摘要:
The invention relates to a flexible thermoplastic composition resistant to the ageing effects of oil, said composition comprising a grafted copolymer containing polyamide blocks and consisting of a polyolefin backbone and at least one polyamide graft. According to the invention, the grafts are attached to the core by the residues of an unsaturated monomer (X) having a function that can react with a polyamide comprising an amine end or a carboxylic acid end; the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from the double bond thereof; and the composition comprises between 40 to 90 wt % of the polyolefin core comprising the unsaturated monomer (X); between 5 to 40 wt % of polyamide grafts; and between 5 to 40% of at least one polymer selected from a saponified ethylene/vinyl acetate copolymer and a polyamide.
摘要:
A method for the management of the recording of an audio/video stream within a communications network comprises a step for setting up a first recording connection between a source device and a recording device connected to said communications network. The step for setting up the first recording connection is followed by a step for setting up a second viewing connection between the recording device and a display device also connected to the network, so that a user can observe an audio/video image corresponding to the audio/video stream, on said display device, while the stream is being recorded by the recording device.
摘要:
A multimedia interface device for the transfer of information in a communications network comprises: at least two connection means to which, respectively, at least two sending devices can get connected by means respectively of two communications links compliant respectively with two protocols; means of connection to a single remote switching device by means of a single cable, the switching device comprising at least switching means between at least two ports; means to mix the information sent out by sending devices into only one stream of information in the form of segments being able to contain part of the information; and means to transfer the stream of information in the form of segments on at least one pair of cable to the switching device to which it is connected according to a third protocol.
摘要:
A double-layer thermoplastic film of a photovoltaic module, including two layers, one forms the encapsulator and the other forms the backsheet, wherein: a) the encapsulator is a layer including at least one polyolefin containing a polyethylene selected from a homopolymer of ethylene or a copolymer comprising at least 50 mol % of ethylene and at least one comonomer and between 0% and 100% of a polyamide grafted polymer comprising a polyolefin trunk that represents between 50 mass % and 95 mass % of the polyamide grafted polymer containing a radical of at least one unsaturated monomer (X) and at least one polyamide graft that represents between 5 mass % and 50 mass % of said polyamide grafted polymer; and b) the backsheet comprises a layer formed from a polyamide grafted polymer that is identical to that of the encapsulator except that it has a flow temperature higher than 160° C.
摘要:
The present invention relates to a photovoltaic module comprising as an encapsulant a composition comprising at least one polyacrylate- or polymethacrylate-type block copolymer with the general formula B-(A)n, n being a natural integer no lower than one, preferably 1 to 8, the block A being selected from among methacrylates having a Tg higher than 0° C., the block B being a polyacrylate or a polymethacrylate having a Tg lower than 0° C., the block B being at least 50 wt % of the total weight of the block copolymer.
摘要:
The invention relates to the use in a photovoltaic module of a film of a composition as a backsheet or as an encapsulant, this composition comprising, with respect to the total weight of the composition: from 1 to 99% of a polyethylene having an ethylene whose level by weight is greater than or equal to 80% chosen from the homopolymers of ethylene and the copolymers of ethylene and another alpha-olefin; from 99 to 1% of a polyolefin B, other than A, carrying a reactive functional group X chosen from the anhydride carboxylic acids and epoxides. The invention also relates to, the composition additionally comprises a polyolefin C, other than B, which carries a functional group Y capable of reacting with the functional group X. The invention further relates to a photovoltaic module comprising the film which is used of the composition and also a process for the manufacture of this module.
摘要:
A system for the transmission of audiovisual signals between at least one source node and at least one destination node comprises: at least one central switch to which at least one source node is connected and at least two home audiovisual networks, each comprising a plurality of nodes each capable of playing the role of a destination node to which said audiovisual signals are transmitted from said at least one source node. Each home audiovisual network is connected to said at least one central switch by means of said at least one of its nodes. Said at least one central switch comprises interconnection management means. These means themselves comprise means for the selective authorisation of a first type of transmission of audiovisual signals through said at least one central switch from said at least one source node to at least one of the destination nodes of one of the home audiovisual networks.
摘要:
A multimedia interface device for the transfer of information in a communications network comprises, at least two connection means to which, respectively, at least two sending devices can get connected by means respectively of two communications links compliant respectively with two protocols; means of connection to a single remote switching device by means of a single cable, the switching device comprising at least switching means between at least two ports; means to mix the information sent out by sending devices into only one stream of information in the form of segments being able to contain part of the information; and means to transfer the stream of information in the form of segments on at least one pair of cable to the switching device to which it is connected according to a third protocol.
摘要:
The invention relates to the use in a photovoltaic module of a film of a composition as a backsheet or as an encapsulant, this composition comprising, with respect to the total weight of the composition: from 1 to 99% of a polyethylene having an ethylene whose level by weight is greater than or equal to 80% chosen from the homopolymers of ethylene and the copolymers of ethylene and another alpha-olefin; from 99 to 1% of a polyolefin B, other than A, carrying a reactive functional group X chosen from the anhydride carboxylic acids and epoxides. The invention further relates to a photovoltaic module comprising the film of the composition according to the invention and also a process for the manufacture of this module.
摘要:
A method for the management of devices in a communications network comprises at least one source device and at least one destination device, the destination device or devices being interconnected to the source device or devices by means of at least one other device of the network called an access device or devices. This method comprises the following steps implemented by an access device compatible with a predetermined audiovisual content description format: reception of a request, coming from a destination device, called a requesting destination device, for obtaining a list of audiovisual contents available on the access device; creation of a list, called a requested list, comprising a piece of information representing at least one source device, the representative information being described according to the audiovisual content description format; in response to the request, sending the requesting destination device the list created during the creation step.