Method for producing water-absorbent resin
US-9221030-B2 · Dec 29, 2015 · US
Process for preparing (meth)acrylic esters
US9150673B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150673-B2 |
| Application number | US-201213543032-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2012 |
| Priority date | Jul 6, 2011 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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.
The invention relates to a process for preparing (meth)acrylic esters by esterifying (meth)acrylic acid or transesterifying at least one (meth)acrylic ester with at least one compound comprising at least one OH group in the presence of a heterogeneous catalyst comprising at least one inorganic salt, wherein the esterification or transesterification is performed in the presence of 300 to 3000 ppm of water based on the total weight of the reaction mixture.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for preparing a (meth)acrylic ester by esterifying (meth)acrylic acid or transesterifying at least one (meth)acrylic ester with at least one compound comprising at least one OH group in the presence of a heterogeneous catalyst consisting of one or more inorganic salts selected from the group consisting of K 3 PO 4 , Na 3 PO 4 , K 2 CO 3 and Na 2 CO 3 and hydrates thereof, which comprises performing the esterification or transesterification i…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
- C08F20/06Primary
Chemistry & Metallurgy · mapped topic
- C07D233/32Primary
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9150673B2 cover?
- The invention relates to a process for preparing (meth)acrylic esters by esterifying (meth)acrylic acid or transesterifying at least one (meth)acrylic ester with at least one compound comprising at least one OH group in the presence of a heterogeneous catalyst comprising at least one inorganic salt, wherein the esterification or transesterification is performed in the presence of 300 to 3000 pp…
- Who is the assignee on this patent?
- Bette Virginie, Dust Matthias, Petzoldt Jochen, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C08F20/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 06 2015 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).