STARCH AND CARBOXYLIC ACID BINDER COMPOSITIONS AND ARTICLES MADE THEREWITH

    公开(公告)号:EP3584230A1

    公开(公告)日:2019-12-25

    申请号:EP19180596.9

    申请日:2019-06-17

    申请人: Johns Manville

    摘要: Fiber-containing composites are described that include woven or nonwoven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1 x 10 6 Daltons to 10 x 10 6 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1 x 10 6 Daltons to 10 x 10 6 Daltons, and a polycarboxylic acid.