Pressure sensitive adhesive article and method of reinforcing a vehicular member
US-2018111352-A1 · Apr 26, 2018 · US
Chloroprene rubber latex adhesive composition
US11479698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11479698-B2 |
| Application number | US-201716323975-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2017 |
| Priority date | Sep 2, 2016 |
| Publication date | Oct 25, 2022 |
| Grant date | Oct 25, 2022 |
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Abstract
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Provided is a chloroprene rubber latex adhesive composition superior in initial adhesive strength and normal adhesive strength and also in thermal creep resistance with adherend. A chloroprene rubber latex adhesive composition includes a carboxy-modified chloroprene-based copolymer latex (A) containing a copolymer of chloroprene monomer and an ethylenic unsaturated carboxylic acid and a polyvinylalcohol, a chloroprene-based polymer latex (B) containing a chloroprene homopolymer or a copolymer of chloroprene monomer and other monomer and a rosin acid metal salt and a chlorinated polyolefin resin emulsion (C), wherein the content ratio of the carboxy-modified chloroprene-based copolymer latex (A) to the chloroprene-based polymer latex (B) is 80:20 to 20:80 as solid matter.
First claim
Opening claim text (preview).
The invention claimed is: 1. A chloroprene rubber latex adhesive composition comprising a carboxy-modified chloroprene-based copolymer latex (A) containing a copolymer of chloroprene monomer and an ethylenic unsaturated carboxylic acid and a polyvinylalcohol, a chloroprene-based polymer latex (B) containing a chloroprene homopolymer or a copolymer of chloroprene monomer and other monomers and a rosin acid metal salt and a chlorinated polyolefin resin emulsion (C), wherein a content ratio of the carboxy-modified chloroprene-based copolymer latex (A) to the chloroprene-based polymer latex (B) is 80:20 to 20:80 as solid matter, and a content of the chlorinated polyolefin resin emulsion (C) is 1 to 50 parts by mass as solid matter with respect to 100 parts by mass as solid matter of a total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B). 2. The chloroprene rubber latex adhesive composition according to claim 1 , further comprising a tackifying resin in an amount of 1 to 100 parts by mass as solid matter and zinc oxide in an amount of 0.5 to 10 parts by mass as solid matter with respect to 100 parts by mass as solid matter of a total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B). 3. The chloroprene rubber latex adhesive composition according to claim 1 , for use in adhesion when at least one adherend is a polyolefin. 4. The chloroprene rubber latex adhesive composition according to claim 1 , wherein the content of the chlorinated polyolefin resin emulsion (C) is 5 to 50 parts by mass as solid matter with respect to 100 parts by mass as solid matter of the total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B). 5. The chloroprene rubber latex adhesive composition according to claim 1 , wherein the content of the chlorinated polyolefin resin emulsion (C) is 15 to 50 parts by mass as solid matter with respect to 100 parts by mass as solid matter of the total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B). 6. The chloroprene rubber latex adhesive composition according to claim 1 , further comprising a tackifying resin in an amount of 20 to 100 parts by mass as solid matter and zinc oxide in an amount of 0.5 to 10 parts by mass as solid matter with respect to 100 parts by mass as solid matter of a total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B). 7. A chloroprene rubber latex adhesive composition comprising a carboxy-modified chloroprene-based copolymer latex (A) containing a copolymer of chloroprene monomer and an ethylenic unsaturated carboxylic acid and a polyvinylalcohol, a chloroprene-based polymer latex (B) containing a chloroprene homopolymer or a copolymer of chloroprene monomer and other monomers and a rosin acid metal salt, a chlorinated polyolefin resin emulsion (C), a tackifying resin, and zinc oxide, wherein a content ratio of the carboxy-modified chloroprene-based copolymer latex (A) to the chloroprene-based polymer latex (B) is 80:20 to 20:80 as solid matter, a content of the tackifying resin is 20 to 100 parts by mass as solid matter and a content of the zinc oxide is 0.5 to 10 parts by mass as solid matter with respect to 100 parts by mass as solid matter of a total content of the carboxy-modified chloroprene-based copolymer latex (A) and the chloroprene-based polymer latex (B).
Assignees
Inventors
Classifications
by reaction with halogens or compounds containing halogen (C09J123/32 takes precedence) · CPC title
containing anhydride, COOH or COOM groups, with M being metal or onium-cation · CPC title
Rosin · CPC title
- C09J111/02Primary
Latex · CPC title
of zinc · CPC title
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Frequently asked questions
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- What does patent US11479698B2 cover?
- Provided is a chloroprene rubber latex adhesive composition superior in initial adhesive strength and normal adhesive strength and also in thermal creep resistance with adherend. A chloroprene rubber latex adhesive composition includes a carboxy-modified chloroprene-based copolymer latex (A) containing a copolymer of chloroprene monomer and an ethylenic unsaturated carboxylic acid and a polyvin…
- Who is the assignee on this patent?
- Denka Company Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09J111/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 25 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).