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    • 2. 发明申请
    • EXTRUSION AGENT BASED ON A HETEROGENEOUS PVDF
    • 基于异质PVDF的挤出剂
    • WO2007080338A3
    • 2007-08-23
    • PCT/FR2007050612
    • 2007-01-05
    • ARKEMA FRANCEBONNET ANTHONYLAFFARGUE JOHANNBEAUME FRANCOIS
    • BONNET ANTHONYLAFFARGUE JOHANNBEAUME FRANCOIS
    • C08L23/00C08K5/00C08L27/16
    • C08L27/16C08K5/0008C08K5/06C08K5/10C08K5/32C08L23/00C08L23/0815C08L71/02C08L2205/06C08L2666/02C08L2666/04C08L2666/14
    • The invention relates to an extrusion agent comprising: at least one heterogeneous PVDF (A), in other words a copolymer of VDF and at least one comonomer of VDF, comprising by weight at least 50%, advantageously at least 75%, of VDF which has a melting point Tm (expressed in °C) > 172-549 m, preferably > 1.1 × (172-549 m), where m denotes the overall molar percentage of comonomer(s); and at least one interface agent (B), which are optionally diluted in a polyolefin (C). The heterogeneous PVDF preferably has a Tm of between 160 and 172°C. Advantageously it is also a VDF-HFP copolymer containing, by weight, from 88% to 92% of VDF and from 8% to 12% of HFP. The extrusion agent is used to reduce or eliminate the surface defects which arise during the extrusion of a thermoplastic resin (D). This resin may be a polyolefin, a styrenic resin, a polyester or a PVC. Optionally it may also be filled, i.e., may contain dispersed organic or inorganic particles.
    • 本发明涉及一种挤出剂,其包括:至少一种非均相PVDF(A),换言之,VDF和至少一种VDF共聚单体的共聚物,包含至少50%,有利地至少75%的VDF, 熔点Tm(以℃表示)>172-549μm,优选> 1.1×(172-549μm),其中m表示共聚单体的总摩尔百分数。 和至少一种界面剂(B),其任选地在聚烯烃(C)中稀释。 非均相PVDF优选具有160至172℃的Tm。 有利地,它也是含有重量百分比为88%至92%的VDF和8%至12%的HFP的VDF-HFP共聚物。 挤出剂用于减少或消除在挤出热塑性树脂(D)期间出现的表面缺陷。 该树脂可以是聚烯烃,苯乙烯树脂,聚酯或PVC。 任选地,它也可以被填充,即可以含有分散的有机或无机颗粒。
    • 9. 发明专利
    • DE602005007572D1
    • 2008-07-31
    • DE602005007572
    • 2005-01-07
    • ARKEMA FRANCE
    • BONNET ANTHONYLOERCH ELISABETHGERVAT LAURENTCIPRIANI REGISBEAUME FRANCOIS
    • C08L63/02C08G59/18C08G59/50C08J3/24C09J163/00D01F8/10
    • Thermoset materials and objects are obtained by making a formulation (A) containing an epoxide prepolymer and a rheology regulator (I), making a formulation (B) containing a hardener and (I), combining (A) and (B) to form a semi-finished product, forming to the required shape and reacting the combination, e.g. by thermoforming. A method for the production of thermoset materials and objects (T) involves (a) preparation of a formulation (A) containing 10-99 wt% epoxide prepolymer and 1-90 wt% rheology regulator(s) (I), (b) preparation of a formulation (B) containing 1-90 wt% hardener(s) and 10-99 wt% (I) (not necessarily the same regulator), (c) making a semi-finished product by simultaneous treatment of (A) and (B) depending on the nature of the required products, with due regard if necessary to the stoichiometry between prepolymer and hardener and including (as required) fibres, mats, fabric or other materials used in composites, (d) forming the required structure by conventional methods, e.g. drape forming, moulding or sandwich production and (e) reacting the formulation to give a composite by a conventional method such as thermoforming. Independent claims are also included for the following: (1) woven and knitted fabric made by a co-weaving process (stage c); (2) thermoset objects and materials made by co-extrusion or by impregnation with a powder mixture (stage c).