Supercharge Your Innovation With Domain-Expert AI Agents!

Liquid impermeable and moisture vapor permeable carpet cushion

A carpet and water repellency technology, applied in the field of carpet pads, can solve the problem of reducing removal or evaporating spilled liquid, and achieve the effect of enhancing resistance

Inactive Publication Date: 2008-06-04
3M INNOVATIVE PROPERTIES CO
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these cases, the would-be impermeable barrier becomes a burden because it greatly reduces the ability to remove or evaporate spilled liquid from the construction

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0057] Using a conventional heated roll calendar (calendar) laminator, by laminating the nonwoven to a standard 7 / 16 inch thick with hot melt polyolefin adhesive nonwoven web (from Spunfab, Ltd., Cuyahoga Falls, Ohio) , 8 lbs / ft3 of rebonded foam sheets to prepare prototype carpet pad constructions. These samples were tested for static water repellency, water resistance and simulated walking wet resistance as described in the test method above. Performance data are given in Table 1.

[0058] Likewise for commercially available branded carpet pad samples (Odor Eater with moisture barrier TM rug pads, and contain DuPont TM Hytrel® Breathable Moisture Barrier-Based Stainmaster TM Carpet Pad) to test static water repellency, water resistance and simulated walking moisture resistance. Odor Eater TM The samples are virgin foam carpet pads, not rebonded carpet pads. The barrier layer appears to be a continuous film that has been pierced or "burned through" during fabrication s...

Embodiment 8 and 9

[0064] Examples 8 and 9 were prepared according to Examples 1-7, except that the nonwovens used for the barrier layer in the carpet pad construction were nonwoven #5 and nonwoven #6, respectively.

[0065] moisture vapor permeability

[0066] Assay Example 5 and Odor Eater TM and Stainmaster TM Moisture vapor transmission rate (MVTR) of commercial carpet pad products. MVTR (upright cup) is determined according to ASTM E 96 Standard Test - Water Vapor Transmission Rate, with the following modifications. Samples for testing were fabricated by perforating a circular area of ​​a complete pad construction including foam and barrier. Mask the barrier layer with adhesive tape to have the same effective surface area. Continue to mask the open foam edges with a surface mask and place continuously in the reservoir to prevent moisture loss at any point other than the test surface. Tests were performed in a room at a constant temperature of 70°F at about 70% RH and about 50% RH. A f...

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

No PUM Login to View More

Abstract

A carpet cushion comprisings a barrier layer bonded to a base layer wherein the carpet cushion exhibits a Static Repellency Rating of at least 0, a Hydrostatic Head of at least 20 centimeters water, and an MVTR (at 70 DEG F and 50% RH) of at least 1000.

Description

technical field [0001] The present invention relates to carpet pads for use under carpets or rugs. Background technique [0002] Most home carpeting is laid over an underlayment called a carpet pad (sometimes called a pad or padding). Carpet pads provide extra softness and comfort over carpeting alone, increase the thermal and acoustic insulation of floor coverings, and increase the durability and appearance retention of carpeting. Many carpet manufacturers recommend laying new carpet stock over new carpet pads. [0003] Many current carpet pads are made from foam rubber, which may be "prime" foam (i.e., new foam in substantially continuous sheet form), or "rebonded" foam (i.e., new or recycled foam and / or foam rubber that is chopped into small sizes and then bonded together to form continuous sheets). Other materials used include various fiber mats and webs. [0004] Carpet pads typically have an upper layer that provides mechanical stability and tear resistance to the ...

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): D06N7/00A47G27/04
CPCB32B5/022B32B2307/7246B32B2307/7145B32B2307/73B32B2307/581B32B2471/02B32B2250/20B32B2250/02B32B2266/0278A47G27/0468B32B2266/025B32B5/26B32B2307/758B32B5/24D06N7/0089B32B2307/102B32B5/245Y10T428/249953Y10T428/23979Y10T442/2508Y10T442/2525Y10T442/3325
Inventor 阿伦·D·奥泰森布雷德利·W·伊顿特洛伊·K·伊丝塔苏珊娜·M·纳尔逊贾森·J·布滕申
Owner 3M INNOVATIVE PROPERTIES CO
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com