摘要:
A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
摘要:
A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
摘要:
A polyimide resin composition comprising 50-95 parts by weight of a polyimide resin represented by the following formula (1): ##STR1## wherein X represents a direct bond, a hydrocarbon group, a carbonyl group, a thio group or so, Y.sub.1 -Y.sub.4 individually represent a hydrogen atom, a lower alkyl group or so and R.sub.1 represents an aliphatic group, an aromatic group or so; and 50-5 parts by weight of a polyetheretherketone, said composition having been subjected to heat treatment at 250.degree.-330.degree. C. and, after the heat-treatment, having crystallization enthalpy of 0-6 cal/g.The heat treatment of the polyimide resin composition can be effected at a low temperature in a short time. The polyimide resin composition has excellent dimensional stability and high-temperature physical properties. Moreover, it has excellent moldability and peeling resistance.
摘要:
A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
摘要:
[Problem] To provide an ionomer resin capable of forming a polyolefin molded product having well-balanced two properties of molding processability and mechanical property, a resin composition including the ionomer resin and a molded product formed from the ionomer resin or the resin composition. [Solution to problem] An ionomer resin (X1) formed from 100 parts by weight of (A) an olefin polymer having constitutional units derived from an α-olefin of 2 to 20 carbon atoms and having a functional group (a) and 0.01 to 100 parts by weight of (B) a metal salt having two or more functional groups (b).
摘要:
In a coextrusion molding method, a laminate having excellent interlaminar adhesion strength with a fluorocopolymer is provided, and also a laminate which can be used more than enough even at high temperatures or in applications where the laminate comes into contact with oil, gasoline or the like by controlling various properties of the adhesive layer is provided.The laminate of the present invention is a laminate of at least two or more layers comprising a structure obtained by bonding and laminating an adhesive (A) defined by the following (i) to (iii) and a fluorocopolymer (B), wherein the adhesive (A) (i) is obtained by allowing a polyolefin (a) having a group reactive with a carbodiimide group to react with a compound (b) having a carbodiimide group, (ii) has a ratio of peak intensity at 2130 to 2140 cm−1 to peak intensity at 1470 cm−1 of 60% or lower in infrared absorption spectroscopy, and (iii) has a density of 0.870 to 0.940 g/cm3. In the formula (1), R1 and R2 each independently represent a hydrogen atom or fluorine atom. In the formula (2), R3 represents a substituent represented by CnH2n+1 (in which n is an integer of 1 or more).
摘要翻译:在共挤出成型方法中,提供了与含氟共聚物具有优异的层间粘合强度的层压体,以及即使在高温下也可以使用的层压体,或者在层压体与油,汽油等接触的应用中 通过控制粘合剂层的各种性质。 本发明的层压体是至少两层以上的层压体,其包含通过粘合和层压由下列(i)至(iii)限定的粘合剂(A)和含氟共聚物(B)而获得的结构,其中粘合剂 (A)(i)是通过使具有与碳二亚胺基反应的基团的聚烯烃(a)与具有碳二亚胺基的化合物(b)反应而获得的,(ii)峰强度的比例为2130〜2140cm -1在红外吸收光谱中在1470cm -1处的峰强度为60%以下,(iii)密度为0.870〜0.940g / cm 3。 在式(1)中,R 1和R 2各自独立地表示氢原子或氟原子。 在式(2)中,R 3表示由C n H 2n + 1表示的取代基(n为1以上的整数)。
摘要:
An ionomer resin composition according to the present invention is obtained by bringing a functional group-containing olefin copolymer (A) having a structural unit derived from a cyclic olefin in the range of 10 percent by mol or more and having a group derived from an acid and/or a derivative thereof as the functional group into contact with a metal compound (B). A shaped article having well-balanced two excellent properties of the optical characteristics and the moisture permeability can be formed by using the ionomer resin composition.
摘要:
An object of the present invention is to provide an aid for filler-reinforced resins, a filler-reinforced resin composition comprising the aid for filler-reinforced resins, and a molded article formed from the filler-reinforced resin composition. The above aid for filler-reinforced resins is capable of improving reinforcing properties and dispersibility of the filler in the filler-reinforced resin composition, and when the filler-reinforced resin composition is formed into a molded article, the aid for filler-reinforced resins enables the molded article to have superior mechanical characteristics, such as an impact resistance and a flexural strength. The present invention provides an aid (C) for filler-reinforced resins which is a modified polyolefin obtained by a reaction between a polyolefin resin (A) having a group reactive with a carbodiimide group and a compound (B) having a carbodiimide group, in which the content of the carbodiimide group to 100 g of the modified polyolefin is 1 to 200 mmol; a filler-reinforced resin composition comprising the aid (C) for filler-reinforced resins, a polypropylene-based resin (F), and a filler (G); and a molded article formed by molding the resin composition.