Biodegradable hydrophilic crosslinked polymer, process for produ

Details Biodegradable hydrophilic crosslinked polymer, process for produ Biodegradable hydrophilic crosslinked polymer, process for produ

1992-08-20

1994-03-29

Michl, Paul R.

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

Synthetic resins

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

5253299, 5253301, 5253305, 525374, 525386, 526213, 5263183, 52631842, 526932, 523124, C08F 814, C08F12202

Patent

active

052985709

ABSTRACT:
The invention provides biodegradable crosslinked polymers, which have a chelating effect and a dispersing effect to disperse an oily substance and an inorganic substance hardly soluble in water and are excellent in dispersion into water. The crosslinked polymers comprise; an ingredient of molecular weight 5,000 or less in 50% by weight, a bond having at least one of a group (II) represented by the chemical formula --CO--O-- and a group (III) represented by the chemical formula --CO--NH-- as a composition unit between main chains having a water-soluble oligomer structure having the functional group (I) represented by the general formula --COOM (here, M denotes anyone of a hydrogen atom, monovalent metal, divalent metal, trivalent metal, an ammonium group and organic amine group.), and showing a viscosity of 1,000 cP or less at 20.degree. C. by a 20% by weight aqueous solution of the crosslinked polymer.

REFERENCES:
patent: 3687909 (1972-08-01), Vaughn
patent: 4120839 (1978-10-01), Emmons et al.
patent: 4666983 (1987-05-01), Tsubakimoto et al.
patent: 4727111 (1988-02-01), Pettit, Jr. et al.
patent: 4758641 (1988-07-01), Hsu
patent: 4764554 (1988-08-01), Tonge
patent: 4800220 (1989-01-01), Ribba
patent: 4808641 (1989-02-01), Yagi et al.
patent: 4870120 (1989-09-01), Tsubakimoto et al.
patent: 4980088 (1990-12-01), Boeckh et al.
patent: 5064563 (1991-11-01), Yamaguchi et al.
patent: 5104951 (1992-04-01), Seelman-Eggebert et al.
patent: 5135677 (1992-08-01), Yamaguchi et al.
patent: 5159041 (1992-10-01), Khoshdel et al.
patent: 5183707 (1993-02-01), Herron et al.
Polymer Preprints, Japan, vol. 38, No. 3 (1989).

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