UREA-FORMALDEHYDE RESIN BINDERS CONTAINING STYRENE-ACRYL OR STYRENE-MALEIC ANHYDRIDE-ACRYLIC COPOLYMERS

摘要

An aqueous binder composition containing a urea-formaldehyde resin modified with an additive comprising (1) styrene acrylic acid or styrene acrylate, (2) an adduct of styrene, maleic anhydride, and an acrylic acid or acrylate or (3) a physical mixture of a styrene acrylic acid or styrene-acrylate copolymer and a styrene-maleic anhydride copolymer. The resulting binder is used in the preparation of fiber mats.