Latex for molding use, composition for dip molding use, and dip-molded article
US-9546239-B2 · Jan 17, 2017 · US
Latex composition
US11098148B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11098148-B2 |
| Application number | US-201716067649-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 23, 2017 |
| Priority date | Jan 27, 2016 |
| Publication date | Aug 24, 2021 |
| Grant date | Aug 24, 2021 |
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Abstract
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A latex composition is formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer. In the latex composition, the aqueous solution of an aluminum compound preferably has a pH of 5 to 13. In the latex composition, the aqueous solution of an aluminum compound is preferably an aqueous solution of a metal salt of aluminate.
First claim
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The invention claimed is: 1. A latex composition formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene, wherein the carboxyl group-containing synthetic polyisoprene is obtained by graft polymerization of a monomer having a carboxyl group onto a synthetic polyisoprene, the synthetic polyisoprene being a homopolymer of isoprene, an introduction proportion of the monomer having a carboxyl group into the carboxyl group-containing synthetic polyisoprene being 1 to 3 wt % with respect to all isoprene units, the monomer having a carboxyl group being acrylic acid or methacrylic acid, wherein the aqueous solution of an aluminum compound is an aqueous solution of a sodium aluminate, wherein the amount of the aluminum compound is 0.5 to 5 parts by weight, with respect to 100 parts by weight of the carboxyl group-containing synthetic polyisoprene, in terms of solid content, wherein the latex composition has a pH of from 7 to 13, and wherein the aqueous solution of an aluminum compound has a pH of 5 to 13. 2. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanizing agent with respect to 100 parts by weight of the carboxyl group-containing synthetic polyisoprene. 3. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanization accelerator with respect to 100 parts by weight of the carboxyl group-containing synthetic polyisoprene. 4. A molded film consisting of the latex composition according to claim 1 . 5. A method for producing a dip-molded product, comprising a step of dip-molding the latex composition according to claim 1 .
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- What does patent US11098148B2 cover?
- A latex composition is formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer. In the latex composition, the aqueous solution of an aluminum compound preferably has a pH of 5 to 13. In the latex composition, the aqueous solution of an aluminum compou…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08J5/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 24 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).