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

Flexible fibrous surface-treating article with low formaldehyde off-gassing

a flexible fibrous surface and off-gassing technology, which is applied in the field of flexible fibrous surface treatment articles with low formaldehyde off-gassing, can solve the problems of reduced physical properties such as strength and tensile modulus of alternate binder systems with lower off-gassing of formaldehyde, and achieves higher maximum load, better physical properties, and higher tensile modulus

Inactive Publication Date: 2019-08-08
3M INNOVATIVE PROPERTIES CO
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The flexible fibrous surface-treating article of the present invention has several advantages over other similar products. It has lower levels of formaldehyde off-gassing, making it safer to use. It also has better physical properties, such as being stronger and more rigid, compared to other products. Additionally, it combines the benefits of lower formaldehyde off-gassing with superior physical properties, making it the superior flexible fibrous surface-treating article.

Problems solved by technology

Binder systems currently used in commercial floor pad products typically result in off-gassing of formaldehyde after the product has been manufactured.
Formaldehyde has a distinct smell and is highly toxic to all animals.
Alternate binder systems with lower off-gassing of formaldehyde suffer from decreased physical properties such as strength and tensile modulus under dry, wet, or hot conditions.

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
  • Flexible fibrous surface-treating article with low formaldehyde off-gassing
  • Flexible fibrous surface-treating article with low formaldehyde off-gassing
  • Flexible fibrous surface-treating article with low formaldehyde off-gassing

Examples

Experimental program
Comparison scheme
Effect test

example 1

n of Floor Pads

[0045]Webs were formed using a conventional web making machine (trade designation “Rando Webber”). The web formed was a blend of fibers including 75 weight percent of crimped polyethylene terephthalate (“PET”) staple fibers (50 denier, 58 mm long), and 25 weight percent of crimped sheath-core melt-bondable polyester staple fibers (15 denier, 58 mm long; with a core of polyethylene terephthalate and a sheath that was a copolymer of ethylene terephthalate and ethylene isophthalate). The formed web was heated in a convection oven for about 3 minutes at 320° F. (160° C.) to fuse the melt-bondable fibers together at points of intersection to form a prebond web. The prebond web weight was approximately 400 grams per square meter.

[0046]Samples of the prebond webs were cut to the dimensions of 1×7 inches in the cross-web direction (i.e. wherein the long dimension running sideways across the web as it is being made, rather than down-web). Samples were dipped in a curable compo...

example 2

yde Emissions

[0047]Formaldehyde emissions of the Samples made in Example 1 were measured. Emissions were measured by reaction with 2,4 dinitrophenylhydrazine [DNPH] to form the corresponding hydrazone, which was readily and sensitively detected by liquid chromatography. Sampling tubes containing silica gel impregnated with 2,4-DNPH were placed on a heated micro-chamber device having a volume of 44 mL (Marks micro-chamber), into which the coated non-woven sample was placed about 1 day to 1 week after the non-woven sample was finished curing and ready for packaging. The samples were heated to 65° C. (150° F.) for 30 minutes with a flow of helium at 50 mL / min passing through the sample chamber and into the collection tube. The tubes were then cut open and desorbed with 5 mL of acetonitrile, and the extract solution run by HPLC. The formaldehyde-DNPH content was determined from the standard calibration curve, and the formaldehyde concentration was calculated from the formaldehyde-DNPH r...

example 3

Properties at Room Temperature

[0051]The maximum load and tensile modulus of the Samples prepared in Example 1 were measured at room temperature. Tensile characterization was performed on an Instron tester, Model 59CP, with Bluehill 3 analysis software. Maximum load and modulus where determined at a jaw speed of 10 inches / minute. Samples were tested in triplicate.

[0052]The maximum load and tensile modulus of the Samples is given in Table 4. Table 5 describes the change in maximum load caused by the crosslinker, as compared to crosslinker-free conditions. FIG. 2 illustrates the maximum load of the Samples at room temperature.

TABLE 4Maximum load and tensile modulusof Samples at room temperature.Avg Max LoadAvg ModulusLatexXL(lbf)(psi)Trinseo XU31570Resimene 74760.1371Trinseo XU31570V02-L255.9375Trinseo XU31570CX-10054.6386Trinseo XU31570Joncryl FLX-CL164.5406Rovene 5900Resimene 74762.4239Rovene 5900V02-L249.9207Rovene 5900CX-10062.8260Rovene 5900Joncryl FLX-CL154.1225Rhoplex HA-16Resim...

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
temperatureaaaaaaaaaa
volumeaaaaaaaaaa
temperatureaaaaaaaaaa
Login to View More

Abstract

Various embodiments disclosed related to flexible fibrous surface-treating articles with low formaldehyde off-gassing. In various embodiments, the present invention provides a flexible fibrous surface-treating article including an open, lofty, nonwoven web including fibers. The flexible fibrous surface-treating article also includes a binder that coats the fibers of the nonwoven web. The binder includes a cured product of a curable composition including a latex and a crosslinker. The flexible fibrous surface-treating article heated to 65° C. in a closed space for 30 minutes emits less than about 6 micrograms of gaseous formaldehyde total per gram of the flexible fibrous surface-treating article.

Description

BACKGROUND[0001]Lofty, open, non-woven three-dimensional abrasive articles can be used for cleaning and polishing floors and other surfaces. Binder systems currently used in commercial floor pad products typically result in off-gassing of formaldehyde after the product has been manufactured. Formaldehyde has a distinct smell and is highly toxic to all animals. The emitted formaldehyde can be a component of the binder system or a byproduct of the cured binder system. Alternate binder systems with lower off-gassing of formaldehyde suffer from decreased physical properties such as strength and tensile modulus under dry, wet, or hot conditions.SUMMARY OF THE INVENTION[0002]In various embodiments, the present invention provides a flexible fibrous surface-treating article including an open, lofty, nonwoven web including fibers. The flexible fibrous surface-treating article also includes a binder that coats the fibers of the nonwoven web. The binder is a cured product of a curable composit...

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(United States)
IPC IPC(8): D04H1/64D04H1/435D04H1/587D06M15/693D06M15/564D06M15/263
CPCD06M15/693C08K5/29D06M15/263D06M2101/32D04H1/587D06M15/564D04H1/64D04H1/435C08C19/36
Inventor ALTSHULER, GORDON L.TAI, HUIWENLUND, JESSE D.
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