Process for radiation grafting hydrogels onto organic polymeric substrates

Patent · Wed Dec 31 23:00:00 EST 1975

OSTI ID:862464

Ratner, Buddy D ^[1]; Hoffman, Allan S ^[1]

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1. Seattle, WA

An improved process for radiation grafting of hydrogels onto organic polymeric substrates is provided comprising the steps of incorporating an effective amount of cupric or ferric ions in an aqueous graft solution consisting of N-vinyl-2 - pyrrolidone or mixture of N-vinyl-2 - pyrrolidone and other monomers, e.g., 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, propylene glycol acrylate, acrylamide, methacrylic acid and methacrylamide, immersing an organic polymeric substrate in the aqueous graft solution and thereafter subjecting the contacted substrate with ionizing radiation.

• Research Organization: Washington Univ., Seattle (USA)
• DOE Contract Number: AT(45-1)-2225
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3939049
• OSTI ID: 862464
• Country of Publication: United States
• Language: English

Related Subjects

/522/525/
2-hydroxyethyl
acid
acrylamide
acrylate
acrylic acid
amount
aqueous
comprising
consisting
contacted
cupric
effective
effective amount
ferric
glycol
graft
grafting
hydrogels
immersing
improved
improved process
incorporating
ionizing
ionizing radiation
methacrylamide
methacrylate
methacrylic
methacrylic acid
mixture
monomers
n-vinyl-2
organic
organic polymer
organic polymeric
polymeric
polymeric substrate
polymeric substrates
process
propylene
propylene glycol
provided
provided comprising
pyrrolidone
radiation
radiation grafting
solution
solution consisting
steps
subjecting
substrate
substrates
thereafter