公开(公告)号：US5314925A

公开(公告)日：1994-05-24

申请号：US984782

申请日：1992-12-03

Applicant: Ann M. Burnell ,  Albin P. Berzinis ,  Timothy M. Conroy ,  Kim G. Balfour

Inventor： Ann M. Burnell ,  Albin P. Berzinis ,  Timothy M. Conroy ,  Kim G. Balfour

IPC: C08J9/04 ,  C08J9/00 ,  C08K3/22 ,  C08L69/00 ,  C08J9/06

CPC classification number: C08J9/0061 ,  C08J2351/04 ,  C08J2369/00 ,  C08J2427/00 ,  Y10S521/908

Abstract: A process for producing structural aromatic polycarbonate thermoplastic foam is provided which involves gas expansion of a melted aromatic polycarbonate thermoplastic resin composition containing an amount of a polytetrafluoroethylene nucleating agent. The thermoplastic resin compositions provided exhibit an improved uniformity of cell structure in the resultant structural thermoplastic foam as a result of the incorporation of the polytetrafluoroethylene nucleating agent. The process and compositions are useful in the production of structural thermoplastic foam articles.

Abstract translation: 提供一种生产结构芳族聚碳酸酯热塑性泡沫塑料的方法，其包括含有一定量的聚四氟乙烯成核剂的熔融芳族聚碳酸酯热塑性树脂组合物的气体膨胀。 提供的热塑性树脂组合物由于引入聚四氟乙烯成核剂而在所得到的结构热塑性泡沫塑料中表现出改进的孔结构均匀性。 该方法和组合物可用于生产结构热塑性泡沫制品。

公开(公告)号：US5023279A

公开(公告)日：1991-06-11

申请号：US429129

申请日：1989-10-30

Applicant: Marlin D. Buckmaster ,  Stuart K. Randa

Inventor： Marlin D. Buckmaster ,  Stuart K. Randa

IPC: C08J9/00

CPC classification number: C08J9/0033 ,  C08J9/0038 ,  Y10S264/13 ,  Y10S521/908

Abstract: This invention relates to the use of a special class of sulfonic and phosphonic acids, and salts of the acids, to give improved nucleation for foam extrusion of thermoplastics using either dissolved gas or chemical blowing agents to produce foam.

公开(公告)号：US4931482A

公开(公告)日：1990-06-05

申请号：US355530

申请日：1989-05-22

Applicant: Wilhelm Lamberts ,  Klaus-Dieter Sommerfeld ,  Dietmar Bielefeldt ,  Albrecht Marhold ,  Michael Negele

Inventor： Wilhelm Lamberts ,  Klaus-Dieter Sommerfeld ,  Dietmar Bielefeldt ,  Albrecht Marhold ,  Michael Negele

IPC: C07C17/00 ,  C08G18/00 ,  C08J9/14

CPC classification number: C08J9/14 ,  C07C17/00 ,  C08J9/146 ,  C08J2375/04 ,  Y10S521/908

Abstract: This invention relates to an improved method of preparing closed cell foams using 1,1,1,4,4,4-hexafluorobutane as a blowing agent and insulating gas in the production of such foams, including isocyanate-based foams such as polyurethane foams and polyisocyanurate foams.

Abstract translation: 本发明涉及一种使用1,1,1,4,4,4-六氟丁烷作为发泡剂制备闭孔泡沫的改进方法，并且在生产这种泡沫体时产生绝缘气体，包括异氰酸酯基泡沫如聚氨酯泡沫和 聚异氰脲酸酯泡沫。

公开(公告)号：US4877815A

公开(公告)日：1989-10-31

申请号：US312989

申请日：1989-02-17

Applicant: Marlin D. Buckmaster ,  Stuart K. Randa

Inventor： Marlin D. Buckmaster ,  Stuart K. Randa

IPC: C08J9/00

CPC classification number: C08J9/0033 ,  C08J9/0038 ,  Y10S264/13 ,  Y10S521/908

Abstract: This invention relates to the use of a special class of sulfonic and phosphonic acids, and salts of the acids, to give improved nucleation for foam extrusion of thermoplastics using either dissolved gas or chemical blowing agents to produce foam.

Abstract translation: 本发明涉及使用特殊类型的磺酸和膦酸和酸的盐，以使用溶解的气体或化学发泡剂产生泡沫来提供热塑性塑料的泡沫挤出的改进成核。

公开(公告)号：US4496668A

公开(公告)日：1985-01-29

申请号：US610156

申请日：1984-05-14

Applicant: Norman R. Newburg, deceased

Inventor： Norman R. Newburg, deceased

IPC: C08G61/08 ,  C08J9/00 ,  C08J9/14

CPC classification number: C08J9/0061 ,  C08G61/08 ,  C08J9/0066 ,  C08J9/14 ,  C08J2345/00 ,  C08J2421/00 ,  Y10S521/908

Abstract: A cellular thermoset polymer comprised of polymerized units of dicyclopentadiene monomer, wherein the cells of said cellular polymer are small and uniform.

Abstract translation: 由二环戊二烯单体的聚合单元组成的细胞热固性聚合物，其中所述多孔聚合物的细胞小而均匀。

公开(公告)号：US4394460A

公开(公告)日：1983-07-19

申请号：US327326

申请日：1981-12-04

Applicant: Daniel C. Chung ,  William A. Miller ,  Eugene R. Baumgaertner

Inventor： Daniel C. Chung ,  William A. Miller ,  Eugene R. Baumgaertner

IPC: C08J9/00 ,  C08J9/10 ,  C08J9/08

CPC classification number: C08J9/10 ,  C08J9/0066 ,  C08J2323/08 ,  C08J2327/12 ,  Y10S521/908 ,  Y10S521/909 ,  Y10S521/91

Abstract: A foam composition comprising an ethylene-chlorotrifluoroethylene copolymer, a blowing agent and a nucleating agent. The nucleating agent is the carbonate or oxide of a metal cation from the group of metals consisting of magnesium, calcium, barium, zinc and lead. The invention also is a method of making the above foam copolymer composition.

公开(公告)号：US4110269A

公开(公告)日：1978-08-29

申请号：US764181

申请日：1977-01-31

Applicant: Herbert A. Ehrenfruend

Inventor： Herbert A. Ehrenfruend

IPC: C08J9/00 ,  C08J9/14 ,  C08L21/00

CPC classification number: C08J9/0061 ,  B29C44/50 ,  C08J9/0066 ,  C08J9/147 ,  C08J2323/06 ,  C08J2457/00 ,  Y10S264/05 ,  Y10S521/908

Abstract: A method of producing a low density polyethylene foam by extruding a melt blend containing polyethylene, an ionomer, a nucleating system and two expanding agents having substantially different vapor pressures and solubility in the melt blend.

Abstract translation: 通过挤出含有聚乙烯，离聚物，成核体系和两种在熔融共混物中具有不同蒸气压和溶解度的发泡剂的熔融共混物来生产低密度聚乙烯泡沫的方法。

公开(公告)号：US3959192A

公开(公告)日：1976-05-25

申请号：US556371

申请日：1975-03-07

Applicant: Pierre Delfosse ,  Alfred Bosshard

Inventor： Pierre Delfosse ,  Alfred Bosshard

IPC: C08K3/26 ,  C08J9/00

CPC classification number: C08K3/26 ,  Y10S521/908

Abstract: Filled polymer containing natural calcium carbonate having a statistical particle diameter of from 0.5 to 0.7 micron and average maximum diameter of from 3 to 4 microns.

Abstract translation: 含有统计粒径为0.5〜0.7微米，平均最大直径为3〜4微米的天然碳酸钙的填充聚合物。

公开(公告)号：US3914191A

公开(公告)日：1975-10-21

申请号：US49342074

申请日：1974-07-31

Applicant: UNION CARBIDE CORP

Inventor： SCOTT ROBERT J

IPC: C08J9/14

CPC classification number: C08J9/149 ,  C08J2203/12 ,  C08J2203/142 ,  C08J2325/06 ,  Y10S264/05 ,  Y10S521/908 ,  Y10S521/91

Abstract: This invention relates to the use of a methyl formatetrichloromonofluoromethane azeotrope as a blowing agent in producing polystyrene foam.

Abstract translation: 本发明涉及甲酸甲酯 - 三氯一氟甲烷共沸物作为发泡剂生产聚苯乙烯泡沫塑料的用途。

公开(公告)号：US3900433A

公开(公告)日：1975-08-19

申请号：US42537273

申请日：1973-12-17

Applicant: ALLIED CHEM

Inventor： TAUB BERNARD ,  HARNISH DANIEL F

IPC: C08J9/18 ,  C08J9/16

CPC classification number: C08J9/18 ,  C08J2325/06 ,  Y10S521/908

Abstract: A styrene polymer bead impregnated with a blowing agent containing from about 0.5 to about 20 weight percent of an impregnation aid and the process for preparing same.