Film-forming size composition

Details Film-forming size composition Film-forming size composition

1989-05-24

1992-01-07

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

8561, 536114, 536123, 162175, 162176, 162177, 162178, 106205, 106208, 106209, 106210, 106170, 1061972, 106162, C08L 504, A23L 104

Patent

active

050793489

ABSTRACT:
A film forming composition useful as a paper size is described which includes 1-20 parts, preferably 2-15 parts, by weight of a gum selected from the group consisting of xanthan gum, rhamsan gum, welan gum and mixtures thereof; 3-20 parts, preferably 5-17 parts, by weight of a water soluble alginate; and 60-100 parts, preferably 70-90 parts, by weight of starch, polyvinyl alcohol or carboxymethylcellulose, with the gum:alginate ratio being not greater than 1:1, preferably not greater than 1:2. The balance of the composition will primarily be water. Additives such as sodium hexametaphosphate may also be present.

REFERENCES:
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patent: 4257816 (1981-03-01), Yin et al.
patent: 4363669 (1982-12-01), Cottrell et al.
patent: 4693728 (1987-09-01), Clare et al.
patent: 4792415 (1988-12-01), Colegrove
patent: 4859208 (1989-08-01), Clare et al.
patent: 4894250 (1990-01-01), Musson et al.
patent: 4911946 (1990-03-01), Singer et al.
patent: 4952686 (1990-08-01), Renn et al.
patent: 4979989 (1990-12-01), Ridoux

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