Patent classifications
B29K2995/0062
Water-decomposable thermoset resin formulations, and water-decomposable thermoset polymers made therefrom
Some variations provide a curable resin formulation for a water-decomposable thermoset material, comprising: first molecules containing a boron-oxygen-silicon group and a first functional group that is reactive for free-radical, cationic, and/or hydrosilylation polymerization; optionally second molecules containing at least one second functional group that is reactive with the first molecules; and a polymerization initiator. Other variations provide a curable resin formulation comprising: first molecules containing a polyester group and a first functional group that is reactive for free-radical, cationic, and/or hydrosilylation polymerization; optionally second molecules containing at least one second functional group that is reactive with the first molecules; and a polymerization initiator. Other variations provide a cured, water-decomposable thermoset solid material comprising boron-oxygen-silicon groups and/or polyester groups, wherein the material is characterized by at least 50 wt % decomposition in water with a pH of 7, for 60 minutes, at a temperature of 100 C.
MOLDED ARTICLE, CONTAINER AND A METHOD FOR PRINTING THEREON
Disclosed herein, amongst other things, is a container having a printing layer that is printable with exposure to laser light of selected properties.
METHOD OF MANUFACTURING A CARBON FIBER WHEEL RIM
A method of manufacturing a carbon fiber wheel rim is provided, including flowing steps of: preparing a core ring, including a core material which is disintegrable and annular; continuously obliquely winding at least one first dry carbon yarn around the core ring, to form a first semifinished rim; placing the first semifinished rim in a mold, and performing vacuuming, resin injection and thermoforming, to form a second semifinished rim; removing the second semifinished rim out of the mold, and disintegrating and removing the core material.
Method of producing a phantom and phantom
The present invention relates to a method of producing a phantom resembling a human or animal organ or tissue, the phantom comprising at least one first region having at least one tissue like property and at least one cavity having a plurality of hollow branches connected thereto, with at least some of the plurality of hollow branches being formed such that they project into the first region having tissue like properties. The invention further relates to a method of making the first structure and to a corresponding phantom.
USE OF POLYHYDROXY COMPOUND AS PLASTICIZER FOR POLYVINYL ALCOHOL IN 3D PRINTING PROCESS
The invention is directed to a process of manufacturing a three-dimensional object byproviding a support structure comprising polyvinyl alcohol (PVOH) todepositing and solidifying a molten thermoplastic polymer on the support structure to form a three-dimensional preform characterized in that the support structure consists of a mixture of polyvinyl alcohol (PVOH) and at most 20% by weight of at least one plasticizer according to formula (I), (II) or (III): R1-C(CH.sub.2OH).sub.3 (1); [R1-C(CH.sub.2OH).sub.2CH.sub.2].sub.2O (11); (R1)C(CH.sub.2OH).sub.2CH.sub.2OCH.sub.2C(CH.sub.2OH)C(R1)CH.sub.2OCH.sub.2 C(CH.sub.2OH)2R1 (III). With R1=H, CH3, C.sub.2H.sub.5, C.sub.3H.sub.7, CH.sub.2OH. The support structure can be dissolved to from the three-dimensional object.
WATER DISPERSIBLE POLYMER FOR USE IN ADDITIVE MANUFACTURING
A water dispersible sulfo-polyamide is configured as a filament for use as an extrudable support material in the additive manufacture of a part comprising a non water dispersible polymer. The water dispersible sulfo-polyamide is a reaction product of a sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer.
Ophthalmic device molds and related methods
Ophthalmic device molds made from a first portion of a molding surface formed from a first polymer and a second portion of the molding surface formed from a second polymer are described. When combined, the first portion and the second portion of the molding surface form an entire molding surface suitable for molding an entire surface, such as an anterior surface or a posterior surface of an ophthalmic device. Methods of manufacturing ophthalmic devices using these molds, including contact lenses, are also described.
Water dispersible sulfonated thermoplastic copolymer for use in additive manufacturing
A sulfonated water-dispersible thermoplastic copolymer material for use as a support material in an additive manufacturing process is made by a method comprising providing a selected thermoplastic copolymer having an acid or an anhydride group; esterifying the acid group of the selected thermoplastic copolymer with a hydroxyl-functionalized sulfonate salt, or amidizing the acid group of the selected thermoplastic copolymer with an amine sulfonate salt, or imidizing the anhydride group of the selected thermoplastic copolymer with an amine sulfonate salt. The esterification, the amidization or the imidization results in a sulfonated water thermoplastic dispersible copolymer having a glass transition temperature suitable to provide an effective support during the additive manufacturing process and wherein the sulfonated water-dispersible thermoplastic copolymer will disperse in tap water in less than 1 hour.
Method for producing a portion unit of a detergent
A method for producing a portion unit of a detergent by inserting a base element made from a first film portion into a deep-drawing mold that forms a holding volume from the first film portion, the holding volume having a plurality of chambers spaced apart from one another; pouring at least one detergent composition into the chambers; placing a cover element made from a second film portion onto the filled chambers; connecting the cover element to the base element, which forms a film wrapping, sealing seams being formed between adjacent wall portions of the chambers; removing the portion unit from the deep-drawing mold, wherein the outside of the film wrapping is then wetted at least in the region of the adjacent wall portions and, by pressure being exerted, the sealing seams are compressed and the adjacent wall portions are brought into contact with one another and interconnected.
Method for manufacturing a three-dimensional object
The invention pertains to a method for manufacturing a three-dimensional object with an additive manufacturing system, such as an extrusion-based additive manufacturing system, a selective laser sintering system, and/or an electrophotography-based additive manufacturing system, comprising providing a support material comprising more than 50% wt. of a semi-crystalline polyamide [polyamide (A)] having a melting point, as determined according to ASTM D3418, of at least 250 C. and possessing a water absorption at saturation, by immersion in water at 23 C., of at least 2% wt.