Sulphonation process for low crosslinked polystyrene

Details Sulphonation process for low crosslinked polystyrene Sulphonation process for low crosslinked polystyrene

1993-03-24

1994-01-18

Henderson, Christopher

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

Synthetic resins

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

525242, 5253322, C08F 836

Patent

active

052800822

ABSTRACT:
Crosslinked styrenic polymers may be sulphonated in a controlled manner in an organic solvent at elevated temperature using SO.sub.3 in the presence of a trialkyl phosphate. The process does not introduce further crosslinking into the polymer permitting it to have an extremely high water uptake. The resulting polymer is useful as a hydrogel.

REFERENCES:
patent: 3072618 (1963-01-01), Turbak
patent: 3128257 (1964-04-01), Hoover
patent: 3133030 (1964-05-01), Wheaton
patent: 3158583 (1964-11-01), Corte
patent: 3205285 (1965-09-01), Turbak
patent: 3870841 (1975-03-01), Makowski
patent: 4209592 (1980-06-01), Akiyama et al.
patent: 4448935 (1984-05-01), Iovine et al.

Affiliated with

Also associated with

Rating

Sulphonation process for low crosslinked polystyrene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sulphonation process for low crosslinked polystyrene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sulphonation process for low crosslinked polystyrene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1136946