Patent ID: 9187631
Filing Date: 2015-11-17
Classification: C08F,C08K,C08L

Abstract:
1. A soft-touch feel polymeric composition comprising a blend of: i. 27 to 55 weight percent of a first polymeric component including a relatively hard thermoplastic, based on the total weight of the polymeric composition, wherein the first polymeric component is a polypropylene homopolymer, wherein the polypropylene homopolymer is an isotactic polypropylene and has a melting temperature greater than about 140° C. and is characterized by a melt flow rate from 40-60 g/10 min as measured according to ASTM D-1238 at 230° C./2.16 kg; ii. 25 to 60 weight percent of a second polymeric component, based on the total weight of the first polymeric component and the second polymeric component, wherein the second polymeric component is a relatively soft thermoplastic as compared with the first polymeric component, wherein the relatively soft thermoplastic is a lower-α-olefin/α-olefin interpolymer which is a multiblock copolymer having at least two hard blocks and at least two soft blocks that are softer than the hard blocks, wherein the concentration of the soft blocks is 50 to 90 weight percent based on the total weight of the lower-α-olefin/α-olefin interpolymer, and the interpolymer has a density of 0.860 to 0.900 g/cm iii. 10 to 40 weight percent glass fibers, based on the total eight of the polymeric composition, and iv. 0.01 to 5 weight percent maleic anhydride grafted polypropylene coupling agent, based on the total weight of the polymeric composition; wherein the polymeric composition has a flexural modulus of 350 MPa to 3500 MPa; and wherein the polymeric composition can be formed into an article having a gloss of 0.6 to 1.7 GU as measured according to ASTM D-542 using N111 texture with micro matt and a mar resistance of less than about 2 GU as measured according to GMW 14688 at 6N; wherein the polymeric composition is an injection molding composition characterized by a melt flow rate of at least about 5 g/10 min as measured according to ASTM D-1238 Condition 230° C. 2.16 kg.