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1. (WO2018142973) THERMOPLASTIC RESIN COMPOSITION, INNER LINER, AND PNEUMATIC TIRE
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Pub. No.: WO/2018/142973 International Application No.: PCT/JP2018/001659
Publication Date: 09.08.2018 International Filing Date: 19.01.2018
IPC:
C08L 29/04 (2006.01) ,B60C 5/14 (2006.01) ,C08L 23/28 (2006.01) ,C08L 53/02 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
29
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
02
Homopolymers or copolymers of unsaturated alcohols
04
Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
5
Inflatable pneumatic tyres or inner tubes
12
without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
14
with impervious liner or coating on the inner wall of the tyre
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
26
modified by chemical after-treatment
28
by reaction with halogens or halogen-containing compounds
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
53
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
02
of vinyl aromatic monomers and conjugated dienes
Applicants: THE YOKOHAMA RUBBER CO., LTD.[JP/JP]; 36-11, Shimbashi 5-chome, Minato-ku, Tokyo 1058685, JP
Inventors: SATO, Shun; JP
Agent: AOKI, Atsushi; JP
MITSUHASHI, Shinji; JP
EBISUDA, Hisanori; JP
DENO, Satoru; JP
TAKAHASHI, Masatoshi; JP
EBITANI, Atsushi; JP
Priority Data:
2017-01694901.02.2017JP
Title (EN) THERMOPLASTIC RESIN COMPOSITION, INNER LINER, AND PNEUMATIC TIRE
(FR) COMPOSITION DE RÉSINE THERMOPLASTIQUE, REVÊTEMENT INTÉRIEUR, ET PNEU
(JA) 熱可塑性樹脂組成物、インナーライナーおよび空気入りタイヤ
Abstract:
(EN) Provided is a thermoplastic resin composition from which an inner liner for pneumatic tires that decreases little in gas-barrier property upon fatigue can be produced. The thermoplastic resin composition comprises a matrix phase, which comprises an ethylene/vinyl alcohol copolymer (A), and a dispersed phase, which comprises a brominated isobutylene/p-methylstyrene copolymer (B) and an acid-modified styrene/ethylene/butylene/styrene copolymer (C), and is characterized by satisfying 0.02≤(WB×BB)×(WC×SC)/(WA×VA)≤0.85 where WA, WB, and WC are the weight proportions of the components (A), (B), and (C), respectively, to the total weight of the polymer components contained in the thermoplastic resin composition, VA (wt%) is the vinyl alcohol content in the component (A), BB (wt%) is the p-bromomethylstyrene content in the component (B), and SC (wt%) is the styrene content in the component (C).
(FR) L'invention concerne une composition de résine thermoplastique à partir de laquelle un revêtement intérieur pour des bandages pneumatiques dont la propriété de barrière aux gaz diminue peu sous l'effet de la fatigue peut être produite. La composition de résine thermoplastique comprend une phase matricielle, qui comprend un copolymère éthylène/alcool vinylique (A), et une phase dispersée, qui comprend un copolymère isobutylène/p-méthylstyrène bromé (B) et un copolymère styrène/éthylène/butylène/styrène modifié à l'acide (C), et est caractérisé en ce qu'il satisfait 0,02 ≤ (WB×BB) × (WC×SC)/(WA×VA) ≤ 0,85 où WA, WB, et WC sont les proportions en poids des composants (A), (B), et (C), respectivement, par rapport au poids total des composants polymères contenus dans la composition de résine thermoplastique, VA (% en poids) est la teneur en alcool vinylique dans le composant (A), BB (% en poids) est la teneur en p-bromométhylstyrène dans le composant (B), et SC (% en poids) est la teneur en styrène dans le composant (C).
(JA) 疲労によるガスバリア性の低下が少ない空気入りタイヤ用インナーライナーを製造することができる熱可塑性樹脂組成物を提供する。エチレン-ビニルアルコール共重合体(A)を含むマトリックス相と臭素化イソブチレンパラメチルスチレン共重合体(B)および酸変性スチレン-エチレン-ブチレン-スチレン共重合体(C)を含む分散相とからなる熱可塑性樹脂組成物であって、熱可塑性樹脂組成物中のポリマー成分の合計重量に対する(A)、(B)、(C)それぞれの重量の比W、W、W、(A)中のビニルアルコール含量V(重量%)、(B)中のp-ブロモメチルスチレン含量B(重量%)、および(C)中のスチレン含量S(重量%)が0.02≦(W×B)×(W×S)/(W×V)≦0.85を満たすことを特徴とする。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)