Process to produce a vinylidene chloride-based heteropolymer
US-2018273726-A1 · Sep 27, 2018 · US
Process to produce a vinylidene chloride-based heteropolymer
US10059830B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10059830-B2 |
| Application number | US-201415034671-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 14, 2014 |
| Priority date | Nov 11, 2013 |
| Publication date | Aug 28, 2018 |
| Grant date | Aug 28, 2018 |
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Abstract
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A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer is provided.
First claim
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We claim: 1. A process to prepare a vinylidene chloride copolymer, wherein the process comprises: copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of an alkyl acrylate, a non-vinylidene chloride vinyl monomer and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinylidene chloride and the at least one comonomer, and wherein the indicator is 2,2′-(2,5-thiophenylenediyl)bis(5-tert-butylbenzoxazole). 2. The process according to claim 1 , wherein the at least one comonomer is methyl acrylate or vinyl chloride. 3. The process according to claim 1 , wherein the copolymerizing occurs in a suspension polymerization process. 4. The process according to claim 1 , wherein the copolymerizing occurs in an emulsion polymerization process. 5. The process according to claim 1 , further comprising adding at least one additive selected from the group consisting of a plasticizer and an epoxidized oil. 6. The process according to claim 5 , wherein prior to polymerization, the indicator used for addition is prepared by uniformly mixing it with at least a portion of at least one from the group selected from vinylidene chloride, the at least one comonomer, and the at least one additive. 7. The process according to claim 1 , further comprising adding a suspending agent to the vinylidene chloride and at least one comonomer prior to the copolymerizing step.
Assignees
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Classifications
containing heterocyclic rings · CPC title
Quinones · CPC title
- C08F214/08Primary
Vinylidene chloride · CPC title
Aldehydes; Ketones · CPC title
used for films · CPC title
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- What does patent US10059830B2 cover?
- A process to prepare a vinylidene chloride heteropolymer comprising copolymerizing vinylidene chloride with at least one comonomer selected from the group consisting of alkyl acrylates, non-vinylidene chloride vinyl monomers and combinations thereof in the presence of an indicator, wherein the indicator is soluble in vinylidene chloride, the at least one comonomer, or a mixture of the vinyliden…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08F214/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 28 2018 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).