D21H17/35

IMPROVED PULP DISPOSABLE TRAY
20200181849 · 2020-06-11 ·

The present invention solves the above mentioned technical problems by providing a three dimensional molded shape suitable for use in the fabrication of a food tray, the molded shape comprising a molded pulp portion with side walls and a bottom wall comprising virgin or recycled cellulose fibers and a film laminate portion comprising a polyester film with an amorphous polyester heat seal layer.

Composition and method for producing pre-impregnated decorative base paper comprising biopolymer nanoparticles

A pre-impregnated decorative base paper for decorative coating materials, comprising biopolymer nanoparticles.

Composition and method for producing pre-impregnated decorative base paper comprising biopolymer nanoparticles

A pre-impregnated decorative base paper for decorative coating materials, comprising biopolymer nanoparticles.

OYSTER PAPER AND MANUFACTURING METHOD THEREOF
20200024411 · 2020-01-23 ·

An oyster paper and a manufacturing method thereof are provided. The oyster paper is made of 60%-70% oyster shell powder, 10%-20% polymer, 15%-17% natural biodegradation inducing agent, and 3%-5% natural biodegradation assisting additive agent, by volume ratio, which are subjected to mixing and pre-melting processing, followed by compounding and pelletizing to prepare oyster paper pellets, which are then subjected to film blowing processing to be film-blown into an oyster paper product having a thickness of 0.05-0.5 millimeters. The oyster paper possesses the quality of wood pulp paper and shows bettered stiffness and wider applications. The oyster paper also provides, after being disposed and buried, an effect of being 100% natural degradation into compost for fertilizing the soil. As such, a kind of oyster paper featuring recycling and reuse of oceanic creature waste shell and natural microorganism induced degradation for composting and recycling and a manufacturing method thereof are provided.

Water-dispersible composite structure and method of producing the same

A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.

Water-dispersible composite structure and method of producing the same

A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.

Production of high performance thermoplastic composites

The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibers and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression molding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.

Production of high performance thermoplastic composites

The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibers and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression molding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.

LATEX COMPOSITION
20190300685 · 2019-10-03 · ·

A latex composition containing a conjugated diene polymer latex and a medium-chain fatty acid glyceride, wherein a content proportion of the medium-chain fatty acid glyceride is 1 to 40 parts by weight with respect to 100 parts by weight of the conjugated diene polymer. In the present invention, a medium-chain fatty acid forming the medium-chain fatty acid glyceride is preferably a fatty acid having 6 to 18 carbon atoms. In the present invention, the medium-chain fatty acid glyceride is preferably a medium-chain fatty acid triglyceride. The latex composition preferably further contains a crosslinking agent.

Paper composition and process for making the same

A new paper composition comprising, a) from 15 wt. % to 70 wt. % a hiding composite comprising based on the total weight of the hiding composite, from 30 wt. % to 75 wt. % pigment particles and from 25 wt. % to 70 wt. % a thermoplastic polymer. The pigment particles are hydrophobically treated with the surface tension of the pigment particles being from 0.1 to 50 mN/m, and the surface tension difference between the pigment particles and the thermoplastic polymer being less than 40 mN/m; and b) from 30 wt. % to 85 wt. % a paper pulp. Process of making such a new paper composition.