Latex composition and film molded body
US-2019177517-A1 · Jun 13, 2019 · US
Latex composition
US11414536B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11414536-B2 |
| Application number | US-201916957402-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2019 |
| Priority date | Jan 12, 2018 |
| Publication date | Aug 16, 2022 |
| Grant date | Aug 16, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A latex composition including a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit.
First claim
Opening claim text (preview).
The invention claimed is: 1. A latex composition comprising: a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit. 2. The latex composition according to claim 1 , wherein the diene rubber (a) and the diene rubber (b) are present at a weight ratio [diene rubber (a)/diene rubber (b)] of 99/1 to 70/30. 3. The latex composition according to claim 1 , wherein the ethylenically unsaturated acid monomer unit contained in the diene rubber (a) is a carboxyl group-containing ethylenically unsaturated monomer unit, and the ethylenically unsaturated acid monomer unit contained in the diene rubber (b) is a carboxyl group-containing ethylenically unsaturated monomer unit. 4. The latex composition according to claim 1 , wherein the ethylenically unsaturated acid monomer unit contained in the diene rubber (b) is a carboxyl group-containing ethylenically unsaturated monomer unit, and the number of moles of carboxyl groups is 0.01 to 0.35 ephr per 100 g of the diene rubber (b). 5. The latex composition according to claim 1 , wherein the diene rubber (a) is a nitrile rubber further containing an α,β-ethylenically unsaturated nitrile monomer unit. 6. The latex composition according to claim 1 , wherein the diene rubber (b) is a nitrile rubber further containing an α,β-ethylenically unsaturated nitrile monomer unit. 7. The latex composition according to claim 1 , wherein the latex composition is used to form a rubber layer on a fiber substrate. 8. A laminate comprising a fiber substrate and a rubber layer laminated thereon, the fiber substrate comprising a plurality of fibers, the rubber layer being formed from the latex composition according to claim 1 .
Assignees
Inventors
Classifications
- C08L13/02Primary
Latex · CPC title
comprising polydienes {homopolymers} or poly-halodienes {homopolymers (B32B25/12 takes precedence)} · 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
in coated form · CPC title
Latex · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11414536B2 cover?
- A latex composition including a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit.
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L13/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 16 2022 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).