公开(公告)号：CA2368492C

公开(公告)日：2010-05-25

申请号：CA2368492

申请日：2001-03-01

Applicant: JSR CORP

Inventor： MORIKAWA AKIHIKO ,  KANAE KENTAROU ,  NAKANISHI HIDEO ,  MAEDA MINORU

IPC: C08L23/08 ,  C08J9/00 ,  C08J9/10 ,  C08L23/04 ,  C08L23/06 ,  C08L23/16 ,  C08L53/00 ,  C08L53/02

Abstract: A thermoplastic elastomer composition which has a three-dimensional network structure not attributable to chemical crosslinking and is excellent in elastic recovery and flexibility; and a foam which has a high percentage of closed cells, has an even cell shape, and is excellent in elastic recovery, flexibility, and surface appearance. The thermoplastic elastomer composition is obtained by mixing (1) an EPDM, (2) a crystalline polyethylene resin, (3) a block copolymer comprising a crystalline ethylene polymer block and a block with which the EPDM is more compatible than the crystalline polyethylene resin, and an antioxidant in a given proportion and melt-kneading the mixture with a pressure kneader. The foam is obtained by adding both 1 part by weight of a wetting agent and a foaming agent to 100 parts by weight of the thermoplastic elastomer composition, mixing them with stirring, and then extrusion-foaming the resultant mixture.

公开(公告)号：EP1441005A4

公开(公告)日：2005-10-12

申请号：EP02743751

申请日：2002-06-27

Applicant: JSR CORP

Inventor： MORIKAWA AKIHIKO ,  KANAE KENTAROU ,  NAKANISHI HIDEO ,  MAEDA MINORU ,  OKAMOTO TAKAHIRO

IPC: C08J3/24 ,  C08J5/00 ,  C08L9/00 ,  C08L23/00 ,  C08L23/02 ,  C08L23/08 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08L33/04 ,  C08L33/06 ,  C08L33/12 ,  C08L53/02 ,  C08L83/04 ,  C08L91/00 ,  C08L23/04

CPC classification number: C08L23/16 ,  C08L9/00 ,  C08L23/02 ,  C08L23/0869 ,  C08L23/10 ,  C08L23/14 ,  C08L23/142 ,  C08L33/04 ,  C08L33/12 ,  C08L53/025 ,  C08L83/04 ,  C08L91/00 ,  C08L2205/02 ,  C08L2205/035 ,  C08L2207/04 ,  C08L2207/14 ,  C08L2312/00 ,  C08L2666/04 ,  C08L2666/02

Abstract: A thermoplastic elastomer composition which is obtained by dynamically crosslinking a polymer composition comprising a rubber, an olefin resin, etc. and in which the rubber particles have an average particle diameter in a specific range. Due to this constitution, the composition has an excellent balance between mechanical properties, such as flexibility and elastic recovery, and moldability. When the composition contains a (meth)acrylate resin and a hydrogenated diene polymer, it especially has excellent scratch resistance. When the composition contains a maleimide compound, it especially has excellent injection fusibility. When the composition contains an unmodified organopolysiloxane having a specific viscosity and a modified organopolysiloxane, it is excellent especially in initial sliding properties and long-term sliding properties.

公开(公告)号：EP1702951A4

公开(公告)日：2009-08-19

申请号：EP05703357

申请日：2005-01-07

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  MAEDA MINORU ,  ABE YUTAKA

IPC: C08L23/08 ,  C08K5/01 ,  C08L23/04 ,  C08L23/16 ,  C08L53/00 ,  C08L53/02

CPC classification number: C08L23/0815 ,  C08K5/01 ,  C08L23/04 ,  C08L23/16 ,  C08L53/00 ,  C08L53/02 ,  C08L53/025 ,  C08L2205/02 ,  C08L2666/08 ,  C08L2666/24 ,  C08L2666/02 ,  C08L2666/06 ,  C08L2666/04

Abstract: A thermoplastic elastomer composition which comprises (A1) an ethylene/α-olefin copolymer or (X) an oil-extended rubber, (B) a crystalline polyethylene resin, (C) a first hydrogenated block copolymer, and (D) a second hydrogenated block copolymer and may further contain (E1) a mineral-oil softener; and a molded article of the composition. The composition and molded article are excellent in rubber elasticity (compression set), mechanical strength, and moldability and are inhibited from suffering oil bleeding when the mineral-oil softener is contained therein.

Abstract translation: 一种热塑性弹性体组合物，它包含（A1）乙烯/α-烯烃共聚物或（X）充油橡胶，（B）结晶聚乙烯树脂，（C）第一氢化嵌段共聚物和（D）第二氢化 嵌段共聚物，并且可以进一步含有（E1）矿物油软化剂; 和该组合物的模塑制品。 该组合物和成型品在橡胶弹性（压缩形变），机械强度和成型性方面优异，并且当矿物油软化剂被包含在其中时，抑制油渗漏。

公开(公告)号：EP1816163A4

公开(公告)日：2008-01-23

申请号：EP05811307

申请日：2005-11-25

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  KOBAYASHI MASATO ,  MAEDA MINORU ,  TOYOSHIMA TSUKASA ,  TSUNEYOSHI MINORU

IPC: C08L33/06 ,  C08K5/10 ,  C08L83/05 ,  C08L101/00

CPC classification number: C08L33/04 ,  C08L33/10 ,  C08L101/00 ,  C08L2205/02 ,  C08L2312/00 ,  C08L2666/04

Abstract: Disclosed is a thermoplastic elastomer composition obtained by dynamically heat-treating a mixture containing a thermoplastic resin (A) having a melting point of not less than 200˚C and an elastomer (B) having a constitutional unit derived from an ester group-containing monomer in the presence of a polymer (C-1) which is composed only of a (meth)acrylate unit (c-1) and has a weight average molecular weight Mw of 1,000-30,000 and a molecular weight distribution Mw/Mn of 1.0-4.0 and/or a polymer (C-2) which is composed of 5-35 mass% of a (meth)acrylate unit (c-1) and 65-95 mass% of an aromatic vinyl monomer unit (c-2) and has a weight average molecular weight Mw of 1,000-30,000 and a molecular weight distribution Mw/Mn of 1.0-4.0, as a crosslinking agent (C). Such a thermoplastic elastomer composition has a good sea-island structure as a whole and is excellent in cold resistance. Consequently, the thermoplastic elastomer composition is useful as an alternative to acrylic rubbers.

Abstract translation: 本发明公开了一种热塑性弹性体组合物，其通过对含有熔点不低于200℃的热塑性树脂（A）和具有衍生自含酯基单体的结构单元的弹性体（B）的混合物进行动态热处理而获得 在仅由（甲基）丙烯酸酯单元（c-1）构成且重均分子量Mw为1,000〜30,000且分子量分布Mw / Mn为1.0〜10的聚合物（C-1） （甲基）丙烯酸酯单元（c-1）5〜35质量％和芳香族乙烯基单体单元（c-2）65〜95质量％构成的聚合物（C-2） 作为交联剂（C），重均分子量Mw为1,000〜30,000，分子量分布Mw / Mn为1.0〜4.0。 这样的热塑性弹性体组合物作为整体具有良好的海岛结构，并且耐寒性优异。 因此，热塑性弹性体组合物可用作丙烯酸橡胶的替代物。

公开(公告)号：EP1686149A4

公开(公告)日：2006-11-08

申请号：EP04818547

申请日：2004-11-16

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  MAEDA MINORU ,  HIGUCHI MOTOHARU ,  KOUJINA JUNJI

IPC: C08J7/00 ,  B29C35/08 ,  B29K9/00 ,  B29K105/04 ,  B29K105/24 ,  C08J9/04 ,  C08J9/12 ,  C08L23/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/16 ,  C08L53/00 ,  C08L53/02

CPC classification number: C08L53/02 ,  C08J7/123 ,  C08J9/12 ,  C08J2323/08 ,  C08J2353/00 ,  C08J2353/02 ,  C08L23/00 ,  C08L23/04 ,  C08L23/0815 ,  C08L2666/02

Abstract: A molded article of a thermoplastic elastomer composition, the molded article having excellent elasticity and extremely reduced compression set. The molded article of a thermoplastic elastomer composition is obtained by irradiating with electron beams a molded article comprising as the main component a thermoplastic elastomer composition which comprises an ethylene/α-olefin copolymer (1) as a matrix, a crystalline polyethylene resin (2), and a conjugated diene block copolymer (3) and in which the resin (2) and the copolymer (3) have a three-dimensional network structure in the matrix. Also provided is a process for producing a molded article of a thermoplastic elastomer composition which comprises mixing an ethylene/α-olefin copolymer (1), a crystalline polyethylene resin (2), and a conjugated diene block copolymer (3), dynamically treating the mixture with heat to obtain a thermoplastic elastomer composition, molding the thermoplastic elastomer composition, and then irradiating the molding with electron beams.

公开(公告)号：EP1958980A4

公开(公告)日：2010-08-25

申请号：EP06833842

申请日：2006-11-24

Applicant: JSR CORP

Inventor： YAMAMOTO NORIHIRO ,  KANAE KENTAROU ,  MAEDA MINORU

IPC: C08J3/24 ,  C08J9/06 ,  C08L21/00 ,  C08L101/00

CPC classification number: C08J9/06 ,  C08C19/02 ,  C08J3/24 ,  C08J2205/052 ,  C08J2321/00 ,  C08K5/01 ,  C08K5/1345 ,  C08K5/14 ,  C08L9/00 ,  C08L15/00 ,  C08L21/00 ,  C08L23/10 ,  C08L23/16 ,  C08L2312/00 ,  C08L2666/02

Abstract: A thermoplastic elastomer composition having a melt tension of 5.0 cN or more at 210°C and a pulling rate of 2.0 m/min and a compression set of 80% or less when measured according to JIS K6262 at 70°C and 22 hours is provided. The composition is obtained by dynamically treating a mixture of (A) a rubber and (B) a thermoplastic resin (B-1) and/or a thermoplastic resin composition (B-2) with heat in the presence of (C) a crosslinking agent.

公开(公告)号：EP1857501A4

公开(公告)日：2009-02-18

申请号：EP06712583

申请日：2006-01-30

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  MAEDA MINORU ,  ABE YUTAKA ,  KOBAYASHI MASATO

IPC: C08J9/12 ,  B29C45/00 ,  B29C45/70 ,  B29K105/04 ,  C08L23/04 ,  C08L53/00

CPC classification number: C08L23/0815 ,  B29C44/586 ,  B29L2031/3005 ,  C08F297/02 ,  C08J9/0061 ,  C08J9/122 ,  C08J2203/08 ,  C08J2323/02 ,  C08J2453/00 ,  C08L23/04 ,  C08L23/06 ,  C08L53/005 ,  C08L53/025 ,  C08L2203/14 ,  C08L53/00 ,  C08L2666/02 ,  C08L2666/06 ,  C08L2666/24 ,  C08L2666/04

Abstract: A method of forming a molded foam which comprises subjecting a thermoplastic elastomer composition to foam molding with a gas or supercritical fluid, the composition comprising 10-93 parts by mass of an ethylene/α-olefin copolymer (1), 3-30 parts by mass of a crystalline polyethylene resin (2), 3-30 parts by mass of a hydrogenated block copolymer (3) obtained by hydrogenating a given block copolymer, and 1-30 parts by mass of a resin (4) based on a C3 or higher α-olefin [the sum of (1) to (4) is 100 parts by mass] and having a melt flow rate of 5 g/10 min or higher as measured at 230°C under a load of 10 kg and a melt tension less than 3.0 cN as measured at 210°C and a take-off speed of 2 m/sec. Also provided is a molded foam which has a high proportion of closed cells and has cell uniformity. It is excellent in elastic recovery, flexibility, and surface appearance. It is odorless and suitable for recycling. It gives an excellent cushioning feeling.

公开(公告)号：DE60233423D1

公开(公告)日：2009-10-01

申请号：DE60233423

申请日：2002-06-27

Applicant: JSR CORP

Inventor： MORIKAWA AKIHIKO ,  KANAE KENTAROU ,  NAKANISHI HIDEO ,  MAEDA MINORU ,  OKAMOTO TAKAHIRO

IPC: C08J3/24 ,  C08L23/04 ,  C08J5/00 ,  C08L9/00 ,  C08L23/00 ,  C08L23/02 ,  C08L23/08 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08L33/04 ,  C08L33/06 ,  C08L33/12 ,  C08L53/02 ,  C08L83/04 ,  C08L91/00

Abstract: A thermoplastic elastomer composition of the invention, formed by dynamically crosslinking a polymer composition including a rubber and an olefinic resin and having an average particle size of rubber particles within a specific range, shows an excellent balance of mechanical properties such as flexibility and elastic recovery, and a moldability. Also an inclusion of a (meth)acrylate resin and a hydrogenated diene polymer provides a composition particularly excellent in scratch resistance. Also an inclusion of a maleimide compound provides a composition particularly excellent in injection fusibility. Also an inclusion of an undenatured organopolysiloxane of a specific viscosity and a denatured organopolysiloxane provides a composition particularly excellent in initial slidability and durable slidability.

公开(公告)号：AT440123T

公开(公告)日：2009-09-15

申请号：AT02743751

申请日：2002-06-27

Applicant: JSR CORP

Inventor： MORIKAWA AKIHIKO ,  KANAE KENTAROU ,  NAKANISHI HIDEO ,  MAEDA MINORU ,  OKAMOTO TAKAHIRO

IPC: C08J3/24 ,  C08L23/04 ,  C08J5/00 ,  C08L9/00 ,  C08L23/00 ,  C08L23/02 ,  C08L23/08 ,  C08L23/10 ,  C08L23/14 ,  C08L23/16 ,  C08L33/04 ,  C08L33/06 ,  C08L33/12 ,  C08L53/02 ,  C08L83/04 ,  C08L91/00

Abstract: A thermoplastic elastomer composition of the invention, formed by dynamically crosslinking a polymer composition including a rubber and an olefinic resin and having an average particle size of rubber particles within a specific range, shows an excellent balance of mechanical properties such as flexibility and elastic recovery, and a moldability. Also an inclusion of a (meth)acrylate resin and a hydrogenated diene polymer provides a composition particularly excellent in scratch resistance. Also an inclusion of a maleimide compound provides a composition particularly excellent in injection fusibility. Also an inclusion of an undenatured organopolysiloxane of a specific viscosity and a denatured organopolysiloxane provides a composition particularly excellent in initial slidability and durable slidability.

公开(公告)号：CA2377688A1

公开(公告)日：2001-11-01

申请号：CA2377688

申请日：2001-04-19

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  MAEDA MINORU ,  NAKANISHI HIDEO ,  MORIKAWA AKIHIKO

IPC: C08L23/02 ,  C08L23/08 ,  C08L23/10 ,  C08L23/16 ,  C08L91/00

Abstract: A composition which comprises (A) an ethylene/.alpha.-olefin copolymer rubbe r exhibiting an intrinsic viscosity [.eta.] of 3.5 to 6.8 dl/g as determined i n decalin at 135~C, (B) a mineral oil-base softener, (C) a crystalline .alpha. - olefin polymer having a degree of crystallinity of 50 % or above, and (D) a noncrystalline .alpha.-olefin polymer exhibiting a melt viscosity of 50000cP or below at 190~C and a degree of crystallinity of less than 50 % in amounts of 20 to 63 %, 35 to 78 %, 1 to 12 %, and 1 to 12 % by mass respectively bas ed on the total amount of the components (A), (B), (C) and (D), and at least pa rt of which is crosslinked.