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Xylylenediamine composition and method for producing polyamide resin
US2016257784A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016257784-A1 |
| Application number | US-201415032029-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 29, 2014 |
| Priority date | Oct 31, 2013 |
| Publication date | Sep 8, 2016 |
| Grant date | — |
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Abstract
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Provided are [1] a xylylenediamine composition containing xylylenediamine and 1,2-ditolylethane wherein the content of 1,2-ditolylethane is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine; and [2] a method for producing a polyamide resin including the steps of introducing a diamine containing xylylenediamine, a dicarboxylic acid, and 1,2-ditolylethane into a reaction system and performing polycondensation reaction, wherein the amount of the 1,2-ditolylethane to be introduced is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine.
First claim
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1 . A xylylenediamine composition comprising xylylenediamine and 1,2-ditolylethane, wherein the content of the 1,2-ditolylethane is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine 2 . The xylylenediamine composition according to claim 1 , wherein the xylylenediamine is m-xylylenediamine, p-xylylenediamine, or a mixture thereof. 3 . The xylylenediamine composition according to claim 1 , wherein the xylylenediamine is m-xylylenediamine. 4 . The xylylenediamine composition according to claim 1 , wherein the content of xylylenediamine is 99.5% by mass or more. 5 . The xylylenediamine composition according to claim 1 , which is used for a raw material for polyamide resin. 6 . The xylylenediamine composition according to claim 1 , which is used for an epoxy resin curing agent. 7 . A method for producing a polyamide resin comprising the steps of introducing a diamine comprising xylylenediamine, a dicarboxylic acid, and 0.001 to 0.02 parts by mass, based on 100 parts by mass of the xylylenediamine, of 1,2-ditolylethane into a reaction system and performing a polycondensation reaction. 8 . The method for producing a polyamide resin according to claim 7 , wherein the dicarboxylic acid is at least one selected from an aliphatic dicarboxylic acid having 4 to 20 carbon atoms, terephthalic acid, and isophthalic acid. 9 . The method for producing a polyamide resin according to claim 7 , wherein the content of xylylenediamine in the diamine is 70 mol % or more, and the content of the aliphatic dicarboxylic acid having 4 to 20 carbon atoms in the dicarboxylic acid is 50 mol % or more. 10 . The method for producing a polyamide resin according to claim 8 , wherein the aliphatic dicarboxylic acid having 4 to 20 carbon atoms is at least one selected from adipic acid and sebacic acid. 11 . The method for producing a polyamide resin according to claim 7 , wherein the xylylenediamine is m-xylylenediamine, p-xylylenediamine, or a mixture thereof. 12 . The method for producing a polyamide resin according to claim 7 , wherein the xylylenediamine is m-xylylenediamine. 13 . The method for producing a polyamide resin according to claim 7 , further comprising the step of performing solid-phase polymerization.
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- What does patent US2016257784A1 cover?
- Provided are [1] a xylylenediamine composition containing xylylenediamine and 1,2-ditolylethane wherein the content of 1,2-ditolylethane is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine; and [2] a method for producing a polyamide resin including the steps of introducing a diamine containing xylylenediamine, a dicarboxylic acid, and 1,2-ditolylethane into a reacti…
- Who is the assignee on this patent?
- Mitsubishi Gas Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C08G69/28. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).