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Application filed by Cpc International IncfiledCriticalCpc International Inc
Publication of MX9709510ApublicationCriticalpatent/MX9709510A/en
Publication of MXPA97009510ApublicationCriticalpatent/MXPA97009510A/en
A wet end additive composition which is used as a sizing agent in a papermaking process, the composition comprising a two phase suspension of swollen starch having a dry substance from about 0.5 to about 30 percent by weight, a cooked swollen volume from about 1.6 ml./gram to about 100 ml./gram and cooked solubles from about 0.5 percent to about 50 percent by weight. The composition is preparated starching with a starch slurry having a relatively low concentration (dry substance) of starch. The slurry is subjected to carefully controlled swelling conditions (temperature and pH) which can vary depending upon the type of starch employed. The dry substance of the slurry also may vary depending upon whether a continuous or batch process is employed. The composition is used in a papermaking process by adding it to the furnish after the refining stage.
MXPA/A/1997/009510A1995-06-231997-12-04Blown starches as pa manufacturing additives
MXPA97009510A
(en)