Continuous process and system for producing polymers comprising

Details Continuous process and system for producing polymers comprising Continuous process and system for producing polymers comprising

1987-08-11

1989-07-18

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526216, 526227, 526228, 526272, C08F 200

Patent

active

048494895

ABSTRACT:
A continuous process and system for producing a polymer comprising maleic anhydride and alpha-olefin monomeric units is disclosed. The process comprises combining monomeric reactants comprising the maleic anhydride and the alpha-olefin, in the presence of a minimal effective amount of a solvent, to produce a polymerizable reaction mixture. The solvent is present in minimal amounts, namely, at about 2 to about 9 weight percent, based upon the weight of the reaction mixture. The polymerizable reaction mixture is heated; and at least one thermally-decomposable initiator is added to the thus-heated, polymerizable reaction mixture to initiate the polymerization reaction. The presence of the initiator causes the maleic anhydride and the alpha-olefin to polymerize, thereby producing the desired polymer. An effective additional amount of the monomeric reactants as well as an additional effective amount of solvent, are controllably and substantially continuously added to the reaction mixture, for maintaining the desired polymerization reaction. The produced polymer is thereafter continuously removed from the reaction mixture.

REFERENCES:
patent: Re28475 (1975-07-01), Blecke et al.
patent: 2857365 (1958-10-01), Johnson
patent: 2913437 (1959-11-01), Johnson
patent: 2938016 (1960-05-01), Johnson
patent: 2980653 (1961-04-01), Johnson
patent: 3461108 (1969-08-01), Heilman et al.
patent: 3488311 (1970-01-01), Burdick et al.
patent: 3553177 (1971-01-01), Hazen et al.
patent: 3560455 (1971-02-01), Hazen et al.
patent: 3560456 (1971-02-01), Hazen et al.
patent: 3560457 (1971-02-01), Hazen et al.
patent: 3954720 (1976-05-01), Spoor et al.
patent: 4026967 (1977-05-01), Flexman, Jr. et al.
patent: 4090998 (1978-05-01), Dirks et al.
patent: 4202955 (1980-05-01), Gaylord
patent: 4250289 (1981-02-01), Denzinger et al.
patent: 4358573 (1982-11-01), Verbrugge
patent: 4370454 (1983-01-01), Messmer et al.
patent: 4526950 (1985-07-01), Grava

Affiliated with

Also associated with

Rating

Continuous process and system for producing polymers comprising does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous process and system for producing polymers comprising , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous process and system for producing polymers comprising will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-173004