Resole resin binder composition
AssigneeMonsanto Company
InventorRonald H. Dahms
Life of this patent
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Abstract
The invention relates to a binder composition comprising a low molecular weight resole resin in combination with boron compounds wherein said boron compounds are present in from about 1 to 30 parts per 100 parts by resole resin solids, said composition having a pH of about 2-6 and said resole having a viscosity of from about 5 to 5000 cps. Said binder provides laminates having superior electrical and flame retardant properties.
Claims10
A non-corrosive binder composition comprising a low molecular weight resole resin and a boron compound curing accelerator, selected from the group consisting of boric acid, diammonium tetraborate, diammonium octaborate, diammonium pentaborate and mixtures thereof, said boron compound being present in from about 1 to 30 parts by weight per 100 parts of resole resin solids, said composition having a pH of about 7-10 by the addition of sufficient ammonium hydroxide to raise the pH to about 7-10 and said resole resin having a viscosity of 5 to 5000 cps.
Dependencies are inferred from the claim text.