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Machine translation
1. (WO1980001889) LOW DENSITY,EXTRUDED ETHYLENIC POLYMER FOAMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001889    International Application No.:    PCT/US1980/000276
Publication Date: 18.09.1980 International Filing Date: 17.03.1980
IPC:
C08J 9/00 (2006.01), C08J 9/14 (2006.01)
Applicants:
Inventors:
Priority Data:
20681 15.03.1979 US
Title (EN) LOW DENSITY,EXTRUDED ETHYLENIC POLYMER FOAMS
(FR) MOULAGES DE PRODUITS DE CONSTRUCTION
Abstract: front page image
(EN)Low density ethylenic polymer foam planks having density of from about 0.8 to about 1.9 pounds per cubic foot, dimensional stability, substantially closed-cell structure, a cross-sectional area of at least six square inches and a minimum cross-sectional dimension of at least 0.5 inch. Such foam planks are made from ethylenic polymers by release to lower pressure of flowable, foamable gel under pressure, e.g., by extrusion foaming, wherein the gel comprises at least one ethylenic polymer and at least one volatile blowing agent. The process of making such foam planks is particularly characterized by the improvement wherein the flowable gel is mixed sufficiently to disperse the blowing agent in the gel to an amount from about 13.5 to 35 x 10-4 moles per gram of the ethylenic polymer.
(FR)Planches en polymere ethylenique a basse densite ayant des densites d"environ 0,8 a environ 1,9 psi, une stabilite dimensionnelle, a structure cellulaire sensiblement fermee, une aire de section transversale d"au moins six pouces carres et une dimension de section transversale d"au moins 0,5 pouce. De telles planches de mousse sont preparees a partir de polymeres ethyleniques par la decharge a une pression plus basse d"un gel sous pression, moussant, par exemple par moussage par extrusion, dans lequel le gel comprend au moins un polymere ethylenique et au moins un agent de moussage de volatile. Le procede de fabrication de telles planches est caracterise par l"amelioration selon laquelle le gel d"ecoulement est melange suffisamment pour disperser l"argent de moussage dans le gel en une proportion d"environ 13,5 a 35.10-4 moles par gramme du polymere ethylenique.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)