Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carbohydrate or derivative as a reactant
Patent
1987-10-26
1989-09-12
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carbohydrate or derivative as a reactant
527305, 527306, 527313, 1621641, 1621646, C08B 3108, C08B 3714, D21H 320
Patent
active
048661511
ABSTRACT:
Polysaccharide graft polymers which comprise an acetal-containing or aldehyde-containing homopolymer or copolymer grafted to a polysaccharide base have been prepared. The monomer repeating units in the homopolymer are derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group; The monomer repeating units in the copolymer are derived from the above monomer and derived from one or more ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer. A and A' are independently a lower alkyl or A and A' together form at least a 5-membered cyclic acetal; with the proviso that the graft polymer contain no ##STR1## groups when the aldehyde groups are present. The aldehyde-containing graft polymers are useful for imparting wet strength to paper. Various novel acetal- and aldehyde-containing monomers have also been prepared; they can be graft polymerized to polysaccharide substrates or polymerized by conventional emulsion polymerization techniques with vinyl polymerizable monomers.
REFERENCES:
patent: 2803558 (1957-08-01), Fronmuller
patent: 3062652 (1962-11-01), Jeffreys et al.
patent: 3086969 (1963-04-01), Slager
patent: 3519618 (1970-07-01), Parmerter
patent: 3553193 (1971-01-01), LeRoy et al.
patent: 3632802 (1972-01-01), BeMiller et al.
patent: 3740391 (1973-06-01), Williams et al.
patent: 4508594 (1985-04-01), Jansma et al.
patent: 4663448 (1987-05-01), Chiu
patent: 4675394 (1987-06-01), Solarek et al.
patent: 4703116 (1987-10-01), Solarek et al.
patent: 4731162 (1988-03-01), Solarek et al.
patent: 4741804 (1988-05-01), Solarek et al.
Billmers Robert L.
Jobe Patrick G.
Tsai John J.
Kelley Margaret B.
Kight John
National Starch and Chemical Corporation
Nutter Nathan M.
Szala Edwin M.
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