Coupling of polymers made by cationic polymerization

Details Coupling of polymers made by cationic polymerization Coupling of polymers made by cationic polymerization

1995-03-02

1997-11-25

Zemel, Irina

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

Synthetic resins

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

525314, 525316, C08F 1010, C08F29700, C08F29300

Patent

active

056908610

ABSTRACT:
A method for coupling a cationic polymer includes forming a reaction mixture of a cationic polymer and a bis(diphenylethylene). The reaction mixture is exposed to a temperature which causes the bis(diphenylethylene) to react with the cationic polymer, thereby coupling to cationic polymer. In another embodiment, the method includes forming a reaction mixture of an oxo-acid and a isopropenyl polyisobutylene. The reaction mixture is exposed to a temperature below about -30.degree. C., whereby the oxo-acid reacts with isopropenyl polyisobutylene, thereby coupling the polymer.

REFERENCES:
patent: 5219948 (1993-06-01), Storey et al.
patent: 5395885 (1995-03-01), Kennedy et al.
patent: 5428111 (1995-06-01), Faust et al.
patent: 5451647 (1995-09-01), Faust
patent: 5458796 (1995-10-01), Storey et al.
Kennedy et al., "Correlation between Cationic Model and Polymerization Reactions of Olefins," Institute of Polymer Science, The University of Akron, pp. 1-48 (1973).
Tung et al. "Dilithium Anionic Initiators Based on Double 1,1-Diphenylethylene Compounds," Macromolecules, 11(3):616-617 (1978).
Quirk et al., "Anionic Synthesis of Hetero Three-Armed Star Polymers Via 1,1-Diphenylethylene-Functionalized Macromonomers," Institute of Polymer Science, The University of Akron, pp. 578-579.
Hasegawa et al., "Selective Dimerization of Disobutylene by Oxo Acids: Synthesis of Isobutylene Tetramer," Journal of Applied Polymer Science, 27:171-181 (1982).

Affiliated with

Also associated with

Rating

Coupling of polymers made by cationic polymerization does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coupling of polymers made by cationic polymerization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling of polymers made by cationic polymerization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2104035