摘要:
Disclosed herein is a polyvinyl chloride resin composition for powder molding which comprises granular polyvinyl chloride resin (as component A), particulate polyvinyl chloride resin (as component B), stabilizer, plasticizer, and saccharide (as component C). Disclosed also herein is a process for producing said resin composition by mixing granular polyvinyl chloride resin (as component A), particulate polyvinyl chloride resin (as component B), stabilizer, plasticizer, and saccharide (as component C). The resin composition is suitable for the production of covering materials for automotive interior.
摘要:
A powder molding composition containing dry-blended polyvinyl chloride resins, plasticizers and stabilizers, which is characterized in that there are blended therein 0.05 to 5 parts by weight of barium salt of a carboxylic acid having a melting point not lower than 250.degree. C. and 0.01 to 5 parts by weight of zinc salt of a fatty acid containing 10 or more carbon atoms, per 100 parts by weight said polyvinyl chloride resins. The composition of the invention is excellent in releasability and resistance to mold staining.
摘要:
An expandable poly(vinyl chloride) resin composition for use in powder molding process containing a granular poly(vinyl chloride) resin, a fine-granular poly(vinyl chloride) resin, a plasticizer, a stabilizer, a foaming agent and an alkyl phosphate gives by a powder molding process an expansion-molded article having remarkably strengthened foamed cells and free from the occurrence of surface unevenness caused by polyurethane backing.
摘要:
Disclosed is a polyvinyl chloride resin powder composition containing (A) a granular polyvinyl chloride resin and (B) a fine granular vinyl chloride copolymer resin containing a copolymer composed of a vinyl chloride monomer and a carbonyloxy group-containing vinyl monomer, along with a stabilizer and a plasticizer. The composition is suitable for powder molding to produce covering materials of automotive interiors.
摘要:
Disclosed is a polyvinyl chloride resin powder composition for rotational molding, which is prepared by dry-blending a plasticizer and a stabilizer with a polyvinyl chloride resin followed by incorporating from 0.1 to 5 parts by weight, to 100 parts by weight of the polyvinyl chloride resin, of a finely divided polyvinyl chloride resin having a viscosity average polymerization degree of from 2000 to 5000 into the resulting dry blend. Also disclosed is a method of producing a molded article by subjecting the composition to rotational molding. The composition has good powder flowability for rotational molding, and the molded article from the composition is free from pin holes and blocks on the surface thereof.
摘要:
A polyvinyl chloride resin containing blended therein a hindered amine light stabilizer having the following structural formula (I): ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a lower alkyl group and R.sub.5 represents an alkylene or terminal acetyl group, in an amount of 0.01-5 parts by weight based on 100 parts by weight of a polyvinyl chloride resin.
摘要:
A polyvinyl chloride resin composition for powder molding, containing a dry blend of a polyvinyl chloride resin and a plasticizer, wherein the plasticizer is a mixed trimellitate of a mixture of compounds of the formula ##STR1## where R is an alkyl group, each of the compounds contains the same or different alkyl group in the same or different molecules, and the alkyl groups in the mixture have a straight chain ratio of at least 85 mol % and consist of 5 to 55 mol % of alkyl groups having at most seven carbon atoms, 45 to 95 mol % of alkyl groups having eight carbon atoms, and at most 10 mol % of alkyl groups having at least nine carbon atoms.
摘要:
The present invention relates to a foamable vinyl chloride resin composition for powder molding containing a foaming agent and method for the production thereof.
摘要:
A thermoplastic elastomer powder for powder molding, comprising an elastomer composition of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, wherein said elastomer composition has a complex dynamic viscosity .eta.*(1) as measured at frequency of 1 radian/sec. in dynamic viscoelasticity measurement at 250.degree. C., of 1.5.times.10.sup.5 poise or less, a Newtonian viscosity index n calculated from the following formula by using the complex dynamic viscosity .eta.*(1) at a frequency of 1 radian/sec. and the complex dynamic viscosity .eta.*(100) at a frequency of 100 radian/sec. of 0.67 or less, and a hardness (shore D) of 45 or less:n={log.eta.*(1)-log.eta.*(100)}/2.
摘要翻译:一种用于粉末成型的热塑性弹性体粉末,包括乙烯-α-烯烃共聚物橡胶和聚烯烃树脂的弹性体组合物,其中所述弹性体组合物具有以1弧度/秒的频率测量的复合动态粘度η(1)。 在250℃的动态粘弹性测定中为1.5×10 5泊以下,通过以1弧度/秒的频率使用复数动态粘度η(1)由下式算出的牛顿粘度指数n。 和100弧度/秒的频率下的复数动态粘度eta *(100)。 为0.67以下,硬度(Shore D)为45以下:n = {log eta *(1)-log eta *(100)} / 2。
摘要:
A thermoplastic elastomer powder for powder slush molding, comprising an elastomer composition of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, wherein said elastomer composition has a complex dynamic viscosity .eta.*(1) as measured at a frequency of 1 radian/sec. in a dynamic viscoelasticity measurement at 250.degree. C., of 1.5.times.10.sup.5 poise or less, a Newtonian viscosity index n calculated from the following formula by using the complex dynamic viscosity .eta.*(1) at a frequency of 1 radian/sec. and the complex dynamic viscosity .eta.*(100) at a frequency of 100 radian/sec. of 0.67 or less:n=[log.eta.*(1)-log.eta.*(100)]/2.
摘要翻译:一种用于粉末搪塑的热塑性弹性体粉末,包括乙烯-α-烯烃共聚物橡胶和聚烯烃树脂的弹性体组合物,其中所述弹性体组合物具有以1弧度/秒的频率测量的复数动态粘度η(1) 秒 在250℃下的动态粘弹性测量值为1.5×10 5泊或更小时,通过以1弧度/秒的频率使用复数动态粘度eta *(1)由下式计算的牛顿粘度指数n。 和100弧度/秒的频率下的复数动态粘度eta *(100)。 为0.67以下:n = [log eta *(1)-log eta *(100)] / 2。