| 摘要 |
Small amounts of a polyurethane elastomer are blended with an internally plasticized vinyl chloride copolymer to improve the abrasion resistance, elasticity, softness or "hand", and low temperature flexibility of films made from the resulting blend. …<??>The internally plasticized vinyl chloride copolymer may contain 50 to 80% by weight of vinyl chloride, 3 to 47% by weight of a C6-C10 alkyl acrylate and 47 to 3% by weight of a bis(hydrocarbyl)vinyl phosphonate. …<??>The polyurethane elastomer may have a Shore "A" hardness of 69 to 75 and an average particle size of under 1000 micrometers. |
