Processing

Please wait...

Settings

Settings

Goto Application

1. WO2022050098 - ETHYLENE/PROPYLENE COPOLYMER RUBBER COMPOSITION

Publication Number WO/2022/050098
Publication Date 10.03.2022
International Application No. PCT/JP2021/030733
International Filing Date 23.08.2021
IPC
C08K 5/10 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5Use of organic ingredients
04Oxygen-containing compounds
10Esters; Ether-esters
C08K 5/3447 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5Use of organic ingredients
16Nitrogen-containing compounds
34Heterocyclic compounds having nitrogen in the ring
3442having two nitrogen atoms in the ring
3445Five-membered rings
3447condensed with carbocyclic rings
C08L 23/16 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
16Ethene-propene or ethene-propene-diene copolymers
F16J 15/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
02between relatively-stationary surfaces
06with solid packing compressed between sealing surfaces
10with non-metallic packing
CPC
C08K 5/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
5Use of organic ingredients
04Oxygen-containing compounds
10Esters; Ether-esters
C08K 5/3447
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
5Use of organic ingredients
16Nitrogen-containing compounds
34Heterocyclic compounds having nitrogen in the ring
3442having two nitrogen atoms in the ring
3445Five-membered rings
3447condensed with carbocyclic rings
C08L 23/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
16Elastomeric; ethene-propene or ethene-propene-diene copolymers, ; e.g. EPR and EPDM rubbers
F16J 15/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
02between relatively-stationary surfaces
06with solid packing compressed between sealing surfaces
10with non-metallic packing
Applicants
  • NOK株式会社 NOK CORPORATION [JP]/[JP]
Inventors
  • 小林 篤史 KOBAYASHI Atsushi
Agents
  • 吉田 和子 YOSHIDA Kazuko
  • 吉田 俊夫 YOSHIDA Toshio
Priority Data
2020-14726802.09.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ETHYLENE/PROPYLENE COPOLYMER RUBBER COMPOSITION
(FR) COMPOSITION DE CAOUTCHOUC COPOLYMÈRE ÉTHYLÈNE/PROPYLÈNE
(JA) エチレン・プロピレン系共重合ゴム組成物
Abstract
(EN) An ethylene/propylene copolymer rubber composition which comprises an ethylene/propylene copolymer rubber and, added thereto, a primary antioxidant, a secondary antioxidant, and a plasticizer, wherein a benzoimidazole-based antioxidant (A) is contained as the secondary antioxidant in an amount of 0.3 parts by weight or larger and an ether-ester-based plasticizer (B) is contained as the plasticizer in an amount less than 10 parts by weight, per 100 parts by weight of the ethylene/propylene copolymer rubber, the (B)/(A) ratio being 4.0 or higher. The ethylene/propylene copolymer rubber composition has the excellent property of not fouling molds.
(FR) L'invention concerne une composition de caoutchouc copolymère éthylène/propylène qui comprend un caoutchouc copolymère éthylène/propylène auquel sont ajoutés un antioxydant primaire, un antioxydant secondaire et un plastifiant, un antioxydant à base de benzoimidazole (A) étant présent en tant qu'antioxydant secondaire à raison de 0,3 partie en poids ou plus et un plastifiant à base d'éther-ester (B) étant présent en tant que plastifiant à raison de moins de 10 parties en poids, pour 100 parties en poids du caoutchouc copolymère éthylène/propylène, le rapport (B)/(A) étant égal ou supérieur à 4,0. La composition de caoutchouc copolymère éthylène/propylène présente la remarquable propriété de ne pas encrasser les moules.
(JA) エチレン・プロピレン系共重合ゴムに1次老化防止剤、2次老化防止剤および可塑剤を添加したエチレン・プロピレン系共重合ゴム組成物において、エチレン・プロピレン系共重合ゴム100重量部当り、2次老化防止剤としてベンゾイミダゾール系老化防止剤(A)を0.3重量部以上、可塑剤としてエーテルエステル系可塑剤(B)を10重量部未満含有し、かつ(B)/(A)比が4.0倍以上である、耐金型汚染性にすぐれたエチレン・プロピレン系共重合ゴム組成物。
Latest bibliographic data on file with the International Bureau