Abstract:
PROBLEM TO BE SOLVED: To provide a transparent block copolymer, especially a novel transparent block copolymer formed from a monovinyl-substituted aromatic monomer and a conjugated diene, and its production process. SOLUTION: This process for producing the transparent block copolymer comprises the first deactivating step of killing at least a part of a living copolymer chemical species R-S 1 -B 1 -M (wherein S 1 is a monovinyl-substituted aromatic homopolymer; B 1 is a conjugated diene homopolymer; M is an alkali metal; R is an alkyl; and RM is an initiator) with a polyfunctional deactivating agent and the second deactivating step of completely deactivating at least a living taper block copolymer chemical species R-S 1 -B 1 -B 2 /S 2 -M (which is obtained by adding raw materials B 2 /S 2 to the reaction medium) with a monofunctional deactivating agent (a terminator). COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous suspension polymerization process for producing a polymer having an improved color, especially a polyvinyl chloride and a PVDF product, and a process utilizing a combination of an N-substituted hydroxylamine chain stopper and a fixed polymerization initiator. SOLUTION: The improved process method is characterized in that vinyl chloride alone or a mixture of vinyl chloride and
Abstract in simplified Chinese:在根据本发明用于氯乙烯-单独或与另一乙烯型单体之混合物-水悬浮液聚合之方法中,聚合引发剂包含至少一种自过氧二碳酸二烷酯、过氧-第三-烷酸酯及二酰基化过氧选出之化合物及利用单-或双取代羟基胺作为中止聚合作用之用剂。如此所得之树脂具有改良之颜色及热稳定性。
Abstract:
To introduce polar group by a simple and easy method without spoiling solvent-resistance and mechanical/thermal properties which fluorine type resin inherently possess to provide a fluorine type resin composition improved in adhesion. To provide an electrode structure for battery improved in adhesion between the electrode active material and the current collector by using the composition as a binder. Solution measure: partially denatured fluorine type resin (B') obtained by partial dehydrogenfluoride reaction and oxidation reaction is mixed to at least one fluorine type resin (A) at a weight ratio of (A/B') of 30/70 to 99/1.
Abstract:
Problems: To provide a polyamide-type flame-retardant composition for powder coating showing little discoloration and uniform performance without spoiling surface property, appearance and adhesion to substrate. Solution: Polyamide-type flame-retardant composition for powder coating consisting mainly of polyamide, characterized in that at least one compound selected from a group of melamine type compounds having a particle size of higher than 10 mu m but lower than 100 mu m as flame retardant.
Abstract:
Problems: to provide an electrode structure possessing improved flexibility and adhesion between electrodes and collectors with reduced amount of binder, in an electrode for a battery comprising electrode active material and binder. Solution: a binder composition comprising a fluorine resin (A) dissolvable in a predetermined organic solvent and a resin (B) which is not dissolvable or partly dissolvable in said predetermined organic solvent, said fluorine resin (A) comprising at least one polymer selected from the group comprising a fluorine polymer (A1) whose solution dissolved in N-methylpyrolidone at a concentration of 8 % by weight possess a viscosity of 0.3 Pa.s to 20 Pa.s and a fluorine polymer (A2) having polar group, a weight ratio of A/B being 99/1 to 1/99.
Abstract translation:在包含电极活性材料和粘合剂的电池用电极中,电极结构具有改善的柔性和电极与收集体之间粘合力降低的粘合剂。 粘合剂组合物包含可溶解在预定有机溶剂中的氟树脂(A)和不溶于或部分溶解在所述预定有机溶剂中的树脂(B),所述氟树脂(A)包含至少一种选自以下的聚合物: 其包含溶解在N-甲基吡咯烷酮中的浓度为8重量%的氟聚合物(A1),其粘度为0.3Pa·s〜20Pa.s,具有极性基团的氟聚合物(A2)的重量比 A / B为99/1至1/99。
Abstract:
To provide a case for receiving a battery such as a polymer battery, made of a laminate possessing improved barrier to steam, hydrofluoric acid and other gases, improved mechanical strength, high resistance to piercing, high stability to electrolyte, resistance to high temperatures and humidity, a multi-layered sheet used in a battery case for receiving constituent materials of the battery, comprising a laminate consisting of at least one metal foil layer, an outer layer arranged outside said metal foil layer, an inner layer arranged inside said metal foil layer and a heat-seal layer arranged at the inner most side of said inner layer, the inner layer has at least one layer made of fluorinated resin.
Abstract:
The invention concerns a method for making acrylonitrile fibers. More particularly, it concerns a method for making acrylonitrile fibers characterized in that it is carried out in the presence of at least an azocarboxylic acid ester.
Abstract:
The present invention relates to offshore flexible pipes in which the sealing layers comprise, in this order: an inner layer formed from at least one thermoplastic polymer (A); optionally, a coextrusion tie layer; and a polyolefin layer. According to another embodiment of the invention, the sealing layers comprise, in this order: an inner layer formed from at least one thermoplastic polymer (A); optionally, a coextrusion tie layer; a polyolefin layer; optionally, a coextrusion tie layer; an outer layer formed from at least one thermoplastic polymer (B). The invention also relates to flexible pipes comprising these sealing layers. The invention also relates to the use of these flexible pipes for transporting fluids in offshore oil and gas extraction fields.
Abstract:
The present invention relates to a flexible and tough composition comprising: at least one vinylidene fluoride (VF2) homopolymer (A) or a copolymer (A) of VF2 and at least one other monomer copolymerizable with VF2, in which the said monomer is present in an amount of between 0 and 30 parts by weight per 100 parts by weight of VF2, at least one fluoroelastomer B, optionally a plasticizer C, in which, on the one hand, the said composition comprises from 0.5 to 10 parts by weight of B and from 0 to 10 parts by weight of C per 100 parts by weight of A, with the additional condition that the sum of B and C is from 0.5 to 10.5 parts by weight and, on the other hand, the vinylidene fluoride homopolymer or copolymer (A) is chosen in such a way that it has a melt flow index, measured according to the ISO 1133 standard at 230null C. under a load of 5 kg, of less than 5 g/10 min and a critical modulus GC, at the intersection of the melt shear moduli Gnull and Gnull measured at 190null C., of between 5 and 22 kPa. This composition is especially used for the manufacture of pipes for conveying hydrocarbons extracted from off-shore or on-shore oil deposits.