Reciprocating-plate column reactor for epoxidation of epoxy resins
US-9527950-B2 · Dec 27, 2016 · US
Epoxy resin, production method, epoxy resin composition and cured product of same
US11015019B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11015019-B2 |
| Application number | US-201716301131-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2017 |
| Priority date | May 18, 2016 |
| Publication date | May 25, 2021 |
| Grant date | May 25, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
Provided are an epoxy resin including: an epoxidized product of monoalkyl dihydroxybenzene; and a compound that is detected in the molecular weight range from a molecular weight at the peak top of the epoxidized product of the monoalkyl dihydroxybenzene to the molecular weight at the peak top+20 to 40 and has a peak area % of 0.1% to 0.8% in a GPC chart, and an epoxy resin including an epoxidized product of monoalkyl catechol in which the ratio of the total content of a cyclic compound having a cyclic structure that has two adjacent oxygen atoms derived from the monoalkyl catechol as constituent atoms and a monoglycidyletherified product of the monoalkyl catechol to the content of a diglycidyletherified product of the monoalkyl catechol is in the range of 0.10 to 0.40 as measured by high performance liquid chromatography.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing an epoxy resin, comprising: reacting epichlorohydrin with monoalkyl dihydroxybenzene that has an alkyl group having 4 to 8 carbon atoms as a substituent on an aromatic ring and dialkyl dihydroxybenzene that has two alkyl groups each having 4 to 8 carbon atoms as substituents on an aromatic ring such that the mass ratio of the monoalkyl dihydroxybenzene to the dialkyl dihydroxybenzene is in the range of 99.1/0.9 to 99.9/0.1. 2. The method of producing an epoxy resin according to claim 1 , wherein the monoalkyl dihydroxybenzene is monoalkyl catechol, and the dialkyl dihydroxybenzene is dialkyl catechol.
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Classifications
containing a filler · CPC title
comprising organic materials, e.g. plastics or resins · CPC title
using moulds · CPC title
characterised by the additives used in the prepolymer mixture · CPC title
Epoxynovolacs · CPC title
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- What does patent US11015019B2 cover?
- Provided are an epoxy resin including: an epoxidized product of monoalkyl dihydroxybenzene; and a compound that is detected in the molecular weight range from a molecular weight at the peak top of the epoxidized product of the monoalkyl dihydroxybenzene to the molecular weight at the peak top+20 to 40 and has a peak area % of 0.1% to 0.8% in a GPC chart, and an epoxy resin including an epoxidiz…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C08G59/063. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 25 2021 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).