Abstract:
The present invention relates to biobased binder compositions which are environmentally benign, renewable, compostable and/or biodegradable. The biobased compositions comprise chitosan, an acid and a plasticizer. By treating an airlaid nonwoven material with a biobased binder according to the present invention, it is possible to provide an airlaid nonwoven material exhibiting higher elongation, i.e., elongation at break, and strength compared to an airlaid nonwoven material treated with previously available biobased binders.
Abstract:
A large lightweight molded coffin comprises a large pulp molded outer shell lined with a reinforcing spacer material such as single faced Re-board®, a honeycomb structure or a molded spacer material conforming to and adhering to said shell and an inner shell made of molded pulp or a paper based material. A method for manufacturing such a lightweight coffin involves pressing slurried pulp between a first male mold half covered with elastomeric material and a second female mold half, to form the molded pulp shell, and gluing the reinforcing spacer material to the interior of said outer molded pulp shell and the inner shell.
Abstract:
Press for making large molded pulp objects, which has a raisable and lowerable male mold half, perforated for suction dewatering after dipping into a pulp slurry. The molding surface of said male mold half is coated with an elastomer to preserve even surface contact with the molded pulp object during compression and during thermal expansion or contraction of said mold halves. Advantageous embodiments include vacuum distribution troughs beneath the elastomer layer in the male mold half, multiple wire mesh layers on top of the perforated elastomer layer, and slight lateral adjustability of the otherwise stationary female mold half.
Abstract:
A large lightweight molded coffin comprises a large pulp molded outer shell lined with a reinforcing spacer material such as single faced Re-board®, a honeycomb structure or a molded spacer material conforming to and adhering to said shell and an inner shell made of molded pulp or a paper based material. A method for manufacturing such a lightweight coffin involves pressing slurried pulp between a first male mold half covered with elastomeric material and a second female mold half, to form the molded pulp shell, and gluing the reinforcing spacer material to the interior of said outer molded pulp shell and the inner shell.
Abstract:
An aqueous polyelectrolyte (PEC) composition for application to a fibre based material for use in obtaining a barrier coating resistant to oil and water, comprises from 0.1 to 20% (w/w) of carboxymethyl cellulose (CMC) and from 0.1 to 20% of cationic starch (CS), providing PECs with a charge ratio of ≤1; from 1 to 20% (w/w) of a plasticizer; and from 1 to 15% (w/w) of a pH adjusting agent selected from an acid, a buffering system and a base.
Abstract:
The present invention relates generally to compositions comprising polyelectrolytes complexes (PECs) of anionic and cationic biopolymers capable of forming barriers on fiber based materials. Also disclosed is a fibre based material with a barrier coating against oil and water, wherein the material is provided with a barrier from at least two layers formed from at least one composition comprising a polyelectrolyte complex (PEC) of a cationic biopolymer and an anionic biopolymer, The two layers result in improvements in both oil resistance and water resistance compared to the same material provided with a single layer of said at least one composition.
Abstract:
The present invention relates generally to biocomposite materials made of cellulose and wheat bran and/or oat husk, prepared by methods comprising mixing the husk or bran with an aqueous alkaline solution, stirring and/or homogenizing the mixture, admixing with cellulose pulp and thermoforming the material under conditions admitting curing, thereby obtaining improvements in strength measured as at least one of strain at peak (%), stress at peak (%) and Young's modulus (MPa).
Abstract:
The present invention relates to an improved emulsified composition comprising a) —one or more amino functional siloxanes of the formula I b) —one or more hydrolysable alkyl silans of the formula II c) an acid d) water e) a defoamer f) a coalescent agent and optionally one or more of a preservative, co-emulsifier, catalyst, rheology modifier, fatty acid, oil and/or wax, the process of preparing it and the application method of enhancing the water repellence of an inorganic, organic or fiber based materials and/or enhancing the said materials ability to repel water soluble dirt, as well as an apparatus for use in said method.
Abstract:
Press for making large molded pulp objects, which has a raisable and lowerable male mold half, perforated for suction dewatering after dipping into a pulp slurry. The molding surface of said male mold half is coated with an elastomer to preserve even surface contact with the molded pulp object during compression and during thermal expansion or contraction of said mold halves. Advantageous embodiments include vacuum distribution troughs beneath the elastomer layer in the male mold half, multiple wire mesh layers on top of the perforated elastomer layer, and slight lateral adjustability of the otherwise stationary female mold half.
Abstract:
An application method of enhancing the water repellence of a textile and/or enhancing a textiles ability to repel water soluble dirt, includes the steps of: a) applying an emulsified liquid composition on a textile, wherein said emulsified liquid composition includes only water, alkylalkoxysilane with said alkyl chain having a length of 10-30 carbons or carbon atoms higher than 12 but equal to or less than 18, at least one emulsifier, surfactant, thickener and/or stabilizer, a water soluble acid catalyst, and unavoidable impurities; b) optionally adding to the composition amino silicones for softness and durability enhancement of the water repellency; c) optionally adjusting the amount of the composition applied on textile; d) drying the treated textile until dry; e) curing the treated textile at a temperature of between 100-200° C.; and f) optionally removing the non-reacted composition residue from the treated textile by washing with water and optionally redrying the treated textile.