Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-06-05
1997-06-03
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525417, 528367, 528403, 528424, 548237, 548239, 560103, 560105, 560110, 560251, 560266, C08L 7904, C08G 7306
Patent
active
056355718
ABSTRACT:
Polyoxazolines having the structural formula: ##STR1## wherein R is phenylene or alkylene containing 2 to 18 carbon atoms, R.sup.2 is C.sub.1-4 alkyl and R.sub.1 is selected from the group consisting of C.sub.1-12 alkyl, vinyl, isopropylidene, pentafluoroethyl, phenyl, hydroxyphenyl which is optionally interrupted by up to 20 ethylene oxide groups, C.sub.1-2 -alkoxyphenyl which is optionally interrupted by up to 20 ethylene oxide groups and .paren open-st.CH.sub.2 CH.sub.2 --O.paren close-st..sub.r CH.sub.3 in which r ranges from 1-20, X is NH.sub.2 or OH, n ranges from 2 to 50 and m ranges from 0 to 50, wherein R.sub.1 is hydroxyphenyl optionally interrupted by up to 20 ethylene oxide groups only when X is NH.sub.2, are polymerizable to form hyperbranched polymers which have a number average molecular weight ranging from 5,000 to 150,000, a weight average molecular weight ranging from 5,500 to 5,000,000 and a polydispersity ranging from 1.1 to 300 and which are very polar and highly wettable and are useful as adhesives, biodegradable materials, biomaterials, carriers for chemicals, carriers for image contrast agents, coatings, components of blends, components of medical imaging formulations, crosslinkers, dispersants, drug carriers, imaging materials, resists for lighography, slow release agents, vectors for gene therapy, and viscosity modifiers.
REFERENCES:
patent: 3483145 (1969-12-01), Levy et al.
patent: 4540747 (1985-09-01), Saegusa et al.
patent: 4857630 (1989-08-01), Kim
patent: 5041516 (1991-08-01), Frechet et al.
patent: 5136014 (1992-08-01), Figuly
patent: 5196502 (1993-03-01), Turner et al.
patent: 5214122 (1993-05-01), Turner et al.
patent: 5225522 (1993-07-01), Turner et al.
Chemical Abstracts 101:231861, "Thermally Stable Polyesters" Jun. 1984.
Chemical Abstracts 115:135986, "Synthesis of 2-Functionally Substituted Oxazolines" 1991.
Structure Diagrams for Chemical Abstracts Registry Nos. 29257-50-9; 17612-21-4; 10826-66-4; 16105-42-3 and 131269-11-9.
Levy, A., et al., J. Polym. Sci., Part A-1, vol. 6, No. 7, pp. 1883-1894 (1968).
Alper, J., Science, 251, 1562-1564 (Mar. 1991).
Futuretech Strategic Markets, No. 161, Technical Insights, Inc., Engelwood, NJ, pp. 1-20, May 24, 1993.
Hawker, C.J., et al, J. Am. Chem. Soc. 114, 8405-8413 (1992).
Hawker, C. J., et al, J. Chem. Soc. Perkin Trans. 1, 2459-2469 (1992).
High-Tech Materials Alert, vol. 10, No. 5, pp. 1-2, May 1993.
Hodge, P., Nature, 362, 18-19, Mar. 4, 1993.
Gitsov, I., et al, Angew. Chem. Int. Ed. Engl., 31, No. 9, 1200-1202, 1992.
Hawker, C., et al, J. Chem. Soc., Chemical Communications, Issue 15, 1990, pp. 1010-1013.
Hawker, C. J., et al, Polymer, 33, 1507-1511 (1992).
Hawker, C. J., et al, Chemistry in Australia, 620-622, Dec. 1992.
Inside R & D, p. 5, Apr. 21, 1993.
Saville, P. M., et al, J. Phys. Chem., 97, 293-294, 1993.
Hawker, C. J., et al, J. Am. Chem. Soc. 112, 7638-7647 (1990).
Hawker, C. J., et al, Polymer Prep. 34(1), 54-55 (1993).
Frechet Jean M. J.
Yui Koji
Cornell Research Foundation Inc.
Krass Frederick
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