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1. EP3578603 - RESIN COMPOSITION AND MOLDED BODY FORMED THEREFROM

Office European Patent Office
Application Number 18748316
Application Date 23.01.2018
Publication Number 3578603
Publication Date 11.12.2019
Publication Kind A4
IPC
C08L 27/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions 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 a halogen; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04containing chlorine atoms
06Homopolymers or copolymers of vinyl chloride
C08L 21/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
21Compositions of unspecified rubbers
C08L 25/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
25Compositions 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 aromatic carbocyclic ring; Compositions of derivatives of such polymers
02Homopolymers or copolymers of hydrocarbons
C08L 27/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions 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 a halogen; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04containing chlorine atoms
C08L 27/24
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions 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 a halogen; Compositions of derivatives of such polymers
22modified by chemical after-treatment
24halogenated
CPC
C08L 27/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions 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 a halogen; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04containing chlorine atoms
C08L 27/24
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
27Compositions 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 a halogen; Compositions of derivatives of such polymers
22modified by chemical after-treatment
24halogenated
Applicants MITSUI CHEMICALS INC
Inventors KANAYA HIROTAKA
KAWABE KUNIAKI
TAKAHASHI YOSUKE
MATSUNAGA KOJI
Designated States
Priority Data 2017018924 03.02.2017 JP
Title
(DE) HARZZUSAMMENSETZUNG UND DARAUS GEFORMTER FORMKÖRPER
(EN) RESIN COMPOSITION AND MOLDED BODY FORMED THEREFROM
(FR) COMPOSITION DE RÉSINE, ET CORPS MOULÉ FORMÉ À PARTIR DE CELLE-CI
Abstract
(EN)
A novel vinyl chloride resin composition having exceptional transparency is provided. This resin composition comprises 3-15 parts by mass of a rubbery impact-absorbing material (B) for which the glass transition point in differential scanning calorimetry does not exceed 0°C, and 0.1-10 parts by mass of a lubricant (C) that satisfies (i)-(iv) below, the content amounts above being indicated relative to 100 parts by mass of a vinyl chloride resin (A) having a chlorine content of 55-75 mass%. (i) The melt viscosity at 200°C is 5-5,000 mPa·s (ii) The softening point is in the range of 60-180°C (iii) The glass transition point (Tg) as measured in DSC is in the range of 0-100°C (iv) A structural unit derived from at least one species selected from the group consisting of styrene, α-methylstyrene, indene, vinyl toluene, and isopropenyl toluene is contained in the molecule in an amount of 50-100 mass%

(FR)
L’invention a pour objet de fournir une nouvelle composition de résine à base de chlorure de vinyle d’une excellente transparence, et un corps moulé, plus particulièrement, un raccord de tuyau, formé à partir de cette composition. La composition de résine de l’invention contient 3 à 15 parties en masse d’un matériau absorbant les chocs (B) de température de transition vitreuse (Tg) selon une analyse calorimétrique différentielle inférieure ou égale à 0°C, et 0,1 à 10 parties en masse d’un lubrifiant (C) satisfaisant les conditions (i) à (iv), pour 100 parties en masse d’une résine à base de chlorure de vinyle (A) de teneur en chlore comprise entre 55 et 75% en masse. (i) une viscosité à l’état fondu à 200°C comprise entre 5 et 5000mP・s, (ii) un point de ramollissement se trouvant dans une plage de 60 à 180°C, (iii) une température de transition vitreuse (Tg) mesurée selon une analyse calorimétrique différentielle (ACD) se trouvant dans une plage de 0 à 100°C, (iv) une teneur en unité structurale dérivée d’au moins un élément choisi dans un groupe constitué d’un styrène, d’un α-méthylstyrène, d’un indène, d’un vinyltoluène et d’unisopropényltoluène, comprise entre 50 et 100% en masse dans chaque molécule.