Novel propylene polymers and products thereof

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 10/06 (2006.01) C08F 297/08 (2006.01) C08L 23/10 (2006.01) C08L 53/00 (2006.01) C08F 110/06 (2006.01) C08F 210/06 (2006.01)

Patent

CA 2308075

The present invention concerns nucleated propylene polymers having a xylene soluble fraction at 23 °C of less than 2.5 %, a crystallization temperature of over 124 °C and a tensile modulus of greater than 2,000 MPa. These polymers can be prepared by nucleating a propylene polymer with a polymeric nucleating agent containing vinyl compound units, and by polymerizing propylene optionally with comonomers in the presence of a Ziegler-Natta catalyst system primarily transesterified with a phthalic acid ester - a lower alcohol pair to provide said propylene polymer. The catalyst contains a strongly coordinating external donor.

La présente invention concerne des polymères de propylène nucléés possédant une fraction soluble dans le xylène à 23 DEG inférieure à 2,5 %, une température de cristallisation supérieure à 124 DEG C et un module d'élasticité supérieur à 2 000 MPa. On fabrique ces polymères par nucléation d'un polymère de propylène avec un agent de nucléation polymère qui contient des unités de composés de vinyle, et par polymérisation de propylène, éventuellement avec des comonomères, en présence d'un système catalytique Ziegler-Natta, préalablement transestérifiés avec une paire ester d'acide phtalique - alcool inférieur, et ce afin d'obtenir ledit polymère de propylène. Le catalyseur comprend un donneur extérieur à degré élevé de coordination.

LandOfFree

Say what you really think

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

Rating

Novel propylene polymers and products thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Novel propylene polymers and products thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Novel propylene polymers and products thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1906024

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