Carboxylic acid modified-nitrile based copolymer latex for dip-forming, latex composition for dip-forming comprising the same, and product thereof
US-9803070-B2 · Oct 31, 2017 · US
Latex composition
US11472908B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11472908-B2 |
| Application number | US-201916957479-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2019 |
| Priority date | Jan 12, 2018 |
| Publication date | Oct 18, 2022 |
| Grant date | Oct 18, 2022 |
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Abstract
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A latex composition having a nitrile rubber containing an α,β-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.
First claim
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The invention claimed is: 1. A latex composition comprising: a nitrile rubber containing an α,β-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids. 2. The latex composition according to claim 1 , wherein the latex composition has a cumyl alcohol content of 10 to 10,000 ppm by weight based on the weight of all the solids present in the latex composition. 3. The latex composition according to claim 1 , wherein the nitrile rubber further comprises an ethylenically unsaturated acid monomer unit. 4. The latex composition according to claim 3 , wherein the ethylenically unsaturated acid monomer unit is a carboxyl group-containing ethylenically unsaturated monomer unit. 5. A laminate comprising a fiber substrate and a rubber layer laminated thereon, the fiber substrate comprising a plurality of fibers, the rubber layer being formed from the latex composition according to claim 1 .
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using non-woven fabrics · CPC title
Butadiene · CPC title
by directly applying the resin (D06N3/0045 takes precedence) · CPC title
- C08F236/14Primary
containing elements other than carbon and hydrogen · CPC title
Complexes with metal-heteroatom-bonds · CPC title
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- What does patent US11472908B2 cover?
- A latex composition having a nitrile rubber containing an α,β-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08F236/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 18 2022 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).