POLYARYLENE SULFIDE RESIN COMPOSITION AND INSERT MOLDED ARTICLE

• Main Author: YORIFUJI DAISUKE
• Format: Patent
• Language: English; Korean
• Published: 28.07.2017
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

기밀성이 우수한 인서트 성형품을 제조 가능하게 하는 폴리아릴렌설파이드 수지 조성물과, 당해 폴리아릴렌설파이드 수지 조성물을 이용하여 제조되는 인서트 성형품, 을 제공한다. (A) 폴리아릴렌설파이드 수지와, (B) 분립상 충전제와, (C) 섬유상 충전제와,-불포화산의 글리시딜에스테르에서 유래하는 구성단위를 포함하는 (D) 에폭시기 함유 올레핀계 공중합체, 를 함유하고, 당해 조성물의 전체질량에 대한,-불포화산의 글리시딜에스테르에서 유래하는 구성단위의 질량 비율, 및 표면 거칠기(Ra)가 0.05㎛인 금형을 이용하여 소정의 조건으로 사출 성형된 성형품의, 수지의 유동 방향의 수축율과 수지의 유동 방향에 대하여 직각 방향의 수축율과의 평균치와, 표면 거칠기가, 각각 소정의 범위내로 조정된 폴리아릴렌설파이드 수지 조성물을 이용한다. Provided are: a polyarylene sulfide resin composition which enables manufacture of insert molded articles having excellent airtightness; and insert molded articles manufactured using the polyarylene sulfide resin composition. The polyarylene sulfide resin composition, comprises an (A) polyarylene sulfide resin, a (B) powdery or granular filler, a (C) fibrous filler, and a (D) epoxy group-containing olefin based copolymer comprising a structural unit derived from a glycidyl ester of an ±,²-unsaturated acid, is used. The polyarylene sulfide resin composition is adjusted so that the ratio of the mass of the structural unit derived from the glycidyl ester of the ±,²-unsaturated acid relative to the total mass of the composition is within a predetermined range and so that when an insert molded article is injection molded under predetermined conditions using a die having a surface roughness Ra of 0.05 µm, the mean value between shrinkage rate of that insert molded article in a flow direction of the resin and shrinkage rate of that insert molded article in a direction to the flow direction of the resin and the surface roughness of that insert molded article are within respective predetermined ranges.