A water soluble polymer composition includes a water soluble polymer and a sugar and may be used as a support in additive manufacturing processes.

A method of manufacturing a composite material that is formed to include an aperture is provided. The method includes disposing a plurality of woven substances including reinforcement fibers on a jig having a protrusion to fit the woven substances on the protrusion and thus provide the aperture. Additionally, the method includes integrally mounting the jig and a plurality of the woven substances in a mold, and adding a resin to the mold to immerse the plurality of the woven substances with the resin.

A method of forming dual layer water soluble packets includes drawing a base film into a cavity of a mold, drawing air through openings in the base film, metering an amount of a first product of a first color onto the base film in the cavity, metering an amount of a second product of a second color onto the amount of the first product, and, sealing a lid film to the base film.

An apparatus and method for embossing a substrate are disclosed. For example, the apparatus includes an embossing platform, a printhead to dispense ink on the embossing platform in a desired raised pattern on the embossing platform, a press to apply a load against a substrate placed on the desired raised pattern and the embossing platform to emboss the desired raised pattern onto the substrate, and an ink removal device to remove the ink that is dispensed on the embossing platform in the desired raised pattern.

A process for manufacturing a water soluble product including the steps of: providing a water soluble fibrous first ply; providing a water soluble fibrous second ply formed on a surface other than the first ply, wherein the second ply is separate from the first ply; superposing the first ply and the second ply; and joining a first portion of the first ply to a second portion of the second ply to form the water soluble product.

Described herein are acyl germanium photoinitiator for cost-effective and time-efficient method for producing UV-absorbing contact lenses capable of blocking ultra-violet (UV) radiation and optionally (but preferably) violet radiation with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV radiation and potentially from violet radiation. This invention also provides a method for making UV-absorbing contact lenses made by using an acyl germanium photoinitiator of the invention.

Described herein is an oral care implement comprising a handle, and a head having a main body that is coupled to the handle, the head comprising a release component coupled to the main body, the release component comprising a water-dissolvable matrix comprising a first polymer having a processing temperature greater than or equal to 150? C., and a plurality of tooth cleaning elements.

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.

A zipper assembly is provided that can include an elongated base that may be coupled with a panel of an enclosure, and interlocking elements protruding from the base that can alternate between a mated state while coupled with other interlocking elements of another base and an unmated state while separated from the other interlocking elements of the other base to alternately close and open the enclosure. One or more of the base or the interlocking elements may include a core and at least a partial outer layer. The core can be formed from a core material having a higher water solubility than an outer material from which the outer layer is formed.

A method of forming dual layer water soluble packets includes drawing a base film into a cavity of a mold, drawing air through openings in the base film, metering an amount of a first product of a first color onto the base film in the cavity, metering an amount of a second product of a second color onto the amount of the first product, and, sealing a lid film to the base film.