Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carbohydrate or derivative as a reactant
Patent
1981-05-01
1983-03-15
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carbohydrate or derivative as a reactant
525 5423, 525 543, 527103, 527312, 527313, 527400, 524 27, 524 13, C08F25102
Patent
active
043768520
ABSTRACT:
A process is provided for preparing a graft polymermodified cellulose pulp filler from cellulose sulfite pulp having an R.sub.18 value greater than 80%, which comprises adding to the pulp a redox initiator; washing the pulp with water having a pH below 5 in an amount sufficient to adjust the redox initiator cation content to within the range from about 5 to about 1000 ppm of cellulose sulfite pulp; adding hydrogen peroxide in an amount to provide within the range from about 0.1% to about 4% H.sub.2 O.sub.2 by weight of the sulfite pulp; and then reacting the pulp with at least one monomer having the formula: ##STR1## in which: R.sub.1 is hydrogen or methyl; and
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Kight III John
Mooch Domsjo Aktiebolag
Nutter Nathan M.
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