Latex composition for dip forming and dip-formed article prepared therefrom
US-2017298210-A1 · Oct 19, 2017 · US
Latex composition
US11898024B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11898024-B2 |
| Application number | US-201816482069-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 9, 2018 |
| Priority date | Feb 22, 2017 |
| Publication date | Feb 13, 2024 |
| Grant date | Feb 13, 2024 |
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Abstract
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A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.
First claim
Opening claim text (preview).
The invention claimed is: 1. A latex composition comprising: a carboxy-modified synthetic polyisoprene latex; a zinc diisopropyl xanthate; and a metal oxide, wherein a carboxy-modified synthetic polyisoprene constituting the carboxy-modified synthetic polyisoprene latex is a polymer obtained by modifying a synthetic polyisoprene with a monomer having a carboxyl group selected from the group consisting of acrylic acid and methacrylic acid, and a content of isoprene unit in the synthetic polyisoprene is 95 wt % or more with respect to the total monomer unit, a content of the zinc diisopropyl xanthate is 0.01 to 10 parts by weight, with respect to 100 parts by weight of the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex, and the latex composition is free from dithiocarbamate vulcanization accelerators and thiazole vulcanization accelerators. 2. The latex composition according to claim 1 , wherein a modification rate by carboxyl groups in the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex, as calculated based on (the number of carboxyl groups/the total number of monomer units of the carboxy-modified synthetic polyisoprene)×100 is 0.01 to 5%. 3. The latex composition according to claim 1 , further comprising a sulfur vulcanizing agent. 4. The latex composition according to claim 1 , wherein a modification rate by carboxyl groups in the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex, as calculated based on (the number of carboxyl groups/the total number of monomer units of the carboxy-modified synthetic polyisoprene)×100 is 0.2 to 5%. 5. The latex composition according to claim 1 , wherein the content of the zinc diisopropyl xanthate is 0.5 to 5 parts by weight, with respect to 100 parts by weight of the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex. 6. The latex composition according to claim 1 , wherein a modification rate by carboxyl groups in the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex, as calculated based on (the number of carboxyl groups/the total number of monomer units of the carboxy-modified synthetic polyisoprene)×100 is 0.2 to 5%, and the content of the zinc diisopropyl xanthate is 0.5 to 5 parts by weight, with respect to 100 parts by weight of the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex. 7. A method for production of a molded film comprising molding the latex composition according to claim 1 into a film. 8. A method for production of an adhesive layer-forming substrate comprising forming an adhesive layer comprising the latex composition according to claim 1 on a surface of a substrate.
Assignees
Inventors
Classifications
- C08L15/00Primary
Compositions of rubber derivatives (C08L11/00, C08L13/00 take precedence) · CPC title
Manufacture of films or sheets · CPC title
Adhesives based on rubber derivatives (C09J111/00, C09J113/00 take precedence) · CPC title
Characterised by the use of rubber derivatives (C08J2311/00, C08J2313/00 takes precedence) · CPC title
of zinc · CPC title
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Frequently asked questions
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- What does patent US11898024B2 cover?
- A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L15/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 13 2024 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).