摘要:
An olefin polymer composition comprises a stabilizing amount of a metal deactivator comprising a polymeric hydrazine derivative. The deactivator is of formula (I), in which at least one of R 1 and R 2 comprise a polymeric radical that includes a substituted or unsubstituted aromatic radical. The olefin polymers include polyethylene and polypropylene.
摘要:
A polymeric composition having improved melt extrusion properties comprising: A) an olefin polymer; B) a catalyst neutralizer comprising a cationic derivative of a poly(oxyalkylene) compound; and C)a processing aid comprising an interactive diorganopolysiloxane compound containing hydroxyl-, carboxylic acid-, di(C1-20 hydrocarbyl)amino-, or C2-10 alkenyl-functional groups.
摘要:
The present invention is directed to polymeric article comprising a blend of (a) a first polymeric component; (b) a second polymeric component, the second polymeric component including a propylene elastomer or a substantially linear or linear ethylene polymer; and (c) at least one reinforcement material. The polymeric articles desirably have one or more of the following characteristics: a soft touch feel, a low gloss appearance, or a high surface durability.
摘要:
Disclosed is a carbonate polymer blend composition comprising (a) a carbonate polymer, (b) a propylene polymer, (c) a compatibilizing graft copolymer, (d) a polymer selected from a graft modified propylene polymer and/or an alpha-olefin carboxylic acid copolymer, and/or an olefin block copolymer, optionally (e) a filler, (f) optionally a thermoplastic resin other than (a), (b), (c), or (d) and (g) optionally one or more additive selected from stabilizers, pigments, mold release agents, flow enhancers, or antistatic agents. Said carbonate polymer blend composition has a good balance of physical properties, impact resistance, processability, and reduced gloss in molded articles.
摘要:
The present invention is a multistage process for the preparation of a co)polymer composition. Said process comprises the steps of: i) polymerizing in a first stage a reaction mixture comprising one or more monomer with optionally a rubber, a comonomer, a polymerization initiator, a chain transfer agent, a decomposition catalyst and/or a solvent, in the presence of one or more stable free radical precursor which provides a stable free radical during the polymerization process and/or one or more stable free radical such that the polymerization proceeds via a mediated free radical polymerization mechanism until a partial conversion of monomer(s) to (co)polymer is obtained and ii) polymerizing in a second stage the partially converted reaction mixture under reaction conditions that proceed via a free radical polymerization mechanism to obtain a further degree of conversion of monomer(s) to (co)polymer.