Electrostatic-dissipative multipolymer compositions

C - Chemistry – Metallurgy – 08 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08L 33/10 (2006.01) C08L 51/00 (2006.01) C08L 71/02 (2006.01) C08L 77/12 (2006.01) C09K 3/16 (2006.01)

Patent

CA 2382825

A substantially transparent, moldable, thermoplastic multipolymer composition comprising a methyl methacrylate copolymer containing a predominant amount of methyl methacrylate and a minor amount of one or more ethylenically unsaturated monomers; and an effective amount of a polyetheresteramide to enhance the electrostatic charge dissipation of the copolymer. The polyetheresteramide has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition, when subjected to injection molding, is such that the injection-molded composition exhibits a haze of not greater than about 25 % and a light transmission of at least about 60 %. Preferably, the composition includes an impact modifier which also has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition may also include a minor amount of a polyethylene glycol having a weight average molecular weight of about 2,000 to about 10,000.

L'invention concerne une composition multipolymère thermoplastique sensiblement transparente moulable, comprenant un copolymère de méthacrylate de méthyle contenant une quantité prédominante de méthacrylate de méthyle et une quantité plus faible d'un ou de plusieurs monomères non saturés en éthylène, et une quantité efficace de polyétherestéramide destinée à faciliter la dissipation de la charge électrostatique du copolymère. Le polyétherestéramide possède un indice de réfraction correspondant à environ 0,005 unités de l'indice de réfraction du copolymère. Soumise au moulage par injection, la composition présente un voile de moins de 25 % environ et une transmission de lumière d'au moins 60 % environ. La composition comprend, de préférence, un antichoc possédant également un indice de réfraction correspondant à environ 0,005 unités de l'indice de réfraction du copolymère. La composition peut également inclure une faible quantité d'un polyéthylèneglycol ayant un poids moléculaire moyen de 2000 à 10000 environ.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Electrostatic-dissipative multipolymer compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrostatic-dissipative multipolymer compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic-dissipative multipolymer compositions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2003533

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.