Composition suitable for thin-wall injection molded articles

Details Composition suitable for thin-wall injection molded articles Composition suitable for thin-wall injection molded articles

C - Chemistry, Metallurgy

08

L

C08L 23/14 (2006.01)

Patent

CA 2674686

Compositions suitable for manufacturing injection molded articles having a minimum wall thickness of from 500 µm to 2.0 mm comprise from: (A) 2 to 15% by weight of a propylene-ethylene copolymer having substantially isotactic propylene sequences; (B) 85 to 98% by weight of a random polypropylene copolymer having from 2.5 to 5.0% by weight units derived from ethylene and a melt flow rate of from 25 to 130 grams/10 minutes (g/10min); and (C) 500 to 2500 ppm by weight of a nucleator/clarifier additive (based on the weight of the random polypropylene copolymer). Typically, the melt flow rate of the compositions is from 20 to 125 g/10min, and the propylene-ethylene copolymer comprises at least 75% by weight propylene and has a melt flow rate from 4 to 30 g/10min.

L'invention concerne des compositions adaptées pour la fabrication d'articles moulés par injection ayant une épaisseur de paroi minimum allant de 500 µm à 2,0 mm constituée à partir de : (A) 2 à 15 % en poids d'un copolymère de propylène-éthylène ayant des séquences propyléniques sensiblement isotactiques; (B) 85 à 98 % en poids d'un copolymère de polypropylène aléatoire ayant de 2,5 à 5,0 % en poids d'unités dérivées d'éthylène et un débit à l'état fondu de 25 à 130 grammes/10 minutes (g/10 min); et (C) 500 à 2500 ppm en poids d'un additif nucléant/clarificateur (sur la base du poids du copolymère de polypropylène aléatoire). De manière typique, le débit à l'état fondu des compositions est de 20 à 125 g/10 min, et le copolymère de polyéthylène-éthylène comprend au moins 75 % en poids de propylène et un débit à l'état fondu de 4 à 30 g/10 min.

Affiliated with

Also associated with

Rating

Composition suitable for thin-wall injection molded articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composition suitable for thin-wall injection molded articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition suitable for thin-wall injection molded articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1785689