A61L15/62

THERMOPLASTIC INJECTION MOLDED AND FLUSHABLE MATERIAL

A water-dispersible injection-moldable composition includes a water-dispersible polymer, polyethylene glycol (PEG), plasticizer, and a hydrophobic polymeric component, wherein the composition has a melt flow index of 5-180. The water-dispersible polymer can be partially-hydrolyzed polyvinyl alcohol (PVOH) or ethylene-vinyl alcohol copolymer. The hydrophobic polymeric component can be a colorant within an ethylene matrix, polyethylene, a degradation product of glycerin/PVOH, erucamide, or poly(dimethyl siloxane). The plasticizer can be glycerin. The composition is flushable according to Guidance Document for Assessing the Flushability of Nonwoven Consumer Products (INDA and EDANA, 2006); Test FG 522.2 Tier 2Slosh Box Disintegration Test.

THERMOPLASTIC INJECTION MOLDED AND FLUSHABLE MATERIAL

A water-dispersible injection-moldable composition includes a water-dispersible polymer, polyethylene glycol (PEG), plasticizer, and a hydrophobic polymeric component, wherein the composition has a melt flow index of 5-180. The water-dispersible polymer can be partially-hydrolyzed polyvinyl alcohol (PVOH) or ethylene-vinyl alcohol copolymer. The hydrophobic polymeric component can be a colorant within an ethylene matrix, polyethylene, a degradation product of glycerin/PVOH, erucamide, or poly(dimethyl siloxane). The plasticizer can be glycerin. The composition is flushable according to Guidance Document for Assessing the Flushability of Nonwoven Consumer Products (INDA and EDANA, 2006); Test FG 522.2 Tier 2Slosh Box Disintegration Test.

RECYCLE FRIENDLY AND SUSTAINABLE ABSORBENT ARTICLES
20190192723 · 2019-06-27 ·

An absorbent article comprising a topsheet, a backsheet joined to the topsheet, and an absorbent core positioned intermediate the topsheet and the backsheet and comprising a core absorbent material, in which the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B and the absorbent article comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material.

Dissolvable gel-forming film for delivery of active agents

Disclosed is a dissolvable, gel-forming film, and methods for its use, comprising a water-soluble cellulose ether, a hydrophilic rheological modifying agent, and an active proteolytic enzyme or other drug substance. The gel-forming film has a water content of less than 15% w/w and is capable of forming a hydrogel when contacted with water or other aqueous medium. The disclosed films achieve delivery of stable proteolytic enzymes to the desired site of action in a manner that provides uniform delivery of the enzymes.

Dissolvable gel-forming film for delivery of active agents

Disclosed is a dissolvable, gel-forming film, and methods for its use, comprising a water-soluble cellulose ether, a hydrophilic rheological modifying agent, and an active proteolytic enzyme or other drug substance. The gel-forming film has a water content of less than 15% w/w and is capable of forming a hydrogel when contacted with water or other aqueous medium. The disclosed films achieve delivery of stable proteolytic enzymes to the desired site of action in a manner that provides uniform delivery of the enzymes.

Enzyme Degradable System for Undergarments and Feminine Hygiene Articles
20190111176 · 2019-04-18 ·

An enzyme-degradable system for undergarments and feminine hygiene articles works to decompose the undergarments and feminine hygiene articles upon being triggered by bodily fluids, such as urine. The undergarment or feminine hygiene article comprises an absorbent core, an inner sheet of biodegradable material, and an outer sheet of biodegradable material. The core includes at least one of the following: a cellulose material, a wood pulp, a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources (polylactic acid plasticPLA), and a superabsorbent polymer (SAP). The inner and outer sheets comprise a plant based cellulosic nonwoven material. The cellulose enzyme decomposes the absorbent core, the inner sheet, and the outer sheet upon contact with a bodily fluid. The cellulose enzyme may include DIS-1018 Cellulose-AN, a pH buffer, and additives. Fasteners made from a resilient, biodegradable material help secure the undergarments and feminine hygiene articles to the body.

Enzyme Degradable System for Undergarments and Feminine Hygiene Articles
20190111176 · 2019-04-18 ·

An enzyme-degradable system for undergarments and feminine hygiene articles works to decompose the undergarments and feminine hygiene articles upon being triggered by bodily fluids, such as urine. The undergarment or feminine hygiene article comprises an absorbent core, an inner sheet of biodegradable material, and an outer sheet of biodegradable material. The core includes at least one of the following: a cellulose material, a wood pulp, a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources (polylactic acid plasticPLA), and a superabsorbent polymer (SAP). The inner and outer sheets comprise a plant based cellulosic nonwoven material. The cellulose enzyme decomposes the absorbent core, the inner sheet, and the outer sheet upon contact with a bodily fluid. The cellulose enzyme may include DIS-1018 Cellulose-AN, a pH buffer, and additives. Fasteners made from a resilient, biodegradable material help secure the undergarments and feminine hygiene articles to the body.

Microcrystal exfoliation by UV light irradiation

A method is described for exfoliating a microcrystal of an anthracene derivative by irradiation with short pulses of light having a wavelength of 220-420 nm. The irradiation induces a cis-trans isomerization of the anthracene derivative in a part of the microcrystal, which leads to the separation of an outer layer having a thickness of 200-600 nm. The exfoliated microcrystal may be irradiated again with pulses of light of a same or different wavelength.

Microcrystal exfoliation by UV light irradiation

A method is described for exfoliating a microcrystal of an anthracene derivative by irradiation with short pulses of light having a wavelength of 220-420 nm. The irradiation induces a cis-trans isomerization of the anthracene derivative in a part of the microcrystal, which leads to the separation of an outer layer having a thickness of 200-600 nm. The exfoliated microcrystal may be irradiated again with pulses of light of a same or different wavelength.

APPARATUS AND METHOD

A method of attaching a release liner to a sanitary pad is disclosed. The method comprises: applying a pattern of adhesive, preferably water based pressure sensitive adhesive, to a sheet of release liner material; drying a sheet of release liner material comprising an adhesive pattern; overlaying a sanitary pad on the dried release liner material and adhesive pattern; and compressing the overlaid sanitary pad and dried release liner together so as to adhere the dried adhesive to the sanitary pad.