Organic-inorganic composite

Details Organic-inorganic composite Organic-inorganic composite

2006-05-23

2006-05-23

Brunsman, David M. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S779000, C106S207100, C106S217010, C106S780000, C106S805000, C106S162810

Reexamination Certificate

active

07048794

ABSTRACT:
An inorganic-organic composite comprises an inorganic phase, such as gypsum crystals, and a film forming organic phase. The film forming organic phase is selected from substituted starches having a degree of polymerization; degree of substitution and viscosity such that the substituted starches are insoluble in water during mixing but dissolve at a higher processing temperature during forming, setting or drying of the composite. Thus, excessive migration of the substitute starch is prevented and the composite is substantially strengthened.

REFERENCES:
patent: 2388543 (1945-11-01), Hoggatt
patent: 3414467 (1968-12-01), Ferrara
patent: 3462283 (1969-08-01), Hjermstad et al.
patent: 3672922 (1972-06-01), Brouilliard et al.
patent: 4505775 (1985-03-01), Harding et al.
patent: 5104731 (1992-04-01), Gager
patent: 6113923 (2000-09-01), Le Bourhis
patent: 6846856 (2005-01-01), Soane et al.
patent: 6902797 (2005-06-01), Pollock et al.
patent: 2002/0128352 (2002-09-01), Soane et al.

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