公开(公告)号：DE60105934T2

公开(公告)日：2005-10-13

申请号：DE60105934

申请日：2001-04-19

Applicant: JSR CORP

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

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

Abstract: The thermoplastic elastomer composition in the present invention comprises an ethylene. alpha -olefinic copolymeric rubber (A) whose intrinsic viscosity Ä eta Ü determined at 135 DEG C in decalin solvent is 3.5 to 6.8 dl/g, a mineral oil-based softener (B), an alpha -olefinic crystalline polymer (C) whose degree of crystallinity is 50% or higher and an alpha -olefinic amorphous polymer (D) whose melt viscosity at 190 DEG C is 50,000 cPs or less and whose degree of crystallinity is less than 50%, and at least a part of a mixture containing 20 to 63% by mass of the (A), 35 to 78% by mass of the (B), 1 to 12% by mass of the (C) and 1 to 12% by mass of the (D), based on 100% by mass of the total of the components (A), (B), (C) and (D), is crosslinked.

公开(公告)号：DE60104959T2

公开(公告)日：2005-08-18

申请号：DE60104959

申请日：2001-03-01

Applicant: JSR CORP

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

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

公开(公告)号：CA2460950A1

公开(公告)日：2003-03-27

申请号：CA2460950

申请日：2002-06-27

Applicant: JSR CORP

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

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

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 especiall y 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：BR0106105A

公开(公告)日：2002-03-12

申请号：BR0106105

申请日：2001-04-19

Applicant: JSR CORP

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

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

Abstract: The thermoplastic elastomer composition in the present invention comprises an ethylene. alpha -olefinic copolymeric rubber (A) whose intrinsic viscosity Ä eta Ü determined at 135 DEG C in decalin solvent is 3.5 to 6.8 dl/g, a mineral oil-based softener (B), an alpha -olefinic crystalline polymer (C) whose degree of crystallinity is 50% or higher and an alpha -olefinic amorphous polymer (D) whose melt viscosity at 190 DEG C is 50,000 cPs or less and whose degree of crystallinity is less than 50%, and at least a part of a mixture containing 20 to 63% by mass of the (A), 35 to 78% by mass of the (B), 1 to 12% by mass of the (C) and 1 to 12% by mass of the (D), based on 100% by mass of the total of the components (A), (B), (C) and (D), is crosslinked.

公开(公告)号：AU3602301A

公开(公告)日：2001-09-12

申请号：AU3602301

申请日：2001-03-01

Applicant: JSR CORP

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

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

公开(公告)号：DE60105934D1

公开(公告)日：2004-11-04

申请号：DE60105934

申请日：2001-04-19

Applicant: JSR CORP

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

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

Abstract: The thermoplastic elastomer composition in the present invention comprises an ethylene. alpha -olefinic copolymeric rubber (A) whose intrinsic viscosity Ä eta Ü determined at 135 DEG C in decalin solvent is 3.5 to 6.8 dl/g, a mineral oil-based softener (B), an alpha -olefinic crystalline polymer (C) whose degree of crystallinity is 50% or higher and an alpha -olefinic amorphous polymer (D) whose melt viscosity at 190 DEG C is 50,000 cPs or less and whose degree of crystallinity is less than 50%, and at least a part of a mixture containing 20 to 63% by mass of the (A), 35 to 78% by mass of the (B), 1 to 12% by mass of the (C) and 1 to 12% by mass of the (D), based on 100% by mass of the total of the components (A), (B), (C) and (D), is crosslinked.

公开(公告)号：CA2368492A1

公开(公告)日：2001-09-07

申请号：CA2368492

申请日：2001-03-01

Applicant: JSR CORP

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

IPC: C08J9/00 ,  C08L23/04 ,  C08L23/08 ,  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 mixtur e with a pressure kneader. The foam is obtained by adding both 1 part by weigh t 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：EP1712591A4

公开(公告)日：2008-06-04

申请号：EP05710041

申请日：2005-02-03

Applicant: JSR CORP

Inventor： KANAE KENTAROU ,  MAEDA MINORU ,  TSUTSUMI MASAMI ,  HASEGAWA KENJI

IPC: C08L23/00 ,  C08J3/24 ,  C08L15/00 ,  C08L23/02 ,  C08L23/08

CPC classification number: C08L15/00 ,  C08C19/02 ,  C08L23/02 ,  C08L23/08 ,  C08L2666/02 ,  C08L2666/06

Abstract: A first thermoplastic elastomer composition which comprises 100 parts by mass of the sum of 5 to 60 mass % of [A] an ethylene·α-olefin based copolymer having a limiting viscosity of 3.5 dl/g or more as measured in a decalin solvent at 135°C, 1 to 20 mass % of [B] a polyolefin based resin and 30 to 94 mass % of [C] a mineral oil based softening agent (provided that the sum of [A], [B] and [C] is 100 mass %), and 0.1 to 50 parts by mass of a hydrogenated diene based polymer, wherein at least the above [A] an ethylene·α-olefin based copolymer and [B] a polyolefin based resin have been subjected to a dynamic heat treatment in the presence of a cross-linking agent; or a second thermoplastic elastomer composition obtained by substituting [A] component of the first thermoplastic elastomer composition with an oil-extended rubber consisting of 20 to 80 mass % of [A1] an ethylene·α-olefin based copolymer having a limiting viscosity of 3.5 dl/g or more as measured in a decalin solvent at 135°C and 20 to 80 mass % of [C1] a mineral oil based softening agent (provided that the sum of [A1] and [C1] is 100 mass %). The above thermoplastic elastomer composition is excellent in processability, has a low hardness, is free from the bleeding of a softening agent such as a mineral oil, has softness, is excellent in rubbery elastic properties (rebound, compression set) and further can be recycled.

公开(公告)号：EP1195404A4

公开(公告)日：2003-07-16

申请号：EP01923969

申请日：2001-04-19

Applicant: JSR CORP

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

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

CPC classification number: C08L23/0815 ,  C08L23/02 ,  C08L23/10 ,  C08L23/16 ,  C08L91/00 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/04 ,  C08L2207/14 ,  C08L2666/04

Abstract: A composition which comprises (A) an ethylene/α-olefin copolymer rubber exhibiting an intrinsic viscosity [θ] of 3.5 to 6.8 dl/g as determined in decalin at 135°C, (B) a mineral oil-base softener, (C) a crystalline α-olefin polymer having a degree of crystallinity of 50 % or above, and (D) a noncrystalline α-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 based on the total amount of the components (A), (B), (C) and (D), and at least part of which is crosslinked.

公开(公告)号：EP1197521A4

公开(公告)日：2003-04-16

申请号：EP01908197

申请日：2001-03-01

Applicant: JSR CORP

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

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

CPC classification number: C08J9/0061 ,  C08J2323/04 ,  C08J2423/00 ,  C08L23/04 ,  C08L23/0815 ,  C08L23/16 ,  C08L53/00 ,  C08L53/005 ,  C08L53/025 ,  C08L2203/14 ,  C08L2312/00 ,  C08L2666/04 ,  C08L2666/24

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.