Polyester polymer and copolymer compositions containing...

C - Chemistry – Metallurgy – 08 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08L 67/02 (2006.01) C08J 3/20 (2006.01) C08J 5/00 (2006.01) C08K 3/14 (2006.01) C08K 3/28 (2006.01) C08K 7/24 (2006.01)

Patent

CA 2585142

Polyester compositions are disclosed that include polyester polymers or copolymers having incorporated therein titanium nitride particles that provide one or more of the following advantages: improving the reheat properties of the compositions, improving the color of the compositions through reduced yellowness, and improving the UV-blocking properties of the compositions. Processes for making such compositions are also disclosed. The titanium nitride particles may be incorporated in the polyester by melt compounding, or may be added at any stage of the polymerization, such as during the melt-phase of the polymerization. A range of particle sizes may be used, as well as a range of particle size distributions. The polyester compositions are suitable for use in packaging made from processes in which a reheat step is desirable, or decreased yellowness is desired, or increased resistance to the effects of ultraviolet light is desired, or any combination of the foregoing.

La présente invention concerne des compositions polyesters comprenant des polymères polyesters ou des copolymères polyesters qui contiennent des particules de nitrure de titane afin d'améliorer les propriétés de postcombustion des compositions; d'améliorer la couleur des compositions grâce à un jaunissement réduit et d'améliorer les propriétés anti-UV des compositions. Cette invention concerne également des procédés permettant de fabriquer ces compositions. Les particules de nitrure de titane peuvent être incorporées dans le polyester par compoundage, ou elles peuvent être ajoutées à tout moment lors de la polymérisation, par exemple, pendant la phase fondue de la polymérisation. Une gamme de dimensions de particules peut être utilisée ainsi qu'une gamme de granulométries. Les compositions polyesters peuvent être utilisées dans les emballages réalisés par des procédés nécessitant une étape de postcombustion ou dans lesquels un jaunissement réduit est souhaité, ou encore, dans lesquels une meilleure résistance aux effets des UV est souhaitée, ou toute combinaison de ces paramètres. .

LandOfFree

Say what you really think

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

Rating

Polyester polymer and copolymer compositions containing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyester polymer and copolymer compositions containing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyester polymer and copolymer compositions containing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1607903

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