Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Reexamination Certificate
2005-11-15
2005-11-15
Brunsman, David (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
C106S207300, C156S205000, C156S210000, C428S182000
Reexamination Certificate
active
06964703
ABSTRACT:
Novel starch-based glue paste compositions are disclosed composed of (i) a carrier paste containing 5 to 16 wt % of a starch selected from the group consisting of corn starch, wheat starch, rye starch, oat starch, barley starch, potato starch, tapioca starch and pea starch, each being native starch or chemically modified starch, or any mixture thereof and (ii) a main paste with a total starch content of 25 to 50 wt % composed of a mixture of 10 to 30 wt % native rice starch or an acetylated version thereof having an amylose content of 12 to 20 wt %, 1 wt % other compounds and a complementary amylopectin content of 87 to 79 wt %, and 90 to 70 wt % of a starch or mixture of starches selected from the above defined group. Processes for the manufacture of the novel glue paste compositions based on the Stein-Hall method are disclosed, as well as a premix of starches for said manufacture. The glue paste compositions present excellent film forming and glueing properties and are particularly suitable for the manufacture of laminated corrugated board.
REFERENCES:
patent: 5641349 (1997-06-01), Koubek et al.
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patent: 9-235529 (1997-09-01), None
patent: 2001 164213 (2001-06-01), None
Kuhl, Hugo: “Methods for increasing the adhesiveness of starch paste” Chemical Abstracts, vol. 36, No. 21, Nov. 10, 1942, Columbus, Ohio, u.S.A. (Abstract No. 6836).
Brunsman David
Hayes & Soloway P.C.
Remy Industries N.V.
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