Elf Atochem S.a.

Arkema France

Atofina

Atofina S.a.

Altofina

Marius Hert

Patrice Perret

Thibaut Montanari

Christian Dousson

Patrick Alex

Jacques Thomasset

Chrystelle Guibouin

Martine Cerf

Dominique Jousset

Serge Nawrot

Alain Bouilloux

Patrice Robert

Martin Baumert

Didier Roumilhac

Thomas Fine

Francois Court

Jean Jacques Flat

François Court

The mixture of the invention contains, for 100 parts by weight: (A) 10 to 90 parts in weight of at least one copolymer grafted to polyamide blocks, said copolymer comprising a polyolefin trunk and at least 1.3 polyamide grafts on said trunk in average, and having a nanostructured organization, wherein said grafts are attached to the trunk by the rest of an unsaturated monomer (X) having a function capable of reacting with a polyamide with an amine end; the rest of said monomer (X) being attached on the trunk by grafting or copolymerization from its double bond thereof, (A) optionally including at least one non-grafted polyolefin in a proportion such that the nano-structured organization of the compound (A) is preserved; and (B) 90 to 10 parts in weight of a formulation of at least one elastomer having unsaturated double bonds and capable of reacting with a crosslinking or vulcanization agent, said formulation containing a crosslinking or vulcanization system of said elastomer(s), at least one plasticizer and the standard additives present in elastomer formulations.

Mixture of copolymers grafted with polyamide blocks and elastomers formulated with a cross-linking or vulcanisation system

The mixture of the invention contains, for 100 parts in weight of (A)+(B): (A) 10 to 90 parts in weight of at least one non-nanostructured olefinic thermoplastic polymer; (B) 90 to 10 parts in weight of a formulation of at least one elastomer having unsaturated double bonds and capable of reacting with a cross-linking or vulcanization agent, said formulation containing a crosslinking or vulcanization system of said elastomer(s), at least one plasticizer, and the standard additives present in elastomer formulations; (C) up to 100 parts in weight, relative to (A)+(B), of at least one copolymer grafted with polyamide blocks, said copolymer comprising a polyolefin trunk and at least 1.3 polyamide grafts on said trunk in average, and having a nanostructured organization, wherein said grafts are attached to the trunk by the rest of an unsaturated monomer (X) having a function capable of reacting with a polyamide with an amine end; and rest of said unsaturated monomer (X) being attached on the trunk by grafting or copolymerization from its double bond thereof, and wherein (A) and (B) in the mixture can already have been combined together by the crosslinking or vulcanization dynamic method in order to provide a crosslinked or vulcanized thermoplastic composition.

Elastomer thermoplastic mixtures and compositions having improved properties, method of making said compositions and applications thereof

The invention relates to a composition based on an impact-resistant thermoplastic polyamide resin, comprising, as a blend&#x2014;from 60 to 98 wt % of polyamide resin (A) and&#x2014;from 2 to 40 wt % of a blend of at least one graft copolymer with polyamide blocks (B) composed of a polyolefin backbone and at least one polyamide graft in which the grafts are attached to the backbone by the residues of an unsaturated monomer (X) having a functional group capable of reacting with an amine-terminated polyamide, the residues of the unsaturated monomer (X) being attached to the backbone by grafting or copolymerization via its double bond, and of a non-reactive ethylenic polymer (C) that is miscible with (B) and has a density of below 0.960 g/cm.

Impact-resistant composition based on a polyamide resin and on a blend of at least one graft copolymer with polyamide blocks and a low-density ethylene polymer

The present invention relates to a structure comprising a substrate and at least one first layer applied to the substrate and made of a thermoplastic composition comprising at least one functionalized polyolefin obtained either by copolymerization or by grafting of a polyolefin backbone with an unsaturated monomer comprising an anhydride, acid or epoxide function, said functionalized polyolefin being grafted with polyether units comprising a terminal amine, by means of reactive extrusion, as a breathable waterproof material having a water vapor permeability of at least 300 g/m24 hmeasured according to the standard ASTM E96, method BW (38&#xb0; C./50% relative humidity), for a film of 25 &#x3bc;m. It also relates to the use of such a composition as a breathable waterproof material having a water vapor permeability of at least 300 g/m24 h(measured according to the standard ASTM E96, method BW 38&#xb0; C./50% relative humidity), for a film of 25 &#x3bc;m.

Structure made from a thermoplastic composition of a polyolefin functionalised by polyether grafts and use thereof

The invention concerns a mixture comprising by weight, the total being 100%, 1 to 100% if a polyamide block copolymer consisting of a basic polyolefin chain and on an average at least a polyamide graft wherein: the grafts are fixed to the basic chain by the radicals of an unsaturated monomer (X) having a function capable of reacting with a polyamide with amine terminal, the radicals of the unsaturated monomer (X) are fixed to the basic chain by grafting or copolymerization from its double bond; 99 to 0% of a flexible polyolefin with elastic modulus in flexure less than 50 MPa at 23&#xb0; C. and having a crystalline melting point ranging between 60&#xb0; C. and 100&#xb0; C. Said mixtures are useful for making films, tanks, geomembrane protective fabrics produced by extrusion, products obtained by calendering, thermocladding/forming, protective films for electric cables and skins using slush molding technique.

Mixture of grafted polyamide-block and flexible polyolefin copolymers

The invention concerns a composition comprising an ethylene/alpha-olefin metallocene copolymer of density less than 0.900 g/cm and an ethylene/alkyl (meth)acrylate radical copolymer. The invention also concerns films obtained from said composition, in particular a stretchable adhesive film, and a high temperature extrusion method.

Films comprising metallocene catalyzed plastomer and ethylene/alkyl (meth)acrylate copolymer

The invention concerns a composition comprising an ethylene/alpha-olefin metallocene copolymer and an ethylene/alkyl (meth)acrylate radical copolymer, the ratio of their secant moduli being greater than 1. The invention also concerns films obtained from said composition, in particular a stretchable adhesive film, and a high temperature extrusion method.

Composition comprising metallocene plastomer and ethylene/alkyl (meth) acrylate polymer with their secant moduli ratio greater than 1

The present invention relates to a multiphase thermoplastic composition consisting of a mixture (I) including at least one ethylene polymer (A) which has units derived from unsaturated epoxy and at least one thermoplastic resin (B) partly encapsulated by the said ethylene polymer (A), the said mixture (I) being dispersed in a matrix of thermoplastic resin (C).

Multiphase thermoplastic compositions

The invention relates to a thermoplastic composition comprising at least one polymer (M) forming a matrix in which are dispersed at least one polymer (S) and at least one polymer (K) and such that its tensile strength is greater than that of a composition comprising only (M) and (S), the proportion by weight of (M) being the same.

Flexible thermoplastic resins having improved tensile strength

The invention relates to a thermoplastic composition comprising at least one polymer (M) forming a matrix in which are dispersed nodules of (K), nodules of (K) entirely or partly encapsulated in at least one polymer (S) and nodules of (S) and such that the nodules of (K) entirely or partly encapsulated in (S) are smaller than the nodules of (S).

Thermoplastics with improved flexibility and transparency

Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmolding the vulcanized rubber/thermoplastic blend onto the thermoplastic.

Blends of thermoplastic and rubber which are adherent to thermoplastics

Multiphase thermoplastic resin compositions

Flexible thermoplastic resins with improved tensile strength

Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmoulding the vulcanized rubber/thermoplastic blend onto the thermoplastic.

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Serquigny, France

Marius Hert