Latex composition for dip-forming including carboxylic acid modified-nitrile based copolymer latex and dip-formed article perepared therefrom
US-2017283599-A1 · Oct 5, 2017 · US
Latex composition for dip molding and dip-molded article
US12528935B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12528935-B2 |
| Application number | US-202117923064-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 20, 2021 |
| Priority date | May 27, 2020 |
| Publication date | Jan 20, 2026 |
| Grant date | Jan 20, 2026 |
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Abstract
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A latex composition for dip molding including a latex of a conjugated diene polymer (A) having a methyl ethyl ketone insolubles content of 50% by weight or less, and a latex of a polymer (B) having a methyl ethyl ketone insolubles content of 55% by weight or more.
First claim
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The invention claimed is: 1 . A latex composition for dip molding comprising: a latex of a conjugated diene polymer (A) having a methyl ethyl ketone insolubles content of 0.1 to 30% by weight; and a latex of a polymer (B) having a methyl ethyl ketone insolubles content of 55% by weight or more. 2 . The latex composition for dip molding according to claim 1 , wherein the conjugated diene polymer (A) has a Young's modulus of 0.8 MPa or less, and the polymer (B) has a Young's modulus of 1 MPa or more. 3 . The latex composition for dip molding according to claim 1 , wherein the conjugated diene polymer (A) has a degree of swelling in methyl ethyl ketone of 55 times or more, and the polymer (B) has a degree of swelling in methyl ethyl ketone of 45 times or less. 4 . The latex composition for dip molding according to claim 1 , wherein the conjugated diene polymer (A) is a nitrile group-containing conjugated diene polymer having a methyl ethyl ketone insolubles content of 0.1 to 30% by weight. 5 . The latex composition for dip molding according to claim 1 , wherein the conjugated diene polymer (A) is present in an amount of 40 parts by weight or more in 100 parts by weight of polymer components. 6 . The latex composition for dip molding according to claim 1 , wherein the polymer (B) is a nitrile group-containing conjugated diene polymer having a methyl ethyl ketone insolubles content of 55% by weight or more or a polyurethane resin having a methyl ethyl ketone insolubles content of 55% by weight or more. 7 . The latex composition for dip molding according to claim 1 , further comprising a sulfur-based cross-linking agent. 8 . A dip-molded article formed using the latex composition for dip molding according to claim 1 . 9 . A dip-molded article formed by soaking a substrate with the latex composition for dip molding according to claim 1 .
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- What does patent US12528935B2 cover?
- A latex composition for dip molding including a latex of a conjugated diene polymer (A) having a methyl ethyl ketone insolubles content of 50% by weight or less, and a latex of a polymer (B) having a methyl ethyl ketone insolubles content of 55% by weight or more.
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L75/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 20 2026 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).