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公开(公告)号：US5342857A
公开(公告)日：1994-08-30
申请号：US184073
申请日：1994-01-18
Applicant: Michael E. Reedy , Edward W. Rider, Jr.
Inventor： Michael E. Reedy , Edward W. Rider, Jr.
CPC classification number: C08J9/0023 , C08J9/08 , C08J2201/024 , C08J2203/02 , C08J2325/06
Abstract: The present invention relates to a process to produce polystyrene foam comprising mixing a predetermined amount of masterbatch mix and a styrenic polymer, heating this mixture, injecting CO.sub.2 and/or nitrogen, in gas or liquid form, as a blowing agent and subsequently extruding, cooling and drying the resulting polystyrene foam.
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公开(公告)号：US5218006A
公开(公告)日：1993-06-08
申请号：US891866
申请日：1992-06-01
Applicant: Michael E. Reedy , Edward W. Rider, Jr.
Inventor： Michael E. Reedy , Edward W. Rider, Jr.
CPC classification number: C08J9/0023 , C08J9/08 , C08J2201/024 , C08J2203/02 , C08J2325/06
Abstract: The present invention relates to a process to produce polystyrene foam comprising mixing a predetermined amount of masterbatch mix and a styrenic polymer, heating this mixture, injecting CO.sub.2 and/or nitrogen, in gas or liquid form, as a blowing agent and subsequently extruding, cooling and drying the resulting polystyrene foam.
Abstract translation: 本发明涉及生产聚苯乙烯泡沫的方法，包括将预定量的母料混合物和苯乙烯类聚合物混合，加热该混合物，以气体或液体形式注入二氧化碳和/或氮气作为发泡剂，随后挤出，冷却 并干燥得到的聚苯乙烯泡沫。
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公开(公告)号：US4278769A
公开(公告)日：1981-07-14
申请号：US13761
申请日：1979-02-21
Applicant: Peter Gebauer , Karl G. Sturm
Inventor： Peter Gebauer , Karl G. Sturm
CPC classification number: C08J9/06 , C08J3/226 , C08J9/0061 , C08J2201/024 , C08J2367/02 , C08J2467/00
Abstract: A blowing agent concentrate comprising a chemical blowing agent and a thermoplastic composition vehicle therefore, said thermoplastic composition being a saturated polyester and/or copolyester having a crystalline melting point between 100.degree. C. and 220.degree. C. and a reduced viscosity of 0.4 dl/g to 1.6 dl/g; the use of such blowing agent concentrate in the formation of foamed articles of high molecular weight polyalkyleneterephthalate which articles can be filled and/or reinforced and/or flame proofed and can contain other additives. Particularly contemplated is the use of such blowing agent concentrate in the formation of glass fiber reinforced structural foam moldings of polyalkyleneterephthalates especially polytetramethylene terephthalates.
Abstract translation: 因此，包含化学发泡剂和热塑性组合物载体的发泡剂浓缩物，所述热塑性组合物是具有100℃至220℃的结晶熔点和0.4dl / s的比浓粘度的饱和聚酯和/或共聚酯， g至1.6dl / g; 这种发泡剂的使用集中在形成高分子量聚对苯二甲酸亚烷基酯的发泡制品中，该制品可以被填充和/或增强和/或阻燃并且可以含有其它添加剂。 特别考虑的是使用这种发泡剂浓缩物来形成聚亚烷基对苯二甲酸酯，特别是聚对苯二甲酸丁二醇酯的玻璃纤维增强结构泡沫塑料模制品。
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公开(公告)号：US2444869A
公开(公告)日：1948-07-06
申请号：US59073545
申请日：1945-04-27
Applicant: US RUBBER CO
Inventor： CLAYTON WILLIAM J , BUTSCH PAUL V
CPC classification number: C08J9/28 , C08J2201/024 , C08J2309/10 , C08L21/00
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