Process for producing polypropylene impact block copolymers

Details Process for producing polypropylene impact block copolymers Process for producing polypropylene impact block copolymers

1995-05-05

1998-04-07

Jordan, Charles T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F 4649

Patent

active

H00017221

ABSTRACT:
A process for producing a polypropylene impact copolymer by polymerizing propylene and optionally a monomer selected from the group consisting of ethylene, butene-1, pentene-1, and hexene-1 in a first reactor in the presence of a titanium, magnesium, halogen, and a inside electron donor catalyst, an organoaluminum cocatalyst, and an outside electron donor, R.sup.1.sub.2 Si(OR.sup.2).sub.2, to produce a first polymer which enters a second reactor where it is reacted with propylene and another monomer in the absence of additional catalyst and in the presence of a third electron donor, Si(OR.sup.3).sub.4 is provided.

REFERENCES:
patent: 4855371 (1989-08-01), Job
patent: 4882380 (1989-11-01), Ficker et al.
patent: 4942148 (1990-07-01), Furuhashi
patent: 4971936 (1990-11-01), Wilson
patent: 5037905 (1991-08-01), Cummings et al.
patent: 5093415 (1992-03-01), Brady, III et al.
patent: 5162277 (1992-11-01), Job
patent: 5218052 (1993-06-01), Cohen
patent: 5219960 (1993-06-01), Tamano
patent: 5294581 (1994-03-01), Job
patent: 5414063 (1995-05-01), Seeger

Affiliated with

Also associated with

Rating

Process for producing polypropylene impact block copolymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing polypropylene impact block copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing polypropylene impact block copolymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3118