Soluble, solid, or crosslinked graft copolymers of lignin (2-pro

Details Soluble, solid, or crosslinked graft copolymers of lignin (2-pro Soluble, solid, or crosslinked graft copolymers of lignin (2-pro

1990-10-22

1992-05-26

Schofer, Joseph L.

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

Synthetic resins

Ethylenically unsaturated reactant admixed with a preformed...

527400, C08H 502

Patent

active

051169045

ABSTRACT:
A soluble, solid, or crosslinked graft copolymer of lignin-(2-propenamide)-(2-methyl-3-oxo-4-oxybut-1-ene-(p-ethoxy-(3*p +3)-ol) having a central lignin network and at least one grafted side chain, R, having randomly repeating units of the formula: ##STR1## such that the central lignin network has a molecular weight of about 1,000 to 150,000; the number of ethoxyl repeat units, p, in the polyol repeat unit is between 1 and 300,000; and the total number of random units in the grafted side chain, n+m, or chains, x*(n+m), is in the range of 1 to 300,000 units, such that the total copolymer molecular weight is in the range of 1,000 to 300,000,000.
The copolymers of the present invention are useful as 1) thickeners for water and aqueous solutions or 2) plastics and elastomers.

REFERENCES:
patent: 4889902 (1989-12-01), Meister
CA 99:124334a, 1983.
F. F. Chang and J. J. Meister, "Synthesis and Characterization of Grafted Lignin-2-Propenamide-HEM-5 Copolymers", Polymer Prepublication 3(1) 662-3, 1990 (American Chemical Society Publication).
Chemical Abstracts 113:116026u, 1990.
Chemical Abstracts 99:124333z, 124334a, 1983.

Affiliated with

Also associated with

Rating

Soluble, solid, or crosslinked graft copolymers of lignin (2-pro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Soluble, solid, or crosslinked graft copolymers of lignin (2-pro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soluble, solid, or crosslinked graft copolymers of lignin (2-pro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-420680