Fiber-containing composites are described that include woven or non-woven 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?10.sup.6 Daltons to 10?10.sup.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?10.sup.6 Daltons to 10?10.sup.6 Daltons, and a polycarboxylic acid.

Fiber-containing composites are described that include woven or non-woven 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?10.sup.6 Daltons to 10?10.sup.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?10.sup.6 Daltons to 10?10.sup.6 Daltons, and a polycarboxylic acid.

To provide an adhesive composition that can ensure a desired adhesion property without using resorcin and that does not impair workability during use, as well as a resin material, a rubber article, an organic fiber-rubber composite, and a tire using the adhesive composition. Provided is an adhesive composition containing (A) a rubber latex with unsaturated diene and (B) polylysine. Also provided are a resin material, a rubber article, an organic fiber-rubber composite, and a tire using this adhesive composition.

The invention provides protein adhesives containing certain additives and methods of making and using such adhesives. The protein adhesives contain ground plant meal or an isolated polypeptide composition obtained from plant biomass in combination with certain additives, such as an exfoliated clay or partially exfoliated clay.

The invention provides protein adhesives containing certain additives and methods of making and using such adhesives. The protein adhesives contain ground plant meal or an isolated polypeptide composition obtained from plant biomass in combination with certain additives, such as an exfoliated clay or partially exfoliated clay.

A method for producing a seed powder-polycarboxylic acid monoester wood adhesive using a bio-based feedstock includes: generating a functionalized powder feedstock by moderate degradation of the powder feedstock with appropriate water content in the existence of a multifunctional catalyst and simultaneous esterification with a cyclic anhydride to introduce a curable functional group; and mixing the separated functionalized powder with water and adding a curing additive to form a thermo-curable wood adhesive. Double-layer plywood samples were prepared according to ASTM International Standard 2017, D2339-98 and solidified for 3-10 min under 3 MPa pressure in a hot press at temperatures between 150-200? C. The double-layer plywood samples showed dry and wet strengths of up to 3.5 MPa and a wood failure rate of more than 80%.

Fiber-containing composites are described that include woven or non-woven 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?10.sup.6 Daltons to 10?10.sup.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?10.sup.6 Daltons to 10?10.sup.6 Daltons, and a polycarboxylic acid.

Fiber-containing composites are described that include woven or non-woven 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?10.sup.6 Daltons to 10?10.sup.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?10.sup.6 Daltons to 10?10.sup.6 Daltons, and a polycarboxylic acid.

In some embodiments, a formliner comprises a body comprising a defining a plurality of cavities arranged in a repeating pattern. A sealant is provided in each cavity. The sealant comprises a gel mixture of wax and vegetable oil. In some embodiments, the wax comprises carnauba wax and/or beeswax.

The present invention is related to a new method to produce natural water-based glues made of two components, designed to glue lignocellulosic surfaces, mainly cork and wood. The mentioned process comprises the extraction of the aqueous phase of a mixture resulting from liquefying cork dust and/or cork granules, process that is commonly referred to as depolimerization process of cork; evaporation of the aqueous phase, therefore obtaining a first component consisting of a gel composed by the soluble components of the liquefying mixture; mixing and homogenizing of this gel with the second component that consists of a curing aliphatic compound; and, optionally, addition and mixture to cork dust to the previously mentioned mix.