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公开(公告)号：DE69926268T2
公开(公告)日：2006-05-24
申请号：DE69926268
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , ARAMOMI YUKIO , YAMAGATA HIROYUKI
Abstract: The present invention provides a process for producing a molded foam article of a crystalline aromatic polyester resin. The process is characterized by heating the surface temperature of a mold for cavity-molding to the temperature within a range of from ( Tg + 35 ) to ( Tg + 57 ) DEG C (Tg is a glass transition temperature of the crystalline aromatic polyester resin prepuffs), thereby tomoldprepuffs, and cooling the surface of the mold to a temperature not lowered than Tg for at least 20 seconds.
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公开(公告)号：DE69927615D1
公开(公告)日：2006-02-16
申请号：DE69927615
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , NAKAYAMA SHINPEI
Abstract: The present invention provides a crystalline aromatic polyester resin prepuff which is superior in foaming fusion during cavity-molding, and a molded foam article and a-laminated molded foam article, using the prepuff, wherein its fusion ratio and mechanical strength are particulary improved. The prepuff is formed from a crystalline aromatic polyester resin, wherein a bulk density is from 0.01 to 1.0 g/cm and a crystallization' peak temperature is from 130 to 180 DEG C. The molded foam article is prepared by molding further expanding and fusing the prepuffs in a mold cavity, while the laminated molded foam article is formed by laminating the molded foam article directory to the film or sheet of the aromatic polyester resin.
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公开(公告)号：AT550374T
公开(公告)日：2012-04-15
申请号：AT07831084
申请日：2007-10-25
Applicant: SEKISUI PLASTICS
Inventor： MORIOKA IKUO , TSUTSUI YASUTAKA , MATSUMURA HIDEYASU
Abstract: Expandable polystyrenic resin particles having superior resistance to cracking of a molded foam product, having superior retention of blowing agent and maintaining expandability over a long period of time, a production process thereof, and a molded foam product are provided. These expandable polystyrenic resin particles contain a volatile blowing agent in polystyrenic resin particles obtained by impregnating and polymerizing a styrenic monomer in polyolefin resin particles to form a polystyrenic resin, wherein together with the styrenic monomer being used at 140 to 600 parts by weight to 100 parts by weight of the polyolefin resin particles, the average thickness of the surface layer observed in scanning electron micrographs obtained by immersing sections cut into halves through the center from the surface of the resin particles in tetrahydrofuran followed by extracting the polystyrenic resin component and capturing cross-sections of said sections is 15 to 150 μm, and the volatile blowing agent is contained at 5.5 to 13.0% by weight.
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公开(公告)号：AT450561T
公开(公告)日：2009-12-15
申请号：AT04747876
申请日：2004-07-23
Applicant: SEKISUI PLASTICS
Inventor： INADA NAOKUNI , MATSUMURA HIDEYASU , TSUTSUI YASUTAKA , MORIOKA IKUO
Abstract: A pre-expanded beads of olefin-modified polystyrene-based resin comprising a pre-expanded beads of a polystyrene-based resin modified with a polyolefin-based resin, wherein a styrene-based monomer forming a polystyrene-based resin in the beads is used in the range of 100 to 1,000 parts by weight relative to 100 parts by weight of a polyolefin-based resin, a bulk density of each bead is 0.012 to 0.20 g/cm 3 , and an absorbance ratio at 698 cm -1 and 2850 cm -1 (D 698 /D 2850 ) obtained from an infrared absorption spectrum of each bead surface measured by ATR method infrared spectroscopy is in the range of 0.1 to 2.5.
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5.发明专利
公开(公告)号：CA2236791C
公开(公告)日：2002-05-14
申请号：CA2236791
申请日：1996-11-07
Applicant: SEKISUI PLASTICS
Inventor： MORIOKA IKUO , ARAMOMI YUKIO , SHIMADA MUTSUHIKO
Abstract: A foamed styrene resin material has a density .rho. of 0.02 to 0.008 and a melt tension of the styrene resin of 5 to 40 gf. The relation between an average cell diameter d (.rho.m) and the density .rho. is given by the expression: and a relation between a thermal conductivity .lambda. (kcal/m.cndot.h.cndot. .degree.C) and the density .rho. given by the expression: Accordingly, the foamed styrene resin material has a low thermal conductivity and excellent insulating property in spite of a low density (high expansion ratio foam) thereof.
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Patent Agency Ranking
公开(公告)号：AU1685000A
公开(公告)日：2000-07-03
申请号：AU1685000
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , NAKAYAMA SHINPEI
Abstract: The present invention provides a crystalline aromatic polyester resin prepuff which is superior in foaming fusion during cavity-molding, and a molded foam article and a-laminated molded foam article, using the prepuff, wherein its fusion ratio and mechanical strength are particulary improved. The prepuff is formed from a crystalline aromatic polyester resin, wherein a bulk density is from 0.01 to 1.0 g/cm and a crystallization' peak temperature is from 130 to 180 DEG C. The molded foam article is prepared by molding further expanding and fusing the prepuffs in a mold cavity, while the laminated molded foam article is formed by laminating the molded foam article directory to the film or sheet of the aromatic polyester resin.
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公开(公告)号：CA2356636A1
公开(公告)日：2000-06-22
申请号：CA2356636
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , MATSUMURA HIDEYASU , FUJISHIMA MINORU , UENO HIROYUKI , NAKAYAMA SHINPEI , MORIOKA IKUO
Abstract: Pre-expanded particles of crystalline aromatic polyester-based resin which i s excellent in expansion fusion bonding during expansion molding, and an in-mo ld expanded product being improved particularly in fusion bonding ratio and mechanical strength and an expanded laminate using the pre-expanded particle s. The pre-expanded particles have a bulk density of 0.01 to 1.0 g/cm3 and a pe ak temperature of crystallization of 130 to 180~C, and can be suitably used in in- mold expansion molding. The in-mold expanded product is formed by the in-mol d expansion molding of the above pre-expanded particles, and the expanded laminate is prepared by laminating a film or sheet of an aromatic polyester- based resin directly on the above in-mold expanded product and forming them in one piece.
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公开(公告)号：DE69927615T2
公开(公告)日：2006-07-06
申请号：DE69927615
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , NAKAYAMA SHINPEI
Abstract: The present invention provides a crystalline aromatic polyester resin prepuff which is superior in foaming fusion during cavity-molding, and a molded foam article and a-laminated molded foam article, using the prepuff, wherein its fusion ratio and mechanical strength are particulary improved. The prepuff is formed from a crystalline aromatic polyester resin, wherein a bulk density is from 0.01 to 1.0 g/cm and a crystallization' peak temperature is from 130 to 180 DEG C. The molded foam article is prepared by molding further expanding and fusing the prepuffs in a mold cavity, while the laminated molded foam article is formed by laminating the molded foam article directory to the film or sheet of the aromatic polyester resin.
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公开(公告)号：DE69926268D1
公开(公告)日：2005-08-25
申请号：DE69926268
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , ARAMOMI YUKIO , YAMAGATA HIROYUKI
Abstract: The present invention provides a process for producing a molded foam article of a crystalline aromatic polyester resin. The process is characterized by heating the surface temperature of a mold for cavity-molding to the temperature within a range of from ( Tg + 35 ) to ( Tg + 57 ) DEG C (Tg is a glass transition temperature of the crystalline aromatic polyester resin prepuffs), thereby tomoldprepuffs, and cooling the surface of the mold to a temperature not lowered than Tg for at least 20 seconds.
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公开(公告)号：AT299789T
公开(公告)日：2005-08-15
申请号：AT99959786
申请日：1999-12-10
Applicant: SEKISUI PLASTICS
Inventor： HIRAI TAKAAKI , FUJISHIMA MINORU , UENO HIROYUKI , MATSUMURA HIDEYASU , MORIOKA IKUO , ARAMOMI YUKIO , YAMAGATA HIROYUKI
Abstract: The present invention provides a process for producing a molded foam article of a crystalline aromatic polyester resin. The process is characterized by heating the surface temperature of a mold for cavity-molding to the temperature within a range of from ( Tg + 35 ) to ( Tg + 57 ) DEG C (Tg is a glass transition temperature of the crystalline aromatic polyester resin prepuffs), thereby tomoldprepuffs, and cooling the surface of the mold to a temperature not lowered than Tg for at least 20 seconds.
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