Hydrogenated styrenic block copolymers blends with polypropylene

1) A molding composition of at least the following 3 components, comprising:

• at least about 70% by weight of a polypropylene or polypropylene random copolymer;
• up to 30% by weight of a block copolymer composition comprising at least one selectively hydrogenated styrene diene block copolymer having the general formula of S-HD-S or (S-HD)x-Z, where S is polymerized block of monoalkenyl aromatic hydrocarbon monomers, HD is a hydrogenated block of polymerized conjugated diene monomer or monomers, and Z is a coupling agent, and x is the number of arms which can vary from 1 to 20, and at least 2500 ppm of a clarifying agent conforming to the structure of Formula (I)
• wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are each independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, alkenyl groups, aryl groups, caboxyl groups, and halogens;
• and R11 is a hydroxyalkyl group selected from the group consisting of —CH2OH and —CHOHCH2OH, wherein said block copolymer composition has a refractive index that substantially matches said polypropylene or polypropylene random copolymer (+/−0.008 refractive index units) and the glass transition temperature of the HD block is about −50° C. to −55° C. as measured by DSC.