The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

The present disclosure relates to reinforcing photopolymer resins and uses thereof, e.g., in inkjet 3D printing.

A cellulose fiber dispersion polyethylene resin composite material formed by dispersing a cellulose fiber into a polyethylene resin, in which a proportion of the above-described cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and the polyethylene resin satisfies a relationship: 1.7>half-width (Log(MH/ML))>1.0 in a molecular weight pattern obtained by gel permeation chromatography measurement, and a formed body and a pellet using the same, a production method therefor, and a recycling method for the cellulose fiber adhesion polyethylene thin film piece.

A cellulose fiber dispersion polyethylene resin composite material formed by dispersing a cellulose fiber into a polyethylene resin, in which a proportion of the above-described cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and the polyethylene resin satisfies a relationship: 1.7>half-width (Log(MH/ML))>1.0 in a molecular weight pattern obtained by gel permeation chromatography measurement, and a formed body and a pellet using the same, a production method therefor, and a recycling method for the cellulose fiber adhesion polyethylene thin film piece.

Reinforcing photopolymer resins for inkjet 3D printing. In one embodiment, a polymeric reinforcing agent is at least partially dissolved into a UV-curable matrix material. Upon polymerization of the matrix material, the reinforcing agent undergoes a decrease in solubility and precipitates from solution. The reinforcing agent agglomerates, forming phase-separated domains that strengthen the photopolymer matrix, resulting in increased tensile strength and toughness. In another aspect, the invention relates to a reinforced composition for 3D ink printing comprising: a UV-curable matrix material and a reinforcing agent at least partially soluble in the UV-curable matrix material. In an embodiment, the UV-curable matrix material is selected from the group consisting of: acrylates, thiol-enes and combinations thereof. In an embodiment, the reinforcing agent is selected according to the properties of the UV-curable matrix material. In an embodiment, the reinforcing agent has a higher glass transition temperature (Tg) than the UV-curable matrix material. In an embodiment, the reinforcing agent is non-UV-curable. In an embodiment, the reinforcing agent is non-reactive with UV-curable matrix material. In an embodiment, the tensile strength of the cured reinforced composition is 30-300% higher than the UV-curable matrix material without reinforcing agent. In an embodiment, the tensile strength of the cured reinforced composition depends upon the loading of the reinforcing agent within the reinforced composition. In an embodiment, the content of reinforcing agent is less than 20 wt % in the overall formulation. In an embodiment, the reinforcing agent is a Polyvinylpyrrolidone or a poly(methyl methacrylate).

The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

The present invention relates to a powder coating formulation, comprising at least one partially crystalline thermoplastic unsaturated polyester (A), at least one thermoplastic allyl prepolymer (B) which is copolymerizable with said polyester, and a thermal initiation system (C), including at least one thermal initiator, wherein the allyl prepolymer (B) has a weight average molar mass greater than 5000 g/mol, preferably greater than 10000 g/mol, and particularly preferably greater than 20000 g/mol, and/or has a viscosity of 30 mPas to 200 mPas, preferably of between 40 mPas and 170 mPas, particularly preferably of between 50 mPas and 150 mPas, and wherein the unsaturated polyester (A) has a melting point of between 90 and 120 C., preferably of 90-110 C., particularly preferably of 90-105 C., and still more preferably of 90-100 C.

The present invention provides a cover film having excellent storage stability. The cover film of the present invention includes a cellulose acetate support and a polymer layer containing a polymer, in which the support contains an additive A other than cellulose acetate, and in a case where the support contains one kind of the additive A, a molecular weight of the one kind of the additive A is 500 or more, and in a case where the support contains two or more kinds of the additives A, an average molecular weight of the two or more kinds of the additives A is 500 or more.

The present invention provides a cover film having excellent storage stability. The cover film of the present invention includes a cellulose acetate support and a polymer layer containing a polymer, in which the support contains an additive A other than cellulose acetate, and in a case where the support contains one kind of the additive A, a molecular weight of the one kind of the additive A is 500 or more, and in a case where the support contains two or more kinds of the additives A, an average molecular weight of the two or more kinds of the additives A is 500 or more.