A method for preparing unbleached biomechanical pulp from straw. A straw is used as a raw material, which is treated with alkaline biological enzymes, heated with hot alkali steam, refined, and washed. The mechanical pulp prepared by the method of the present invention has significantly improved ring-crush strength, can be used to prepare corrugated paper or cardboard paper, and can significantly improve the compressive strength of the carton.

A method for preparing unbleached biomechanical pulp from straw. A straw is used as a raw material, which is treated with alkaline biological enzymes, heated with hot alkali steam, refined, and washed. The mechanical pulp prepared by the method of the present invention has significantly improved ring-crush strength, can be used to prepare corrugated paper or cardboard paper, and can significantly improve the compressive strength of the carton.

The present invention relates to a method of preparing grafted copolymers of lignin and/or cellulose, comprising the generation of macroradicals in situ by mechanical impact on the backbone of said lignin and/or cellulose of said lignin and/or cellulose containing material and grafting monomers and/or polymers to said backbone. Furthermore, the present invention relates to the grafted copolymers obtainable by said method, composite materials comprising said copolymers as well as to uses thereof.

The present invention relates to a method of preparing grafted copolymers of lignin and/or cellulose, comprising the generation of macroradicals in situ by mechanical impact on the backbone of said lignin and/or cellulose of said lignin and/or cellulose containing material and grafting monomers and/or polymers to said backbone. Furthermore, the present invention relates to the grafted copolymers obtainable by said method, composite materials comprising said copolymers as well as to uses thereof.

Methods and apparatus for fabricating a molded fiber part are described. A system for forming a molded fiber container includes a first plate configured to receive a molded fiber part having a moisture content, and a second plate configured to compress the part against the first plate, wherein at least one of the first and second plates includes a die cutting blade.

Methods and apparatus for fabricating a molded fiber part are described. A system for forming a molded fiber container includes a first plate configured to receive a molded fiber part having a moisture content, and a second plate configured to compress the part against the first plate, wherein at least one of the first and second plates includes a die cutting blade.

A method of increasing the throughput and/or decreasing the energy usage of a pulping process includes the steps of providing a plurality of lignocellulosic chips, providing a refining composition, applying the refining composition to the plurality of lignocellulosic chips, and mechanically refining the plurality of lignocellulosic chips to form pulp. The refining composition includes water and a lubricating additive including the reaction product of a sugar and an alcohol. The step of applying the refining composition to the lignocellulosic chips is conducted less than 5 minutes prior to, or concurrently with, the step of mechanically refining the wood chips to form pulp.

A method of producing conifer-derived pulp fibers for paper includes a beating step of beating conifer-derived material pulp fibers in the presence of a liquid including water; and an ozone treatment step of treating, with ozone water, the beaten conifer-derived material pulp fibers.

A method of producing conifer-derived pulp fibers for paper includes a beating step of beating conifer-derived material pulp fibers in the presence of a liquid including water; and an ozone treatment step of treating, with ozone water, the beaten conifer-derived material pulp fibers.

The present invention relates to an additive or additive composition for improved production of fermentable sugars from lignocellulosic biomass during enzymatic hydrolysis. More particularly, the present invention discloses petrochemical waste as an additive or an additive composition containing one or more ethylene glycol oligomers and one or more metal ions which are useful for improved production of fermentable sugars from lignocellulosic biomass during enzymatic hydrolysis.