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Dip-forming composition and dip-formed article
US9637621B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9637621-B2 |
| Application number | US-201414909616-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2014 |
| Priority date | Sep 30, 2013 |
| Publication date | May 2, 2017 |
| Grant date | May 2, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A dip-forming composition which contains a weight average molecular weight 10,000 to 5,000,000 synthetic polyisoprene latex, a polycarboxylic acid and/or salt of a polycarboxylic acid, a sulfur-based vulcanizer, and a vulcanization accelerator is provided. According to the invention, a dip-forming composition which can suppress formation of coarse coagulum during aging and which can give a dip-formed article which is excellent in tensile strength and elongation even when the aging temperature is relatively low and the aging time is relatively short and, further, has excellent safety even when used in contact with the human body can be provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A dip-forming composition containing a latex of synthetic polyisoprene having a weight average molecular weight of 10,000 to 5,000,000, a homopolymer of a methacrylic acid and/or metal salt of a homopolymer of a methacrylic acid, a sulfur-based vulcanizer, and a vulcanization accelerator. 2. The dip-forming composition according to claim 1 wherein the polycarboxylic acid and/or salt of a polycarboxylic acid is a polymer which is polymerized using an oil-soluble polymerization initiator or salt of the polymer. 3. The dip-forming composition according to claim 1 , wherein the metal salt is a sodium salt. 4. The dip-forming composition according to claim 1 wherein the homopolymer of the methacrylic acid and/or metal salt of the homopolymer of the methacrylic acid has a weight average molecular weight of 1,000 to 300,000. 5. The dip-forming composition according to claim 1 wherein a content of the homopolymer of the methacrylic acid and/or metal salt of the homopolymer of the methacrylic acid is 0.01 to 20 parts by weight with respect to 100 parts by weight of the synthetic polyisoprene. 6. The dip-forming composition according to claim 1 further containing zinc oxide. 7. A dip-formed article obtained by dip-forming the dip-forming composition according to claim 1 .
Assignees
Inventors
Classifications
- C08L33/02Primary
Homopolymers or copolymers of acids; Metal or ammonium salts thereof · CPC title
containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title
of metals · CPC title
- C08L9/10Primary
Latex (C08L9/04, C08L9/08 take precedence) · CPC title
Crosslinking · CPC title
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- What does patent US9637621B2 cover?
- A dip-forming composition which contains a weight average molecular weight 10,000 to 5,000,000 synthetic polyisoprene latex, a polycarboxylic acid and/or salt of a polycarboxylic acid, a sulfur-based vulcanizer, and a vulcanization accelerator is provided. According to the invention, a dip-forming composition which can suppress formation of coarse coagulum during aging and which can give a dip-…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L33/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 02 2017 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).