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1. WO2021029263 - INJECTION MOLDED ARTICLE AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2021/029263
Publication Date 18.02.2021
International Application No. PCT/JP2020/029745
International Filing Date 04.08.2020
IPC
B29C 45/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
18Feeding the material into the injection moulding apparatus
B29C 45/78 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
78of temperature
C08K 7/02 2006.01
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
7Use of ingredients characterised by shape
02Fibres or whiskers
C08L 23/12 2006.01
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
10Homopolymers or copolymers of propene
12Polypropene
C08L 67/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
C08J 5/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
04Reinforcing macromolecular compounds with loose or coherent fibrous material
Applicants
  • 住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED [JP]/[JP]
Inventors
  • 杉山 貴之 SUGIYAMA Takayuki
  • 田村 翼 TAMURA Tasuku
Agents
  • 棚井 澄雄 TANAI Sumio
  • 佐藤 彰雄 SATO Akio
  • 鈴木 慎吾 SUZUKI Shingo
  • 加藤 広之 KATO Hiroyuki
Priority Data
2019-14815509.08.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) INJECTION MOLDED ARTICLE AND METHOD FOR MANUFACTURING SAME
(FR) ARTICLE MOULÉ PAR INJECTION ET SON PROCÉDÉ DE FABRICATION
(JA) 射出成形品及びその製造方法
Abstract
(EN)
The present invention relates to an injection molded article that contains 65-95 parts by mass of a thermoplastic resin and 5-35 parts by mass of a fibrous filler, wherein: the thermoplastic resin contains at least one type of substance selected from the group consisting of polypropylenes and liquid crystal polyesters in a quantity that is equal to or greater than 10 mass% relative to the total quantity of the thermoplastic resin; and the standard deviation of the amount of the fibrous filler in the injection molded article is greater than 1.0 mass%.
(FR)
La présente invention concerne un article moulé par injection qui contient 65 à 95 parties en masse d'une résine thermoplastique et 5 à 35 parties en masse d'une charge fibreuse. Dans l'invention, la résine thermoplastique contient au moins un type de substance choisie dans le groupe constitué par les polypropylènes et les polyesters à cristaux liquides en une quantité qui est supérieure ou égale à 10 % en masse par rapport à la quantité totale de la résine thermoplastique ; et l'écart-type de la quantité de charge fibreuse dans l'article moulé par injection est supérieur à 1,0 % en masse.
(JA)
本発明は、熱可塑性樹脂65~95質量部と、繊維状フィラー5~35質量部とを含有する射出成形品であって、熱可塑性樹脂が、ポリプロピレン及び液晶性ポリエステルからなる群より選ばれる少なくとも1種を、熱可塑性樹脂の総量に対して10質量%以上含み、射出成形品中の繊維状フィラーの充填量の標準偏差が、1.0質量%を超える、射出成形品に関する。
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