Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1979-02-12
1981-01-13
Hamrock, William F.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
435178, 435179, 435180, 435181, 525336, 525359, 525508, 536119, C08F 818, C08C 1912, C07H 1302, C12N 1110
Patent
active
042450640
ABSTRACT:
The invention relates to a solid insoluble carrier which is activated for bonding of nucleophilic groups and to a method of its preparation. The carrier contains active groups --O.CO.O.R, where R is the residue selected from the group comprising nitrophenyl, dinitrophenyl, trichlorophenyl, pentachlorophenyl, N-succinimidyl, N-phthalimidyl, and 8-quinolinyl. Active groups are bonded to polysaccharides, phenol-formaldehyde resins, polyacrylates, or polyacrylamides. The invention further relates to a method for preparation of the polymeric carrier, which consists in treatment of polymers carrying hydroxyl functions and selected from the group comprising polysaccharides, phenol-formaldehyde resins, polyacrylates, and polyacrylamides, with esters of chloroformic acid which contain the above mentioned active groups.
REFERENCES:
patent: 3705890 (1972-12-01), Barker et al.
patent: 3879353 (1975-04-01), Crawford
patent: 3959078 (1976-05-01), Guire
patent: 4090919 (1978-05-01), Chibata et al.
patent: 4101721 (1978-07-01), Rich et al.
Drobnik Jaroslav
Kalal Jaroslav
Labsky Jiri
Saudek Vladimir
Svec Frantisek
Ceskoslovenska akademie ved
Hamrock William F.
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