Latex for molding use, composition for dip molding use, and dip-molded article
US-2015376322-A1 · Dec 31, 2015 · US
Modified polymer latex production method
US11098136B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11098136-B2 |
| Application number | US-201816485343-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2018 |
| Priority date | Feb 24, 2017 |
| Publication date | Aug 24, 2021 |
| Grant date | Aug 24, 2021 |
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Abstract
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A method for producing a modified polymer latex includes: adding a carboxyl group-containing compound, an anionic surfactant having a weight-average molecular weight of less than 500, and an anionic surfactant having a weight-average molecular weight of 500 or more to a polyisoprene latex; and reacting the polyisoprene with the carboxyl group-containing compound in a presence of the anionic surfactant having a weight-average molecular weight of less than 500 and the anionic surfactant having a weight-average molecular weight of 500 or more.
First claim
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The invention claimed is: 1. A method for producing a modified polymer latex, comprising: adding a carboxyl group-containing compound, an anionic surfactant having a weight-average molecular weight of less than 500, and an anionic surfactant having a weight-average molecular weight of 500 or more to a polyisoprene latex; and reacting polyisoprene contained in the polyisoprene latex with the carboxyl group-containing compound in a presence of the anionic surfactant having a weight-average molecular weight of less than 500 and the anionic surfactant having a weight-average molecular weight of 500 or more. 2. The method for producing a modified polymer latex according to claim 1 , wherein the anionic surfactant having a weight-average molecular weight of 500 or more is a compound having a sulfonic acid group. 3. The method for producing a modified polymer latex according to claim 1 , wherein the anionic surfactant having a weight-average molecular weight of 500 or more is a compound having a naphthalene structure. 4. The method for producing a modified polymer latex according to claim 1 , wherein an amount of the anionic surfactant having a weight-average molecular weight of 500 or more to be added is 0.01 to 10 parts by weight with respect to 100 parts by weight of polyisoprene contained in the polyisoprene latex. 5. The method for producing a modified polymer latex according to claim 1 , wherein the anionic surfactant having a weight-average molecular weight of less than 500 is an alkylbenzene sulfonate. 6. The method for producing a modified polymer latex according to claim 1 , wherein an amount of the anionic surfactant having a weight-average molecular weight of less than 500 to be added is 0.01 to 10 parts by weight with respect to 100 parts by weight of polyisoprene contained in the polyisoprene latex. 7. A method for producing a latex composition, comprising a step of adding a cross-linking agent to the modified polymer latex obtained by the production method according to claim 1 . 8. A method for producing a dip-molded product, comprising a step of dip-molding the latex composition obtained by the production method according to claim 7 . 9. A method for producing an adhesive layer-forming substrate, comprising a step of forming an adhesive layer using a modified polymer latex obtained by the production method according to claim 1 on a surface of a substrate.
Assignees
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Classifications
Isoprene · CPC title
Emulsion polymerisation · CPC title
Isoprene · CPC title
- C08C19/36Primary
with carboxy radicals · CPC title
Crosslinking · CPC title
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- What does patent US11098136B2 cover?
- A method for producing a modified polymer latex includes: adding a carboxyl group-containing compound, an anionic surfactant having a weight-average molecular weight of less than 500, and an anionic surfactant having a weight-average molecular weight of 500 or more to a polyisoprene latex; and reacting the polyisoprene with the carboxyl group-containing compound in a presence of the anionic sur…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08C19/36. 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).