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:
A powder molding composition containing dry-blended polyvinyl chloride resin plasticizer and stabilizer, which is characterized in that there are blended therein 0.05 to 5 parts by weight of carboxylic acid barium salt having a melting point not lower than 250 °C and 0.01 to 5 parts by weight of zinc salt of fatty acid containing 10 or more carbon atoms, per 100 parts by weight said polyvinyl chloride resin. The composition of the invention is of excellent releasability and resistance to mold staining.
摘要:
A polyvinyl chloride resin composition incorporating at least 0.01 parts by weight of hindered amine light stabilizer of formula (I) per 100 parts by weight of polyvinyl chloride resin wherein R₁, R₂, R₃ and R₄ represent lower alkyl groups and R₅ represents an alkylene or terminal acetyl group.
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 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 resin plasticizer and stabilizer, which is characterized in that there are blended therein 0.05 to 5 parts by weight of carboxylic acid barium salt having a melting point not lower than 250 °C and 0.01 to 5 parts by weight of zinc salt of fatty acid containing 10 or more carbon atoms, per 100 parts by weight said polyvinyl chloride resin. The composition of the invention is of excellent releasability and resistance to mold staining.
摘要:
A vinyl chloride resin composition for powder molding which is obtainable by a method comprising a first step in which from 40 to 120 parts by weight of plasticizer is blended with 100 parts by weight of granular vinyl chloride resin obtainable by suspension or bulk polymerisation; a second step in which from 0.5 to 40 parts by weight of at least one polymer or copolymer having an active hydrogen in the molecule [component (A)] and from 0.1 to 10 parts by weight of crosslinkable isocyanate compound [component (B)] are added and dry-blended; and a third step in which while the dry-blend system is cooling from a maximum temperature, finely powdered vinyl chloride resin obtainable by emulsion or micro-suspension polymerisation is added to coat the dry-blend.
摘要:
The use of C 5 -C 8 alkyl group fatty acid metal soap, particularly a mixture of barium and zinc such metal soaps, to satibilize polyvinyl chloride powder molding compositions against mold staining. The compositions preferably also include magnesium compound stabilizer to improve amine resistance when the molded product is to have polyurethane foam formed in situ thereon.