Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1998-11-13
1999-11-30
Higel, Floyd D.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
424 7802, 424401, A61R 31415, A61R 3174, A01J 2100, A01J 2512
Patent
active
059943858
ABSTRACT:
A process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units, in alcohol solution, at a temperature of about 60-160.degree. C., during a reaction period of about 1-25 hours. The product is a polymer having a predetermined ratio of the above repeat units. The polymers are included in personal care poducts.
REFERENCES:
patent: 2262262 (1941-11-01), Speer
patent: 4839072 (1989-06-01), Gutierrez et al.
patent: 4841069 (1989-06-01), Olsen
patent: 5554768 (1996-09-01), Donges et al.
patent: 5869695 (1999-02-01), Ulmer et al.
Gillece Timothy
Katirgis John A.
Ulmer Herbert W.
Davis William J.
Higel Floyd D.
ISP Investments Inc.
Katz Walter
Maue Marilyn J.
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