UST857039I4 - available copy - Google Patents
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- Publication number
- UST857039I4 UST857039I4 US T857039 I4 UST857039 I4 US T857039I4
- Authority
- US
- United States
- Prior art keywords
- available copy
- density
- published
- acrylonitrile
- fiber
- Prior art date
Links
- 239000000835 fiber Substances 0.000 description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002209 hydrophobic Effects 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 230000003389 potentiating Effects 0.000 description 1
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 1
- JJMIAJGBZGZNHA-UHFFFAOYSA-N sodium;styrene Chemical compound [Na].C=CC1=CC=CC=C1 JJMIAJGBZGZNHA-UHFFFAOYSA-N 0.000 description 1
Definitions
- Specflenflo- High-density non-woven st i uc tures which are easily convened to low-density structures on mechanical working, comprising acrylic bicomponent fibers with a recoilindexofsbom60tosbout90sndinwhichthemore hydrophobic component comprises about 60 to about 75 of the fiber.
- Discrete tress of inter-filament entanglement and bonding amount to 10% or less of the total volume.
- An original density of 29 to 36 lbs/ft. is reduced to 3 to 10 lbeJft. by gentle mechenionl working.
- the staple fibers are side-by-side bicomponent fibers in which one component is polyacrylonitrile and the other component is a copolymer of acrylonitrile and sodium styrene sulfonste, e.g. 96% acrylonitrile and 4% sodium styrene sulfonate.
Description
.151 AVAlLABLE COPY UNITED STATES PATENT OFFICE Published 1t the request of the sppllcnnt or owner in accordance with the Notice of Apr. 11, 1968, 840 0.6. 1221. Identification is by serial number of the lppliation and the heedlnl indicate! the number of pages of specification, including claims. and 01' sheets of drawing contained in the nppllontion u originally filed. The me of this application in lnilable to the public for inlpeetion; reproduction mny be purchased for 30 cen per sheet.
Application: published under the Defenlive Publiontion Prom-um have not been examined as to the merit: of alleged invention. he Potent Ofllce makes no man u to the novelty of the discloeed eubject nutter.
PUBLISHED DECEMBER 24, 1968 7} 5 Z c 57 HIGH DENSITY NON-WOVEN FIBROUS BA'IT lm imnrmgwmv mmnn duPolt 1. NM Mend Company,Wllmlngton,DeL,
wore
emzm No Drawing. 11 Specflenflo- High-density non-woven st i uc tures, which are easily convened to low-density structures on mechanical working, comprising acrylic bicomponent fibers with a recoilindexofsbom60tosbout90sndinwhichthemore hydrophobic component comprises about 60 to about 75 of the fiber. Discrete tress of inter-filament entanglement and bonding amount to 10% or less of the total volume. An original density of 29 to 36 lbs/ft. is reduced to 3 to 10 lbeJft. by gentle mechenionl working. Preferably, the staple fibers are side-by-side bicomponent fibers in which one component is polyacrylonitrile and the other component is a copolymer of acrylonitrile and sodium styrene sulfonste, e.g. 96% acrylonitrile and 4% sodium styrene sulfonate.
Recoil index- 2 100,
wherel istheextendedlen thofthefiberandkisthe largest dimension of the fiber after retraction.
Family
ID=
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