Polysaccharide esters containing acetal and aldehyde groups

Details Polysaccharide esters containing acetal and aldehyde groups Polysaccharide esters containing acetal and aldehyde groups

1987-03-09

1989-01-31

Schofer, Joseph L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 32, 536 33, 536 48, 536 52, 536102, 536107, 536114, C08G 1810

Patent

active

048016993

ABSTRACT:
Polysaccharide esters containing aldehyde and acetal groups having the structural formulas ##STR1## are prepared by reacting a polysaccharide, such as a starch, gum, or cellulose, with an acetal-containing reagent which contains a functional group reactive with the hydroxyl groups of the polysaccharide; Z is a multivalent organic group; A and A' are independently a lower alkyl or together form at least a 5-membered cyclic acetal; x is at least 1; and y is at least 1. When x is>1 the esters are corsslinked. Typical reagents for introducing the acetal group include 3,3-diethoxypropionyl guanidine (itself a novel compound) and 4-(methylaminoacetaldehyde dimethyl acetal)-4-oxo-butanoic acid). The derivatives are useful in conventional applications such as coatings, adhesives, paper additives and foodstuffs.

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), Parmerier
patent: 3553193 (1971-01-01), Le Roy et al.
patent: 3632802 (1972-01-01), BeMiller et al.
patent: 3728332 (1973-04-01), Tessler et al.
patent: 3740391 (1973-06-01), Williams et al.
patent: 4447294 (1984-05-01), Osborn, III
patent: 4508594 (1985-04-01), Jansma et al.
patent: 4675394 (1987-06-01), Solarek et al.

Affiliated with

Also associated with

Rating

Polysaccharide esters containing acetal and aldehyde groups does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polysaccharide esters containing acetal and aldehyde groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polysaccharide esters containing acetal and aldehyde groups will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-178195