C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/2044
C08F 297/04 (2006.01) C08G 81/02 (2006.01)
Patent
CA 1067643
ABSTRACT OF THE DISCLOSURE Non-linear, solution diene rubbers, e.g. SBR, obtain improved green strength, if less than 30% of the polymer chains is "capped" with a polystyrene block having a mol. weight of, e.g., 20,000. They are obtained by coupling polymer blocks B'-Li and A-B-Li in a molar ratio of at least 2.5 with an at least trifunctional coupling agent, wherein A is a polymer block of a monoalkenyl or monoalkenylidene aromatic hydrocarbon having an average molecular weight between 5,000 and 35,000, B and B' are polymer blocks substantially comprising polymerized con- jugated diene molecules. These rubbers exhibit an improved green strength whilst retaining adequate processability and satisfactory properties after vulcanization.
237975
LandOfFree
Preparation of a non-linear, elastomeric copolymer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preparation of a non-linear, elastomeric copolymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of a non-linear, elastomeric copolymer will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-97840