Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Antimicrobial disposable absorbent articles

An absorbent product, anti-microbial technology, applied in the direction of absorbent pads, fabrics, biocides, etc., can solve problems such as harmful toxins

Inactive Publication Date: 2011-05-04
3M INNOVATIVE PROPERTIES CO
View PDF28 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] An additional problem known to be associated with the use of certain disposable absorbent articles, such as tampons, is that certain bacteria can produce harmful toxins

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antimicrobial disposable absorbent articles
  • Antimicrobial disposable absorbent articles
  • Antimicrobial disposable absorbent articles

Examples

Experimental program
Comparison scheme
Effect test

example 1 and example 2

[0139] Samples were prepared using a batch Brabender mixing device where pelletized polylactic acid (PLA polymers, obtained as Polymer 4032D and 4060D from NatureWorks LLC) was added to the Brabender mixer and blended at 180 °C until the mixing torque stabilized . The other ingredients are then added to the mixer and all ingredients are blended until homogeneity appears. The mixture was then compressed into tablets using a hydraulic press, the platen of which was at 177°C. The microbiological activity test was carried out on the sample sheet, using the Japanese Industrial Standard (test number Z2801:2000), using Gram-positive bacteria (Staphylococcus aureus ATCC #6538) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC #9027 ). Do the same test on the photo of the PLA pair with no added ingredients. The data for this test are given in Table 1 below.

[0140] Antimicrobial Testing of Membrane Samples :

[0141] The antimicrobial properties of the extruded or pressed...

example 3-5

[0158] Blown microfiber nonwoven webs were prepared from the above masterbatches using conventional melt blowing equipment. A 31 mm (screw diameter) conical twin-screw extruder (C.W. Brabender Instruments) was used to feed a positive displacement gear pump for metering and pressurizing the aliphatic polyester polymer melt. A 25 cm wide drilled meltblown mold (8 holes per cm width) was used. The diameter of each hole is 0.38mm. The extruder temperature was 185°C, the die temperature was 180°C, the air heater temperature was 200°C, and the air manifold pressure was 103 kPa. The total polymer flow rate through the die was approximately 3.6 kg / hr. A control sample containing no enhancer or antimicrobial component (Control 2) was prepared. A control sample containing no enhancer but with an antimicrobial component (Control 3) was also prepared. For samples with less than 10% enhancer or antimicrobial additive, additional virgin PLA resin was added to the masterbatch. The prope...

example 6-8

[0163] Blown microfiber nonwoven webs were prepared as in Examples 3-5, except that propylene glycol monolaurate (PML) was used as the antimicrobial component. The properties of the nonwoven web are shown in Table 3 below.

[0164] table 3

[0165]

[0166]The tensile strength and stiffness properties were tested for Examples 3-5 and Controls 2 and 3. Peak force tensile strength was determined using an INSTRON model 5544 universal tensile testing machine with a crosshead speed of 25.4 cm / min and a gauge length of 5.1 cm. The sample size is 10.2 cm long. The tests were performed in the machine direction (MD) and cross direction (CD) of the nonwoven web. The percent elongation of the sample at peak force is recorded. Ten tests were performed on test duplicates and an average value was taken for each sample tablet. The results are shown in Table 4 below.

[0167] The stiffness properties of the webs were determined using a Gurley Flex Tester Model 4151E (Gurley Precisi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
molecular weightaaaaaaaaaa
molecular weightaaaaaaaaaa
Login to View More

Abstract

Disposable absorbent articles comprising an absorbent material and a degradable thermoplastic polymer composition comprising an aliphatic polyester and an antimicrobial composition. The antimicrobial composition includes an antimicrobial component and an enhancer component. The aliphatic polyester and antimicrobial composition are formed into webs by melt extrusion, such as nonwovens and films, that are incorporated into disposable absorbent articles, such as disposable infant diapers, adult incontinence articles, feminine hygiene articles such as sanitary napkins, panty liners and tampons, personal care wipes and household wipes to provide odor control, control of microbial growth, and control of microbial toxin production.

Description

[0001] Cross references to related patent applications [0002] This patent application is a continuation-in-part of (currently pending) US Patent Application No. 11 / 609,237, filed December 11, 2006, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to disposable absorbent articles formed from a biodegradable aliphatic polyester polymer comprising an antimicrobial composition. These are disposable absorbent articles intended to absorb body fluids, such as disposable baby diapers, feminine hygiene products including sanitary napkins, panty liners and tampons, adult incontinence products, personal care wipes, and household wipes containing microbial control materials towel. Background technique [0004] A wide variety of disposable absorbent articles are known in the art. These articles include personal absorbent articles for absorbing body fluids such as perspiration, urine, blood and menses....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/46A61L15/22A61F13/53D04H1/435D04H3/011D04H3/16
CPCA01N25/10A61B2017/00889A61F13/15252A61F2013/8414A61L15/26A61L15/46A61L15/62A61L2300/216A61L2300/22A61L2300/404A61L2300/604A61L2300/802D01F1/10D01F1/103D01F6/625D01F6/92Y10T442/2525A01N25/30A01N25/34A01N37/10A01N37/12C08L67/04
Inventor 利·E·伍德亚历克西斯·S·斯塔瑟姆弗朗西斯·E·福贝尼罗伯特·J·马吉杰里米·M·亚伍德马修·J·施密特罗纳德·W·奥森杰伊·M·杰嫩凯利·S·安德森马修·T·肖尔茨罗伯特·W·彼得森埃林·A·缪尔奈尔斯
Owner 3M INNOVATIVE PROPERTIES CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com