Grafted para-aramid fiber and method of making
US-2015197886-A1 · Jul 16, 2015 · US
Grafted para-aramid fiber and method of making
US9593435B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9593435-B2 |
| Application number | US-201414155449-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2014 |
| Priority date | Jan 15, 2014 |
| Publication date | Mar 14, 2017 |
| Grant date | Mar 14, 2017 |
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Abstract
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A fiber comprising poly(p-phenylene terephthalamide) having monomers such as N-(4-vinylphenyl)maleimide grafted onto the fiber surface.
First claim
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What is claimed is: 1. A fiber comprising poly(p-phenylene terephthalamide) having N-(4-vinylphenyl)maleimide groups grafted onto the fiber surface. 2. The fiber of claim 1 wherein the N-(4-vinylphenyl)maleimide groups have undergone graft polymerization onto the fiber surface. 3. The fiber of claim 1 wherein the N-(4-vinylphenyl)maleimide groups comprise 0.1 to 10 weight % of the total weight of the fiber. 4. The fiber of claim 3 wherein the N-(4-vinylphenyl)maleimide groups comprise 1 to 10 weight % of the total weight of the fiber. 5. The fiber of claim 1 wherein the hydrogen on 0.25 to 75 mole percent of the amide sites of the poly(p-phenylene terephthalamide) on the fiber surface have been replaced by grafting N-(4-vinylphenyl)maleimide groups. 6. The fiber of claim 5 wherein the hydrogen on 10 to 50 mole percent of the amide sites on the fiber surface have been replaced by grafting N-(4-vinylphenyl)maleimide groups. 7. A continuous filament yarn, cord, spun staple yarn, nonwoven fabric, floc, pulp or chopped strand comprising the fiber of claim 1 . 8. A fiber-reinforced composite comprising a matrix resin and a continuous filament yarn, spun staple yarn, nonwoven fabric, floc, pulp or chopped strand of claim 7 . 9. A fiber-reinforced rubber article comprising an elastomer and a continuous filament yarn, cord, spun staple yarn, nonwoven fabric, floc, pulp or chopped strand of claim 7 . 10. A dipped cord suitable for use in a rubber compound comprising the fiber of claim 1 coated with a styrene-butadiene-vinylpyridine rubber latex.
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Frequently asked questions
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- What does patent US9593435B2 cover?
- A fiber comprising poly(p-phenylene terephthalamide) having monomers such as N-(4-vinylphenyl)maleimide grafted onto the fiber surface.
- Who is the assignee on this patent?
- Du Pont
- What technology area does this patent fall under?
- Primary CPC classification D01F6/805. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Mar 14 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).