linkage of 2,2-bis-(4-hydroxy-3-methylphenyl) propane. CONSTITUTION:First, 2,2-bis-(4-hydroxy-3-methylphenyl)propane and diphenyl carbonate are melted by heating in an inert gas atmosphere followed by adding potassium boron hydride as the catalyst for conversion into carbonate, to the melt to carry out polycondensation by heating under reduced pressure. Thence, the resultant polymer is taken out under an inert gas atmosphere and cooled. This polymer is then made into a pressed sheet through e.g. hot press quenching process followed by electron beam irradiation on this sheet, thus obtaining the objective polymer of formula (n is degree of polymerization).

公开(公告)号：JP2003285361A

公开(公告)日：2003-10-07

申请号：JP2002093325

申请日：2002-03-28

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

Inventor： NAKADA KOJI ,  OOMAE HITOMI ,  KAKUMOTO SATOSHI

IPC: A01G13/00 ,  B29C47/06 ,  B29C47/14 ,  B29C59/04 ,  B29K67/00 ,  C08J5/18 ,  C08L3/00 ,  C08L67/00 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To improve tear resistance of a film, especially a multi-film for agriculture.
SOLUTION: An embossed monolayered or co-extruded film comprising an aliphatic polyester resin is manufactured by processes comprising extruding melted resins from a T-die, drawing it into a specified width, and forming an emboss by projections provided on a touch roll or an approach roll. An embossed multi-film for agriculture is manufactured by the processes comprising extruding the melted resins from the T-die, drawing it into the specified width, and forming the emboss by the projections provided on the touch roll or the approach roll.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提高膜的抗撕裂性，特别是用于农业的多层膜。 解决方案：包括脂肪族聚酯树脂的压花单层或共挤出薄膜通过以下工艺制造，该方法包括从T模挤出熔融树脂，将其拉伸至特定宽度，并通过设置在触摸辊上的突起形成浮雕 或接近卷。 用于农业的压花多层膜通过以下方法制造，该方法包括从T模挤出熔化的树脂，将其拉伸到指定的宽度，并通过设置在接触辊或接近辊上的突起形成压花。 版权所有（C）2004，JPO

公开(公告)号：JP2002293901A

公开(公告)日：2002-10-09

申请号：JP2001101217

申请日：2001-03-30

Applicant: DAICEL CHEM

Inventor： TERANISHI TADASHI ,  KATAYAMA HIROSHI ,  KAKUMOTO SATOSHI

IPC: C08G63/66 ,  C08G63/91 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a biodegradable aliphatic polyester copolymer having practical physical properties and also capable of forming a film, and method for producing the same capable of producing it industrially. SOLUTION: This biodegradable aliphatic polyester copolymer has molecular chains consisting of the following recurring units (P), (Q) and (R), or is obtained by linking low molecular weight aliphatic polyester copolymers with isocyanate, etc. (P): (COR COOR O)p (wherein, R is a 1-12C divalent aliphatic group; R is a 2-12C divalent aliphatic group), Q: (COR O)q [wherein, R is a 1-10C divalent aliphatic group; and (q) is 0.02-0.30 range], R: (COR COOR O)r [wherein, R is a 1-20C divalent aliphatic group; R is a 2-20C divalent aliphatic group containing at least >=1 ether linkage or alicyclic type skeleton in its main chain; and (r) is 0.001-0.40 range].