Binder composition with low formaldehyde emission and process for its preparation
AssigneeBorden, Inc.
InventorSubhankar Mukherjee
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Abstract
Binder for the production of particle board and plywood with low formaldehyde emission which comprises a polymer formed fron an acidified starch hydrolyzate, urea and formaldehyde. Process for preparation of the polymer and for its use for production of particle board and plywood are also disclosed.
Claims12
A binder for use in production of particle board and plywood with low formaldehyde emission which consists essentially of a polymer formed by the reaction of an acidified starch hydrolyzate, urea and formaldehyde, wherein the starch hydrolyzate comprises from about 3% to about 40% by weight of the polymer on a dry solids basis and wherein the molar ratio of urea to formaldehyde in the polymer is from about 1:1 to about 1:1.5.
Dependencies are inferred from the claim text.