Invention Application
- Patent Title: MODIFIED POLYSTYRENE RESIN PARTICLES AND MANUFACTURING METHOD THEREFOR, EXPANDABLE PARTICLES AND MANUFACTURING METHOD THEREFOR, PRE-EXPANDED PARTICLES, AND EXPANDED MOLDED ARTICLE
- Patent Title (中): 改性聚苯乙烯树脂颗粒及其制备方法,其可膨胀颗粒及其制造方法,预扩展颗粒和膨胀成型品
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Application No.: US14778777Application Date: 2014-03-25
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Publication No.: US20160053100A1Publication Date: 2016-02-25
- Inventor: Shingo TERASAKI , Naoya MORISHIMA
- Applicant: SEKISUI PLASTICS CO., LTD.
- Applicant Address: JP Osaka
- Assignee: SEKISUI PLASTICS CO., LTD.
- Current Assignee: SEKISUI PLASTICS CO., LTD.
- Current Assignee Address: JP Osaka
- Priority: JP2013-067039 20130327
- International Application: PCT/JP2014/058251 WO 20140325
- Main IPC: C08L25/06
- IPC: C08L25/06 ; C08J9/14

Abstract:
Modified polystyrene cross-linked resin particles in which polyacrylic acid ester-based resin fine particles having an average particle diameter in the range of 30 to 1,000 nm are dispersed in polystyrene-based resin particles, wherein the content of gel component fraction insoluble to toluene when about 1 g of the modified polystyrene-based cross-linked resin particles is dissolved in 50 ml of toluene at 25° C. is in the range of from 5 to 25% and the gel component shows a degree of swelling in the range of from 10 to 20 in toluene at 25° C.
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