摘要:
The invention relates to a multi-layer structure including placed one against the other, at least one layer of fluoride polymer onto which at least one unsaturated monomer has been grafted by irradiation, and at least one layer of PVC. According to a 1st form, the multi-layer structure may include in order placed against one another: possibly a layer of fluoride polymer; a layer of fluoride polymer grafted by irradiation; and layer of PVC. According to a 2nd form, the multi-layer structure includes in order placed against one another: possibly, a layer of fluoride polymer; a layer of fluoride polymer grafted by irradiation; a layer of PVC; a layer of fluoride polymer grafted by irradiation; and possibly a layer of a fluoride polymer. According to a 3rd form, the multi-layer structure includes in order placed against one another: a layer of PVC; a layer of fluoride polymer grafted by irradiation; a layer of PVC. Said structure may be shaped into films, bottles, tanks, containers, pipes and containers of all kinds.
摘要:
The invention relates to a multi-layer structure containing from the inside towards the outside: a layer C1 comprising at least one functionalized fluorinated polymer optionally mixed with at least one compatible fluorinated polymer; a layer C2 containing at least one adhesive binder; a layer C3 containing at least one polyolefin, preferably a polyethylene; a layer C4 containing at least one adhesive binder; a barrier layer C5 containing at least one barrier polymer, optionally reinforced against impacts; the layers are arranged against each other in the above mentioned order. The invention also relates to the use of this mull-layered structure for storing or transferring fuel.
摘要:
The invention relates to a copolymer of VDF and at least one monomer that is copolymerizable with VDF, having a VDF weight content of at least 50%, preferably at least 75%, onto which at least one unsaturated polar monomer is radiation grafted, characterized in that the VDF copolymer has, before grafting, the following characteristics: a crystallization temperature Tc (measured by DSC according to the standard ISO 11357-3) ranging from 50 to 120° C., preferably from 85 to 110° C.; a yield strength σY ranging from 10 to 40 MPa, preferably from 10 to 30 MPa; and a melt viscosity η (measured with a capillary rheometre at 230° C. and 100 s−1) ranging from 100 to 1500 Pa·s, preferably from 400 to 1200 Pa·s. The invention also relates to a blend comprising this modified copolymer and a PVDF.This modified copolymer or the blend may be combined with a thermoplastic polymer, an elastomer or an inorganic material.
摘要:
The invention relates to a multi-layer structure containing from the inside towards the outside: a layer C1 comprising at least one functionalized fluorinated polymer optionally mixed with at least one compatible fluorinated polymer; a layer C2 containing at least one adhesive binder; a layer C3 containing at least one polyolefin, preferably a polyethylene; a layer C4 containing at least one adhesive binder; a barrier layer C5 containing at least one barrier polymer, optionally reinforced against impacts; the layers are arranged against each other in the above mentioned order. The invention also relates to the use of this mull-layered structure for storing or transferring fuel.
摘要:
The invention relates to a multilayer film of A/B/C structure comprising: a first layer of composition A, comprising a fluoropolymer; a second layer of composition B, comprising a filled fluoropolymer; and a third layer of composition C, comprising a fluoropolymer, characterized in that the first and third layers have a melting point above 150° C., measured by DSC, and in that the transmittance in visible light is less than 30% for a multilayer film thickness of 25 μm. The invention also relates to the use of a fluoropolymer-based film preferably for a photovoltaic cell back panel, a high-performance textile or a metal, the film adhering to the substrate by means of an adhesive layer placed between the substrate and the film.
摘要翻译:本发明涉及一种A / B / C结构的多层膜,其包括:第一层组合物A,其包含含氟聚合物; 组合物B的第二层,包含填充的含氟聚合物; 以及包含含氟聚合物的组合物C的第三层,其特征在于,通过DSC测量,第一层和第三层的熔点高于150℃,并且对于多层膜,可见光的透射率小于30% 膜厚25微米。 本发明还涉及优选用于光伏电池背板,高性能织物或金属的氟聚合物基膜的使用,所述膜通过设置在基板和膜之间的粘合剂层粘附到基板。
摘要:
The invention relates to a multilayer tube comprising (in the order from the inside to the outside of the tube), layers arranged one on top of the other: an optional layer L1 comprising at least one fluorinated polymer, preferably a PVDF; a layer L2 comprising at least one functionalized PVDF, obtained by radiation-grafting of at least one unsaturated polar monomer onto a PVDF; an optionally layer L3 of an adhesion binder; a layer L4 comprising at least one polyolefin optionally mixed with at least one functionalized polyolefin; an optional barrier layer L5; an optional layer L6 comprising at least one polyolefin, optionally in a mixture with at least one functionalized polyolefin; characterized in that the PVDF onto which the unsaturated polar monomer is grafted is a VDF copolymer those weight content is at least 50%, preferably at least 75%, and at least one monomer copolymerizable with the VDF, having the following characteristics: a crystallization temperature Tc (measured by DSC as per the ISO Standard 11357-3) ranging from 50 to 120° C., preferably 85 to 110° C.; a yield strength σY ranging from 10 to 40 MPa, preferably 10 to 30 MPa; and a melt viscosity η (measured with a capillary rheometer at 230° C. at 100 s−1) ranging from 100 to 1500 Pa·s, preferably 400 to 1200 Pa·s.”
摘要:
The invention relates to a multilayer film of A/B/C structure comprising: a first layer of composition A, comprising a fluoropolymer; a second layer of composition B, comprising a filled fluoropolymer; and a third layer of composition C, comprising a fluoropolymer, characterized in that the first and third layers have a melting point above 150° C., measured by DSC, and in that the transmittance in visible light is less than 30% for a multilayer film thickness of 25 μm. The invention also relates to the use of a fluoropolymer-based film preferably for a photovoltaic cell back panel, a high-performance textile or a metal, the film adhering to the substrate by means of an adhesive layer placed between the substrate and the film.
摘要翻译:本发明涉及一种A / B / C结构的多层膜,其包括:第一层组合物A,其包含含氟聚合物; 组合物B的第二层,包含填充的含氟聚合物; 以及包含含氟聚合物的组合物C的第三层,其特征在于,通过DSC测量,第一层和第三层的熔点高于150℃,并且对于多层膜,可见光的透射率小于30% 膜厚25微米。 本发明还涉及优选用于光伏电池背板,高性能织物或金属的氟聚合物基膜的使用,所述膜通过设置在基板和膜之间的粘合剂层粘附到基板。
摘要:
An ophthalmic lens includes: a transparent ophthalmic lens substrate made of organic glass; an adhesive layer covering at least one of the faces of the transparent substrate; a transparent film made of a thermoplastic polymer fixed to the transparent substrate via the adhesive layer; and an abrasion-resistant coating covering the transparent thermoplastic polymer film, characterized in that the ophthalmic lens has a minimum thickness at the center of less than 2 mm, preferably less than 1.5 mm and even more preferably less than 1.2 mm. Two processes for manufacturing such a lens and the use of an adhesive multilayer film to improve the impact strength of such a lens are also described.
摘要:
A method for cutting-out a multi-layer ophthalmic lens (100) following a desired contour (C3), includes: a step of pre-blanking the ophthalmic lens (100) using a preliminary tool (210; 223), according to a preliminary contour (C1, C1′); a step of blanking the ophthalmic lens (100) using a blanking wheel (210), following a blanking contour (C2, C3); and a step of finishing the ophthalmic lens (100) using a finishing tool (212). According to the invention, the preliminary contour (C1, C1′) is larger than the desired contour (C3), and the blanking wheel (210) used has a granulometry of between 0.1 and 0.5 mm and is controlled in relation to the ophthalmic lens (100) so as to apply a radial force of between 0.1 and 5 N to the ophthalmic lens (100) during the blanking step.
摘要:
A method for cutting-out a multi-layer ophthalmic lens (100) following a desired contour (C3), includes: a step of pre-blanking the ophthalmic lens (100) using a preliminary tool (210; 223), according to a preliminary contour (C1, C1′); a step of blanking the ophthalmic lens (100) using a blanking wheel (210), following a blanking contour (C2, C3); and a step of finishing the ophthalmic lens (100) using a finishing tool (212). According to the invention, the preliminary contour (C1, C1′) is larger than the desired contour (C3), and the blanking wheel (210) used has a granulometry of between 0.1 and 0.5 mm and is controlled in relation to the ophthalmic lens (100) so as to apply a radial force of between 0.1 and 5 N to the ophthalmic lens (100) during the blanking step.