The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Dec. 16, 2002
Jean-françois Sassi, St. Romain En Jarez, FR;
Franck Touraud, Vernon, FR;
Natalia Scherbakoff, Vourles, FR;
Christine Vidil, Communay, FR;
Christophe Paulo, Lyons, FR;
Sandrine Rochat, Villeurbanne, FR;
Jean-pierre Marchand, Princeton, NJ (US);
Bertrand Bordes, Vienne, FR;
Jean-François Sassi, St. Romain En Jarez, FR;
Franck Touraud, Vernon, FR;
Natalia Scherbakoff, Vourles, FR;
Christine Vidil, Communay, FR;
Christophe Paulo, Lyons, FR;
Sandrine Rochat, Villeurbanne, FR;
Jean-Pierre Marchand, Princeton, NJ (US);
Bertrand Bordes, Vienne, FR;
Rhodianyl, Boulogne Billancourt Cedex, FR;
Abstract
The invention relates to thermoplastic compositions comprising a thermoplastic polyamide matrix and at least one additive which modifies the interaction between the matrix and an agent. The purpose of the invention is to provide an additive which modifies the interaction between a copolyamide-type thermoplastic copolyamide matrix and at least one agent. The aforementioned additive, which comprises at least one hyperbranched functionalised polymer, is not compatible with the matrix. Moreover, said additive can be used for the controlled modification of the interaction between the thermoplastic copolyamide and an internal or external chemical agent. Preferably, the composition does not contain hyperbranched polymers which produce therein a reduction in the molar mass of matrix M which is greater than or equal to 7% in relation to a sample composition which comprises matrix M but does not contain hyperbranched polymer additive(s). Said mass measurement is taken preferably using a determined protocol P. The invention is suitable for use in moulding, injection moulding, injection/blow moulding, extrusion/blow moulding, extrusion or spinning.